Fix M1405 netbook touchpad #31

mmatviyiv · 2013-03-20T21:37:45Z

Added support for Gigabyte M1405 touchpad

SevenBits · 2013-04-03T01:43:38Z

Post this on the kernel mailing list. Torvalds doesn't do GitHub pull requests.

As the new x86 CPU bootup printout format code maintainer, I am taking immediate action to improve and clean (and thus indulge my OCD) the reporting of the cores when coming up online. Fix padding to a right-hand alignment, cleanup code and bind reporting width to the max number of supported CPUs on the system, like this: [ 0.074509] smpboot: Booting Node 0, Processors: #1 #2 #3 #4 #5 torvalds#6 torvalds#7 OK [ 0.644008] smpboot: Booting Node 1, Processors: torvalds#8 torvalds#9 torvalds#10 torvalds#11 torvalds#12 torvalds#13 torvalds#14 torvalds#15 OK [ 1.245006] smpboot: Booting Node 2, Processors: torvalds#16 torvalds#17 torvalds#18 torvalds#19 torvalds#20 torvalds#21 torvalds#22 torvalds#23 OK [ 1.864005] smpboot: Booting Node 3, Processors: torvalds#24 torvalds#25 torvalds#26 torvalds#27 torvalds#28 torvalds#29 torvalds#30 torvalds#31 OK [ 2.489005] smpboot: Booting Node 4, Processors: torvalds#32 torvalds#33 torvalds#34 torvalds#35 torvalds#36 torvalds#37 torvalds#38 torvalds#39 OK [ 3.093005] smpboot: Booting Node 5, Processors: torvalds#40 torvalds#41 torvalds#42 torvalds#43 torvalds#44 torvalds#45 torvalds#46 torvalds#47 OK [ 3.698005] smpboot: Booting Node 6, Processors: torvalds#48 torvalds#49 torvalds#50 torvalds#51 #52 #53 torvalds#54 torvalds#55 OK [ 4.304005] smpboot: Booting Node 7, Processors: torvalds#56 torvalds#57 #58 torvalds#59 torvalds#60 torvalds#61 torvalds#62 torvalds#63 OK [ 4.961413] Brought up 64 CPUs and this: [ 0.072367] smpboot: Booting Node 0, Processors: #1 #2 #3 #4 #5 torvalds#6 torvalds#7 OK [ 0.686329] Brought up 8 CPUs Signed-off-by: Borislav Petkov <[email protected]> Cc: Libin <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>

Turn it into (for example): [ 0.073380] x86: Booting SMP configuration: [ 0.074005] .... node #0, CPUs: #1 #2 #3 #4 #5 torvalds#6 torvalds#7 [ 0.603005] .... node #1, CPUs: torvalds#8 torvalds#9 torvalds#10 torvalds#11 torvalds#12 torvalds#13 torvalds#14 torvalds#15 [ 1.200005] .... node #2, CPUs: torvalds#16 torvalds#17 torvalds#18 torvalds#19 torvalds#20 torvalds#21 torvalds#22 torvalds#23 [ 1.796005] .... node #3, CPUs: torvalds#24 torvalds#25 torvalds#26 torvalds#27 torvalds#28 torvalds#29 torvalds#30 torvalds#31 [ 2.393005] .... node #4, CPUs: torvalds#32 torvalds#33 torvalds#34 torvalds#35 torvalds#36 torvalds#37 torvalds#38 torvalds#39 [ 2.996005] .... node #5, CPUs: torvalds#40 torvalds#41 torvalds#42 torvalds#43 torvalds#44 torvalds#45 torvalds#46 torvalds#47 [ 3.600005] .... node torvalds#6, CPUs: torvalds#48 torvalds#49 torvalds#50 torvalds#51 #52 #53 torvalds#54 torvalds#55 [ 4.202005] .... node torvalds#7, CPUs: torvalds#56 torvalds#57 #58 torvalds#59 torvalds#60 torvalds#61 torvalds#62 torvalds#63 [ 4.811005] .... node torvalds#8, CPUs: torvalds#64 torvalds#65 torvalds#66 torvalds#67 torvalds#68 torvalds#69 #70 torvalds#71 [ 5.421006] .... node torvalds#9, CPUs: torvalds#72 torvalds#73 torvalds#74 torvalds#75 torvalds#76 torvalds#77 torvalds#78 torvalds#79 [ 6.032005] .... node torvalds#10, CPUs: torvalds#80 torvalds#81 torvalds#82 torvalds#83 torvalds#84 torvalds#85 torvalds#86 torvalds#87 [ 6.648006] .... node torvalds#11, CPUs: torvalds#88 torvalds#89 torvalds#90 torvalds#91 torvalds#92 torvalds#93 torvalds#94 torvalds#95 [ 7.262005] .... node torvalds#12, CPUs: torvalds#96 torvalds#97 torvalds#98 torvalds#99 torvalds#100 torvalds#101 torvalds#102 torvalds#103 [ 7.865005] .... node torvalds#13, CPUs: torvalds#104 torvalds#105 torvalds#106 torvalds#107 torvalds#108 torvalds#109 torvalds#110 torvalds#111 [ 8.466005] .... node torvalds#14, CPUs: torvalds#112 torvalds#113 torvalds#114 torvalds#115 torvalds#116 torvalds#117 torvalds#118 torvalds#119 [ 9.073006] .... node torvalds#15, CPUs: torvalds#120 torvalds#121 torvalds#122 torvalds#123 torvalds#124 torvalds#125 torvalds#126 torvalds#127 [ 9.679901] x86: Booted up 16 nodes, 128 CPUs and drop useless elements. Change num_digits() to hpa's division-avoiding, cell-phone-typed version which he went at great lengths and pains to submit on a Saturday evening. Signed-off-by: Borislav Petkov <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: Linus Torvalds <[email protected]> Cc: Andrew Morton <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>

This patch adds an additional availability check in ir_raw_event_store before adding an ir_raw_event into kfifo. The reason to do this is, Kfifo_alloc allocates fifo of size rounded down to 2. Which in this case makes sizeof ir_raw_event*MAX_IR_EVENT_SIZE = 6144 to 4096 bytes. Then again 4096 is not perfectly divisable by sizeof ir_raw_event(12). So before adding any element to kfifo checking howmany elements can be inserted into fifo is safe. This patch will make sure it inserts only sizeof(ev) into kfifo. Without this patch ir_raw_event_thread will trigger a bug. kernel BUG at drivers/media/rc/ir-raw.c:65! Internal error: Oops - undefined instruction: 0 [#1] PREEMPT SMP Modules linked in: CPU: 0 Not tainted (3.2.2_stm24_0208-b2000+ torvalds#31) PC is at ir_raw_event_thread+0xa4/0x10c LR is at ir_raw_event_thread+0xa4/0x10c pc : [<c01e0ef4>] lr : [<c01e0ef4>] psr: 60000013 sp : df1d1f78 ip : df1d0000 fp : 00000004 r10: 00000000 r9 : c041389c r8 : c0413848 r7 : df1d1f7c r6 : df1b6ecc r5 : df1b6ec0 r4 : df1d0000 r3 : 0000000c r2 : df1d1f6c r1 : c0360798 r0 : 0000002f Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 10c53c7d Table: 5ece804a DAC: 00000015 Process rc0 (pid: 577, stack limit = 0xdf1d02f0) This bug was identified as part of https://bugzilla.stlinux.com/show_bug.cgi?id=17387 triage. Signed-off-by: Srinivas Kandagatla <[email protected]> Cc: [email protected] Signed-off-by: Mauro Carvalho Chehab <[email protected]>

These changes correct the following issues with jumbo frames on the stmmac driver: 1) The Synopsys EMAC can be configured to support different FIFO sizes at core configuration time. There's no way to query the controller and know the FIFO size, so the driver needs to get this information from the device tree in order to know how to correctly handle MTU changes and setting up dma buffers. The default max-frame-size is as currently used, which is the size of a jumbo frame. 2) The driver was enabling Jumbo frames by default, but was not allocating dma buffers of sufficient size to handle the maximum possible packet size that could be received. This led to memory corruption since DMAs were occurring beyond the extent of the allocated receive buffers for certain types of network traffic. kernel BUG at net/core/skbuff.c:126! Internal error: Oops - BUG: 0 [#1] SMP ARM Modules linked in: CPU: 0 PID: 563 Comm: sockperf Not tainted 3.13.0-rc6-01523-gf7111b9 #31 task: ef35e580 ti: ef252000 task.ti: ef252000 PC is at skb_panic+0x60/0x64 LR is at skb_panic+0x60/0x64 pc : [<c03c7c3c>] lr : [<c03c7c3c>] psr: 60000113 sp : ef253c18 ip : 60000113 fp : 00000000 r10: ef3a5400 r9 : 00000ebc r8 : ef3a546c r7 : ee59f000 r6 : ee59f084 r5 : ee59ff40 r4 : ee59f140 r3 : 000003e2 r2 : 00000007 r1 : c0b9c420 r0 : 0000007d Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 2e8ac04a DAC: 00000015 Process sockperf (pid: 563, stack limit = 0xef252248) Stack: (0xef253c18 to 0xef254000) 3c00: 00000ebc ee59f000 3c20: ee59f084 ee59ff40 ee59f140 c04a9cd8 ee8c50c0 00000ebc ee59ff40 00000000 3c40: ee59f140 c02d0ef0 00000056 ef1eda80 ee8c50c0 00000ebc 22bbef29 c0318f8c 3c60: 00000056 ef3a547c ffe2c716 c02c9c90 c0ba1298 ef3a5838 ef3a5838 ef3a5400 3c80: 000020c0 ee573840 000055cb ef3f2050 c053f0e0 c0319214 22b9b085 22d92813 3ca0: 00001c80 004b8e00 ef3a5400 ee573840 ef3f2064 22d92813 ef3f2064 000055cb 3cc0: ef3f2050 c031a19c ef252000 00000000 00000000 c0561bc0 00000000 ff00ffff 3ce0: c05621c0 ef3a5400 ef3f2064 ee573840 00000020 ef3f2064 000055cb ef3f2050 3d00: c053f0e0 c031cad0 c053e740 00000e60 00000000 00000000 ee573840 ef3a5400 3d20: ef0a6e00 00000000 ef3f2064 c032507c 00010000 00000020 c0561bc0 c0561bc0 3d40: ee599850 c032799c 00000000 ee573840 c055a380 ef3a5400 00000000 ef3f2064 3d60: ef3f2050 c032799c 0101c7c0 2b6755cb c059a280 c030e4d8 000055cb ffffffff 3d80: ee574fc0 c055a380 ee574000 ee573840 00002b67 ee573840 c03fe9c4 c053fa68 3da0: c055a380 00001f6f 00000000 ee573840 c053f0e0 c0304fdc ef0a6e01 ef3f2050 3dc0: ee573858 ef031000 ee573840 c03055d8 c0ba0c40 ef000f40 00100100 c053f0dc 3de0: c053ffdc c053f0f0 00000008 00000000 ef031000 c02da948 00001140 00000000 3e00: c0563c78 ef253e5f 00000020 ee573840 00000020 c053f0f0 ef313400 ee573840 3e20: c053f0e0 00000000 00000000 c05380c0 ef313400 00001000 00000015 c02df280 3e40: ee574000 ef001e00 00000000 00001080 00000042 005cd980 ef031500 ef031500 3e60: 00000000 c02df824 ef031500 c053e390 c0541084 f00b1e00 c05925e8 c02df864 3e80: 00001f5c ef031440 c053e390 c0278524 00000002 00000000 c0b9eb48 c02df280 3ea0: ee8c7180 00000100 c0542ca8 00000015 00000040 ef031500 ef031500 ef031500 3ec0: c027803c ef252000 00000040 000000ec c05380c0 c0b9eb40 c0b9eb48 c02df940 3ee0: ef060780 ffffa4dd c0564a9c c056343c 002e80a8 00000080 ef031500 00000001 3f00: c053808c ef252000 fffec100 00000003 00000004 002e80a8 0000000c c00258f0 3f20: 002e80a8 c005e704 00000005 00000100 c05634d0 c0538080 c05333e0 00000000 3f40: 0000000a c0565580 c05380c0 ffffa4dc c05434f4 00400100 00000004 c0534cd4 3f60: 00000098 00000000 fffec100 002e80a8 00000004 002e80a8 002a20e0 c0025da8 3f80: c0534cd4 c000f020 fffec10c c053ea60 ef253fb0 c0008530 0000ffe2 b6ef67f4 3fa0: 40000010 ffffffff 00000124 c0012f3c 0000ffe2 002e80f0 0000ffe2 00004000 3fc0: becb6338 becb6334 00000004 00000124 002e80a8 00000004 002e80a8 002a20e0 3fe0: becb6300 becb62f4 002773bb b6ef67f4 40000010 ffffffff 00000000 00000000 [<c03c7c3c>] (skb_panic+0x60/0x64) from [<c02d0ef0>] (skb_put+0x4c/0x50) [<c02d0ef0>] (skb_put+0x4c/0x50) from [<c0318f8c>] (tcp_collapse+0x314/0x3ec) [<c0318f8c>] (tcp_collapse+0x314/0x3ec) from [<c0319214>] (tcp_try_rmem_schedule+0x1b0/0x3c4) [<c0319214>] (tcp_try_rmem_schedule+0x1b0/0x3c4) from [<c031a19c>] (tcp_data_queue+0x480/0xe6c) [<c031a19c>] (tcp_data_queue+0x480/0xe6c) from [<c031cad0>] (tcp_rcv_established+0x180/0x62c) [<c031cad0>] (tcp_rcv_established+0x180/0x62c) from [<c032507c>] (tcp_v4_do_rcv+0x13c/0x31c) [<c032507c>] (tcp_v4_do_rcv+0x13c/0x31c) from [<c032799c>] (tcp_v4_rcv+0x718/0x73c) [<c032799c>] (tcp_v4_rcv+0x718/0x73c) from [<c0304fdc>] (ip_local_deliver+0x98/0x274) [<c0304fdc>] (ip_local_deliver+0x98/0x274) from [<c03055d8>] (ip_rcv+0x420/0x758) [<c03055d8>] (ip_rcv+0x420/0x758) from [<c02da948>] (__netif_receive_skb_core+0x44c/0x5bc) [<c02da948>] (__netif_receive_skb_core+0x44c/0x5bc) from [<c02df280>] (netif_receive_skb+0x48/0xb4) [<c02df280>] (netif_receive_skb+0x48/0xb4) from [<c02df824>] (napi_gro_flush+0x70/0x94) [<c02df824>] (napi_gro_flush+0x70/0x94) from [<c02df864>] (napi_complete+0x1c/0x34) [<c02df864>] (napi_complete+0x1c/0x34) from [<c0278524>] (stmmac_poll+0x4e8/0x5c8) [<c0278524>] (stmmac_poll+0x4e8/0x5c8) from [<c02df940>] (net_rx_action+0xc4/0x1e4) [<c02df940>] (net_rx_action+0xc4/0x1e4) from [<c00258f0>] (__do_softirq+0x12c/0x2e8) [<c00258f0>] (__do_softirq+0x12c/0x2e8) from [<c0025da8>] (irq_exit+0x78/0xac) [<c0025da8>] (irq_exit+0x78/0xac) from [<c000f020>] (handle_IRQ+0x44/0x90) [<c000f020>] (handle_IRQ+0x44/0x90) from [<c0008530>] (gic_handle_irq+0x2c/0x5c) [<c0008530>] (gic_handle_irq+0x2c/0x5c) from [<c0012f3c>] (__irq_usr+0x3c/0x60) 3) The driver was setting the dma buffer size after allocating dma buffers, which caused a system panic when changing the MTU. BUG: Bad page state in process ifconfig pfn:2e850 page:c0b72a00 count:0 mapcount:0 mapping: (null) index:0x0 page flags: 0x200(arch_1) Modules linked in: CPU: 0 PID: 566 Comm: ifconfig Not tainted 3.13.0-rc6-01523-gf7111b9 #29 [<c001547c>] (unwind_backtrace+0x0/0xf8) from [<c00122dc>] (show_stack+0x10/0x14) [<c00122dc>] (show_stack+0x10/0x14) from [<c03c793c>] (dump_stack+0x70/0x88) [<c03c793c>] (dump_stack+0x70/0x88) from [<c00b2620>] (bad_page+0xc8/0x118) [<c00b2620>] (bad_page+0xc8/0x118) from [<c00b302c>] (get_page_from_freelist+0x744/0x870) [<c00b302c>] (get_page_from_freelist+0x744/0x870) from [<c00b40f4>] (__alloc_pages_nodemask+0x118/0x86c) [<c00b40f4>] (__alloc_pages_nodemask+0x118/0x86c) from [<c00b4858>] (__get_free_pages+0x10/0x54) [<c00b4858>] (__get_free_pages+0x10/0x54) from [<c00cba1c>] (kmalloc_order_trace+0x24/0xa0) [<c00cba1c>] (kmalloc_order_trace+0x24/0xa0) from [<c02d199c>] (__kmalloc_reserve.isra.21+0x24/0x70) [<c02d199c>] (__kmalloc_reserve.isra.21+0x24/0x70) from [<c02d240c>] (__alloc_skb+0x68/0x13c) [<c02d240c>] (__alloc_skb+0x68/0x13c) from [<c02d3930>] (__netdev_alloc_skb+0x3c/0xe8) [<c02d3930>] (__netdev_alloc_skb+0x3c/0xe8) from [<c0279378>] (stmmac_open+0x63c/0x1024) [<c0279378>] (stmmac_open+0x63c/0x1024) from [<c02e18cc>] (__dev_open+0xa0/0xfc) [<c02e18cc>] (__dev_open+0xa0/0xfc) from [<c02e1b40>] (__dev_change_flags+0x94/0x158) [<c02e1b40>] (__dev_change_flags+0x94/0x158) from [<c02e1c24>] (dev_change_flags+0x18/0x48) [<c02e1c24>] (dev_change_flags+0x18/0x48) from [<c0337bc0>] (devinet_ioctl+0x638/0x700) [<c0337bc0>] (devinet_ioctl+0x638/0x700) from [<c02c7aec>] (sock_ioctl+0x64/0x290) [<c02c7aec>] (sock_ioctl+0x64/0x290) from [<c0100890>] (do_vfs_ioctl+0x78/0x5b8) [<c0100890>] (do_vfs_ioctl+0x78/0x5b8) from [<c0100e0c>] (SyS_ioctl+0x3c/0x5c) [<c0100e0c>] (SyS_ioctl+0x3c/0x5c) from [<c000e760>] The fixes have been verified using reproducible, automated testing. Signed-off-by: Vince Bridgers <[email protected]> Signed-off-by: David S. Miller <[email protected]>

These changes correct the following issues with jumbo frames on the stmmac driver: 1) The Synopsys EMAC can be configured to support different FIFO sizes at core configuration time. There's no way to query the controller and know the FIFO size, so the driver needs to get this information from the device tree in order to know how to correctly handle MTU changes and setting up dma buffers. The default max-frame-size is as currently used, which is the size of a jumbo frame. 2) The driver was enabling Jumbo frames by default, but was not allocating dma buffers of sufficient size to handle the maximum possible packet size that could be received. This led to memory corruption since DMAs were occurring beyond the extent of the allocated receive buffers for certain types of network traffic. kernel BUG at net/core/skbuff.c:126! Internal error: Oops - BUG: 0 [#1] SMP ARM Modules linked in: CPU: 0 PID: 563 Comm: sockperf Not tainted 3.13.0-rc6-01523-gf7111b9 torvalds#31 task: ef35e580 ti: ef252000 task.ti: ef252000 PC is at skb_panic+0x60/0x64 LR is at skb_panic+0x60/0x64 pc : [<c03c7c3c>] lr : [<c03c7c3c>] psr: 60000113 sp : ef253c18 ip : 60000113 fp : 00000000 r10: ef3a5400 r9 : 00000ebc r8 : ef3a546c r7 : ee59f000 r6 : ee59f084 r5 : ee59ff40 r4 : ee59f140 r3 : 000003e2 r2 : 00000007 r1 : c0b9c420 r0 : 0000007d Flags: nZCv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 10c5387d Table: 2e8ac04a DAC: 00000015 Process sockperf (pid: 563, stack limit = 0xef252248) Stack: (0xef253c18 to 0xef254000) 3c00: 00000ebc ee59f000 3c20: ee59f084 ee59ff40 ee59f140 c04a9cd8 ee8c50c0 00000ebc ee59ff40 00000000 3c40: ee59f140 c02d0ef0 00000056 ef1eda80 ee8c50c0 00000ebc 22bbef29 c0318f8c 3c60: 00000056 ef3a547c ffe2c716 c02c9c90 c0ba1298 ef3a5838 ef3a5838 ef3a5400 3c80: 000020c0 ee573840 000055cb ef3f2050 c053f0e0 c0319214 22b9b085 22d92813 3ca0: 00001c80 004b8e00 ef3a5400 ee573840 ef3f2064 22d92813 ef3f2064 000055cb 3cc0: ef3f2050 c031a19c ef252000 00000000 00000000 c0561bc0 00000000 ff00ffff 3ce0: c05621c0 ef3a5400 ef3f2064 ee573840 00000020 ef3f2064 000055cb ef3f2050 3d00: c053f0e0 c031cad0 c053e740 00000e60 00000000 00000000 ee573840 ef3a5400 3d20: ef0a6e00 00000000 ef3f2064 c032507c 00010000 00000020 c0561bc0 c0561bc0 3d40: ee599850 c032799c 00000000 ee573840 c055a380 ef3a5400 00000000 ef3f2064 3d60: ef3f2050 c032799c 0101c7c0 2b6755cb c059a280 c030e4d8 000055cb ffffffff 3d80: ee574fc0 c055a380 ee574000 ee573840 00002b67 ee573840 c03fe9c4 c053fa68 3da0: c055a380 00001f6f 00000000 ee573840 c053f0e0 c0304fdc ef0a6e01 ef3f2050 3dc0: ee573858 ef031000 ee573840 c03055d8 c0ba0c40 ef000f40 00100100 c053f0dc 3de0: c053ffdc c053f0f0 00000008 00000000 ef031000 c02da948 00001140 00000000 3e00: c0563c78 ef253e5f 00000020 ee573840 00000020 c053f0f0 ef313400 ee573840 3e20: c053f0e0 00000000 00000000 c05380c0 ef313400 00001000 00000015 c02df280 3e40: ee574000 ef001e00 00000000 00001080 00000042 005cd980 ef031500 ef031500 3e60: 00000000 c02df824 ef031500 c053e390 c0541084 f00b1e00 c05925e8 c02df864 3e80: 00001f5c ef031440 c053e390 c0278524 00000002 00000000 c0b9eb48 c02df280 3ea0: ee8c7180 00000100 c0542ca8 00000015 00000040 ef031500 ef031500 ef031500 3ec0: c027803c ef252000 00000040 000000ec c05380c0 c0b9eb40 c0b9eb48 c02df940 3ee0: ef060780 ffffa4dd c0564a9c c056343c 002e80a8 00000080 ef031500 00000001 3f00: c053808c ef252000 fffec100 00000003 00000004 002e80a8 0000000c c00258f0 3f20: 002e80a8 c005e704 00000005 00000100 c05634d0 c0538080 c05333e0 00000000 3f40: 0000000a c0565580 c05380c0 ffffa4dc c05434f4 00400100 00000004 c0534cd4 3f60: 00000098 00000000 fffec100 002e80a8 00000004 002e80a8 002a20e0 c0025da8 3f80: c0534cd4 c000f020 fffec10c c053ea60 ef253fb0 c0008530 0000ffe2 b6ef67f4 3fa0: 40000010 ffffffff 00000124 c0012f3c 0000ffe2 002e80f0 0000ffe2 00004000 3fc0: becb6338 becb6334 00000004 00000124 002e80a8 00000004 002e80a8 002a20e0 3fe0: becb6300 becb62f4 002773bb b6ef67f4 40000010 ffffffff 00000000 00000000 [<c03c7c3c>] (skb_panic+0x60/0x64) from [<c02d0ef0>] (skb_put+0x4c/0x50) [<c02d0ef0>] (skb_put+0x4c/0x50) from [<c0318f8c>] (tcp_collapse+0x314/0x3ec) [<c0318f8c>] (tcp_collapse+0x314/0x3ec) from [<c0319214>] (tcp_try_rmem_schedule+0x1b0/0x3c4) [<c0319214>] (tcp_try_rmem_schedule+0x1b0/0x3c4) from [<c031a19c>] (tcp_data_queue+0x480/0xe6c) [<c031a19c>] (tcp_data_queue+0x480/0xe6c) from [<c031cad0>] (tcp_rcv_established+0x180/0x62c) [<c031cad0>] (tcp_rcv_established+0x180/0x62c) from [<c032507c>] (tcp_v4_do_rcv+0x13c/0x31c) [<c032507c>] (tcp_v4_do_rcv+0x13c/0x31c) from [<c032799c>] (tcp_v4_rcv+0x718/0x73c) [<c032799c>] (tcp_v4_rcv+0x718/0x73c) from [<c0304fdc>] (ip_local_deliver+0x98/0x274) [<c0304fdc>] (ip_local_deliver+0x98/0x274) from [<c03055d8>] (ip_rcv+0x420/0x758) [<c03055d8>] (ip_rcv+0x420/0x758) from [<c02da948>] (__netif_receive_skb_core+0x44c/0x5bc) [<c02da948>] (__netif_receive_skb_core+0x44c/0x5bc) from [<c02df280>] (netif_receive_skb+0x48/0xb4) [<c02df280>] (netif_receive_skb+0x48/0xb4) from [<c02df824>] (napi_gro_flush+0x70/0x94) [<c02df824>] (napi_gro_flush+0x70/0x94) from [<c02df864>] (napi_complete+0x1c/0x34) [<c02df864>] (napi_complete+0x1c/0x34) from [<c0278524>] (stmmac_poll+0x4e8/0x5c8) [<c0278524>] (stmmac_poll+0x4e8/0x5c8) from [<c02df940>] (net_rx_action+0xc4/0x1e4) [<c02df940>] (net_rx_action+0xc4/0x1e4) from [<c00258f0>] (__do_softirq+0x12c/0x2e8) [<c00258f0>] (__do_softirq+0x12c/0x2e8) from [<c0025da8>] (irq_exit+0x78/0xac) [<c0025da8>] (irq_exit+0x78/0xac) from [<c000f020>] (handle_IRQ+0x44/0x90) [<c000f020>] (handle_IRQ+0x44/0x90) from [<c0008530>] (gic_handle_irq+0x2c/0x5c) [<c0008530>] (gic_handle_irq+0x2c/0x5c) from [<c0012f3c>] (__irq_usr+0x3c/0x60) 3) The driver was setting the dma buffer size after allocating dma buffers, which caused a system panic when changing the MTU. BUG: Bad page state in process ifconfig pfn:2e850 page:c0b72a00 count:0 mapcount:0 mapping: (null) index:0x0 page flags: 0x200(arch_1) Modules linked in: CPU: 0 PID: 566 Comm: ifconfig Not tainted 3.13.0-rc6-01523-gf7111b9 torvalds#29 [<c001547c>] (unwind_backtrace+0x0/0xf8) from [<c00122dc>] (show_stack+0x10/0x14) [<c00122dc>] (show_stack+0x10/0x14) from [<c03c793c>] (dump_stack+0x70/0x88) [<c03c793c>] (dump_stack+0x70/0x88) from [<c00b2620>] (bad_page+0xc8/0x118) [<c00b2620>] (bad_page+0xc8/0x118) from [<c00b302c>] (get_page_from_freelist+0x744/0x870) [<c00b302c>] (get_page_from_freelist+0x744/0x870) from [<c00b40f4>] (__alloc_pages_nodemask+0x118/0x86c) [<c00b40f4>] (__alloc_pages_nodemask+0x118/0x86c) from [<c00b4858>] (__get_free_pages+0x10/0x54) [<c00b4858>] (__get_free_pages+0x10/0x54) from [<c00cba1c>] (kmalloc_order_trace+0x24/0xa0) [<c00cba1c>] (kmalloc_order_trace+0x24/0xa0) from [<c02d199c>] (__kmalloc_reserve.isra.21+0x24/0x70) [<c02d199c>] (__kmalloc_reserve.isra.21+0x24/0x70) from [<c02d240c>] (__alloc_skb+0x68/0x13c) [<c02d240c>] (__alloc_skb+0x68/0x13c) from [<c02d3930>] (__netdev_alloc_skb+0x3c/0xe8) [<c02d3930>] (__netdev_alloc_skb+0x3c/0xe8) from [<c0279378>] (stmmac_open+0x63c/0x1024) [<c0279378>] (stmmac_open+0x63c/0x1024) from [<c02e18cc>] (__dev_open+0xa0/0xfc) [<c02e18cc>] (__dev_open+0xa0/0xfc) from [<c02e1b40>] (__dev_change_flags+0x94/0x158) [<c02e1b40>] (__dev_change_flags+0x94/0x158) from [<c02e1c24>] (dev_change_flags+0x18/0x48) [<c02e1c24>] (dev_change_flags+0x18/0x48) from [<c0337bc0>] (devinet_ioctl+0x638/0x700) [<c0337bc0>] (devinet_ioctl+0x638/0x700) from [<c02c7aec>] (sock_ioctl+0x64/0x290) [<c02c7aec>] (sock_ioctl+0x64/0x290) from [<c0100890>] (do_vfs_ioctl+0x78/0x5b8) [<c0100890>] (do_vfs_ioctl+0x78/0x5b8) from [<c0100e0c>] (SyS_ioctl+0x3c/0x5c) [<c0100e0c>] (SyS_ioctl+0x3c/0x5c) from [<c000e760>] The fixes have been verified using reproducible, automated testing. Signed-off-by: Vince Bridgers <[email protected]> Signed-off-by: David S. Miller <[email protected]> Conflicts: drivers/net/ethernet/stmicro/stmmac/dwmac1000.h drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c drivers/net/ethernet/stmicro/stmmac/stmmac_main.c drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c include/linux/stmmac.h

Non-DT irq handlers were working through irq causes from most-significant to least-significant bit, while DT irqchip driver does it the other way round. This revealed some more HW issues on Kirkwood peripheral IP, where spurious sdio irqs can happen although irqs are masked. Also, the generated binaries show that original non-DT order compared to DT order save two instructions for each bit count check: irqchip DT order with ffs(): 60: e3a06001 mov r6, #1 64: e2643000 rsb r3, r4, #0 68: e0033004 and r3, r3, r4 6c: e16f3f13 clz r3, r3 70: e263301f rsb r3, r3, torvalds#31 74: e1c44316 bic r4, r4, r6, lsl r3 78: e5971004 ldr r1, [r7, #4] Original non-DT order with fls(): 60: e3a07001 mov r7, #1 64: e16f3f14 clz r3, r4 68: e263301f rsb r3, r3, torvalds#31 6c: e1c44317 bic r4, r4, r7, lsl r3 70: e5951004 ldr r1, [r5, #4] Therefore, reverse irq bit handling back to original order by replacing ffs() with fls(). Signed-off-by: Sebastian Hesselbarth <[email protected]> Link: https://lkml.kernel.org/r/1398719528-23607-1-git-send-email-sebastian.hesselbarth@gmail.com Acked-by: Jason Cooper <[email protected]> Signed-off-by: Jason Cooper <[email protected]>

GIT 1297af7d710acda27fb289277866e0bcd81c72c8 commit 10d4c6736ea6e6ff293dd588551270bca00ca45d Author: Petri Gynther <[email protected]> Date: Thu May 8 15:50:01 2014 -0700 Bluetooth: btusb: Add Broadcom patch RAM support After hardware reset, some BCM Bluetooth adapters obtain their initial firmware from OTPROM chip. Once this initial firmware is running, the firmware can be further upgraded over HCI interface with .hcd files provided by Broadcom. This is also known as "patch RAM" support. This change implements that. If the .hcd file is not found in /lib/firmware, BCM Bluetooth adapter continues to operate with the initial firmware. Sample kernel log: hotplug: sys=firmware act=add fw=brcm/BCM20702A0-0a5c-22be.hcd dev=... Bluetooth: hci0: BCM: patch brcm/BCM20702A0-0a5c-22be.hcd not found If the .hcd file is found, btusb driver pushes it to the BCM Bluetooth adapter and it starts using the new firmware. Sample kernel log: hotplug: sys=firmware act=add fw=brcm/BCM20702A0-0a5c-22be.hcd dev=... Bluetooth: hci0: BCM: patching hci_ver=06 hci_rev=1000 lmp_ver=06 lmp_subver=220e Bluetooth: hci0: BCM: firmware hci_ver=06 hci_rev=1389 lmp_ver=06 lmp_subver=220e Above, we can see that hci_rev goes from 1000 to 1389 as a result of the upgrade. Signed-off-by: Petri Gynther <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit 79bc7681c2880e57f07556263b862bbf383ad209 Author: Seungwon Jeon <[email protected]> Date: Fri May 9 07:02:33 2014 +0900 ARM: dts: disable MDMA1 node for exynos5420 This change places MDMA1 in disabled node for Exynos5420. If MDMA1 region is configured with secure mode, it makes the boot failure with the following on smdk5420 board. ("Unhandled fault: imprecise external abort (0x1406) at 0x00000000") Thus, arndale-octa board don't need to do the same thing anymore. Signed-off-by: Seungwon Jeon <[email protected]> Tested-by: Javi Merino <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 88072246315301323b777465f5c9b643db87aff7 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:57:35 2014 +0900 ARM: EXYNOS: Move the driver to drivers/cpuidle directory Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 5695f45e38ec1a861551f7d1cd177b5e81984b83 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:57:30 2014 +0900 ARM: EXYNOS: Cleanup all unneeded headers from cpuidle.c Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 17c643ecf1219cf8d3b375bdfdc377b9cbc372ae Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:56:29 2014 +0900 ARM: EXYNOS: Pass the AFTR callback to the platform_data No more dependency on the arch code. The platform_data field is used to set the PM callback as the other cpuidle drivers. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 7e4401689ed8c63cfb3f063107b1a07c58bb5830 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:56:24 2014 +0900 ARM: EXYNOS: Move S5P_CHECK_SLEEP into pm.c This macro is only used there. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit f75751d7a1ddf0c3ccc71e0a7117a4be823303d1 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:55:12 2014 +0900 ARM: EXYNOS: Move the power sequence call in the cpu_pm notifier The code to initiate and exit the powerdown sequence is the same in pm.c and cpuidle.c. Let's split the common part in the pm.c and reuse it from the cpu_pm notifier. That is one more step forward to make the cpuidle driver arch indenpendant. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 7ef8dd93099a531fc579648c17125d623e727262 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:53:00 2014 +0900 ARM: EXYNOS: Move the AFTR state function into pm.c In order to remove depedency on pm code, let's move the 'exynos_enter_aftr' function into the pm.c file as well as the other helper functions. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 9c63359488c69a2ab5e0077baa747a9a03eeb909 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:52:59 2014 +0900 ARM: EXYNOS: Encapsulate the AFTR code into a function Let's encapsulate the AFTR state specific call into a single function. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit d9679e49311b7138fa1cbcb20f6c8c3675cc6c1f Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:52:59 2014 +0900 ARM: EXYNOS: Disable cpuidle for exynos5440 There is no point to register the cpuidle driver for the 5440 as it has only one WFI state which is the default idle function when the cpuidle driver is disabled. By disabling cpuidle we prevent to enter to the governor computation for nothing, thus saving a lot of processing time. The only drawback is the statistic via sysfs on this state which is lost but it is meaningless and it could be retrieved from the ftrace easily. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Acked-by: Amit Kucheria <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 63f3ab27db4312c903bc268ac1f5a20a0a28119c Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:52:59 2014 +0900 ARM: EXYNOS: Encapsulate boot vector code into a function for cpuidle Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit b00ca44f02e46a638a92608f257dceeefea1d54f Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:52:59 2014 +0900 ARM: EXYNOS: Pass wakeup mask parameter to function for cpuidle Pass the wakeup mask to 'exynos_set_wakeupmask' as this function could be used for different idle states with different mask. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit ac5369f51081126692fc44ab637ed3c3681ea79a Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:53:26 2014 +0900 ARM: EXYNOS: Remove ifdef for scu_enable in pm The scu_enable function is already a noop in the scu's header file is CONFIG_SMP=n, so no need to use these macros in the code. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit efb148f681d8376122ff60d5c36aa3592d4c2c0d Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:50:16 2014 +0900 ARM: EXYNOS: Move scu_enable in the cpu_pm notifier We make the cpuidle code less arch dependent. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 5e5ee768f80860605ec66fe9e4052db82a7166c5 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:27 2014 +0900 ARM: EXYNOS: Use the cpu_pm notifier for pm Use the cpu_pm_enter/exit notifier to group some pm code inside the pm file. The save and restore code is duplicated across pm.c and cpuidle.c. By using the cpu_pm notifier, we can factor out the routine. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 04d2981f15dc93bd52a2c8431afb1456dae7c8fc Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:27 2014 +0900 ARM: EXYNOS: Fix S5P_WAKEUP_STAT call for cpuidle This function should be called only when the powerdown sequence fails. Even if the current code does not hurt, by moving this line, we have the same code than the one in pm.c. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit ff15bf49dcce85acd4220512dc30523a12e3bb81 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:27 2014 +0900 ARM: EXYNOS: Move some code inside the idle_finisher for cpuidle Move the code around to differentiate different section of code and prepare it to be factored out in the next patches. The call order changed but hat doesn't have a side effect because they are independent. The important call is cpu_do_idle() which must be done the last. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit e102ca61840e80ef6e347e81b17b2eff088290e9 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:27 2014 +0900 ARM: EXYNOS: Encapsulate register access inside a function for pm That makes the code cleaner and encapsulted. The function will be reused in the next patch. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 905e625e9411841cfc1ede8886f8df6153babd19 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:26 2014 +0900 ARM: EXYNOS: Change function name prefix for cpuidle The driver was initially written for exynos4 but the driver is used also for exynos5. Change the function prefix name exynos4 -> exynos Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit c60cdc63176588a0e715e4da3984a3ea0efc5858 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:26 2014 +0900 ARM: EXYNOS: Use cpuidle_register Use the cpuidle generic function 'cpuidle_register'. That saves us from some extra lines of code and unneeded variables. A side effect of this change is a bug fix where before the cpuidle driver was registered for each_online_cpu and now it is for each_possible_cpu. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 59b52960dac2e4d35959a459f5ef2895927e95c1 Author: Daniel Lezcano <[email protected]> Date: Fri May 9 06:43:26 2014 +0900 ARM: EXYNOS: Prevent forward declaration for cpuidle Move the structure below the 'exynos4_enter_lowpower' function so no more need of forward declaration. Signed-off-by: Daniel Lezcano <[email protected]> Reviewed-by: Viresh Kumar <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit cfbad697765dea7eb0478ae4234dd3a35cbb8f16 Author: Amit Daniel Kachhap <[email protected]> Date: Fri May 9 06:43:26 2014 +0900 ARM: EXYNOS: Move arm core power down clock to exynos5250 common clock Now with common clock support added for exynos5250 it is necessary to move this code to exynos5250 common clock driver as clock registers should be handled there. This change is tested in exynos5250 based arndale platform. Cc: Abhilash Kesavan <[email protected]> Cc: Thomas Abraham <[email protected]> Acked-by: Kukjin Kim <[email protected]> Reviewed-by: Bartlomiej Zolnierkiewicz <[email protected]> Signed-off-by: Amit Daniel Kachhap <[email protected]> [t.figa: Rebased onto current kernel sources.] Signed-off-by: Tomasz Figa <[email protected]> Signed-off-by: Daniel Lezcano <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 9c88669c2cfc91158f157b5584103ff7e5b6bedb Author: Axel Lin <[email protected]> Date: Wed Apr 9 17:21:26 2014 +0800 pwm: twl: Really disable twl6030 PWMs Current twl6030_pwm_disable() implementation writes TWL6030_TOGGLE3_REG twice, the second write sets TWL6030_PWMXEN bits so the PWM clock does not disable. Signed-off-by: Axel Lin <[email protected]> Acked-by: Peter Ujfalusi <[email protected]> Signed-off-by: Thierry Reding <[email protected]> commit 29a61d83ad2da88bbbadb554b72fdd2c3bb36c63 Author: Ivan Khoronzhuk <[email protected]> Date: Thu May 8 17:31:01 2014 -0400 ARM: dts: k2l-evm: add AEMIF/NAND device entry Add AEMIF/NAND device entry. Signed-off-by: Ivan Khoronzhuk <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 81141a027c5d0c49373e4af7d068b0ca5ad6442a Author: Rahul Sharma <[email protected]> Date: Fri May 9 06:26:44 2014 +0900 ARM: dts: add dts files for exynos5260-xyref5260 board The patch adds the dts files for xyref5260 board which is based on exynos5260 SoC. Signed-off-by: Rahul Sharma <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit af6cf11c31763c49c8f0a64e4be23fab58bb019e Author: Rahul Sharma <[email protected]> Date: Fri May 9 06:26:41 2014 +0900 ARM: dts: add dts files for exynos5260 SoC The patch adds the dts files for exynos5260. Signed-off-by: Pankaj Dubey <[email protected]> Signed-off-by: Rahul Sharma <[email protected]> Signed-off-by: Arun Kumar K <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Reviewed-by: Sachin Kamat <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 95711059c5286b320ca08ebc33966994ac26d5aa Author: Jens Axboe <[email protected]> Date: Thu May 8 15:26:30 2014 -0600 blk-mq: cleanup some leftover code from the double tagging scheme Don't need ->use_bitmap_tags anymore, and we need not print what kind of tagging type we selected. Signed-off-by: Jens Axboe <[email protected]> commit 8b144ffd7b6c8edbdc881b0a32858e1447fa441f Author: Ivan Khoronzhuk <[email protected]> Date: Thu May 8 17:19:08 2014 -0400 ARM: dts: k2e-evm: add AEMIF/NAND device entry Add AEMIF/NAND device entry. Signed-off-by: Ivan Khoronzhuk <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 4bfb5edef0cc4387d0760f5eb2d0dcfabc237b95 Author: Kyungmin Park <[email protected]> Date: Fri May 9 06:19:18 2014 +0900 ARM: EXYNOS: Support secondary CPU boot of exynos4212 This patch fix the offset of CPU boot address and change parameter of smc call of SMC_CMD_CPU1BOOT command for Exynos4212. Signed-off-by: Kyungmin Park <[email protected]> Signed-off-by: Chanwoo Choi <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit b10fd728b985ae2d18ce9bf4c2161a6eb002683c Author: Jens Axboe <[email protected]> Date: Thu May 8 15:12:07 2014 -0600 mtip32xx: convert to use blk-mq This rips out timeout handling, requeueing, etc in converting it to use blk-mq instead. Signed-off-by: Jens Axboe <[email protected]> commit 437ec65fa3c937b5f8b9c0573f60a327320937e3 Author: Jens Axboe <[email protected]> Date: Thu May 8 15:05:12 2014 -0600 blk-mq: implement new and more efficient tagging scheme blk-mq currently uses percpu_ida for tag allocation. But that only works well if the ratio between tag space and number of CPUs is sufficiently high. For most devices and systems, that is not the case. The end result if that we either only utilize the tag space partially, or we end up attempting to fully exhaust it and run into lots of lock contention with stealing between CPUs. This is not optimal. This new tagging scheme is a hybrid bitmap allocator. It uses two tricks to both be SMP friendly and allow full exhaustion of the space: 1) We cache the last allocated (or freed) tag on a per blk-mq software context basis. This allows us to limit the space we have to search. The key element here is not caching it in the shared tag structure, otherwise we end up dirtying more shared cache lines on each allocate/free operation. 2) The tag space is split into cache line sized groups, and each context will start off randomly in that space. Even up to full utilization of the space, this divides the tag users efficiently into cache line groups, avoiding dirtying the same one both between allocators and between allocator and freeer. This scheme shows drastically better behaviour, both on small tag spaces but on large ones as well. It has been tested extensively to show better performance for all the cases blk-mq cares about. Signed-off-by: Jens Axboe <[email protected]> commit 78bb0b8c61ab00fb1c61653464ab6c26e8b47558 Author: Jens Axboe <[email protected]> Date: Thu May 8 15:03:42 2014 -0600 wait: make prepare_to_wait() return if it added task to wait queue The caller can make some decisions based on whether or not the task was already on the waitqueue. blk-mq will use this for batched wakeups on tag frees. Signed-off-by: Jens Axboe <[email protected]> commit 3528dd34b2d3dc642669fd12399e18a16e3aacc8 Author: Arun Kumar K <[email protected]> Date: Fri May 9 06:06:25 2014 +0900 ARM: dts: Add exynos5420 peach-pit board support Adds the google peach-pit board dts file which uses exynos5420 SoC. Signed-off-by: Arun Kumar K <[email protected]> Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Doug Anderson <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 8e371a91d98e8d8d032c6032eb0ac6e2bbcb231f Author: Arun Kumar K <[email protected]> Date: Fri May 9 06:06:24 2014 +0900 ARM: dts: Add node labels to exynos5420 Adding labels to nodes which do not have it yet in exynos5420. This is done so as to use reference based node updation in board files. Signed-off-by: Arun Kumar K <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Reviewed-by: Doug Anderson <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit c4539e88e758901c298ee1f6c0e19471be693f54 Author: Arun Kumar K <[email protected]> Date: Fri May 9 06:06:10 2014 +0900 ARM: dts: Add pwmX_out pinctrl nodes to exynos5420 Adds the PWM nodes to 5420 pinctrl dtsi file. Signed-off-by: Arun Kumar K <[email protected]> Reviewed-by: Doug Anderson <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 4cb378646ef85e76745225912025871f3dc93ca3 Author: Sylwester Nawrocki <[email protected]> Date: Fri May 9 06:01:40 2014 +0900 ARM: dts: Add rear camera nodes for exynos4412-trats2 This patch enables the rear facing camera (s5c73m3) on TRATS2 board by adding the I2C0 bus controller, s5c73m3 sensor, MIPI CSI-2 receiver and the sensor's voltage regulator supply nodes. Signed-off-by: Andrzej Hajda <[email protected]> Acked-by: Kyungmin Park <[email protected]> Signed-off-by: Sylwester Nawrocki <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit ee5eda64af051097c00534db7c5432c4a061d355 Author: Sylwester Nawrocki <[email protected]> Date: Fri May 9 06:00:35 2014 +0900 ARM: dts: Update camera nodes for exynos4 and exynos4412-trats2 Remove unused /camera/clock-controller node and add required clock properties to the camera node. This is required for a clock provider that will be referenced by image sensor devices. Also add required clock related changes to s5k6a3 device node and afvdd regulator supply. Signed-off-by: Sylwester Nawrocki <[email protected]> Acked-by: Kyungmin Park <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 6af2ba90818f9e9c4b8711e1f896e797c5da151c Author: Tomasz Stanislawski <[email protected]> Date: Fri May 9 05:58:59 2014 +0900 ARM: dts: rename alias for i2c_ak8975 label for exynos4412-trats2 The i2c_ak8975 controller uses label i2c8. This alias is already used for I2C controller 8 defined in file arch/arm/boot/dts/exynos4.dtsi. This patch renames a label for i2c_ak8975 to i2c9. Signed-off-by: Tomasz Stanislawski <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 9c869d1f07852b47ae8578c14161ec2821682464 Author: Tomasz Stanislawski <[email protected]> Date: Fri May 9 05:55:42 2014 +0900 ARM: dts: add missing pinctrls for I2C of exynos4 This patch adds missing pinctrls for I2C controllers 2-7. Signed-off-by: Tomasz Stanislawski <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit c92ecf94d3156f79825a994e509aa070ceebae88 Author: Christoph Hellwig <[email protected]> Date: Tue May 6 12:12:45 2014 +0200 blk-mq: initialize struct request fields individually This allows us to avoid a non-atomic memset over ->atomic_flags as well as killing lots of duplicate initializations. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: Jens Axboe <[email protected]> commit face4c34519c38eda4020ab9964e5b55fcfbaa4a Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:51:43 2014 +0900 ARM: S3C24XX: remove SAMSUNG_CLOCK remnants after ccf conversion This finally removes all remaining SAMSUNG_CLOCK conditional code from s3c24xx architectures. Signed-off-by: Heiko Stuebner <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 8fb211f9c6c32e938ebbc03e6de6300156f911d7 Author: Jens Axboe <[email protected]> Date: Thu May 8 14:50:19 2014 -0600 blk-mq: update a hotplug comment for grammar Signed-off-by: Jens Axboe <[email protected]> commit 597000cf07742cd218d1c16bc7600fa2a6a884cd Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:49:36 2014 +0900 ARM: S3C24XX: remove legacy clock code With the move to the common clock framework completed for s3c2410, s3c2440 and s3c2442, the legacy clock code for these machines can go away too. This also includes the legacy dclk code, as all legacy users are converted. Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 355c9f77a6d9f41f390bb776b7e561458afbcf39 Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:49:29 2014 +0900 ARM: S3C24XX: convert s3c2410 to common clock framework Convert the machines using the s3c2410 to use the new driver based on the common clock framework instead of the legacy Samsung clock driver. As with the s3c244x, machines using the clkout output will need a fixup from someone with the hardware. Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit abe9f29b0471d1e7ff1ef4ae94bcc6b1525e15f9 Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:49:19 2014 +0900 ARM: S3C24XX: convert s3c2440 and s3c2442 to common clock framework Convert all machines using these cpus to use the ccf clock driver instead of the legacy Samsung clock implementation. Some of the more esotheric machines will probably need a fixup, as they do strange things to the clkout outputs, that I did not really understand nor have the hardware to check. Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 1a54e4342c42e01f0117c05d8bb2c9309cc435e8 Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:49:14 2014 +0900 ARM: S3C24XX: add platform code for conversion to the common clock framework This adds the necessary init functions to init the clocks from the common clock framework and necessary CONFIG_SAMSUNG_CLOCK ifdefs around the legacy clock code. This also includes empty stubs for the *_setup_clocks functions that are called from the cpufreq driver on resume. Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 6dc8f9c7783546483d0b86e18e78896c2d31ae86 Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:49:10 2014 +0900 clk: samsung: add clock controller driver for s3c2410, s3c2440 and s3c2442 This driver can handle the clock controllers of the socs mentioned above, as they share a common clock tree with only small differences. The clock structure is built according to the manuals of the included SoCs and might include changes in comparison to the previous clock structure. As pll-rate-tables only the 12mhz variants are currently included. The original code was wrongly checking for 169mhz xti values [a 0 to much at the end], so the original 16mhz pll table would have never been included and its values are so obscure that I have no possibility to at least check their sane-ness. When using the formula from the manual the resulting frequency is near the table value but still slightly off. Signed-off-by: Heiko Stuebner <[email protected]> Acked-by: Mike Turquette <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 639335c0f488b948c8946f2ba421113544905587 Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:49:05 2014 +0900 dt-bindings: add documentation for s3c2410 clock controller Describe the clock controller of s3c2410, s3c2440 and s3c2442. Signed-off-by: Heiko Stuebner <[email protected]> Acked-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 4d4cfe75853f61219b08244748d1d4f9634726db Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:48:57 2014 +0900 ARM: S3C24XX: enable usage of common dclk if common clock framework is enabled Add platform device and select the correct implementation automatically depending on wether the old samsung_clock or the common clock framework is enabled. This is only done for machines already using the old dclk implementation, as everybody else should move to use dt anyway. The machine-specific settings for the external clocks will have to be set by somebody with knowledge about the specific hardware. Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 5799ea12a41286d9588155a1abd828f43bc63d6b Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:48:51 2014 +0900 clk: samsung: add clock driver for external clock outputs This adds a driver for controlling the external clock outputs of s3c24xx architectures including the dclk muxes and dividers. The driver at the moment only supports the legacy non-dt boards using these clock outputs. The clock-output control itself is part of the system-controller mainly controlled by the pinctrl drivers. So it should most likely be integrated there for dt platforms. Signed-off-by: Heiko Stuebner <[email protected]> Acked-by: Mike Turquette <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit d8b532578f39fdec159105bc415938910351a699 Author: Heiko Stuebner <[email protected]> Date: Fri May 9 05:48:44 2014 +0900 ARM: S3C24XX: cpufreq-utils: don't write raw values to MPLLCON when using ccf The s3c24xx cpufreq driver needs to change the mpll speed and was doing this by writing raw values from a translation table into the MPLLCON register. Change this to use a regular clk_set_rate call when using the common clock framework and only write the raw value in the samsung_clock case. The s3c cpufreq driver does already aquire the mpll, so simply add a reference to struct s3c_cpufreq_config to let set_fvco access it. While struct clk is opaque the differenciation between samsung clock and common clock is kept, as the samsung-clock mpll clk does not implement a real set_rate. Signed-off-by: Heiko Stuebner <[email protected]> Acked-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 1eaade629f5c479f5f043c8c24e5daa7029b5e2e Author: Jens Axboe <[email protected]> Date: Thu May 8 14:46:27 2014 -0600 blk-mq: track software context online status seperately By separating it from the system notion of a specific CPU being online or not, we get away from problems with ordering of the CPU hotplug notifiers. Signed-off-by: Jens Axboe <[email protected]> commit 14f3791439b5a6cf12127fb80204265533d92664 Author: Santosh Shilimkar <[email protected]> Date: Mon Feb 24 17:32:59 2014 +0200 ARM: keystone: Update the dma offset for non-dt platform devices Tested-by: Grygorii Strashko <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 5eb3da7246a5b2dfac9f38a7be62b1a0295584c7 Author: Santosh Shilimkar <[email protected]> Date: Thu Jun 13 19:24:39 2013 -0400 ARM: keystone: Switch over to coherent memory address space With late code patching updates for LPAE machines has merged now and memblock conversion from bootmem is on its way, Keystone can switch to the coherent memory address space which starts beyond 4GB boundary. The idmap alias needs are managed via virt_to_idmap() for boot purpose. Tested-by: Grygorii Strashko <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 27379350a9cb6f39e136325d33b9cc9357da263e Author: Brian Norris <[email protected]> Date: Thu May 8 15:34:28 2014 -0400 ARM: configs: keystone: add MTD_SPI_NOR (new dependency for M25P80) This defconfig contains the CONFIG_M25P80 symbol, which is now dependent on the MTD_SPI_NOR symbol. Add CONFIG_MTD_SPI_NOR to satisfy the new dependency. Signed-off-by: Brian Norris <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit efdd1946c44e0d5fdf36e03176705260145d122b Author: Lad Prabhakar <[email protected]> Date: Thu May 8 15:32:46 2014 -0400 ARM: configs: keystone: drop CONFIG_COMMON_CLK_DEBUG this patch removes COMMON_CLK_DEBUG config option from defconfig file as this config option is obsolete. Signed-off-by: Lad, Prabhakar <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 86156978a398dfc92294653c49c9374aaa6e5316 Author: Santosh Shilimkar <[email protected]> Date: Mon Feb 24 16:42:19 2014 -0500 ARM: dts: keystone: Update USB node for dma properties Keystone supports dma-coherent on USB master and also needs dma-ranges to specify the hardware alias memory range in which DMA can be operational. Cc: Russell King <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Olof Johansson <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 4d46596d789d86441eeb1f02bb6d9ea10215fa5d Author: Grygorii Strashko <[email protected]> Date: Wed Feb 12 19:20:16 2014 +0200 ARM: dts: keystone: Use dma-ranges property The dma-ranges property has to be specified per bus and has format: < DMA addr > - Base DMA address for Bus (Bus format 32-bits) < CPU addr > - Corresponding base CPU address (CPU format 64-bits) < DMA range size > - Size of supported DMA range Cc: Russell King <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Olof Johansson <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Signed-off-by: Grygorii Strashko <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 509046a7b00cf540e49d3072b1efe7cb0b1bdc20 Author: Grygorii Strashko <[email protected]> Date: Mon Apr 28 15:20:22 2014 +0300 ARM: dts: keystone: add cell's information to spi nodes SPI nodes should always have #address-cells and #size-cells defined, otherwise warnings will be produced in case of adding any child nodes to the SPI bus in DT: Warning (avoid_default_addr_size): Relying on default #address-cells value for /soc/spi@21000400/n25q128a11@0 Warning (avoid_default_addr_size): Relying on default #size-cells value for /soc/spi@21000400/n25q128a11@0 Hence, ensure that all SPIx nodes have #address-cells and #size-cells properties defined. Signed-off-by: Grygorii Strashko <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit e42d8a7f966b7b3b817adece0573d07754a647d2 Author: Grygorii Strashko <[email protected]> Date: Tue Apr 8 14:46:07 2014 +0300 ARM: dts: keystone: move i2c0 device node from SoC to board files I2C devices are not the part of Keystone SoC and have to be defined in board DTS files. Hence, move i2c0 EEPROM device node from Keystone SoC to k2hk, k2e, k2l EVM files as they all have similar EEPROM SoCs installed. Signed-off-by: Grygorii Strashko <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 3953505afbb80bfcf0e9dc2ba7199e63b0fef69f Author: Grygorii Strashko <[email protected]> Date: Tue Apr 8 14:46:06 2014 +0300 ARM: dts: keystone: add cell's information to i2c nodes I2C nodes should always have #address-cells and #size-cells defined, otherwise warnings will be produced in case of adding child nodes to the I2C bus in DT: Warning (avoid_default_addr_size): Relying on default #address-cells value for /soc/i2c@2530800/pca@20 Warning (avoid_default_addr_size): Relying on default #size-cells value for /soc/i2c@2530800/pca@20 Hence, ensure that all i2cX nodes have #address-cells and #size-cells properties defined. Signed-off-by: Grygorii Strashko <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 5e014d0c020d37af897a0867bc1840f098bf3cee Author: Lucas Stach <[email protected]> Date: Mon Apr 14 16:18:13 2014 +0200 ARM: dts: keystone: drop address and size cells from GIC node This is likely a copy-and-paste error from the ARM GIC documentation, that has already been fixed. address-cells should have been set to 0, as with the size cells. As having those properties set to 0 is the same thing as not specifying them, drop them completely. Signed-off-by: Lucas Stach <[email protected]> Acked-by: Rob Herring <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 9fa1959e976f7a6ae84f616ca669359028070c61 Author: Kinglong Mee <[email protected]> Date: Tue Apr 8 13:06:28 2014 +0800 NFSD: Get rid of empty function nfs4_state_init Signed-off-by: Kinglong Mee <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> commit f3e41ec5ef0f5d2e10b6bfd3a13dc29f6d260d79 Author: Kinglong Mee <[email protected]> Date: Tue Apr 8 13:04:01 2014 +0800 NFSD: Use simple_read_from_buffer for coping data to userspace Signed-off-by: Kinglong Mee <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> commit ecca063b31b88d31ee79e9d958ea78023659554e Author: Kinglong Mee <[email protected]> Date: Tue Apr 15 17:13:56 2014 +0800 SUNRPC: Fix printk that is not only for nfsd Signed-off-by: Kinglong Mee <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> commit c5c0903b2cda930c76d296419d290137294779f2 Author: Borislav Petkov <[email protected]> Date: Thu May 8 20:37:07 2014 +0200 EDAC, MCE, AMD: Remove leftover unused mask 295d8cda2689 ("EDAC, MCE, AMD: Drop local coreid reporting") removed the code snippet which used that mask but forgot to drop the mask itself. Do that now. Signed-off-by: Borislav Petkov <[email protected]> commit 0cac6fc3eb5218fe40d1c2910abc643ab21d9f19 Author: Vinod Koul <[email protected]> Date: Mon May 5 14:27:52 2014 +0530 ASoC: Intel: rename pcm dias to media dai this is for further updates to driver which supports DPCM :) Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 6f46c0d33e76db2c820c47e9af61e0e3dba10a68 Author: Vinod Koul <[email protected]> Date: Mon May 5 14:27:51 2014 +0530 ASoC: Intel: remove unused sst-mfld platform dais With DPCM we have media dai used and no seperate headset and speaker dai so remove the speaker dai The vibra is no longer supported thru audio, so remove Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 4b68b4e1c564f32e4eb18186749b29c9a78772f4 Author: Vinod Koul <[email protected]> Date: Mon May 5 14:27:50 2014 +0530 ASoC: Intel: split the pcm and compress to different files For manging them and adding support for more platforms Code move only Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 4496ffab7dade2206f3d5dea86b9928a5f173de2 Author: Vinod Koul <[email protected]> Date: Mon May 5 14:27:49 2014 +0530 ASoC: Intel: mark sst_set_stream_status as non static as this will be used in compressed split file in subsequent patch Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit e11fd7c3ac49e2294f9562b6329ca50923e56fa7 Author: Vinod Koul <[email protected]> Date: Mon May 5 14:27:48 2014 +0530 ASoc: Intel: rename sst-mfld-platform.c to sst-mfld-platform-pcm.c so that we can split pcm and compress to different files for upcoming changes to support more platforms Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 300f53bf199f660bea3ed7afe9fd938064f19c15 Author: Vinod Koul <[email protected]> Date: Mon May 5 14:27:47 2014 +0530 ASoC: Intel: remove FSF snail mail address As this address can move Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 2b4c78df056a7231635cf629380486a074daf56b Author: Vinod Koul <[email protected]> Date: Mon May 5 22:19:25 2014 +0530 ASoC: Intel: move component registration blob to the place near it is used Signed-off-by: Vinod Koul <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 555f8a80c397b1a6ffccb294525df6ca2d721585 Author: Liam Girdwood <[email protected]> Date: Mon May 5 17:31:37 2014 +0100 ASoC: Intel: Add support to unload/reload firmware modules. Add some SST API calls to unload and reload firmware modules. This can be used by PM code to restore state and also allow modular FW to unload and release memory blocks. Signed-off-by: Liam Girdwood <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 6f1c9c57b4e0783acca9c0fe53850f24d30785a3 Author: Charles Keepax <[email protected]> Date: Thu May 8 17:17:38 2014 +0100 regulator: arizona-micsupp: Add missing #include of.h is presently being included through asm-generic/gpio.h so will not be included on some architectures, causing implicit declaration errors for of_get_child_by_name, of_parse_phandle and of_node_put. This patch adds the direct include that should be there. Reported-by: Arnd Bergmann <[email protected]> Signed-off-by: Charles Keepax <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 9f0affcf3e21fc56d8bce625bb3d5800b7a7d284 Author: Vincent Stehlé <[email protected]> Date: Tue May 6 22:23:02 2014 +0200 ARM: mvebu: Fix pmsu compilation when ARMv6 is selected When compiling for multiplatform for both ARMv6 and ARMv7, the default compiler flags are for ARMv6, and we will get: /tmp/ccwDEzd0.s: Assembler messages: /tmp/ccwDEzd0.s:639: Error: selected processor does not support ARM mode `isb ' /tmp/ccwDEzd0.s:645: Error: selected processor does not support ARM mode `isb ' /tmp/ccwDEzd0.s:646: Error: selected processor does not support ARM mode `dsb ' /tmp/ccwDEzd0.s:695: Error: selected processor does not support ARM mode `isb ' make[1]: *** [arch/arm/mach-mvebu/pmsu.o] Error 1 Fix this in a similar manner than done previously in commit 72533b77d30c2be02672e26b5dde1263d7b4c2be, by specifying ARMv7 flags for pmsu.o. Signed-off-by: Vincent Stehlé <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Cc: Jason Cooper <[email protected]> Cc: Andrew Lunn <[email protected]> Cc: Gregory Clement <[email protected]> Cc: Sebastian Hesselbarth <[email protected]> Cc: Russell King <[email protected]> Signed-off-by: Jason Cooper <[email protected]> commit 5409e46f1bcf960c651f3fff35f2f25e539655cf Author: Christoph Hellwig <[email protected]> Date: Wed May 7 13:49:44 2014 +0200 nfsd: clean up fh_auth usage Use fh_fsid when reffering to the fsid part of the filehandle. The variable length auth field envisioned in nfsfh wasn't ever implemented. Also clean up some lose ends around this and document the file handle format better. Btw, why do we even export nfsfh.h to userspace? The file handle very much is kernel private, and nothing in nfs-utils include the header either. Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> commit ecc7455d8eb1860f5aa6b9ad82a9a81f93eb11d1 Author: Kinglong Mee <[email protected]> Date: Wed May 7 23:08:04 2014 +0800 NFSD: cleanup unneeded including linux/export.h commit 4ac7249ea5a0ceef9f8269f63f33cc873c3fac61 have remove all EXPORT_SYMBOL, linux/export.h is not needed, just clean it. Signed-off-by: Kinglong Mee <[email protected]> Signed-off-by: J. Bruce Fields <[email protected]> commit aa07c713ecfc0522916f3cd57ac628ea6127c0ec Author: Kinglong Mee <[email protected]> Date: Fri Apr 18 20:49:04 2014 +0800 NFSD: Call ->set_acl with a NULL ACL structure if no entries After setting ACL for directory, I got two problems that caused by the cached zero-length default posix acl. This patch make sure nfsd4_set_nfs4_acl calls ->set_acl with a NULL ACL structure if there are no entries. Thanks for Christoph Hellwig's advice. First problem: ............ hang ........... Second problem: [ 1610.167668] ------------[ cut here ]------------ [ 1610.168320] kernel BUG at /root/nfs/linux/fs/nfsd/nfs4acl.c:239! [ 1610.168320] invalid opcode: 0000 [#1] SMP DEBUG_PAGEALLOC [ 1610.168320] Modules linked in: nfsv4(OE) nfs(OE) nfsd(OE) rpcsec_gss_krb5 fscache ip6t_rpfilter ip6t_REJECT cfg80211 xt_conntrack rfkill ebtable_nat ebtable_broute bridge stp llc ebtable_filter ebtables ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw ip6table_filter ip6_tables iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw auth_rpcgss nfs_acl snd_intel8x0 ppdev lockd snd_ac97_codec ac97_bus snd_pcm snd_timer e1000 pcspkr parport_pc snd parport serio_raw joydev i2c_piix4 sunrpc(OE) microcode soundcore i2c_core ata_generic pata_acpi [last unloaded: nfsd] [ 1610.168320] CPU: 0 PID: 27397 Comm: nfsd Tainted: G OE 3.15.0-rc1+ #15 [ 1610.168320] Hardware name: innotek GmbH VirtualBox/VirtualBox, BIOS VirtualBox 12/01/2006 [ 1610.168320] task: ffff88005ab653d0 ti: ffff88005a944000 task.ti: ffff88005a944000 [ 1610.168320] RIP: 0010:[<ffffffffa034d5ed>] [<ffffffffa034d5ed>] _posix_to_nfsv4_one+0x3cd/0x3d0 [nfsd] [ 1610.168320] RSP: 0018:ffff88005a945b00 EFLAGS: 00010293 [ 1610.168320] RAX: 0000000000000001 RBX: ffff88006700bac0 RCX: 0000000000000000 [ 1610.168320] RDX: 0000000000000000 RSI: ffff880067c83f00 RDI: ffff880068233300 [ 1610.168320] RBP: ffff88005a945b48 R08: ffffffff81c64830 R09: 0000000000000000 [ 1610.168320] R10: ffff88004ea85be0 R11: 000000000000f475 R12: ffff880068233300 [ 1610.168320] R13: 0000000000000003 R14: 0000000000000002 R15: ffff880068233300 [ 1610.168320] FS: 0000000000000000(0000) GS:ffff880077800000(0000) knlGS:0000000000000000 [ 1610.168320] CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b [ 1610.168320] CR2: 00007f5bcbd3b0b9 CR3: 0000000001c0f000 CR4: 00000000000006f0 [ 1610.168320] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 1610.168320] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 1610.168320] Stack: [ 1610.168320] ffffffff00000000 0000000b67c83500 000000076700bac0 0000000000000000 [ 1610.168320] ffff88006700bac0 ffff880068233300 ffff88005a945c08 0000000000000002 [ 1610.168320] 0000000000000000 ffff88005a945b88 ffffffffa034e2d5 000000065a945b68 [ 1610.168320] Call Trace: [ 1610.168320] [<ffffffffa034e2d5>] nfsd4_get_nfs4_acl+0x95/0x150 [nfsd] [ 1610.168320] [<ffffffffa03400d6>] nfsd4_encode_fattr+0x646/0x1e70 [nfsd] [ 1610.168320] [<ffffffff816a6e6e>] ? kmemleak_alloc+0x4e/0xb0 [ 1610.168320] [<ffffffffa0327962>] ? nfsd_setuser_and_check_port+0x52/0x80 [nfsd] [ 1610.168320] [<ffffffff812cd4bb>] ? selinux_cred_prepare+0x1b/0x30 [ 1610.168320] [<ffffffffa0341caa>] nfsd4_encode_getattr+0x5a/0x60 [nfsd] [ 1610.168320] [<ffffffffa0341e07>] nfsd4_encode_operation+0x67/0x110 [nfsd] [ 1610.168320] [<ffffffffa033844d>] nfsd4_proc_compound+0x21d/0x810 [nfsd] [ 1610.168320] [<ffffffffa0324d9b>] nfsd_dispatch+0xbb/0x200 [nfsd] [ 1610.168320] [<ffffffffa00850cd>] svc_process_common+0x46d/0x6d0 [sunrpc] [ 1610.168320] [<ffffffffa0085433>] svc_process+0x103/0x170 [sunrpc] [ 1610.168320] [<ffffffffa032472f>] nfsd+0xbf/0x130 [nfsd] [ 1610.168320] [<ffffffffa0324670>] ? nfsd_destroy+0x80/0x80 [nfsd] [ 1610.168320] [<ffffffff810a5202>] kthread+0xd2/0xf0 [ 1610.168320] [<ffffffff810a5130>] ? insert_kthread_work+0x40/0x40 [ 1610.168320] [<ffffffff816c1ebc>] ret_from_fork+0x7c/0xb0 [ 1610.168320] [<ffffffff810a5130>] ? insert_kthread_work+0x40/0x40 [ 1610.168320] Code: 78 02 e9 e7 fc ff ff 31 c0 31 d2 31 c9 66 89 45 ce 41 8b 04 24 66 89 55 d0 66 89 4d d2 48 8d 04 80 49 8d 5c 84 04 e9 37 fd ff ff <0f> 0b 90 0f 1f 44 00 00 55 8b 56 08 c7 07 00 00 00 00 8b 46 0c [ 1610.168320] RIP [<ffffffffa034d5ed>] _posix_to_nfsv4_one+0x3cd/0x3d0 [nfsd] [ 1610.168320] RSP <ffff88005a945b00> [ 1610.257313] ---[ end trace 838254e3e352285b ]--- Signed-off-by: Kinglong Mee <[email protected]> Cc: [email protected] Signed-off-by: J. Bruce Fields <[email protected]> commit 39438567179536c9f32e85d19586a11aebe1f860 Author: Thomas Petazzoni <[email protected]> Date: Mon May 5 17:05:26 2014 +0200 ARM: mvebu: conditionalize Armada 375 coherency workaround The Armada 375 coherency workaround only needs to be applied to the Z1 revision of the SoC. The A0 and later revisions have been fixed, and no longer need this workaround. Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1399302326-6917-6-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit a58d5af7d992a5e6dd8e55b3e618bd77f0368b57 Author: Thomas Petazzoni <[email protected]> Date: Mon May 5 17:05:25 2014 +0200 ARM: mvebu: conditionalize Armada 375 SMP workaround The Armada 375 SMP workaround only needs to be applied to the Z1 revision of the SoC. The A0 and later revisions have been fixed, and no longer need this workaround. Note that the initialization of the SMP workaround is delayed from ->smp_prepare_cpus() to ->smp_boot_secondary() because when ->smp_prepare_cpus() is called, the early initcalls have not be called, so the mvebu-soc-id mechanism is not operational. Since the workaround is anyway not needed before the secondary CPU is started, we can delay its implementation until the ->smp_boot_secondary() call. Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1399302326-6917-5-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit 5093dcfb422d212ccdd22450bd986a2fb03cfb9f Author: Thomas Petazzoni <[email protected]> Date: Mon May 5 17:05:24 2014 +0200 ARM: mvebu: add Armada 375 A0 revision definition Now that we have access to Armada 375 A0 platforms, we can add the corresponding revision definition in mvebu-soc-id.h. Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1399302326-6917-4-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit 73c3c79137f05de2ffcfec3469e4110e40dd1522 Author: Thomas Petazzoni <[email protected]> Date: Mon May 5 17:05:23 2014 +0200 ARM: mvebu: initialize mvebu-soc-id earlier Currently, the mvebu-soc-id logic is initialized through a core_initcall(). However, we will soon need to know the SoC revision before booting secondary CPUs, because a workaround affects Armada 375 Z1 steppings, but should not be applied on Armada 375 A0 steppings. Unfortunately, core_initcall() are called way too late compared to the SMP initialization. Therefore, the mvebu-soc-id initialization is move to an early_initcall(), which is called before the SMP initialization. Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1399302326-6917-3-git-send-email-thomas.petazzoni@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit c1a01a0360f6744c9c1735e5db7b208df819156e Author: Thomas Petazzoni <[email protected]> Date: Mon May 5 17:05:22 2014 +0200 ARM: mvebu: fix thermal quirk SoC revision check In commit 54fe26a900bc528f3df1e4235cb6b9ca5c6d4dc2 ('ARM: mvebu: Add thermal quirk for the Armada 375 DB board'), a check on the Armada SoC revision was added to decide whether a quirk for the thermal device should be applied or not. However, the quirk implementation has a bug: it assumes mvebu_get_soc_id() returns true on success, but it returns 0. Therefore, the condition: if (mvebu_get_soc_id(&dev, &rev) && rev > ARMADA_375_Z1_REV) is always false (as long as mvebu-soc-id is properly initialized). As a consequence, the quirk is always applied, even on A0 steppings, for which the quirk should not be applied. This was spotted by testing the thermal driver on Armada 375 A0, which Ezequiel could not do since he does not have access to the A0 revision of the SoC for the moment. Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1399302326-6917-2-git-send-email-thomas.petazzoni@free-electrons.com Fixes: 54fe26a900bc528f3df1e4235cb6b9ca5c6d4dc2 ('ARM: mvebu: Add thermal quirk for the Armada 375 DB board') Acked-by: Ezequiel Garcia <[email protected]> Signed-off-by: Jason Cooper <[email protected]> commit efdf811d82b8001781087fd9174bb90a9530e578 Author: Andrew Lunn <[email protected]> Date: Sat May 3 20:30:16 2014 +0200 ARM: Kirkwood: t5325: Remove platform device to instantiate audio Remove platform device instantiating of the audio, which results in board-t5325.c being removed. A DT node will be added to take its place. Signed-off-by: Andrew Lunn <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Jason Cooper <[email protected]> commit 7745b2512898e23507753513f7b5262ea1458135 Author: Andrew Lunn <[email protected]> Date: Sat May 3 20:30:12 2014 +0200 ARM: Kirkwood: Remove platform driver for codec Remove the platform driver and platform data for the audio codec. A DT node will replace it. Signed-off-by: Andrew Lunn <[email protected]> Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Jason Cooper <[email protected]> commit 5fd62066d2900b25a4fb3295ad13e3ee31474a51 Author: Ezequiel Garcia <[email protected]> Date: Thu Apr 24 17:23:22 2014 -0300 ARM: mvebu: Add thermal quirk for the Armada 375 DB board The initial release of the Armada 375 DB board has an Armada 375 Z1 stepping silicon. This commit introduces a quirk that allows to workaround a series of issues with the thermal sensor in this stepping, but updating the devicetree: * Updates the compatible string for the thermal, so the driver can perform a specific initialization of the sensor. * Moves the offset of the thermal control register. This quirk allows to specifiy the correct (A0 stepping) offset in the devicetree. Signed-off-by: Ezequiel Garcia <[email protected]> Link: https://lkml.kernel.org/r/1398371004-15807-9-git-send-email-ezequiel.garcia@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit e9d3c849a8dc92e1019a6c7ced98f6ac231a2703 Author: Ezequiel Garcia <[email protected]> Date: Thu Apr 24 08:34:36 2014 -0300 ARM: mvebu: Select HAVE_ARM_TWD only if SMP is enabled HAVE_ARM_TWD depends on SMP, so we should only select it if SMP is enabled, as the others platforms do. Signed-off-by: Ezequiel Garcia <[email protected]> Link: https://lkml.kernel.org/r/1398339276-5754-1-git-send-email-ezequiel.garcia@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit 8eee0f81cdaafb2fc78dcd5087a15c7f428d7751 Author: Gregory CLEMENT <[email protected]> Date: Sat Apr 19 18:32:50 2014 +0200 ARM: mvebu: fix the name of the parameter used in mvebu_get_soc_id The name of the two parameters of mvebu_get_soc_id were inverted. This patch fix it in order to have a more readable code. Reported-by: Ezequiel Garcia <[email protected]> Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397925170-8202-3-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit c42e1ffa269f098133629adf54cabe242596b647 Author: Gregory CLEMENT <[email protected]> Date: Sat Apr 19 18:32:49 2014 +0200 ARM: mvebu: remove unnecessary ifdef around l2x0_of_init l2x0_of_init function is always defined arch/arm/include/asm/hardware/cache-l2x0.h: in case of CONFIG_CACHE_L2X0 is not selected then a placeholder is defined. Then there is no need to have ifdef around l2x0_of_init. Signed-off-by: Gregory CLEMENT <[email protected]> Reviewed-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1397925170-8202-2-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit 8c16babc6476111efabafbb262b47f8309942403 Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:14 2014 +0200 ARM: mvebu: register the cpuidle driver for the Armada XP SoCs The cpuidle is a platform driver so we register the device just after the initialization of the board in an arch_initcall. Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-12-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit b858fbc1919720f7f54360098ece03b383e961fa Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:13 2014 +0200 cpuidle: mvebu: Add initial CPU idle support for Armada 370/XP SoC Add the wfi, cpu idle and cpu deep idle power states support for the Armada XP SoCs. All the latencies and the power consumption values used at the "armada_370_xp_idle_driver" structure are preliminary and will be modified in the future after running some measurements and analysis. Based on the work of Nadav Haklai. Signed-off-by: Nadav Haklai <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-11-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-11-git-send-email-gregory.clement@free-electrons.com Acked-by: Daniel Lezcano <[email protected]> Signed-off-by: Jason Cooper <[email protected]> commit d163ee165bd49a51f77bae632ebf37eda4899d0e Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:12 2014 +0200 ARM: mvebu: Register notifier callback for the cpuidle transition In order to have well encapsulated code, we use notifier callbacks for CPU_PM_ENTER and CPU_PM_EXIT inside the mvebu power management code. Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-10-git-send-email-gregory.clement@free-electrons.com Acked-by: Daniel Lezcano <[email protected]> Signed-off-by: Jason Cooper <[email protected]> commit 0041464ceeccd4718de228141438335e2d92f91b Author: Thomas Petazzoni <[email protected]> Date: Mon Apr 28 20:20:39 2014 +0200 ARM: mvebu: refine which files are build in mach-mvebu Following the integration into mach-mvebu of the Kirkwood ARMv5 support, we need to be more careful about which files get built. For example, the pmsu.c file now calls wfi(), which only exists on ARMv7 platforms. Therefore, this commit changes mach-mvebu/Makefile to build the Armada 370/XP/375/38x specific files only when CONFIG_MACH_MVEBU_V7 is enabled. Signed-off-by: Thomas Petazzoni <[email protected]> Link: https://lkml.kernel.org/r/1398709239-6126-1-git-send-email-thomas.petazzoni@free-electrons.com Acked-by: Gregory CLEMENT <[email protected]> Signed-off-by: Jason Cooper <[email protected]> commit c3e04cabb135625df8ff4b71ef4130f0ccbcc669 Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:11 2014 +0200 ARM: mvebu: Add the PMSU related part of the cpu idle functions The cpu idle support will need to access to Power Management Service Unit. This commit adds the architecture related functions that will be used in the idle path of the cpuidle driver. Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-9-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit f713c7e7421d6945c977c8d8813e8089f925de41 Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:10 2014 +0200 ARM: mvebu: Allow to power down L2 cache controller in idle mode This commit adds a function which adjusts the PMSU configuration to automatically power down the L2 and coherency fabric when we enter a certain idle state. This feature is part of the Power Management Service Unit of the Armada 370 and Armada XP SoCs. Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-8-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit 1a6bfbc339b6a2b59a8f88fa494fe70073cdb85a Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:09 2014 +0200 ARM: mvebu: Low level function to disable HW coherency support When going to deep idle we need to disable the SoC snooping (aka hardware coherency support). Playing with the coherency fabric requires to use assembly code to be sure that the compiler doesn't reorder the instructions nor do wrong optimization. Signed-off-by: Gregory CLEMENT <[email protected]> Link: https://lkml.kernel.org/r/1397488214-20685-7-git-send-email-gregory.clement@free-electrons.com Signed-off-by: Jason Cooper <[email protected]> commit 2e8a5942f8751c03fdd50228a02909654d13f01d Author: Gregory CLEMENT <[email protected]> Date: Mon Apr 14 17:10:08 2014 +0200 ARM: mvebu: Split low level functions to manipulate HW coherency Actually enabling coherency and adding a CPU on a SMP group are two different operations…

GIT 0856ad1ef175c45dc6a0bc629ca355fdfbb1001e commit 8b1cbef71a7e83afa78455451d59d96d4228e6a9 Author: Dan Carpenter <[email protected]> Date: Fri May 16 09:36:14 2014 +1000 These days most people use git to send patches so I have added a section about that. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit ded80c15f78fb796a7fd1d664abbef5c6f42ff97 Author: Randy Dunlap <[email protected]> Date: Fri May 16 09:36:13 2014 +1000 Note that I don't maintain Documentation/ABI/, Documentation/devicetree/, or the language translation files. Signed-off-by: Randy Dunlap <[email protected]> commit eafaebd987fcd001e2c123c050939a29c625d673 Author: Sebastian Reichel <[email protected]> Date: Fri Mar 28 20:19:44 2014 +0100 HSI: Introduce Nokia N900 modem driver The Nokia N900's modem is connected via Synchronous Serial Interface (SSI), which is a legacy version of MIPI's High-speed Synchronous Serial Interface (HSI). The handles the GPIOs for enabling and resetting the modem and instanciates ssi-protocol for data exchange. It does not yet support exchanging voice data with the modem. Signed-off-by: Sebastian Reichel <[email protected]> Reviewed-by: Pavel Machek <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit dc7bf5d7186849aa36b9f0e42e250a813a7b0bdb Author: Sebastian Reichel <[email protected]> Date: Fri Nov 15 10:50:32 2013 +0000 HSI: Introduce driver for SSI Protocol This adds a driver for the SSI McSAAB protocol as used in the Nokia N900. Signed-off-by: Carlos Chinea <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit dc9df3154c082873591acf95036632e97215212e Author: Sebastian Reichel <[email protected]> Date: Sun Dec 15 23:43:10 2013 +0100 Documentation: DT: omap-ssi binding documentation Create device tree binding documentation for OMAP Synchronous Serial Interface (SSI) device. Signed-off-by: Sebastian Reichel <[email protected]> Reviewed-by: Pavel Machek <[email protected]> commit b209e047bc743247f74ce79e8827ae1ed556bae0 Author: Sebastian Reichel <[email protected]> Date: Sun Dec 15 23:38:58 2013 +0100 HSI: Introduce OMAP SSI driver Add OMAP SSI driver to the HSI subsystem. The Synchronous Serial Interface (SSI) is a legacy version of HSI. As in the case of HSI, it is mainly used to connect Application engines (APE) with cellular modem engines (CMT) in cellular handsets. It provides a multichannel, full-duplex, multi-core communication with no reference clock. The OMAP SSI block is capable of reaching speeds of 110 Mbit/s. Signed-off-by: Carlos Chinea <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit a2aa24734d9dbbd3b9062c2459936c336278fa6a Author: Sebastian Reichel <[email protected]> Date: Fri Mar 28 22:59:43 2014 +0100 HSI: Add common DT binding for HSI client devices Implement and document generic DT bindings for HSI clients. Signed-off-by: Sebastian Reichel <[email protected]> Reviewed-by: Pavel Machek <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit 8491451024bcfabdcebd772ce9ec2fc5757acd42 Author: Sebastian Reichel <[email protected]> Date: Fri Mar 28 22:54:25 2014 +0100 HSI: export method to (un)register clients Expose method for registering and unregistering HSI clients, so that client drivers can register other client drivers. This is useful for HSI drivers, which want to use the functionality of other HSI drivers. For example the N900 modem driver can load HSI drivers for mcsaab protocol and speech protocol. Signed-off-by: Sebastian Reichel <[email protected]> Reviewed-by: Pavel Machek <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit a088cf161cc87b39e83c7c53b9f239773422d212 Author: Sebastian Reichel <[email protected]> Date: Fri Mar 28 22:48:23 2014 +0100 HSI: Add channel resource support to HSI clients Make HSI channel ids platform data, which can be provided by platform data. Signed-off-by: Sebastian Reichel <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit a0bf37edb4d34c21bdaa19a1624378924b917491 Author: Sebastian Reichel <[email protected]> Date: Sun Oct 6 20:23:49 2013 +0200 HSI: method to unregister clients from an hsi port This exports a method to unregister all clients from an hsi port. Signed-off-by: Sebastian Reichel <[email protected]> Reviewed-by: Pavel Machek <[email protected]> Tested-By: Ivaylo Dimitrov <[email protected]> commit ba8f073281fe0b6d50332bf005dd023ecf51efa9 Author: Fabio Falzoi <[email protected]> Date: Tue Apr 22 23:23:04 2014 +0200 Staging: rts5139: More appropriate use of sizeof operand Use the pointer rts51x to get the size of the struct. Signed-off-by: Fabio Falzoi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit c606525d76d16702de1b40fcf017e63f31c270c1 Author: Fabio Falzoi <[email protected]> Date: Tue Apr 22 23:23:03 2014 +0200 Staging: rts5139: Removed OOM messages All allocation Out Of Memory messages removed. We rely on the generic OOM message in dump_stack(). Signed-off-by: Fabio Falzoi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 4b3ef391c320b112d140f991dbde5da9c651a690 Author: Fabio Falzoi <[email protected]> Date: Tue Apr 22 23:23:02 2014 +0200 Staging: rts5139: Use standard pr_<level> prefixing Define pr_fmt macro to prefix every pr_<level> function in standard way. Signed-off-by: Fabio Falzoi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 7cb61930110358a62b6ef0564707ba9e201a535e Author: Fabio Falzoi <[email protected]> Date: Tue Apr 22 23:23:01 2014 +0200 Staging: rts5139: Splitted one-line multiple assignment Splitted a multiple assignment on two separate lines. Signed-off-by: Fabio Falzoi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 307a433e3d3072df727aba851595eac328d1ab4d Author: Fabio Falzoi <[email protected]> Date: Tue Apr 22 23:23:00 2014 +0200 Staging: rts5139: Fixed multi-line code alignment Multi-line code aligned with open parenthesis. Signed-off-by: Fabio Falzoi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit fd09d1de70480e0534eb57b0c8eb19ffbdab1d95 Author: Fabio Falzoi <[email protected]> Date: Tue Apr 22 23:22:59 2014 +0200 Staging: rts5139: Camel case labels replaced Replace camel case labels with linux coding style compliant names. Signed-off-by: Fabio Falzoi <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 2787b99fd62f01af33bea5a076b665e128c67177 Author: Camille Bordignon <[email protected]> Date: Sun Apr 6 18:21:27 2014 +0200 staging: sep: Fix coding style Fix coding style warning "Missing a blank line after declarations" Signed-off-by: Camille Bordignon <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 3136b5fee2be0c177b381b62aa5da8dd8eb3ef94 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:24 2014 +0100 staging: vt6656: Remove PIPEnsControlOutAsyn/CONTROLnsRequestOutAsyn This now the same as PIPEnsControlOut. Replace with PIPEnsControlOut/CONTROLnsRequestOut. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 0fb2af353f11ea939b29c8cf07ce70a3882824cc Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:23 2014 +0100 staging: vt6656: PIPEnsControlIn use usb_control_msg Now that this function is nolonger atomic useusb_control_msg. Return STATUS_FAILURE if ntStatus less than wLength Remove the old struct urb and struct usb_ctrlrequest structures. Remove fMP_CONTROL_READS flag. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 7021b684eb1efa9a349785f919e177c1b63af313 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:22 2014 +0100 staging: vt6656: usbpipe.c PIPEnsControlOut use usb_control_msg Now that this fucntion is nolonger atomic change to usb_control_msg Return STATUS_FAILURE if ntStatus less than wLength. Remove fMP_CONTROL_WRITES flag Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 3c647642f6658c693d090b12c1b5bf901f3b7440 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:21 2014 +0100 staging: vt6656: lock changes device_xmit Replace locks with the spin_lock_irqsave and spin_unlock_irqrestore Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 29b02373f44d0d873a4f645b53c3cddce2f40f7b Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:20 2014 +0100 staging: vt6656: lock changes: s_nsBulkInUsbIoCompleteRead. Use spin_lock_irqsave/spin_unlock_irqrestore Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit c91b1869fb6f6d58f6321b8a88bd39577b0413a7 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:19 2014 +0100 staging: vt6656: lock changes: usbpipe.c add mutex lock. PIPEnsControlOut and PIPEnsControlIn are nolonger atomic but they do need a usb lock. Add new mutex lock for these functions and PIPEnsControlOutAsyn. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 97641ca2b284ddc9870afdcfe22487702ee27b3e Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:18 2014 +0100 staging: vt6656: lock changes: vRunCommand nsDMA_tx_packet vRunCommand is nolonger atomic add lock for nsDMA_tx_packet. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 8783a1a4afa4e14cf134afc7838b23fcd745b996 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:17 2014 +0100 staging: vt6656: lock changes: bMgrPrepareBeaconToSend add lock. bMgrPrepareBeaconToSend is nolonger atomic csBeacon_xmit must be locked add spin lock. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 3bc552a1a0757d97cdbb04227536c101848b6a94 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:16 2014 +0100 staging: vt6656: lock changes: vDMA0_tx_80211 vDMA0_tx_80211 is atomically called. RFbSetPower can not be called atomically. If wCurrentRate is different to pDevice->wCurrentRate call bScheduleCommand WLAN_CMD_SETPOWER. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 931cb9ff6eefb5c0e92c1b170ba68f5453aab32f Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:15 2014 +0100 staging: vt6656: lock changes: csMgmt_xmit. csMgmt_xmit is nolonger atomically called but part of must be. Reorder the function so that RFbSetPower is called first. Add new lock spinlock for the remainder of the function. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit e03ce8393e41ddff574c95ac72378ed1f02cef54 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:14 2014 +0100 staging: vt6656: lock changes: RXvMngWorkItem. Narrow atomic locks in RXvMngWorkItem. We must lock the DequeueRCB and RXvFreeRCB so that they are in sync. vMgrRxManagePacket can nolonger be atomically called. There is no need for an overall lock. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit d1d4120f7fab69b32d40780b766109d377d743a7 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:13 2014 +0100 staging: vt6656: lock changes: vRunCommand remove locks. Removing atomic locked paths to usbpipe.c PIPEnsControlOut and PIPEnsControlIn This function will nolonger need any locking. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 7af94000fecf67ebea144a2a0427bdb6a795f890 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:12 2014 +0100 staging: vt6656: lock changes: Remove spin locks. Remove atomic paths to usbpipe.c PIPEnsControlOut and PIPEnsControlIn Remove from PIPEnsControlOut PIPEnsControlIn BSSvSecondCallBack vt6656_hostap_ioctl iwctl_siwmode iwctl_siwencode iwctl_siwpower iwctl_siwencodeext KeyvInitTable device_init_registers device_open device_close Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 30a05b397ce410685532120e97c6cc378dd31a1f Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:11 2014 +0100 staging: vt6656: struct vnt_usb_send_context remove camel case. Camel case changes pDevice -> priv pPacket -> skb pUrb -> urb uBufLen -> buf_len; bBoolInUse -> in_use Data -> data Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit b674ee142296b84ea8514da52e9185dab4070b72 Author: Malcolm Priestley <[email protected]> Date: Thu May 15 22:49:10 2014 +0100 staging: vt6656: nsDMA_tx_packet Move pContext later. call s_vGetFreeContext later in function skiping large chunk of code. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit ccc3a5986daefdf0aef76f3664ac6848e3d9515e Author: Denis Pithon <[email protected]> Date: Mon May 12 17:22:46 2014 +0200 staging/wlan-ng: code refactoring Extract new static function from p80211netdev_rx_bh() to fix coding style issue (too many leading tabs). Signed-off-by: Denis Pithon <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 05d39beeb865940852f469f1ce067cc7fa607a72 Author: Denis Pithon <[email protected]> Date: Mon May 12 17:22:45 2014 +0200 staging/wlan-ng: remove function declaration Removed useless function prototype: static function p80211netdev_rx_bh() is defined before being used. Signed-off-by: Denis Pithon <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 67c4ded5a3cfc666f149f2dee3ad5ae2f06f1736 Author: Denis Pithon <[email protected]> Date: Mon May 12 17:22:44 2014 +0200 staging/wlan-ng: update function header comment Header comment of p80211netdev_rx_bh() does not match function prototype. Fixed. Signed-off-by: Denis Pithon <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 8cf22fda6272e5240a118f003d9222da5489af38 Author: Neil Armstrong <[email protected]> Date: Fri Apr 11 15:00:49 2014 +0200 staging: wlan-ng: fix bad symbol declaration With sparse, the following error appears : CHECK drivers/staging/wlan-ng/p80211netdev.c drivers/staging/wlan-ng/cfg80211.c:710:6: warning: symbol 'prism2_connect_result' was not declared. Should it be static? drivers/staging/wlan-ng/cfg80211.c:719:6: warning: symbol 'prism2_disconnected' was not declared. Should it be static? drivers/staging/wlan-ng/cfg80211.c:725:6: warning: symbol 'prism2_roamed' was not declared. Should it be static? Move functions declaration to coherent internal header file. Signed-off-by: Neil 'Superna' Armstrong <[email protected]> Reviewed-by: Josh Triplett <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 5d85fe346fc34e1d5932974a95440297cd7a009f Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:35:15 2014 +0200 driver: staging: wlan-ng: Removed unnecessary spaces after cast from hfa384x_usb.c Fixed: No space is necessary after a cast Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 638f81b849a306e4a897f99f51e22ba515338e21 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:35:06 2014 +0200 driver: staging: wlan-ng: Removed #if 0 lines from hfa384x_usb.c Removed lines that were ignored by #if 0 Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 96b1971ace70c563048d341bfc1bd55754b95183 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:34:56 2014 +0200 driver: staging: wlan-ng: Removed multiple assignments Removed multiple assignments from hfa384x_usb.c Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit a3542e664bb10c10c52088efc460371225a939b0 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:34:48 2014 +0200 driver: staging: wlan-ng: Fixed white spaces issues In hfa384x_usb.c: Moved Logical continuations to the correct lines Removed unnecessary blank lines Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 3f2d656481c64bad30f1f92b3834c6c2b5851916 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:34:40 2014 +0200 driver: staging: wlan-ng: Fixed Alignment to match open parenthesis Fixed Alignment to match open parenthesis in hfa384x_usb.c Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 83f91687b0922511eceddb9831e9f86c08bb3873 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:34:12 2014 +0200 driver: staging: wlan-ng: Removed Unnecessary space after function pointer name Removed Unnecessary space after function pointer name Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit d6ae4a9995fa19ecde23f425a027f445074ba1ec Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:34:01 2014 +0200 driver: staging: wlan-ng: Setting character pointers as const changed declaration of ctlx_str to: static const char * const ctlx_str[] Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit baa8a6c008329de5dd6909658c7f892340e4b5f0 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:33:53 2014 +0200 driver: staging: wlan-ng: switched to pr_warn changed printk(KERN_WARNING .. to pr_warn Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit a03742ac96fceac7b103aff7b9714605a21b8a3e Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:33:45 2014 +0200 driver: staging: wlan-ng: Removed unnecessary typedefs from hfa384x_usb.c Removed unnecessary typedefs from hfa384x_usb.c Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit a21201369568a4e5bd23fb5cb9a966a1008637a6 Author: Sherif Shehab Aldin <[email protected]> Date: Sat Apr 5 23:33:16 2014 +0200 driver: staging: wlan-ng: Fixed Breaking long lines and strings style rule Fixed coding style rule "Breaking long lines and strings" for hfa384x_usb.c Signed-off-by: Sherif Shehab Aldin <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 1b2a9d3fd4fec79876349ffdda088651af7b2119 Author: Vivek Gautam <[email protected]> Date: Fri May 16 06:38:15 2014 +0900 ARM: dts: Update DWC3 usb controller to use new phy driver for exynos5250 Removing the dt node for older usb3 phy driver from Exynos5250 device tree and updating the dt node for DWC3 controller to use new phy driver based on generic phy framework. Signed-off-by: Vivek Gautam <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit dd47964d780a96ae3957f6c4d1243bf5d39a4118 Author: Vivek Gautam <[email protected]> Date: Fri May 16 06:38:10 2014 +0900 ARM: dts: Enable support for generic USB DRD phy for exynos5250 Add device tree node for new usbdrd-phy driver, which is based on generic phy framework. Signed-off-by: Vivek Gautam <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit bf963efe024e04d90396a6464bb179c68b2edbcb Author: Vivek Gautam <[email protected]> Date: Fri May 16 06:38:01 2014 +0900 ARM: dts: Enable support for DWC3 controller for exynos5420 Add device tree nodes for DWC3 controller present on Exynos 5420 SoC, to enable support for USB 3.0. Signed-off-by: Vivek Gautam <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit d102e35f1cd364466ea848791a12a1229d4a9c39 Author: Vivek Gautam <[email protected]> Date: Fri May 16 06:37:03 2014 +0900 ARM: dts: Enable support for USB 3.0 PHY controller for exynos5420 Add device tree nodes for USB 3.0 PHY present alongwith USB 3.0 controller Exynos 5420 SoC. This phy driver is based on generic phy framework. Signed-off-by: Vivek Gautam <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit b7bb243924e9284f605368e22c3aa4ca3c980d81 Author: Mika Kuoppala <[email protected]> Date: Thu May 15 20:58:11 2014 +0300 drm/i915: Enable rc6 with bdw Everything should be in place so enable rc6/rps for bdw. Reviewed-by: Ville Syrjälä <[email protected]> Signed-off-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 8fd9c1a9d7f490c9f530b7a6108322b6789e02c4 Author: Mika Kuoppala <[email protected]> Date: Thu May 15 20:58:10 2014 +0300 drm/i915: Fix rc6 options debug info by correctly displaying result and requested. Suggested-by: Imre Deak <[email protected]> Reviewed-by: Ville Syrjälä <[email protected]> Signed-off-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit baccd4586ed948569207de83f28772376d5c3772 Author: Deepak S <[email protected]> Date: Thu May 15 20:58:09 2014 +0300 drm/i915: Enable PM Interrupts target via Display Interface. In BDW, Apart from unmasking up/down threshold interrupts. we need to umask bit 32 of PM_INTRMASK to route interrupts to target via Display Interface. v2: Add (1<<31) mask (Ville) v3: Add Gen check for the mask (ville) Reviewed-by: Ville Syrjälä <[email protected]> Signed-off-by: Deepak S <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 0961021aef788e9d0d4e34256655d6c761ef716b Author: Ben Widawsky <[email protected]> Date: Thu May 15 20:58:08 2014 +0300 drm/i915/bdw: Implement a basic PM interrupt handler Almost all of it is reusable from the existing code. The primary difference is we need to do even less in the interrupt handler, since interrupts are not shared in the same way. The patch is mostly a copy-paste of the existing snb+ code, with updates to the relevant parts requiring changes to the interrupt handling. As such it /should/ be relatively trivial. It's highly likely that I missed some places where I need a gen8 version of the PM interrupts, but it has become invisible to me by now. This patch could probably be split into adding the new functions, followed by actually handling the interrupts. Since the code is currently disabled (and broken) I think the patch stands better by itself. v2: Move the commit about not touching the ringbuffer interrupt to the snb_* function where it belongs (Rodrigo) v3: Rebased on Paulo's runtime PM changes v4: Not well validated, but rebase on commit 730488b2eddded4497f63f70867b1256cd9e117c Author: Paulo Zanoni <[email protected]> Date: Fri Mar 7 20:12:32 2014 -0300 drm/i915: kill dev_priv->pm.regsave v5: Rebased on latest code base. (Deepak) v6: Remove conflict markers, Unnecessary empty line and use right IIR interrupt (Ville) v7: mask modified without rmw (Ville Syrjälä) Reviewed-by: Ville Syrjälä <[email protected]> Signed-off-by: Ben Widawsky <[email protected]> Signed-off-by: Deepak S <[email protected]> Signed-off-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 6e450ab24dc645d776e65bbb91fc5f6788087c32 Author: Mika Kuoppala <[email protected]> Date: Thu May 15 20:58:07 2014 +0300 drm/i915: Bail out early on gen6_signal if no semaphores If we dont have semaphores enabled, we allocate 4 dwords for signalling. But end up emitting more regardless. Fix this by bailing out early if semaphores are not enabled. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78274 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=78283 Signed-off-by: Mika Kuoppala <[email protected]> Reviewed-by: Ville Syrjälä <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 47dd0b76ace953bd2c0479076db0d3e3b9594003 Author: Dave Jones <[email protected]> Date: Thu May 15 15:03:53 2014 -0400 selinux: conditionally reschedule in hashtab_insert while loading selinux policy After silencing the sleeping warning in mls_convert_context() I started seeing similar traces from hashtab_insert. Do a cond_resched there too. Signed-off-by: Dave Jones <[email protected]> Acked-by: Stephen Smalley <[email protected]> Signed-off-by: Paul Moore <[email protected]> commit 612c353178c45250fbec271e7e8e75596d5cbbea Author: Dave Jones <[email protected]> Date: Thu May 15 15:02:53 2014 -0400 selinux: conditionally reschedule in mls_convert_context while loading selinux policy On a slow machine (with debugging enabled), upgrading selinux policy may take a considerable amount of time. Long enough that the softlockup detector gets triggered. The backtrace looks like this.. > BUG: soft lockup - CPU#2 stuck for 23s! [load_policy:19045] > Call Trace: > [<ffffffff81221ddf>] symcmp+0xf/0x20 > [<ffffffff81221c27>] hashtab_search+0x47/0x80 > [<ffffffff8122e96c>] mls_convert_context+0xdc/0x1c0 > [<ffffffff812294e8>] convert_context+0x378/0x460 > [<ffffffff81229170>] ? security_context_to_sid_core+0x240/0x240 > [<ffffffff812221b5>] sidtab_map+0x45/0x80 > [<ffffffff8122bb9f>] security_load_policy+0x3ff/0x580 > [<ffffffff810788a8>] ? sched_clock_cpu+0xa8/0x100 > [<ffffffff810786dd>] ? sched_clock_local+0x1d/0x80 > [<ffffffff810788a8>] ? sched_clock_cpu+0xa8/0x100 > [<ffffffff8103096a>] ? __change_page_attr_set_clr+0x82a/0xa50 > [<ffffffff810786dd>] ? sched_clock_local+0x1d/0x80 > [<ffffffff810788a8>] ? sched_clock_cpu+0xa8/0x100 > [<ffffffff8103096a>] ? __change_page_attr_set_clr+0x82a/0xa50 > [<ffffffff810788a8>] ? sched_clock_cpu+0xa8/0x100 > [<ffffffff81534ddc>] ? retint_restore_args+0xe/0xe > [<ffffffff8109c82d>] ? trace_hardirqs_on_caller+0xfd/0x1c0 > [<ffffffff81279a2e>] ? trace_hardirqs_on_thunk+0x3a/0x3f > [<ffffffff810d28a8>] ? rcu_irq_exit+0x68/0xb0 > [<ffffffff81534ddc>] ? retint_restore_args+0xe/0xe > [<ffffffff8121e947>] sel_write_load+0xa7/0x770 > [<ffffffff81139633>] ? vfs_write+0x1c3/0x200 > [<ffffffff81210e8e>] ? security_file_permission+0x1e/0xa0 > [<ffffffff8113952b>] vfs_write+0xbb/0x200 > [<ffffffff811581c7>] ? fget_light+0x397/0x4b0 > [<ffffffff81139c27>] SyS_write+0x47/0xa0 > [<ffffffff8153bde4>] tracesys+0xdd/0xe2 Stephen Smalley suggested: > Maybe put a cond_resched() within the ebitmap_for_each_positive_bit() > loop in mls_convert_context()? That seems to do the trick. Tested by downgrading and re-upgrading selinux-policy-targeted. Signed-off-by: Dave Jones <[email protected]> Acked-by: Stephen Smalley <[email protected]> Signed-off-by: Paul Moore <[email protected]> commit bf2ec0f9ada1db6778851fcc9f736b5ca00c97ec Author: Micky Ching <[email protected]> Date: Wed Apr 2 17:58:52 2014 +0800 staging: rts5208: fix static checker warnings The patch fa590c222fba: "staging: rts5208: add support for rts5208 and rts5288" from Nov 12, 2013, leads to the following static checker warning: drivers/staging/rts5208/rtsx_chip.c:107 rtsx_enable_bus_int() warn: add curly braces? This warning is produced because incorrect code indent. Signed-off-by: Micky Ching <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 5535c4dd475ff936d36ad4d3f85d8be74f30245f Author: Rocco Folino <[email protected]> Date: Thu Apr 3 00:47:46 2014 +0200 staging: gs_fpgaboot: Fixed code style issues Fixed missing a blank line after declarations warning Signed-off-by: Rocco Folino <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit f3c5261e04b9ace521e9392f7b6a28f62b28b9fc Author: Jerry Snitselaar <[email protected]> Date: Thu Apr 24 00:31:48 2014 -0700 staging/line6: blank line after declaration cleanup Fix coding style warnings reported by checkpath. Signed-off-by: Jerry Snitselaar <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 62ca89a1d014623b1a59aa60b6055d022f1f8836 Author: Artem Fetishev <[email protected]> Date: Sun May 11 21:14:30 2014 +0300 drivers: staging: ft1000: Fix lines over 80 characters ..plus some function arg indentation which I haven't noticed at first. Signed-off-by: Artem Fetishev <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 48d1e475363638b58f76ee0bd3887082990ea0f9 Author: Artem Fetishev <[email protected]> Date: Sun May 11 21:14:29 2014 +0300 drivers: staging: ft1000: Remove typedefs Remove typedefs according to the "Chapter 5: Typedefs" from Documentation/CodingStyle. Signed-off-by: Artem Fetishev <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 5df466cd66159826276f7b807a7e729f6a40c09d Author: Artem Fetishev <[email protected]> Date: Sun May 11 21:14:28 2014 +0300 drivers: staging: ft1000: Use pr_info instead of printk Improve coding style by fixing this checkstyle warning: WARNING: Prefer [subsystem eg: netdev]_info([subsystem]dev, ... then dev_info(dev, ... then pr_info(... to printk(KERN_INFO ... Signed-off-by: Artem Fetishev <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit b4da658ea91f8813f3eee8f40c82a7937449a741 Author: Artem Fetishev <[email protected]> Date: Sun May 11 21:14:27 2014 +0300 drivers: staging: ft1000: Fix IOCTL_FT1000_* marcos Fixes include: - Add closing brackets; - Remove sizeof (_IOR and _IOW macro can accept types); - Replace _IOW which size of 0 (the last arg) with _IO. - Actually these macros are not used anywhere and might be removed. Signed-off-by: Artem Fetishev <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 5fd29b013b0df6bcb411c54f21a2661c142a118e Author: Artem Fetishev <[email protected]> Date: Sun May 11 21:14:26 2014 +0300 drivers: staging: ft1000: Fix indentation Fixes indentation in header files. Signed-off-by: Artem Fetishev <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit dab531b4305bc2852ce6f934dc283464d46871a5 Author: Florian Fainelli <[email protected]> Date: Wed May 14 19:32:14 2014 -0700 net: systemport: pad packets to a minimum of 68 bytes Packets need to be at least 64 bytes to enter the switch port logic, including the FCS, otherwise they will be discarded as RUNT packets. With packets having Broadcom tags, the 4-bytes tag is first stripped off the packet, and the packet length is then checked, so we need to make sure that the packet length with FCS is at least 64 bytes. Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit d5e32cc7c997d1d4f18031f5ff88512bd65118f7 Author: Florian Fainelli <[email protected]> Date: Wed May 14 19:32:13 2014 -0700 net: systemport: only update UMAC_CMD if something changed The link adjustment callback can be called as frequently as desired by the PHY library, as such, let's avoid doing a Read/Modify/Write sequence if nothing changed, which is more than likely since we are interfaced with a switch device. Signed-off-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 77a6f000a1a22d295b87a1a767ffe75b98f1775f Author: Angus Gibson <[email protected]> Date: Mon Apr 7 12:29:30 2014 +1000 staging: ft1000: remove explicit static initialisation Fix checkpatch.pl error where a static variable was explicitly initialised to false Signed-off-by: Angus Gibson <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 248b6a67567778123bf635945659e64cfe272e3b Author: Paul McQuade <[email protected]> Date: Thu Apr 3 17:21:22 2014 +0100 Staging:ft1000_debug.c:Renaming __FUNCTION__ __Function__ gets renamed with __func__ Signed-off-by: Paul McQuade <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit a713cd594117c6841dbd56b608fa8629673f6617 Author: Anders Darander <[email protected]> Date: Tue Apr 1 08:29:40 2014 +0200 Staging: ft1000-usb: use netdev_warn Fix coding style issue by replacing printk with netdev_warn. Signed-off-by: Anders Darander <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 87a76301091f8ff0c24e31c8befc6a4f699536f1 Author: Anders Darander <[email protected]> Date: Tue Apr 1 08:29:39 2014 +0200 Staging: ft1000-usb: wrap macros in do while Fix coding style issue by wrapping the macro in a do {} while (0). Signed-off-by: Anders Darander <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit d91e5c02555ae838e9d783b9e83e125fd10dca73 Author: Vince Bridgers <[email protected]> Date: Wed May 14 14:38:37 2014 -0500 Altera TSE: Disable Multicast filtering to workaround problem This patch disables multicast hash filtering if present in the hardware and uses promiscuous mode instead until the problem with multicast filtering has been debugged, integrated and tested. Signed-off-by: Vince Bridgers <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 898305806ad56ae11dc2c80931062e6a2c7bba48 Author: Vince Bridgers <[email protected]> Date: Wed May 14 14:38:36 2014 -0500 Altera TSE: Fix sparse errors and warnings This patch fixes the many sparse errors and warnings contained in the initial submission of the Altera Triple Speed Ethernet driver, and a few minor cppcheck warnings. Changes are tested on ARM and NIOS2 example designs, and compile tested against multiple architectures. Typical issues addressed were as follows: altera_tse_ethtool.c:136:19: warning: incorrect type in argument 1 (different address spaces) altera_tse_ethtool.c:136:19: expected void const volatile [noderef] <asn:2>*addr altera_tse_ethtool.c:136:19: got unsigned int *<noident> ... altera_sgdma.c:129:31: warning: cast removes address space of expression Signed-off-by: Vince Bridgers <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit c80561e96b81a01c3e4988fc08093479a1f0c914 Author: Dan Carpenter <[email protected]> Date: Wed May 14 19:13:07 2014 +0300 staging: dgnc: UART_IIR_XOFF code is buggy The UART_IIR_XOFF was supposed to be a no-op but, because there was a missing semi-colon, the if statement is not "Empty". I have just deleted this code because it was supposed to be a no-op anyway. UART_IIR_XOFF is a standard define and not something specific to this driver. Signed-off-by: Dan Carpenter <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 0f33ae1ed6ac39da7b1f73972eb4791fe43d15d3 Author: Martin Kepplinger <[email protected]> Date: Tue Apr 29 11:43:08 2014 +0200 staging: dgnc: use dev_err() instead of printk() Use dev_err() insted of printk() in order to provice userspace with more useful information and use the common kernel coding style. Signed-off-by: Martin Kepplinger <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 36aa10aa018c2ed5571ffd145f39d3fcf993cee0 Author: Vitaly Osipov <[email protected]> Date: Sun Apr 27 00:59:17 2014 +1000 staging: dgnc: redundant NULL checks before kfree() Removed redundant NULL checks before calling kfree() Signed-off-by: Vitaly Osipov <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 3f2889621a6d47c3aa5e4284af808f8d79cc5d5d Author: Son P. Nguyen <[email protected]> Date: Sun Apr 20 18:05:39 2014 +0000 Staging: dgnc: dgnc_driver: fixed incorrect braces Fixed incorrect braces (coding style) Signed-off-by: Son P. Nguyen <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit df38e6558db777e1e4403a3fc16bf177fe44b79b Author: Shobhit Kumar <[email protected]> Date: Mon Apr 14 11:18:26 2014 +0530 drm/i915: MIPI PPS delays added Added as generic parameters which will be initialized in the panel driver and are specific to panels. Backlight delays have also kept as placeholders and will be used used once we have MIPI backlight enabling support Signed-off-by: Shobhit Kumar <[email protected]> Reviewed-by: Damien Lespiau <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit cf4dbd2ecb2467d0fdec80e10b2d30cfda3d0de3 Author: Shobhit Kumar <[email protected]> Date: Mon Apr 14 11:18:25 2014 +0530 drm/i915: MIPI init count programming as generic parameter Signed-off-by: Shobhit Kumar <[email protected]> Reviewed-by: Damien Lespiau <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit dfba2e2d3302b509fbf8bccd71ca5b2e0b47fefa Author: Shobhit Kumar <[email protected]> Date: Mon Apr 14 11:18:24 2014 +0530 drm/i915: Correct MIPI operation mode as per expected values from VBT In VBT fields operation mode is 0 for Video mode and 1 for command mode. This field will be directly used as is in generic panel driver. So adjust accordingly. Signed-off-by: Shobhit Kumar <[email protected]> Reviewed-by: Damien Lespiau <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 5f47dfb400d6a82d5ce9cdf537e33969af8278ff Author: Joe Perches <[email protected]> Date: Wed May 14 12:15:13 2014 -0700 ti: Remove trailing semicolon from do {...} while (0) macro These should not have trailing semicolons so remove them. Signed-off-by: Joe Perches <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 2b46be68a1b67f40df4f288b90e79181c387eda6 Author: Antoine Sirinelli <[email protected]> Date: Thu Mar 27 22:31:55 2014 +0100 staging: dgnc: cleanup dgnc_finalize_board_init() Trivial cleanups: - Transform a printk() to a dev_err() call - Fix 2 lines over 80 characters Signed-off-by: Antoine Sirinelli <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 542f3d5af89c15d0b4e80bbf927d252efa0e48c3 Author: Mark Hounschell <[email protected]> Date: Fri Apr 25 14:32:15 2014 -0400 staging: dgap: Add Mark Hounschell to maintainers list for dgap Add Mark Hounschell to the MAINTAINERs list for the dgap driver Signed-off-by: Mark Hounschell <[email protected]> Suggested-by: Dan Carpenter <[email protected]> Cc: Greg Kroah-Hartman <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 8430466a08341994c39396eb79b68e59ecc127e8 Author: Rahul Sharma <[email protected]> Date: Fri May 16 05:06:34 2014 +0900 ARM: dts: enable hdmi for exynos5800-peach-pi board Enable hdmi for peach-pi board. Signed-off-by: Rahul Sharma <[email protected]> Acked-by: Tomasz Figa<[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 8f577cadf7181243d336be9aba40c1bcc02c4c54 Author: Alexei Starovoitov <[email protected]> Date: Tue May 13 19:50:47 2014 -0700 seccomp: JIT compile seccomp filter Take advantage of internal BPF JIT 05-sim-long_jumps.c of libseccomp was used as micro-benchmark: seccomp_rule_add_exact(ctx,... seccomp_rule_add_exact(ctx,... rc = seccomp_load(ctx); for (i = 0; i < 10000000; i++) syscall(...); $ sudo sysctl net.core.bpf_jit_enable=1 $ time ./bench real 0m2.769s user 0m1.136s sys 0m1.624s $ sudo sysctl net.core.bpf_jit_enable=0 $ time ./bench real 0m5.825s user 0m1.268s sys 0m4.548s Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 622582786c9e041d0bd52bde201787adeab249f8 Author: Alexei Starovoitov <[email protected]> Date: Tue May 13 19:50:46 2014 -0700 net: filter: x86: internal BPF JIT Maps all internal BPF instructions into x86_64 instructions. This patch replaces original BPF x64 JIT with internal BPF x64 JIT. sysctl net.core.bpf_jit_enable is reused as on/off switch. Performance: 1. old BPF JIT and internal BPF JIT generate equivalent x86_64 code. No performance difference is observed for filters that were JIT-able before Example assembler code for BPF filter "tcpdump port 22" original BPF -> old JIT: original BPF -> internal BPF -> new JIT: 0: push %rbp 0: push %rbp 1: mov %rsp,%rbp 1: mov %rsp,%rbp 4: sub $0x60,%rsp 4: sub $0x228,%rsp 8: mov %rbx,-0x8(%rbp) b: mov %rbx,-0x228(%rbp) // prologue 12: mov %r13,-0x220(%rbp) 19: mov %r14,-0x218(%rbp) 20: mov %r15,-0x210(%rbp) 27: xor %eax,%eax // clear A c: xor %ebx,%ebx 29: xor %r13,%r13 // clear X e: mov 0x68(%rdi),%r9d 2c: mov 0x68(%rdi),%r9d 12: sub 0x6c(%rdi),%r9d 30: sub 0x6c(%rdi),%r9d 16: mov 0xd8(%rdi),%r8 34: mov 0xd8(%rdi),%r10 3b: mov %rdi,%rbx 1d: mov $0xc,%esi 3e: mov $0xc,%esi 22: callq 0xffffffffe1021e15 43: callq 0xffffffffe102bd75 27: cmp $0x86dd,%eax 48: cmp $0x86dd,%rax 2c: jne 0x0000000000000069 4f: jne 0x000000000000009a 2e: mov $0x14,%esi 51: mov $0x14,%esi 33: callq 0xffffffffe1021e31 56: callq 0xffffffffe102bd91 38: cmp $0x84,%eax 5b: cmp $0x84,%rax 3d: je 0x0000000000000049 62: je 0x0000000000000074 3f: cmp $0x6,%eax 64: cmp $0x6,%rax 42: je 0x0000000000000049 68: je 0x0000000000000074 44: cmp $0x11,%eax 6a: cmp $0x11,%rax 47: jne 0x00000000000000c6 6e: jne 0x0000000000000117 49: mov $0x36,%esi 74: mov $0x36,%esi 4e: callq 0xffffffffe1021e15 79: callq 0xffffffffe102bd75 53: cmp $0x16,%eax 7e: cmp $0x16,%rax 56: je 0x00000000000000bf 82: je 0x0000000000000110 58: mov $0x38,%esi 88: mov $0x38,%esi 5d: callq 0xffffffffe1021e15 8d: callq 0xffffffffe102bd75 62: cmp $0x16,%eax 92: cmp $0x16,%rax 65: je 0x00000000000000bf 96: je 0x0000000000000110 67: jmp 0x00000000000000c6 98: jmp 0x0000000000000117 69: cmp $0x800,%eax 9a: cmp $0x800,%rax 6e: jne 0x00000000000000c6 a1: jne 0x0000000000000117 70: mov $0x17,%esi a3: mov $0x17,%esi 75: callq 0xffffffffe1021e31 a8: callq 0xffffffffe102bd91 7a: cmp $0x84,%eax ad: cmp $0x84,%rax 7f: je 0x000000000000008b b4: je 0x00000000000000c2 81: cmp $0x6,%eax b6: cmp $0x6,%rax 84: je 0x000000000000008b ba: je 0x00000000000000c2 86: cmp $0x11,%eax bc: cmp $0x11,%rax 89: jne 0x00000000000000c6 c0: jne 0x0000000000000117 8b: mov $0x14,%esi c2: mov $0x14,%esi 90: callq 0xffffffffe1021e15 c7: callq 0xffffffffe102bd75 95: test $0x1fff,%ax cc: test $0x1fff,%rax 99: jne 0x00000000000000c6 d3: jne 0x0000000000000117 d5: mov %rax,%r14 9b: mov $0xe,%esi d8: mov $0xe,%esi a0: callq 0xffffffffe1021e44 dd: callq 0xffffffffe102bd91 // MSH e2: and $0xf,%eax e5: shl $0x2,%eax e8: mov %rax,%r13 eb: mov %r14,%rax ee: mov %r13,%rsi a5: lea 0xe(%rbx),%esi f1: add $0xe,%esi a8: callq 0xffffffffe1021e0d f4: callq 0xffffffffe102bd6d ad: cmp $0x16,%eax f9: cmp $0x16,%rax b0: je 0x00000000000000bf fd: je 0x0000000000000110 ff: mov %r13,%rsi b2: lea 0x10(%rbx),%esi 102: add $0x10,%esi b5: callq 0xffffffffe1021e0d 105: callq 0xffffffffe102bd6d ba: cmp $0x16,%eax 10a: cmp $0x16,%rax bd: jne 0x00000000000000c6 10e: jne 0x0000000000000117 bf: mov $0xffff,%eax 110: mov $0xffff,%eax c4: jmp 0x00000000000000c8 115: jmp 0x000000000000011c c6: xor %eax,%eax 117: mov $0x0,%eax c8: mov -0x8(%rbp),%rbx 11c: mov -0x228(%rbp),%rbx // epilogue cc: leaveq 123: mov -0x220(%rbp),%r13 cd: retq 12a: mov -0x218(%rbp),%r14 131: mov -0x210(%rbp),%r15 138: leaveq 139: retq On fully cached SKBs both JITed functions take 12 nsec to execute. BPF interpreter executes the program in 30 nsec. The difference in generated assembler is due to the following: Old BPF imlements LDX_MSH instruction via sk_load_byte_msh() helper function inside bpf_jit.S. New JIT removes the helper and does it explicitly, so ldx_msh cost is the same for both JITs, but generated code looks longer. New JIT has 4 registers to save, so prologue/epilogue are larger, but the cost is within noise on x64. Old JIT checks whether first insn clears A and if not emits 'xor %eax,%eax'. New JIT clears %rax unconditionally. 2. old BPF JIT doesn't support ANC_NLATTR, ANC_PAY_OFFSET, ANC_RANDOM extensions. New JIT supports all BPF extensions. Performance of such filters improves 2-4 times depending on a filter. The longer the filter the higher performance gain. Synthetic benchmarks with many ancillary loads see 20x speedup which seems to be the maximum gain from JIT Notes: . net.core.bpf_jit_enable=2 + tools/net/bpf_jit_disasm is still functional and can be used to see generated assembler . there are two jit_compile() functions and code flow for classic filters is: sk_attach_filter() - load classic BPF bpf_jit_compile() - try to JIT from classic BPF sk_convert_filter() - convert classic to internal bpf_int_jit_compile() - JIT from internal BPF seccomp and tracing filters will just call bpf_int_jit_compile() Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit f3c2af7ba17a83809806880062c9ad541744fb95 Author: Alexei Starovoitov <[email protected]> Date: Tue May 13 19:50:45 2014 -0700 net: filter: x86: split bpf_jit_compile() Split bpf_jit_compile() into two functions to improve readability of for(pass++) loop. The change follows similar style of JIT compilers for arm, powerpc, s390 The body of new do_jit() was not reformatted to reduce noise in this patch, since the following patch replaces most of it. Tested with BPF testsuite. Signed-off-by: Alexei Starovoitov <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 721b79d12fef7f13c0ac2cabb7cce39976769fcf Author: Christian Engelmayer <[email protected]> Date: Wed May 7 21:43:37 2014 +0200 staging: vt6656: fix potential leak in vt6656_hostap_ioctl() Commit fb841d67 (staging: vt6656: don't leak 'param' in vt6656_hostap_ioctl() when returning -EOPNOTSUPP) cleaned up direct returns in the ioctl switch statement that leaked already allocated memory. Fix the same issue for VIAWGET_HOSTAPD_SCAN_REQ and VIAWGET_HOSTAPD_MLME that are not supported by this driver. Detected by Coverity - CID 144381. Signed-off-by: Christian Engelmayer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 92216fa31ef27bd840e921d1f474213cdbe3fb70 Author: Rahul Sharma <[email protected]> Date: Fri May 16 05:23:21 2014 +0900 ARM: dts: enable hdmi for exynos5420-peach-pit board Enable hdmi for exynos5420 based peach-pit board. Signed-off-by: Rahul Sharma <[email protected]> Acked-by: Tomasz Figa<[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 62a3f8a10d8dab8bae7565358bee3f923f02b8a0 Author: Malcolm Priestley <[email protected]> Date: Wed Apr 30 21:31:13 2014 +0100 staging: vt6656: desh.h Remove unused macros and structures. All are dead and of no use. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 05cc617b5db8a6debac873e4dcfbd6d679406730 Author: Malcolm Priestley <[email protected]> Date: Wed Apr 30 21:31:12 2014 +0100 staging: vt6656: rxtx: Remove unused uDMAIdx from driver. Remove from functions and callers. Signed-off-by: Malcolm Priestley <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit ea9a8dae5acca2e2ac0421279de7818e92e4b251 Author: Martin Kepplinger <[email protected]> Date: Tue May 6 07:58:39 2014 +0200 staging: vt6656: make spin_lock_irq() human readable Don't require FIRMWAREbDownload() to, first off, unlock a held lock. Thus do all locking in main_usb.c and hold it for a insignificantly shorter period of time. This makes the affected area significantly more readable though. Signed-off-by: Martin Kepplinger <[email protected]> Reviewed-by: Dan Carpenter <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit bc5cf6563576bb36baa7e93417b9a2e29999a5c6 Author: Guido Martínez <[email protected]> Date: Sat Apr 19 16:45:00 2014 -0300 staging: vt6655: fix checkpatch bracing issues This patchs fixes tons of warnings such as: WARNING: braces {} are not necessary for single statement blocks #354: FILE: drivers/staging/vt6655/wmgr.c:354: + for (ii = 0; ii < WLAN_BSSID_LEN; ii++) { + pMgmt->abyDesireBSSID[ii] = 0xFF; + } Please note: this patch only fixes bracing issues (and there is still a lot to do); so if you run checkpatch it _will_ throw a lot of errors. Use --test-only=braces Signed-off-by: Guido Martínez <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 4e8a7e5fc29697f881f5c358f84df52914908703 Author: Guido Martínez <[email protected]> Date: Sat Apr 19 16:44:59 2014 -0300 staging: vt6655: remove dead code Remove dead code in many places on this driver. Signed-off-by: Guido Martínez <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 3da8a316cfb52bc360960ad293433cba393d2943 Author: Rahul Sharma <[email protected]> Date: Fri May 16 05:23:16 2014 +0900 ARM: dts: change to correct compatible string for exynos5420 hdmi Replace compatible string for HDMI node in Exynos5420. Since latest restructring in Drm hdmi driver, it is agreed to use a seperate compatible string for Exynos5420 HDMI IP siince it uses APB mapped Phy. Signed-off-by: Rahul Sharma <[email protected]> Acked-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 838c2d6cfc0c2dc8ce136e01e681fc6cf4124c39 Author: Tobias Klauser <[email protected]> Date: Fri Apr 25 11:53:58 2014 +0200 staging: vt6656: Use proper target pointer in memcpy() The coverity scanner marked these two memcpy()'s as causing a buffer overflow in CIDs 142743 and 142744. This is due the h_dest member of struct ethhdr being used as a target (size ETH_ALEN) in memcpy, but the copy is of size ETH_HLEN. However, the intention here seems to be to copy the entire ethernet header. Make that clear by specifying the proper destination buffer. Also remove the unnecessary casts of the source argument. Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 34bdb981f7cb446259b0999d40f090c16f732eca Author: Tobias Klauser <[email protected]> Date: Fri Apr 25 15:39:12 2014 +0200 staging: vt6656: Remove unnecesssary NULL check pFifoHead points to tx_buffer->fifo_head which can never be NULL. We also don't need to check for tx_buffer being NULL instead, since it always points to ->Data of struct vnt_usb_send_context - the pointer to which was checked before calling s_vGenerateTxParameter(). Silences a dereference before NULL check warning reported by the coverity scanner in CID 1127221. Cc: Dan Carpenter <[email protected]> Signed-off-by: Tobias Klauser <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 91ed9a7cddf1130af3a3aef0325d6e6d08eaffb2 Author: Nicolas Del Piano <[email protected]> Date: Fri Apr 25 14:36:56 2014 -0300 Staging: vt6655: tether: fixed a brace coding style issue Fixed a coding style issue. Signed-off-by: Nicolas Del Piano <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit db35b140c6f39135a3593044ce5fd384e51a3a35 Author: Rahul Sharma <[email protected]> Date: Fri May 16 05:22:41 2014 +0900 ARM: dts: enable hdmi for exynos5250 based snow board Enable support for HDMI for exynos5250 based Snow board. Signed-off-by: Rahul Sharma <[email protected]> Acked-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit a99698facdb92adebf4a4ed7691493b7e08ff5b6 Author: Alan <[email protected]> Date: Mon May 12 16:57:22 2014 +0100 goldfish: clean up the pipe driver 64bit ifdefs Use the 64bit helper method to scrub most of the ifdefs from the driver. The pipe reading has a funny case we can't scrub completely. Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit d78055dc9c786b392ce7b593c479bb9a3e1da61d Author: Alan <[email protected]> Date: Mon May 12 16:57:14 2014 +0100 goldfish: clean up the checkpatch warnings Mostly spacing changes, also making the operations structure const Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit e0f682e05f51c9eff68e61ce2350155895cd739e Author: Alan <[email protected]> Date: Mon May 12 16:57:05 2014 +0100 goldfish: clean up tty 64bit support Use the helper we now have available. Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit f6279717bbb20bf90ec414af17d2a31d843f5eb5 Author: Alan <[email protected]> Date: Mon May 12 16:56:56 2014 +0100 goldfish: clean up staging ifdefs Use the write helpers and add an audio helper Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 9b17aeec232a5f0a61ce3952c2e728a0eeddda8b Author: Alan <[email protected]> Date: Mon May 12 16:55:35 2014 +0100 goldfish: Allow 64bit builds We can now enable the 64bit option for the Goldfish 64bit emulator. Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit b8658bc81089d656fe54b12e21f0cae5116b6483 Author: Jun Tian <[email protected]> Date: Mon May 12 16:55:26 2014 +0100 goldfish: enable 64-bit tty driver Signed-off-by: Jun Tian <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit ec5e34c074793a1f80faaf75e9468dd2f39ec1dc Author: Nick Kralevich <[email protected]> Date: Mon May 12 16:55:16 2014 +0100 goldfish_nand.c: remove length restrictions Remove limitations on the size of a read / write request. AFAIK, there's no consequence to allowing the upper layers to specify different read / write sizes. This is needed to support running ext4 on goldfish. Bug: https://code.google.com/p/android/issues/detail?id=38561 Signed-off-by: Nick Kralevich <[email protected]> Signed-off-by: Jun Tian <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit f10d8434201859d5ad7f51032dcd2d0c09e85ee2 Author: Octavian Purdila <[email protected]> Date: Mon May 12 16:55:05 2014 +0100 goldfish: add support for 64bit to the virtual bus This patchs adds a new register to pass the upper 32bits for the device name address when running in 64bit mode. Signed-off-by: Octavian Purdila <[email protected]> Signed-off-by: Jun Tian <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 25c72c786cb571cfdf39a31f9f64d143d8623a7a Author: Jun Tian <[email protected]> Date: Mon May 12 16:54:57 2014 +0100 goldfish: fix kernel panic when using multiple adb connection When using multiple adb on 64 bit kernel to transfer data, the goldfish pipe interrupt will crash the kernel. Signed-off-by: Jun Tian <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 49a75c444fcf07fdde2ec74428b6b1b9ff1c6b15 Author: Jun Tian <[email protected]> Date: Mon May 12 16:54:46 2014 +0100 goldfish: 64-bit pipe driver for goldfish platform Support 64-bit channel and address for the goldfish pipe driver. Signed-off-by: Jun Tian <[email protected]> Signed-off-by: Octavian Purdila <[email protected]> Signed-off-by: Brian Wood <[email protected]> Signed-off-by: Alan Cox <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit 0cc6c3ab3cdbcf8a4a103d27599a6d0b44a6c315 Author: Christian Engelmayer <[email protected]> Date: Wed May 7 21:21:58 2014 +0200 staging: rtl8723au: Remove unused pointer in rtw_wdev_free() Pointer 'pwdev_priv' in function rtw_wdev_free() is unused - thus remove it. Signed-off-by: Christian Engelmayer <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> commit b16be76f926ff177cb9884be4cd62580c820420b Author: Doug Anderson <[email protected]> Date: Fri May 16 05:16:14 2014 +0900 ARM: dts: add tps65090 power regulator for exynos5250-snow Added TPS65090 regulator related nodes to Snow board. Signed-off-by: Doug Anderson <[email protected]> Signed-off-by: Sachin Kamat <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit ecad159a24e587c9f315e561fb509fe1cd9b54ba Author: Doug Anderson <[email protected]> Date: Fri May 16 05:16:11 2014 +0900 ARM: dts: add pinctrl for EC irq of exynos5250-snow Added pinctrl node for embedded controller (EC) IRQ on Snow board. Signed-off-by: Doug Anderson <dianders@c…

GIT b96ba19767320e2b27ceb4e1976ec21f0ab54605 commit fbfad49076646165bbd72de4dccf1d5132ab7856 Author: Lars-Peter Clausen <[email protected]> Date: Tue May 20 11:13:28 2014 +0200 ASoC: neo1973_wm8753: Automatically disconnected non-connected pins The DAPM routes for this board are complete, hence we can let the core take care of disconnecting non-connected pins rather than doing it manually. Signed-off-by: Lars-Peter Clausen <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 41148c3a728222a885bc2f3ba3ce66831de0b244 Author: Qipan Li <[email protected]> Date: Sun May 4 14:32:36 2014 +0800 spi: sirf: decrease the interrupt count and latency of PIO mode current PIO tranfer method be described as follows: 1. fill as much as bytes but no more than 256 bytes(fifo size) 2. enable oflow/uflow/txfifo_empty interrupt 3. isr process 3 interrupt signal, do complete works. 4. after isr done, if there are left bytes go into 1 else go into 5 5. transfer end by current PIO transfer method: 1. reduce interrupt counts in spi interrupt line. 2. reduce interrupt latency because no do data fill/fetch in isr. Signed-off-by: Qipan Li <[email protected]> Signed-off-by: Barry Song <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit c86d50f9dc525cb0264c25ed5186faf0f1d00477 Author: Sylwester Nawrocki <[email protected]> Date: Mon May 19 19:30:38 2014 +0200 ASoC: samsung: Allow setting OP_CLK of the IIS Multi Audio Interface This patch adds support for setting source clock of the "Core CLK" of the IIS Multi Audio Interface. Signed-off-by: Sylwester Nawrocki <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit b45281412a6334ab2be5d7e449c98f50fb424a78 Author: Arnd Bergmann <[email protected]> Date: Sun May 4 11:25:21 2014 +0800 ASoC: pxa: remove mach header dependency As we are moving the mmp platform towards multiplatform support, we have to stop including platform header files. This changes the pxa-ssp sound driver file to no longer depend on mach/hardware.h and mach/dma.h. The code using the definitions from those headers is actually gone already, the only thing that was still being used was the pxa_dma_desc typedef, which we can easily work around by using the normal 'struct pxa_dma_desc' name. The pxa2xx-dma driver still uses this header, so we include it explicitly there, which is ok because that is only used on pxa, not on mmp. Signed-off-by: Arnd Bergmann <[email protected]> Signed-off-by: Xia Kaixu <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 7d6d478f38fb1bdef30ae1a4c9d5aefb7cb2bb9b Author: Andrew Lunn <[email protected]> Date: Sat May 3 20:30:11 2014 +0200 ASoC: alc5623: Add device tree binding Let the ALC5623 codec be instantiated from DT. Add a simple binding for the additional control register and the jack detect register. Also, add a prompt to the Kconfig entry for this CODEC, so that it can be selected. Since kirkwood-t5325.c will no longer be used, we need to be able to enable the CODEC in the mvebu_v5_defconfig etc. Signed-off-by: Andrew Lunn <[email protected]> Acked-by: Jason Cooper <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit ee9daad4953418ecf28a6b0b920f982fe0c24814 Author: Sascha Hauer <[email protected]> Date: Mon Apr 28 12:54:52 2014 +0200 ASoC: fsl-ssi: Move fsl_ssi_set_dai_sysclk above fsl_ssi_hw_params fsl_ssi_set_dai_sysclk will be called from fsl_ssi_hw_params in the next patch. Move up to avoid forward declaration and to keep the next patch more readable. No functional change. Signed-off-by: Sascha Hauer <[email protected]> Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 504894799fa122822f5c48be2968e04d3f1af8e8 Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:51 2014 +0200 ASoC: fsl-ssi: Transmit enable synchronization When the fsl-ssi unit is used in i2s slave mode, it is possible that the SSI unit starts transmitting data on the wrong channel. This happens because the SSI does not synchronize with the left-right-clock by default. This patch enables transmit enable synchronization. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 171d683d2ac4ab6f220cc99de08ef9ec2c039966 Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:48 2014 +0200 ASoC: fsl-ssi: Remove unnecessary variables from ssi_private There are some variables defined in struct fsl_ssi_private that describe states that are also described by other variables. This patch adds some helper functions that return exactly the same information based on available variables. This helps to clean up struct fsl_ssi_private and remove them from the probe function. It also removes some not really used variables (new_binding, name). Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 4d9b7926f2ce271e0670cf0e7131a0e2a686690a Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:47 2014 +0200 ASoC: fsl-ssi: Cleanup probe function Reorder the probe function to be able to move the second imx-specific block to the seperate imx probe function. The patch also removes some comments/variables/code that are not used anymore or could be simply replaced by other variables. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit ed0f1604e93c686d8151c5a9bcbe36a2986caf40 Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:46 2014 +0200 ASoC: fsl-ssi: Remove useless DMA code Simplify dma DT property handling. fsl,ssi-dma-events is not used anymore. It passes invalid data to imx_pcm_dma_params_init_data() which copies some data into an imx dma struct. This struct is never used in imx-dma or imx-sdma because of generic OF DMA handling. The "fsl,ssi-dma-events" is not used anywhere in dts files. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 49da09e26577702516e946ecd537f50b87533315 Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:45 2014 +0200 ASoC: fsl-ssi: Move imx-specific probe to seperate function Move imx specific probe code to a seperate function. It reduces the size of the probe() function and makes the code and error handling easier to understand. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 2a1d102de40a799072309d4d84fa6f214c5ee999 Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:44 2014 +0200 ASoC: fsl-ssi: Use dev_name for DAI driver struct Instead of creating a name using string manipulation functions, we can simply use the device name for the DAI driver struct. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit f138e6212427d0ea6283e07b706823b657ddf14f Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:43 2014 +0200 ASoC: fsl-ssi: Move debugging to seperate file Move all code that is only used for debugging to a seperate file. This makes it easier to see what functions are used for debugging only. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 65c961cc59345fa347173e5a1f5866bc866fd626 Author: Markus Pargmann <[email protected]> Date: Mon Apr 28 12:54:42 2014 +0200 ASoC: fsl-ssi: Fix register values when disabling The bits we have to clear when disabling are different when the other stream is still active. This patch fixes the calculation of new register values after disabling one stream. It also adds a more detailed description of the new register value calculation. Signed-off-by: Markus Pargmann <[email protected]> Tested-By: Michael Grzeschik <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 55bc82536960e4749df7ae5666a93702190c53d4 Author: Lars-Peter Clausen <[email protected]> Date: Mon May 19 11:41:48 2014 +0200 ASoC: mop500_ab8500: Replace instances of rtd->codec->card with rtd->card No need to go via the CODEC to get a pointer to the card. This will help to eventually remove the card field from the snd_soc_codec struct. Signed-off-by: Lars-Peter Clausen <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit 0596f70069bb5ab34eea980c14fad1041f2abae5 Author: Lars-Peter Clausen <[email protected]> Date: Mon May 19 11:41:46 2014 +0200 ASoC: omap: Replace instances of rtd->codec->card with rtd->card No need to go via the CODEC to get a pointer to the card. This will help to eventually remove the card field from the snd_soc_codec struct. Signed-off-by: Lars-Peter Clausen <[email protected]> Acked-by: Jarkko Nikula <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit cf7b71f46b1c2f0376c373e10e5eee1b1fa3cd12 Author: Lars-Peter Clausen <[email protected]> Date: Tue May 20 14:23:10 2014 +0200 ASoC: ad1980: Replace goto loop with do-while loop Using a proper do-while loop here instead of a open-coded goto loop is both cleaner and shorter. Also fixes the following warnings from smatch: sound/soc/codecs/ad1980.c:213 ad1980_reset() info: loop could be replaced with if statement. sound/soc/codecs/ad1980.c:212 ad1980_reset() info: ignoring unreachable code. sound/soc/codecs/ad1980.c:215 ad1980_reset() info: ignoring unreachable code. While we are at it also change retry_cnt to unsigned int, using u16 for a on-stack loop counter doesn't make that much sense. Signed-off-by: Lars-Peter Clausen <[email protected]> Signed-off-by: Mark Brown <[email protected]> commit da41a589f52464e24ddefe76814ee35bfb07950c Author: Robert Elliott <[email protected]> Date: Tue May 20 16:46:26 2014 -0500 blk-mq: Micro-optimize blk_queue_nomerges() check In blk_mq_make_request(), do the blk_queue_nomerges() check outside the call to blk_attempt_plug_merge() to eliminate function call overhead when nomerges=2 (disabled) Signed-off-by: Robert Elliott <[email protected]> Signed-off-by: Jens Axboe <[email protected]> commit eba7176826ddab1d04c51bb2d5f2bbf22865444c Author: Jens Axboe <[email protected]> Date: Tue May 20 15:17:27 2014 -0600 blk-mq: initialize q->nr_requests after calling blk_queue_make_request() blk_queue_make_requests() overwrites our set value for q->nr_requests, turning it into the default of 128. Set this appropriately after initializing queue values in blk_queue_make_request(). Signed-off-by: Jens Axboe <[email protected]> commit bc76e320f21f8bd790a72bd5dc06909617432352 Author: Daniel Vetter <[email protected]> Date: Tue May 20 22:46:50 2014 +0200 drm/i915: Drop now misleading DDI comment from dp_link_down Since commit 2e82a7203182d0883d0f9450d40ad6e1c6578ad9 Author: Imre Deak <[email protected]> Date: Fri Jan 17 15:46:43 2014 +0200 drm/i915: don't disable DP port after a failed link training and commit 5d6a1116c6475404e6505b708320f9579ae19acd Author: Imre Deak <[email protected]> Date: Thu Jan 16 18:35:57 2014 +0200 drm/i915: don't disable the DP port if the link is lost we no longer call intel_dp_link_down from generic DP code, but only from the !HAS_DDI dp encoder functions. hsw/bdw have their own encoder disabling callback in intel_ddi.c. Hence the early return is no longer needed and the big comment just confusing, so let's rip it out. To ensure what we don't accidentally use this again on ddi encoders add a WARN_ON instead. Spotted while reading through intel_dp.c Cc: Imre Deak <[email protected]> Cc: Paulo Zanoni <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 96810471673393c931595a013f0f3094b564b1e9 Author: John W. Linville <[email protected]> Date: Tue May 20 15:34:37 2014 -0400 ath9k: fixup "ath9k_htc: fix build with disabled debug" Apparently Oleksij's compile testing was no better than mine initially was... :-( Cc: Oleksij Rempel <[email protected]> Signed-off-by: John W. Linville <[email protected]> commit 37c492c8f6a99870551fe2964b2dfce5d9e87375 Author: Harald Brinkmann <[email protected]> Date: Tue May 20 20:28:00 2014 +0200 HID: quirk for Saitek RAT7 and MMO7 mices' mode button Some saitek mice implement a tristate button (for switching button mappings in the original driver) by keeping one of three (non-physical) buttons constantly pressed. This breaks X and probably other userspace software. This patch implements a quirk for the R.A.T.7 and M.M.O.7, tracking the mode and generating presses of a single button if it changes. Also the missing release event is generated instantly. Signed-off-by: Harald Brinkmann <[email protected]> Signed-off-by: Jiri Kosina <[email protected]> commit 525997e00bd32c3e25d5f77c26703f76c498f424 Author: Jani Nikula <[email protected]> Date: Tue Apr 29 23:30:48 2014 +0300 drm/i915: shuffle panel code Somehow a few functions have been dropped in the middle of backlight code. Move them around. No functional changes. Signed-off-by: Jani Nikula <[email protected]> Reviewed-by: Jesse Barnes <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 9aa7250feb202f246afd90d9525debabe10cc0a5 Author: Ville Syrjälä <[email protected]> Date: Mon May 19 19:23:26 2014 +0300 drm/i915: Clear GDSR after reset on ILK Clear the reset domain after a succesful GPU reset on ilk. We already do that on gen4, so let's try to be a bit more consistent. And if ether render or media reset fails, we might use the leftover value in the register to pinpoint the culprit. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Jesse Barnes <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit f73387cb6b1f1534e56669e6aecefae1be867f59 Author: Dylan Reid <[email protected]> Date: Tue May 20 11:26:12 2014 -0700 ALSA: hda/tegra - Fix MODULE_DEVICE_TABLE typo. I missed a rename during the review process. Fix the MODULE_DEVICE_TABLE to match the structure. Signed-off-by: Dylan Reid <[email protected]> Signed-off-by: Takashi Iwai <[email protected]> commit 0f08ffd6633fe8b8306229593027009e90f86c8c Author: Ville Syrjälä <[email protected]> Date: Mon May 19 19:23:25 2014 +0300 drm/i915: Kill RMW from ILK reset code All the other bits in the GDSR register are read-only, so we don't have to preserve them when we perform a GPU reset. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Jesse Barnes <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit fc3b7a70ac7c2baee512a1ea8df9e7c4085ac3e5 Author: Joe Thornber <[email protected]> Date: Tue May 13 16:14:14 2014 -0400 dm thin: cleanup noflush_work to use a proper completion Factor out a pool_work interface that noflush_work makes use of to wait for and complete work items (in terms of a proper completion struct). Allows discontinuing the use of a custom completion in terms of atomic_t and wait_event. Signed-off-by: Joe Thornber <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 8490cd8ed20f9ff7b54a3fc858a1ff4b98a5593f Author: Mikulas Patocka <[email protected]> Date: Fri Mar 14 18:43:07 2014 -0400 dm snapshot: do not split read bios sent to snapshot-origin target Change the snapshot-origin target so that only write bios are split on chunk boundary. Read bios are passed unchanged to the underlying device, so they don't have to be split. Later, we could change the target so that it accepts a larger write bio if it spans an area that is completely covered by snapshot exceptions. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit c0d4c8e9d1bb7fdc847e0753cceaf557d19d6223 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 14 18:42:12 2014 -0400 dm snapshot: allocate a per-target structure for snapshot-origin target Allocate a per-target dm_origin structure. This is a prerequisite for the next commit ("dm snapshot: do not split read bios sent to snapshot-origin target") which adds a new member to this structure. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 12f66f49e359a35942b2a3170227132d75d47c32 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 14 18:41:24 2014 -0400 dm: introduce dm_accept_partial_bio The function dm_accept_partial_bio allows the target to specify how many sectors of the current bio it will process. If the target only wants to accept part of the bio, it calls dm_accept_partial_bio and the DM core sends the rest of the data in next bio. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit e628835d01fa8e3cc6764948fad1229ba79f08c3 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 14 18:40:39 2014 -0400 dm: change sector_count member in clone_info from sector_t to unsigned It is impossible to create bios with 2^23 or more sectors (the size is stored as a 32-bit byte count in the bio). So we convert some sector_t values to unsigned integers. This is needed for the next commit ("dm: introduce dm_accept_partial_bio") that replaces integer value arguments with pointers, so the size of the integer must match. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 80c578930ce77ba8bcfb226a184b482020bdda7b Author: Mike Snitzer <[email protected]> Date: Tue May 20 13:38:33 2014 -0400 dm thin: add 'no_space_timeout' dm-thin-pool module param Commit 85ad643b ("dm thin: add timeout to stop out-of-data-space mode holding IO forever") introduced a fixed 60 second timeout. Users may want to either disable or modify this timeout. Allow the out-of-data-space timeout to be configured using the 'no_space_timeout' dm-thin-pool module param. Setting it to 0 will disable the timeout, resulting in IO being queued until more data space is added to the thin-pool. Signed-off-by: Mike Snitzer <[email protected]> Cc: [email protected] # 3.14+ commit 5f80ff8eccba50832dcc640ac89add4c7fced963 Author: Sagi Grimberg <[email protected]> Date: Tue May 20 13:28:11 2014 +0300 Target/iser: Gracefully reject T10-PI enabled connect request if not supported In case user chose to set T10-PI enable on the target while the IB device does not support it, gracefully reject the request. Reported-by: Slava Shwartsman <[email protected]> Signed-off-by: Sagi Grimberg <[email protected]> Cc: [email protected] # 3.15+ Signed-off-by: Nicholas Bellinger <[email protected]> commit f5ebec9629cf78eeeea4b8258882a9f439ab2404 Author: Sagi Grimberg <[email protected]> Date: Mon May 19 17:44:25 2014 +0300 Target/iser: Wait for proper cleanup before unloading disconnected_handler works are scheduled on system_wq. When attempting to unload, first make sure all works have cleaned up. Signed-off-by: Sagi Grimberg <[email protected]> Cc: [email protected] # 3.10+ Signed-off-by: Nicholas Bellinger <[email protected]> commit 88c4015fda6d014392f76d3b1688347950d7a12d Author: Sagi Grimberg <[email protected]> Date: Mon May 19 17:44:24 2014 +0300 Target/iser: Improve cm events handling There are 4 RDMA_CM events that all basically mean that the user should teardown the IB connection: - DISCONNECTED - ADDR_CHANGE - DEVICE_REMOVAL - TIMEWAIT_EXIT Only in DISCONNECTED/ADDR_CHANGE it makes sense to call rdma_disconnect (send DREQ/DREP to our initiator). So we keep the same teardown handler for all of them but only indicate calling rdma_disconnect for the relevant events. This patch also removes redundant debug prints for each single event. v2 changes: - Call isert_disconnected_handler() for DEVICE_REMOVAL (Or + Sag) Signed-off-by: Sagi Grimberg <[email protected]> Cc: [email protected] # 3.10+ Signed-off-by: Nicholas Bellinger <[email protected]> commit 9b204fbf0987748ec6cc4a3cde0064ecf42accd0 Author: Asai Thambi S P <[email protected]> Date: Tue May 20 10:48:56 2014 -0700 mtip32xx: move error handling to service thread Move error handling to service thread, and use mtip_set_timeout() to set timeouts for HDIO_DRIVE_TASK and HDIO_DRIVE_CMD IOCTL commands. Signed-off-by: Selvan Mani <[email protected]> Signed-off-by: Asai Thambi S P <[email protected]> Signed-off-by: Jens Axboe <[email protected]> commit e3a2b3f931f59d5284abd13faf8bded726884ffd Author: Jens Axboe <[email protected]> Date: Tue May 20 11:49:02 2014 -0600 blk-mq: allow changing of queue depth through sysfs For request_fn based devices, the block layer exports a 'nr_requests' file through sysfs to allow adjusting of queue depth on the fly. Currently this returns -EINVAL for blk-mq, since it's not wired up. Wire this up for blk-mq, so that it now also always dynamic adjustments of the allowed queue depth for any given block device managed by blk-mq. Signed-off-by: Jens Axboe <[email protected]> commit 463eb599929709d6b53bf6f3bea1189292cd8456 Author: Richard Fitzgerald <[email protected]> Date: Tue May 20 13:48:51 2014 +0100 mfd: arizona: Correct addresses of always-on trigger registers Update the addresses and names to match current silicon. The WM8997 regmap tables have been adjusted to match the new names. Missing registers have been added to WM5110 default value table. Signed-off-by: Richard Fitzgerald <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 145894202252809015c3b7d764dc571cfd457f24 Author: Jay Aurabind <[email protected]> Date: Sat May 10 17:32:11 2014 +0530 mfd: abx500-core: Fix compiler warning larger stack frame On systems with CONFIG_FRAME_WARN=1024, compiler warns the allocation of an object of struct device on stack. Make the allocation dynamically to fix the warning. drivers/mfd/abx500-core.c: In function ‘abx500_dump_all_banks’: drivers/mfd/abx500-core.c:167:1: warning: the frame size of 1032 bytes is larger than 1024 bytes [-Wframe-larger-than=] Signed-off-by: Aurabindo J <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 43d6a0e7cc04e9d22636fe7ef8896ca906218b24 Author: Boris BREZILLON <[email protected]> Date: Thu May 15 19:51:43 2014 +0200 mfd: axp22x: Add support for APX221 PMIC This patch introduces preliminary support for the X-Powers AXP221 PMIC. The AXP221 is typically used on boards using Allwinner's A31 SoC. At the moment, this driver only exposes regulator devices, but other subdevices. Signed-off-by: Boris BREZILLON <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit e9ff951e5b4f16f078394555c42c62e73a6eeb5f Author: Lee Jones <[email protected]> Date: Tue May 20 15:37:41 2014 +0100 mfd: max14577: Cast to architecture agnostic data type drivers/mfd/max14577.c:334:25: warning: cast from pointer to integer of different size max14577->dev_type = (unsigned int)of_id->data; ^ Signed-off-by: Lee Jones <[email protected]> commit 4e31f780bdebcd23700703fbedf1d3bffd05043f Author: Lee Jones <[email protected]> Date: Tue May 20 15:35:27 2014 +0100 mfd: axp20x: Remove unnecessary const qualifier from axp20x_supplies[] drivers/mfd/axp20x.c:159:3: warning: initialization discards ‘const’ qualifier from pointer target type .parent_supplies = axp20x_supplies, ^ Signed-off-by: Lee Jones <[email protected]> commit e917e890cf40510d35253034de850410b56a6e20 Author: Doug Anderson <[email protected]> Date: Wed Apr 30 10:44:06 2014 -0700 mfd: cros_ec: spi: Make the cros_ec_spi timeout more reliable The cros_ec_spi transfer had two problems with its timeout code: 1. It looked at the timeout even in the case that it found valid data. 2. If the cros_ec_spi code got switched out for a while, it's possible it could get a timeout after a single loop. Let's be paranoid and make sure we do one last transfer after the timeout expires. Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: Andrew Bresticker <[email protected]> Tested-by: Stephen Warren <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 626bffd4dd65dccdf0978eff6a3341c1d7b04b9a Author: Doug Anderson <[email protected]> Date: Wed Apr 30 10:44:07 2014 -0700 mfd: cros_ec: spi: Increase cros_ec_spi deadline from 5ms to 100ms We're adding i2c tunneling to the list of things that goes over cros_ec. i2c tunneling can be slooooooow, so increase our deadline to 100ms to account for that. Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: Andrew Bresticker <[email protected]> Tested-by: Stephen Warren <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit e917e3366c7be56a08d84417b36a143b2e8af716 Author: Doug Anderson <[email protected]> Date: Wed Apr 30 10:44:05 2014 -0700 mfd: cros_ec: spi: Add mutex to cros_ec_spi The main transfer function for cros_ec_spi can be called by more than one client at a time. Make sure that those clients don't stomp on each other by locking the bus for the duration of the transfer function. Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: Andrew Bresticker <[email protected]> Tested-by: Stephen Warren <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 6bcd21ee2826c978defc9169227e3e850537a519 Author: David Hendricks <[email protected]> Date: Wed Apr 30 10:44:04 2014 -0700 mfd: cros_ec: spi: Calculate delay between transfers correctly To avoid spamming the EC we calculate the time between the previous transfer and the current transfer and force a delay if the time delta is too small. However, a small miscalculation causes the delay period to be far too short. Most noticably this impacts commands with a long turnaround time such as EC firmware reads and writes. Signed-off-by: David Hendricks <[email protected]> Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: Andrew Bresticker <[email protected]> Tested-by: Stephen Warren <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit f00fc2588b66d3441ed65aaa7f7f2353df00939a Author: Bill Richardson <[email protected]> Date: Wed Apr 30 10:44:08 2014 -0700 mfd: cros_ec: Sync to the latest cros_ec_commands.h from EC sources This just updates include/linux/mfd/cros_ec_commands.h to match the latest EC version (which is the One True Source for such things). See <https://chromium.googlesource.com/chromiumos/platform/ec> [dianders: took today's ToT version from the Chromium OS EC; deleted references to cros_ec_dev and cros_ec_lpc since those aren't upstream yet] Signed-off-by: Bill Richardson <[email protected]> Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Simon Glass <[email protected]> Tested-by: Andrew Bresticker <[email protected]> Tested-by: Stephen Warren <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit d46144d7bc9f9e1121fe83edf7a9cc9f19b41d9d Author: Doug Anderson <[email protected]> Date: Wed Apr 30 10:44:09 2014 -0700 i2c: ChromeOS EC tunnel driver On ARM Chromebooks we have a few devices that are accessed by both the AP (the main "Application Processor") and the EC (the Embedded Controller). These are: * The battery (sbs-battery). * The power management unit tps65090. On the original Samsung ARM Chromebook these devices were on an I2C bus that was shared between the AP and the EC and arbitrated using some extranal GPIOs (see i2c-arb-gpio-challenge). The original arbitration scheme worked well enough but had some downsides: * It was nonstandard (not using standard I2C multimaster) * It only worked if the EC-AP communication was I2C * It was relatively hard to debug problems (hard to tell if i2c issues were caused by the EC, the AP, or some device on the bus). On the HP Chromebook 11 the design was changed to: * The AP/EC comms were still i2c, but the battery/tps65090 were no longer on the bus used for AP/EC communication. The battery was exposed to the AP through a limited i2c tunnel and tps65090 was exposed to the AP through a custom Linux driver. On the Samsung ARM Chromebook 2 the scheme is changed yet again, now: * The AP/EC comms are now using SPI for faster speeds. * The EC's i2c bus is exposed to the AP through a full i2c tunnel. The upstream "tegra124-venice2" uses the same scheme as the Samsung ARM Chromebook 2, though it has a different set of components on the other side of the bus. This driver supports the scheme used by the Samsung ARM Chromebook 2. Future patches to this driver could add support for the battery tunnel on the HP Chromebook 11 (and perhaps could even be used to access tps65090 on the HP Chromebook 11 instead of using a special driver, but I haven't researched that enough). Signed-off-by: Vincent Palatin <[email protected]> Signed-off-by: Simon Glass <[email protected]> Signed-off-by: Doug Anderson <[email protected]> Reviewed-by: Wolfram Sang <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 4bdc72930743b35f23b6c80426a2c9f6dda5e9b6 Author: Imre Deak <[email protected]> Date: Tue May 20 19:47:20 2014 +0300 drm/i915: add missing unregister_oom_notifier to the error/unload path I'm trying to reduce the WARNs during driver reload and this was one of them. Also while at it remove the redundant condition from before unregister_shrinker(). v2: - fix the error path too and move the unregister to its logical place (Chris) - remove redundant condition from before unregister_shrinker() Signed-off-by: Imre Deak <[email protected]> Reviewed-by: Chris Wilson <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 5cfb17828d877a5541171087b9d746befdf2a126 Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:08:34 2014 +0200 IB/srp: Add fast registration support Certain HCA types (e.g. Connect-IB) and certain configurations (e.g. ConnectX VF) support fast registration but not FMR. Hence add fast registration support. In function srp_rport_reconnect(), move the the srp_finish_req() loop from after to before the srp_create_target_ib() call. This is needed to avoid that srp_finish_req() tries to queue any invalidation requests for rkeys associated with the old queue pair on the newly allocated queue pair. Invoking srp_finish_req() before the queue pair has been reallocated is safe since srp_claim_req() handles completions correctly that arrive after srp_finish_req() has been invoked. Signed-off-by: Bart Van Assche <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit 52ede08f00ebfc21d50a1f3e5908a78655900519 Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:07:45 2014 +0200 IB/srp: Rename FMR-related variables The next patch will cause the renamed variables to be shared between the code for FMR and for FR memory registration. Make the names of these variables independent of the memory registration mode. This patch does not change any functionality. The start of this patch was the changes applied via the following shell command: sed -i.orig 's/SRP_FMR_SIZE/SRP_MAX_PAGES_PER_MR/g; \ s/fmr_page_mask/mr_page_mask/g;s/fmr_page_size/mr_page_size/g; \ s/fmr_page_shift/mr_page_shift/g;s/fmr_max_size/mr_max_size/g; \ s/max_pages_per_fmr/max_pages_per_mr/g;s/nfmr/nmdesc/g; \ s/fmr_len/dma_len/g' drivers/infiniband/ulp/srp/ib_srp.[ch] Signed-off-by: Bart Van Assche <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit d1b4289e16477fe13e95b88ffb7067c87b10ab6e Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:07:20 2014 +0200 IB/srp: One FMR pool per SRP connection Allocate one FMR pool per SRP connection instead of one SRP pool per HCA. This improves scalability of the SRP initiator. Only request the SCSI mid-layer to retry a SCSI command after a temporary mapping failure (-ENOMEM) but not after a permanent mapping failure. This avoids that SCSI commands are retried indefinitely if a permanent memory mapping failure occurs. Tell the SCSI mid-layer to reduce queue depth temporarily in the unlikely case where an application is queuing many requests with more than max_pages_per_fmr sg-list elements. For FMR pool allocation, base the max_pages_per_fmr parameter on the HCA memory registration limit. Only try to allocate an FMR pool if FMR is supported. Signed-off-by: Bart Van Assche <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit b1b8854d1622b99b64cd98ed307ffd168c6d3ebd Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:06:41 2014 +0200 IB/srp: Introduce the 'register_always' kernel module parameter Add a kernel module parameter that enables memory registration also for SG-lists that can be processed without memory registration. This makes it easier for kernel developers to test the memory registration code. Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit 539dde6fc5c30cfa76439de03ed3ba444d2579b3 Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:05:46 2014 +0200 IB/srp: Introduce srp_finish_mapping() This patch does not change any functionality. Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit 76bc1e1ddd1ea8d4bc230fc0aa45c1d14c232531 Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:05:21 2014 +0200 IB/srp: Introduce srp_map_fmr() This patch does not change any functionality. Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit 62154b2e892807b8373a107c277f1fa8338f4333 Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:04:45 2014 +0200 IB/srp: Introduce an additional local variable This patch does not change any functionality. Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit af24663bc8204695181cf3b92b7129efadd8d455 Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:04:21 2014 +0200 IB/srp: Fix kernel-doc warnings Avoid that the kernel-doc tool warns about missing argument descriptions for the ib_srp.[ch] source files. Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit 024ca90151f5e4296d30f72c13ff9a075e23c9ec Author: Bart Van Assche <[email protected]> Date: Tue May 20 15:03:49 2014 +0200 IB/srp: Fix a sporadic crash triggered by cable pulling Avoid that the loops that iterate over the request ring can encounter a pointer to a SCSI command in req->scmnd that is no longer associated with that request. If the function srp_unmap_data() is invoked twice for a SCSI command that is not in flight then that would cause ib_fmr_pool_unmap() to be invoked with an invalid pointer as argument, resulting in a kernel oops. Reported-by: Sagi Grimberg <[email protected]> Reference: http://thread.gmane.org/gmane.linux.drivers.rdma/19068/focus=19069 Signed-off-by: Bart Van Assche <[email protected]> Reviewed-by: Sagi Grimberg <[email protected]> Cc: stable <[email protected]> Signed-off-by: Roland Dreier <[email protected]> commit 1cc6114402f864c3d090738df355d26c1fd374bb Author: Johan Hedberg <[email protected]> Date: Tue May 20 09:45:52 2014 +0300 Bluetooth: Update smp_confirm to return a response code Now that smp_confirm() is called "inline" we can have it return a response code and have the sending of it be done in the shared place for command handlers. One exception is when we're entering smp.c from mgmt.c when user space responds to authentication, in which case we still need our own code to call smp_failure(). Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit 861580a970f1abe64193636eab9e5a1a7556a555 Author: Johan Hedberg <[email protected]> Date: Tue May 20 09:45:51 2014 +0300 Bluetooth: Update smp_random to return a response code Since we're now calling smp_random() "inline" we can have it directly return a response code and have the shared command handler send the response. Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit 4a74d65868f10dafe38765d4fe5bbf1e75f0623d Author: Johan Hedberg <[email protected]> Date: Tue May 20 09:45:50 2014 +0300 Bluetooth: Rename smp->smp_flags to smp->flags There's no reason to have "smp" in this variable name since it is already part of the SMP struct which provides sufficient context. Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit 9dd4dd275f2e6dcef1f798118babcb5947f64497 Author: Johan Hedberg <[email protected]> Date: Tue May 20 09:45:49 2014 +0300 Bluetooth: Remove unnecessary work structs from SMP code When the SMP code was initially created (mid-2011) parts of the Bluetooth subsystem were still not converted to use workqueues. This meant that the crypto calls, which could sleep, couldn't be called directly. Because of this the "confirm" and "random" work structs were introduced. These days the entire Bluetooth subsystem runs through workqueues which makes these structs unnecessary. This patch removes them and converts the calls to queue them to use direct function calls instead. Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit 1ef35827a999582669b38b71d3167907b4c2afd0 Author: Johan Hedberg <[email protected]> Date: Tue May 20 09:45:48 2014 +0300 Bluetooth: Fix setting initial local auth_req value There is no reason to have the initial local value conditional to whether the remote value has bonding set or not. We can either way start off with the value we received. Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit 4bc58f51e156227d139668199ffe5df2ccb2f3c2 Author: Johan Hedberg <[email protected]> Date: Tue May 20 09:45:47 2014 +0300 Bluetooth: Make SMP context private to smp.c There are no users of the smp_chan struct outside of smp.c so move it away from smp.h. The addition of the l2cap.h include to hci_core.c, hci_conn.c and mgmt.c is something that should have been there already previously to avoid warnings of undeclared struct l2cap_conn, but the compiler warning was apparently shadowed away by the mention of l2cap_conn in the struct smp_chan definition. Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit e1618d461ca18d40f9c3ef70598abb72e75d27ae Author: Vlad Yasevich <[email protected]> Date: Tue May 20 10:59:26 2014 -0400 vlan: Fix build error wth vlan_get_encap_level() The new function vlan_get_encap_level() uses vlan_dev_priv() which is only conditionally avaialble when VLAN support is enabled. Make vlan_get_encap_level() conditionally available as well. Fixes: 44a4085538c8 ("bonding: Fix stacked device detection in arp monitoring") Reported-by: Stephen Rothwell <[email protected]> CC: Stephen Rothwell <[email protected]> Signed-off-by: Vlad Yasevich <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 51697d393922eb643e78ac5db86e8fa5a45b469a Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:36 2014 +0800 workqueue: use generic attach/detach routine for rescuers There are several problems with the code that rescuers use to bind themselve to the target pool's cpumask. 1) It is very different from how the normal workers bind to cpumask, increasing code complexity and maintenance overhead. 2) The code of cpu-binding for rescuers is complicated. 3) If one or more cpu hotplugs happen while a rescuer is processing its scheduled work items, the rescuer may not stay bound to the cpumask of the pool. This is an allowed behavior, but is still hairy. It will be better if the cpumask of the rescuer is always kept synchronized with the pool across cpu hotplugs. Using generic attach/detach routine will solve the above problems and results in much simpler code. tj: Minor description updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 4736cbf7a4b2a6bbb50a809a6933fb7eb29dc38f Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:35 2014 +0800 workqueue: separate pool-attaching code out from create_worker() Currently, the code to attach a new worker to its pool is embedded in create_worker(). Separating this code out will make the codes clearer and will allow rescuers to share the code path later. tj: Description and comment updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 92f9c5c40cc67ffcc5ac7f55fdbd6ae8afc7e0b4 Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:34 2014 +0800 workqueue: rename manager_mutex to attach_mutex manager_mutex is only used to protect the attaching for the pool and the pool->workers list. It protects the pool->workers and operations based on this list, such as: cpu-binding for the workers in the pool->workers the operations to set/clear WORKER_UNBOUND So let's rename manager_mutex to attach_mutex to better reflect its role. This patch is a pure rename. tj: Minor command and description updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 4d757c5c81edba2052aae10d5b36dfcb9902b141 Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:33 2014 +0800 workqueue: narrow the protection range of manager_mutex In create_worker(), as pool->worker_ida now uses ida_simple_get()/ida_simple_put() and doesn't require external synchronization, it doesn't need manager_mutex. struct worker allocation and kthread allocation are not visible by any one before attached, so they don't need manager_mutex either. The above operations are before the attaching operation which attaches the worker to the pool. Between attaching and starting the worker, the worker is already attached to the pool, so the cpu hotplug will handle cpu-binding for the worker correctly and we don't need the manager_mutex after attaching. The conclusion is that only the attaching operation needs manager_mutex, so we narrow the protection section of manager_mutex in create_worker(). Some comments about manager_mutex are removed, because we will rename it to attach_mutex and add worker_attach_to_pool() later which will be self-explanatory. tj: Minor description updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 7cda9aae0596d871a8d7a6888d7b447c60e5ab30 Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:32 2014 +0800 workqueue: convert worker_idr to worker_ida We no longer iterate workers via worker_idr and worker_idr is used only for allocating/freeing ID, so we can convert it to worker_ida. By using ida_simple_get/remove(), worker_ida doesn't require external synchronization, so we don't need manager_mutex to protect it and the ID-removal code is allowed to be moved out from worker_detach_from_pool(). In a later patch, worker_detach_from_pool() will be used in rescuers which don't have IDs, so we move the ID-removal code out from worker_detach_from_pool() into worker_thread(). tj: Minor description updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit da028469ba173e9c634b6ecf80bb0c69c7d1024d Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:31 2014 +0800 workqueue: separate iteration role from worker_idr worker_idr has the iteration (iterating for attached workers) and worker ID duties. These two duties don't have to be tied together. We can separate them and use a list for tracking attached workers and iteration. Before this separation, it wasn't possible to add rescuer workers to worker_idr due to rescuer workers couldn't allocate ID dynamically because ID-allocation depends on memory-allocation, which rescuer can't depend on. After separation, we can easily add the rescuer workers to the list for iteration without any memory-allocation. It is required when we attach the rescuer worker to the pool in later patch. tj: Minor description updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 3347fc9f36e7e5d3ebe504fc4034745b5d8971d3 Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:30 2014 +0800 workqueue: destroy worker directly in the idle timeout handler Since destroy_worker() doesn't need to sleep nor require manager_mutex, destroy_worker() can be directly called in the idle timeout handler, it helps us remove POOL_MANAGE_WORKERS and maybe_destroy_worker() and simplify the manage_workers() After POOL_MANAGE_WORKERS is removed, worker_thread() doesn't need to test whether it needs to manage after processed works. So we can remove the test branch. Signed-off-by: Lai Jiangshan <[email protected]> commit 60f5a4bcf852b5dec698b08cd34efc302ea72f2b Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:29 2014 +0800 workqueue: async worker destruction worker destruction includes these parts of code: adjust pool's stats remove the worker from idle list detach the worker from the pool kthread_stop() to wait for the worker's task exit free the worker struct We can find out that there is no essential work to do after kthread_stop(), which means destroy_worker() doesn't need to wait for the worker's task exit, so we can remove kthread_stop() and free the worker struct in the worker exiting path. However, put_unbound_pool() still needs to sync the all the workers' destruction before destroying the pool; otherwise, the workers may access to the invalid pool when they are exiting. So we also move the code of "detach the worker" to the exiting path and let put_unbound_pool() to sync with this code via detach_completion. The code of "detach the worker" is wrapped in a new function "worker_detach_from_pool()" although worker_detach_from_pool() is only called once (in worker_thread()) after this patch, but we need to wrap it for these reasons: 1) The code of "detach the worker" is not short enough to unfold them in worker_thread(). 2) the name of "worker_detach_from_pool()" is self-comment, and we add some comments above the function. 3) it will be shared by rescuer in later patch which allows rescuer and normal thread use the same attach/detach frameworks. The worker id is freed when detaching which happens before the worker is fully dead, but this id of the dying worker may be re-used for a new worker, so the dying worker's task name is changed to "worker/dying" to avoid two or several workers having the same name. Since "detach the worker" is moved out from destroy_worker(), destroy_worker() doesn't require manager_mutex, so the "lockdep_assert_held(&pool->manager_mutex)" in destroy_worker() is removed, and destroy_worker() is not protected by manager_mutex in put_unbound_pool(). tj: Minor description updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 73eb7fe73ae303996187fff38b1c162f1df0e9d1 Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:28 2014 +0800 workqueue: destroy_worker() should destroy idle workers only We used to have the CPU online failure path where a worker is created and then destroyed without being started. A worker was created for the CPU coming online and if the online operation failed the created worker was shut down without being started. But this behavior was changed. The first worker is created and started at the same time for the CPU coming online. It means that we had already ensured in the code that destroy_worker() destroys only idle workers and we don't want to allow it to destroy any non-idle worker in the future. Otherwise, it may be buggy and it may be extremely hard to check. We should force destroy_worker() to destroy only idle workers explicitly. Since destroy_worker() destroys only idle workers, this patch does not change any functionality. We just need to update the comments and the sanity check code. In the sanity check code, we will refuse to destroy the worker if !(worker->flags & WORKER_IDLE). If the worker entered idle which means it is already started, so we remove the check of "worker->flags & WORKER_STARTED", after this removal, WORKER_STARTED is totally unneeded, so we remove WORKER_STARTED too. In the comments for create_worker(), "Create a new worker which is bound..." is changed to "... which is attached..." due to we change the name of this behavior to attaching. tj: Minor description / comment updates. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit 9625ab1727743f6a164df26b7b1eeeced7380b42 Author: Lai Jiangshan <[email protected]> Date: Tue May 20 17:46:27 2014 +0800 workqueue: use manager lock only to protect worker_idr worker_idr is highly bound to managers and is always/only accessed in manager lock context. So we don't need pool->lock for it. Signed-off-by: Lai Jiangshan <[email protected]> Signed-off-by: Tejun Heo <[email protected]> commit e6c34ff13113c2fe24b7b9e8f1a6db1a626ec26c Author: Charles Keepax <[email protected]> Date: Mon May 19 17:35:29 2014 +0100 mfd: arizona: Correct error message for addition of main IRQ chip Signed-off-by: Charles Keepax <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit f59957974e215ad40f087768004700da2395ee6b Author: Charles Keepax <[email protected]> Date: Mon May 19 17:35:28 2014 +0100 mfd: wm8997: Add registers for high power mode Some output configurations can require a 50Mhz SYSCLK which requires DCVDD to be 1.8V. This patch adds the registers necessary for supporting this operational mode. Signed-off-by: Charles Keepax <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 9d1234aab7949b8437372214d0042e82dea96fa7 Author: Charles Keepax <[email protected]> Date: Mon May 19 17:35:27 2014 +0100 mfd: arizona: Add MICVDD to mapped regulators Currently, MICVDD only binds because it is both the regulator name and the consumer name and we will always match against the regulator name regardless of the consumer device. If the regulator was renamed using the init_data ASoC will no longer be able to locate the supply, as it will be looking on the CODEC device where as the MICVDD consumer is on the Arizona device. Add a mapping as we do for the other regulators. Signed-off-by: Charles Keepax <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit f7d10d7811af6a32070b8e053cf7a11654e7c339 Author: Krzysztof Kozlowski <[email protected]> Date: Tue May 13 12:58:40 2014 +0200 mfd: ipaq-micro: Make mfd_cell array const mfd_add_devices() expects array of struct mfd_cell to be const. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 84615cca3a34f76bd9a917ce402ce27c08e4985c Author: Jingoo Han <[email protected]> Date: Wed May 14 12:17:14 2014 +0900 mfd: ipaq-micro: Use devm_ioremap_resource() Use devm_ioremap_resource() because devm_request_and_ioremap() is obsoleted by devm_ioremap_resource(). Signed-off-by: Jingoo Han <[email protected]> Acked-by: Linus Walleij <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 24acfc632b7ba55bbc2a9305e8df31c8e41178b6 Author: Rafał Miłecki <[email protected]> Date: Tue May 20 09:27:18 2014 +0200 b43: xmit: set 5 GHz bit depending on current band PHYs other than A may also work in 5 GHz mode. Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: John W. Linville <[email protected]> commit 3cad711dbc79cf9d1bcb9f192ba681e877c18d16 Author: Oleksij Rempel <[email protected]> Date: Tue May 20 00:02:03 2014 +0200 ath9k_htc: fix build with disabled debug CC [M] drivers/net/wireless/ath/ath9k/htc_drv_txrx.o drivers/net/wireless/ath/ath9k/htc_drv_txrx.c: In function ‘ath9k_rx_prepare’: drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:1006:2: warning: passing argument 2 of ‘ath9k_htc_err_stat_rx’ from incompatible pointer type [enabled by default] ath9k_htc_err_stat_rx(priv, &rx_stats); ^ In file included from drivers/net/wireless/ath/ath9k/htc_drv_txrx.c:17:0: drivers/net/wireless/ath/ath9k/htc.h:380:20: note: expected ‘struct ath_htc_rx_status *’ but argument is of type ‘struct ath_rx_status *’ static inline void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv, Signed-off-by: Oleksij Rempel <[email protected]> Signed-off-by: John W. Linville <[email protected]> commit 773cfc508f4d64c14547ff8751b5cbd473124364 Author: Rafał Miłecki <[email protected]> Date: Mon May 19 23:18:55 2014 +0200 b43: add more devices to the bands database Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: John W. Linville <[email protected]> commit 075ca604fcc0f761c66b99a406efded7be31aa14 Author: Rafał Miłecki <[email protected]> Date: Mon May 19 23:18:54 2014 +0200 b43: move bands detection to a separated function This cleans code a bit and allows adding support for more devices. Signed-off-by: Rafał Miłecki <[email protected]> Signed-off-by: John W. Linville <[email protected]> commit 646b4269e4d0513b4c210cdd47384e8607f539fe Author: Ville Syrjälä <[email protected]> Date: Fri Apr 25 20:14:30 2014 +0300 drm/i915: Drop /** */ comments from i915_reg.h The comments in i915_reg.h aren't proper kernel-doc comments, so replace the magic /** with just /* Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Damien Lespiau <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 64b14519e5913e8d4de9f2e5d9ef59abba3ed83d Author: Jens Axboe <[email protected]> Date: Tue May 20 08:17:35 2014 -0600 htmldocs: fix bio.c location Commit f9c78b2be2ca moved bio.c from fs/ to block/, but didn't update the docbook location. Fix that up. Signed-off-by: Jens Axboe <[email protected]> commit e4443e459ccf43f2c139358400365fd6a839d40d Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:28:41 2014 +0300 drm/i915/chv: Add a bunch of pre production workarounds The following workarounds should be needed for pre-production hardware only: * WaDisablePwrmtrEvent:chv * WaSetMaskForGfxBusyness:chv * WaDisableGunitClockGating:chv * WaDisableFfDopClockGating:chv * WaDisableDopClockGating:chv Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Damien Lespiau <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 1966e59ec1075597eff4d7feb3d11536a242d0eb Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:29:04 2014 +0300 drm/i915/chv: Use RMW to toggle swing calc init The spec only tells us to set individual bits here and there. So we use RMW for most things. Do the same for the swing calc init. Eventually we should optimize things to just blast the final value in with group access whenever possible. But to do that someone needs to take a good look at what's the reset value for each registers, and possibly if the BIOS manages to frob with some of them. For now use RMW access always. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit f72df8dbe2211cf2b70e54f8e9408b889fa56974 Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:29:03 2014 +0300 drm/i915/chv: Don't do group access reads from TX lanes either Like PCS, TX group reads return 0xffffffff. So we need to target each lane separately if we want to use RMW cycles to update the registers. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 97fd4d5c81af7976b4ec9971a93bf3c361066c65 Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:29:02 2014 +0300 drm/i915/chv: Don't use PCS group access reads All PCS groups access reads return 0xffffffff, so we can't use group access for RMW cycles. Instead target each spline separately. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> [danvet: Fight conflict with misplaced ; .... ARGH!] Signed-off-by: Daniel Vetter <[email protected]> commit d2152b2524a96e6cb71097ea26c2e7c3f9e3ee12 Author: Ville Syrjälä <[email protected]> Date: Mon Apr 28 14:15:24 2014 +0300 drm/i915/chv: Set soft reset override bit for data lane resets The bits we've been setting so far only progagate the reset singal to the data lanes. To actaully force the reset signal we need to set another override bit. v2: Fix mispalced ';' (Mika) Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Ville Syrjälä <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 580d3811f4465feee9d5cacdc88b6aa6b345eff5 Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:29:00 2014 +0300 drm/i915/chv: Reset data lanes in encoder .post_disable() hook Seems like we shouldn't leave the data lane resert deasserted when the port if disabled. So propagate the reset the data lanes in the encoder .post_disable() hook. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit d752048dcd1225b481074318cf92ee751d6d475e Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:28:59 2014 +0300 drm/i915/chv: Turn off dclkp after the PLL has been disabled During the enable sequence we first enable the dclkp output to the display controller, and then enable the PLL. Do the opposite during the disable sequence. Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 949c1d43d681a168216afe35071588e8edec354c Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:28:58 2014 +0300 drm/i915/chv: Move data lane deassert to encoder pre_enable We need to pick the correct data lanes based on the port not the pipe, so move the data lane deassert into the encoder .pre_enable() hook from the chv_enable_pll(). Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit a11b07039de9e3866bf479f53f7f9db4923cd1c6 Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:28:57 2014 +0300 drm/i915/chv: Fix CHV PLL state tracking Setup the pipe config dpll state correctly for CHV. Also add a assert_pipe_disabled() to chv_disable_pll(), and program the DPLL_MD registers in chv_enable_pll(). Signed-off-by: Ville Syrjälä <[email protected]> Reviewed-by: Mika Kuoppala <[email protected]> Signed-off-by: Daniel Vetter <[email protected]> commit 9418c1f1760c91ae1a8947b0da383f3082799b19 Author: Ville Syrjälä <[email protected]> Date: Wed Apr 9 13:28:56 2014 +0300 drm/i915/chv: Register port D encoders and connectors …

Function rt2800usb_autorun_detect() passes the address of a variable allocated onto the stack to be used for DMA by the USB layer. This has been caught by my debugging-enabled kernel. This patch change things in order to allocate that variable via kmalloc, and it adjusts things to handle the kmalloc failure case, propagating the error. [ 7363.238852] ------------[ cut here ]------------ [ 7363.243529] WARNING: CPU: 1 PID: 5235 at lib/dma-debug.c:1153 check_for_stack+0xa4/0xf0() [ 7363.251759] ehci-pci 0000:00:04.1: DMA-API: device driver maps memory fromstack [addr=ffff88006b81bad4] [ 7363.261210] Modules linked in: rt2800usb(O+) rt2800lib(O) rt2x00usb(O) rt2x00lib(O) rtl818x_pci(O) rtl8187 led_class eeprom_93cx6 mac80211 cfg80211 [last unloaded: rt2x00lib] [ 7363.277143] CPU: 1 PID: 5235 Comm: systemd-udevd Tainted: G O 3.16.0-rc3-wl+ torvalds#31 [ 7363.285546] Hardware name: System manufacturer System Product Name/M3N78 PRO, BIOS ASUS M3N78 PRO ACPI BIOS Revision 1402 12/04/2009 [ 7363.297511] 0000000000000009 ffff88006b81b710 ffffffff8175dcad ffff88006b81b758 [ 7363.305062] ffff88006b81b748 ffffffff8106d372 ffff88006cf10098 ffff88006cead6a0 [ 7363.312622] ffff88006b81bad4 ffffffff81c1e7c0 ffff88006cf10098 ffff88006b81b7a8 [ 7363.320161] Call Trace: [ 7363.322661] [<ffffffff8175dcad>] dump_stack+0x4d/0x6f [ 7363.327847] [<ffffffff8106d372>] warn_slowpath_common+0x82/0xb0 [ 7363.333893] [<ffffffff8106d3e7>] warn_slowpath_fmt+0x47/0x50 [ 7363.339686] [<ffffffff813a93b4>] check_for_stack+0xa4/0xf0 [ 7363.345298] [<ffffffff813a995c>] debug_dma_map_page+0x10c/0x150 [ 7363.351367] [<ffffffff81521bd9>] usb_hcd_map_urb_for_dma+0x229/0x720 [ 7363.357890] [<ffffffff8152256d>] usb_hcd_submit_urb+0x2fd/0x930 [ 7363.363929] [<ffffffff810eac31>] ? irq_work_queue+0x71/0xd0 [ 7363.369617] [<ffffffff810ab5a7>] ? wake_up_klogd+0x37/0x50 [ 7363.375219] [<ffffffff810ab7a5>] ? console_unlock+0x1e5/0x420 [ 7363.381081] [<ffffffff810abc25>] ? vprintk_emit+0x245/0x530 [ 7363.386773] [<ffffffff81523d3c>] usb_submit_urb+0x30c/0x580 [ 7363.392462] [<ffffffff81524295>] usb_start_wait_urb+0x65/0xf0 [ 7363.398325] [<ffffffff815243ed>] usb_control_msg+0xcd/0x110 [ 7363.404014] [<ffffffffa005514d>] rt2x00usb_vendor_request+0xbd/0x170 [rt2x00usb] [ 7363.411544] [<ffffffffa0074292>] rt2800usb_autorun_detect+0x32/0x50 [rt2800usb] [ 7363.418986] [<ffffffffa0074aa1>] rt2800usb_read_eeprom+0x11/0x70 [rt2800usb] [ 7363.426168] [<ffffffffa0063ffd>] rt2800_probe_hw+0x11d/0xf90 [rt2800lib] [ 7363.432989] [<ffffffffa0074b7d>] rt2800usb_probe_hw+0xd/0x50 [rt2800usb] [ 7363.439808] [<ffffffffa00453d8>] rt2x00lib_probe_dev+0x238/0x7c0 [rt2x00lib] [ 7363.446992] [<ffffffffa00bfa48>] ? ieee80211_led_names+0xb8/0x100 [mac80211] [ 7363.454156] [<ffffffffa0056116>] rt2x00usb_probe+0x156/0x1f0 [rt2x00usb] [ 7363.460971] [<ffffffffa0074250>] rt2800usb_probe+0x10/0x20 [rt2800usb] [ 7363.467616] [<ffffffff8152799e>] usb_probe_interface+0xce/0x1c0 [ 7363.473651] [<ffffffff81480c20>] really_probe+0x70/0x240 [ 7363.479079] [<ffffffff81480f01>] __driver_attach+0xa1/0xb0 [ 7363.484682] [<ffffffff81480e60>] ? __device_attach+0x70/0x70 [ 7363.490461] [<ffffffff8147eef3>] bus_for_each_dev+0x63/0xa0 [ 7363.496146] [<ffffffff814807c9>] driver_attach+0x19/0x20 [ 7363.501570] [<ffffffff81480468>] bus_add_driver+0x178/0x220 [ 7363.507270] [<ffffffff8148151b>] driver_register+0x5b/0xe0 [ 7363.512874] [<ffffffff815271b0>] usb_register_driver+0xa0/0x170 [ 7363.518905] [<ffffffffa007a000>] ? 0xffffffffa0079fff [ 7363.524074] [<ffffffffa007a01e>] rt2800usb_driver_init+0x1e/0x20 [rt2800usb] [ 7363.531247] [<ffffffff810002d4>] do_one_initcall+0x84/0x1b0 [ 7363.536932] [<ffffffff8113aa60>] ? kfree+0xd0/0x110 [ 7363.541931] [<ffffffff8112730a>] ? __vunmap+0xaa/0xf0 [ 7363.547538] [<ffffffff810ca07e>] load_module+0x1aee/0x2040 [ 7363.553141] [<ffffffff810c6f10>] ? store_uevent+0x50/0x50 [ 7363.558676] [<ffffffff810ca66e>] SyS_init_module+0x9e/0xc0 [ 7363.564285] [<ffffffff81764012>] system_call_fastpath+0x16/0x1b [ 7363.570338] ---[ end trace 01ef5f822bea9882 ]--- Signed-off-by: Andrea Merello <[email protected]> Acked-by: Helmut Schaa <[email protected]> Signed-off-by: John W. Linville <[email protected]>

I'm getting the spew below when booting with Haswell (Xeon E5-2699 v3) CPUs and the "Cluster-on-Die" (CoD) feature enabled in the BIOS. It seems similar to the issue that some folks from AMD ran in to on their systems and addressed in this commit: 161270f ("x86/smp: Fix topology checks on AMD MCM CPUs") Both these Intel and AMD systems break an assumption which is being enforced by topology_sane(): a socket may not contain more than one NUMA node. AMD special-cased their system by looking for a cpuid flag. The Intel mode is dependent on BIOS options and I do not know of a way which it is enumerated other than the tables being parsed during the CPU bringup process. In other words, we have to trust the ACPI tables <shudder>. This detects the situation where a NUMA node occurs at a place in the middle of the "CPU" sched domains. It replaces the default topology with one that relies on the NUMA information from the firmware (SRAT table) for all levels of sched domains above the hyperthreads. This also fixes a sysfs bug. We used to freak out when we saw the "mc" group cross a node boundary, so we stopped building the MC group. MC gets exported as the 'core_siblings_list' in /sys/devices/system/cpu/cpu*/topology/ and this caused CPUs with the same 'physical_package_id' to not be listed together in 'core_siblings_list'. This violates a statement from Documentation/ABI/testing/sysfs-devices-system-cpu: core_siblings: internal kernel map of cpu#'s hardware threads within the same physical_package_id. core_siblings_list: human-readable list of the logical CPU numbers within the same physical_package_id as cpu#. The sysfs effects here cause an issue with the hwloc tool where it gets confused and thinks there are more sockets than are physically present. Before this patch, there are two packages: # cd /sys/devices/system/cpu/ # cat cpu*/topology/physical_package_id | sort | uniq -c 18 0 18 1 But 4 _sets_ of core siblings: # cat cpu*/topology/core_siblings_list | sort | uniq -c 9 0-8 9 18-26 9 27-35 9 9-17 After this set, there are only 2 sets of core siblings, which is what we expect for a 2-socket system. # cat cpu*/topology/physical_package_id | sort | uniq -c 18 0 18 1 # cat cpu*/topology/core_siblings_list | sort | uniq -c 18 0-17 18 18-35 Example spew: ... NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. #2 #3 #4 #5 torvalds#6 torvalds#7 torvalds#8 .... node #1, CPUs: torvalds#9 ------------[ cut here ]------------ WARNING: CPU: 9 PID: 0 at /home/ak/hle/linux-hle-2.6/arch/x86/kernel/smpboot.c:306 topology_sane.isra.2+0x74/0x90() sched: CPU torvalds#9's mc-sibling CPU #0 is not on the same node! [node: 1 != 0]. Ignoring dependency. Modules linked in: CPU: 9 PID: 0 Comm: swapper/9 Not tainted 3.17.0-rc1-00293-g8e01c4d-dirty torvalds#631 Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0036.R05.1407140519 07/14/2014 0000000000000009 ffff88046ddabe00 ffffffff8172e485 ffff88046ddabe48 ffff88046ddabe38 ffffffff8109691d 000000000000b001 0000000000000009 ffff88086fc12580 000000000000b020 0000000000000009 ffff88046ddabe98 Call Trace: [<ffffffff8172e485>] dump_stack+0x45/0x56 [<ffffffff8109691d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8109698c>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff81074f94>] topology_sane.isra.2+0x74/0x90 [<ffffffff8107530e>] set_cpu_sibling_map+0x31e/0x4f0 [<ffffffff8107568d>] start_secondary+0x1ad/0x240 ---[ end trace 3fe5f587a9fcde61 ]--- torvalds#10 torvalds#11 torvalds#12 torvalds#13 torvalds#14 torvalds#15 torvalds#16 torvalds#17 .... node #2, CPUs: torvalds#18 torvalds#19 torvalds#20 torvalds#21 torvalds#22 torvalds#23 torvalds#24 torvalds#25 torvalds#26 .... node #3, CPUs: torvalds#27 torvalds#28 torvalds#29 torvalds#30 torvalds#31 torvalds#32 torvalds#33 torvalds#34 torvalds#35 Signed-off-by: Dave Hansen <[email protected]> [ Added LLC domain and s/match_mc/match_die/ ] Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Rientjes <[email protected]> Cc: Igor Mammedov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Prarit Bhargava <[email protected]> Cc: Toshi Kani <[email protected]> Cc: [email protected] Cc: "H. Peter Anvin" <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>

GIT 2cf50762577a191f2f646e4034cc21f4764d90ab commit 68c7ed167ef564c83a0022f2d0fe15cbdac0c5a4 Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:04 2014 +1000 Documentation: disable vdso_test to avoid breakage with old glibc glibc versions older than 2.16 don't include sys/auxv.h which this executable uses. Since we don't have a good way to test for specific glibc versions in kbuild, just disable it for now. Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit 03979f1100aca61cf16ac7f3e464d7f11747e86b Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:04 2014 +1000 Documentation: update vDSO makefile to build portable examples Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit 13770826a9872de445703ee6c05b44f525f78513 Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:04 2014 +1000 Documentation: update .gitignore files Add some missing files to .gitignore. Push Documentation/.gitignore down into subdirectories. Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit ce0f3b2691c066255fcf25c77e929ff8cda73417 Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: support glibc versions without htole macros glibc 2.9 introduced the htole<16/32/64> macros, add them to tools/include to support older versions of glibc. Reported-by: Andrew Morton <[email protected]> Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit 77cb6d96708f5b681969ce144057ae1ebda96057 Author: Mark Brown <[email protected]> Date: Thu Sep 25 10:34:03 2014 +1000 v4l2-pci-skeleton: Only build if PCI is available Currently arm64 does not support PCI but it does support v4l2. Since the PCI skeleton driver is built unconditionally as a module with no dependency on PCI this causes build failures for arm64 allmodconfig. Fix this by defining a symbol VIDEO_PCI_SKELETON for the skeleton and conditionalising the build on that. Signed-off-by: Mark Brown <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> [added VIDEO dependencies] commit 112a45ca901ced590ff71c5fd7d717f8771717ce Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: fix misc. warnings Fix a few warnings that gcc emits during a default build. Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit b0fc375fe2c09477b5effc8e030668203d24c897 Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: make functions static to avoid prototype warnings Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit 593ed472bcea93949c72ddc45e340fee47a05aa3 Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:03 2014 +1000 Documentation: add makefiles for more targets Add a bunch of previously unbuilt source files to the Documentation build machinery. Signed-off-by: Peter Foley <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit cc67d673f252264535cef654c37c8dd621340e8b Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:02 2014 +1000 Documentation: use subdir-y to avoid unnecessary built-in.o files Change the Documentation makefiles from obj-m to subdir-y to avoid generating unnecessary built-in.o files since nothing in Documentation/ is ever linked in to vmlinux. Signed-off-by: Peter Foley <[email protected]> Acked-by: Sam Ravnborg <[email protected]> Signed-off-by: Randy Dunlap <[email protected]> commit bb69afeca345380203c89d2f19e95eca786b5a4c Author: Peter Foley <[email protected]> Date: Thu Sep 25 10:34:02 2014 +1000 Documentation: remove networking/.gitignore Remove empty networking/.gitignore Signed-off-by: Peter Foley <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Randy Dunlap <[email protected]> commit 4d96fb1ec81118c6406fe6d3670f172b2faaedf3 Author: Heiko Stuebner <[email protected]> Date: Tue Sep 23 22:42:16 2014 +0200 power: gpio-charger: do not use gpio value directly Some gpio implementations return interesting values for gpio_get_value when the value is not 0 - as seen on a imx6sl board. Therefore do not use the value returned from gpio_get_value directly but simply check for 0 or not 0. Signed-off-by: Heiko Stuebner <[email protected]> Reviewed-by: Doug Anderson <[email protected]> Tested-by: Doug Anderson <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> commit ddd26dff757d08d4eb309a28bf2a02372387e71f Author: Krzysztof Kozlowski <[email protected]> Date: Tue Sep 16 18:10:41 2014 +0200 power: max8925: Use of_get_child_by_name Use of_get_child_by_name to obtain reference to charger node instead of of_find_node_by_name which can walk outside of the parent node. Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> commit 920ac5be91bc447c5ef82f457207a169aa79c5f6 Author: Krzysztof Kozlowski <[email protected]> Date: Tue Sep 16 18:10:40 2014 +0200 power: max8925: Fix NULL ptr dereference on memory allocation failure Check the return value of devm_kzalloc() to fix possible NULL pointer dereference and properly exit the probe() on memory allocation failure. Signed-off-by: Krzysztof Kozlowski <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> commit 628ef02c56e515430dd8d8439126dd0ecb8ce8bb Author: Puthikorn Voravootivat <[email protected]> Date: Tue Sep 9 12:20:35 2014 -0700 bq27x00_battery: Add support to bq27742 Add support to bq27742 in bq27x00 driver. bq27742 register addresses are mostly mostly the same as bq27500 addresses with minor differences. Signed-off-by: Puthikorn Voravootivat <[email protected]> Reviewed-by: Gwendal Grignou <[email protected]> Reviewed-by: Rhyland Klein <[email protected]> Reviewed-by: Benson Leung <[email protected]> Signed-off-by: Sebastian Reichel <[email protected]> commit 042e1c79166b9250edd8262bea84e1703f27ad2e Author: Jin Yao <[email protected]> Date: Mon Sep 22 10:31:14 2014 -0700 Input: soc_button_array - convert to platform bus ACPI device enumeration mechanism changed a lot since 3.16-rc1. ACPI device objects with _HID will be enumerated to platform bus by default. For the existing PNP drivers that probe the PNPACPI devices, the device ids are listed explicitly in drivers/acpi/acpi_pnp.c. But ACPI folks will continue their effort on shrinking this id list by converting the PNP drivers to platform drivers, for the devices that don't belong to PNP bus in nature. Signed-off-by: Jin Yao <[email protected]> Signed-off-by: Zhang Rui <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> commit 3049683eafdbbbd7350b0e5ca02a2d8c026a3362 Author: Marcos Paulo de Souza <[email protected]> Date: Wed Sep 24 16:00:33 2014 -0700 Input: i8042 - fix Asus X450LCP touchpad detection We need to add this module to the nomux table to be able to detect the touchpad. Cc: stablevger.kernel.org Signed-off-by: Marcos Paulo de Souza <[email protected]> Signed-off-by: Dmitry Torokhov <[email protected]> commit 3f3d0463636e38a27c3000d59889b8bdc9072ce1 Author: Javier Martinez Canillas <[email protected]> Date: Thu Sep 25 08:23:26 2014 +0900 ARM: dts: Remove display timings node from exynos5250-snow Commit a3d72cad63ed ("ARM: dts: Clean up exynos5250-snow") improved the Snow DTS but the patch was rebased due conflicting changes and the merge resolution added a device node removed by commit a98c3c23868f ("ARM: dts: update display related nodes for exynos5250-snow"). This patch removes the node again to keep the DTS as before. Signed-off-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit dd12ac7fb3988be113465f499ad91b30b8aa4bdd Author: Javier Martinez Canillas <[email protected]> Date: Thu Sep 25 08:21:25 2014 +0900 ARM: dts: Fix chip select GPIO on exynos5250-smdk5250 Commit 65bbe3fee0e1 ("ARM: dts: Clean up exynos5250-smdk5250") improved the smdk5250 DTS but the patch was rebased due conflicting changes and the merge resolution added a regression of the bug fixed in commit e138d4333aa0 ("ARM: dts: fix the chip select gpios definition in the SPI nodes"). This patch fixes the issue by removing the old cs-gpio and using the generic cs-gpios property. Signed-off-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Kukjin Kim <[email protected]> commit 5c4dd348af35a6f6db97b4f2401f74c71f7f3c7d Author: Rafael J. Wysocki <[email protected]> Date: Thu Sep 25 00:53:44 2014 +0200 Revert "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" Revert commit 6efde38f0769 (PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()) that introduced a NULL pointer dereference during system resume from hibernation: BUG: unable to handle kernel NULL pointer dereference at (null) IP: [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 PGD b39c2067 PUD b39c1067 PMD 0 Oops: 0000 [#1] SMP Modules linked in: <irrelevant list of modules> CPU: 1 PID: 4898 Comm: s2disk Tainted: G C 3.17-rc5-amd64 #1 Debian 3.17~rc5-1~exp1 Hardware name: LENOVO 2776LEG/2776LEG, BIOS 6EET55WW (3.15 ) 12/19/2011 task: ffff88023155ea40 ti: ffff8800b3b14000 task.ti: ffff8800b3b14000 RIP: 0010:[<ffffffff810a8cc1>] [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 RSP: 0018:ffff8800b3b17ea8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff8800b39bab00 RCX: 0000000000000001 RDX: ffff8800b39bab10 RSI: ffff8800b39bab00 RDI: 0000000000000000 RBP: 0000000000000010 R08: 0000000000000000 R09: 0000000000000000 R10: ffff8800b39bab10 R11: 0000000000000246 R12: ffffea0000000000 R13: ffff880232f485a0 R14: ffff88023ac27cd8 R15: ffff880232927590 FS: 00007f406d83b700(0000) GS:ffff88023bc80000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 0000000000000000 CR3: 00000000b3a62000 CR4: 00000000000007e0 Stack: ffff8800b39bab00 0000000000000010 ffff880232927590 ffffffff810acb4a ffff8800b39bab00 ffffffff811a955a ffff8800b39bab10 0000000000000000 ffff88023155f098 ffffffff81a6b8c0 ffff88023155ea40 0000000000000007 Call Trace: [<ffffffff810acb4a>] ? snapshot_release+0x2a/0xb0 [<ffffffff811a955a>] ? __fput+0xca/0x1d0 [<ffffffff81080627>] ? task_work_run+0x97/0xd0 [<ffffffff81012d89>] ? do_notify_resume+0x69/0xa0 [<ffffffff8151452a>] ? int_signal+0x12/0x17 Code: 66 2e 0f 1f 84 00 00 00 00 00 66 66 66 66 90 41 54 48 8b 05 ba 62 9c 00 49 bc 00 00 00 00 00 ea ff ff 48 8b 3d a1 62 9c 00 55 53 <48> 8b 10 48 89 50 18 48 8b 52 20 48 c7 40 28 00 00 00 00 c7 40 RIP [<ffffffff810a8cc1>] swsusp_free+0x21/0x190 RSP <ffff8800b3b17ea8> CR2: 0000000000000000 ---[ end trace f02be86a1ec0cccb ]--- due to forbidden_pages_map being NULL in swsusp_free(). Fixes: 6efde38f0769 "PM / Hibernate: Iterate over set bits instead of PFNs in swsusp_free()" Reported-by: Bjørn Mork <[email protected]> Signed-off-by: Rafael J. Wysocki <[email protected]> commit a928f97152ea39c31f8ea89b60dd30a169d4ed6e Author: Peter Hüwe <[email protected]> Date: Fri Sep 12 21:09:47 2014 +0200 i2c: acpi: Fix NULL Pointer dereference If adapter->dev.parent == NULL there is a NULL pointer dereference in acpi_i2c_install_space_handler and acpi_i2c_remove_space_handler. This is present since introduction of this code: 366047515c6e "i2c: rework kernel config I2C_ACPI" or even da3c6647ee08 "I2C/ACPI: Clean up I2C ACPI code and Add CONFIG_I2C_ACPI" The adapter->dev.parent == NULL case is valid for the i2c_stub, so loading i2c_stub with ACPI_I2C_OPREGION enabled results in an oops. This is also valid at least for i2c_tiny_usb and i2c_robotfuzz_osif. Fix by checking whether it is null before calling ACPI_HANDLE. Signed-off-by: Peter Huewe <[email protected]> Acked-by: Mika Westerberg <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> commit c15d821ddb9dac9ac6b5beb75bf942f3bc3a4004 Author: Srinivas Pandruvada <[email protected]> Date: Tue Sep 23 10:35:54 2014 +0800 gpio / ACPI: Use pin index and bit length Fix code when the operation region callback is for an gpio, which is not at index 0 and for partial pins in a GPIO definition. For example: Name (GMOD, ResourceTemplate () { //3 Outputs that define the Power mode of the device GpioIo (Exclusive, PullDown, , , , "\\_SB.GPI2") {10, 11, 12} }) } If opregion callback calls is for: - Set pin 10, then address = 0 and bit length = 1 - Set pin 11, then address = 1 and bit length = 1 - Set for both pin 11 and pin 12, then address = 1, bit length = 2 This change requires updated ACPICA gpio operation handler code to send the pin index and bit length. Fixes: 473ed7be0da0 (gpio / ACPI: Add support for ACPI GPIO operation regions) Signed-off-by: Srinivas Pandruvada <[email protected]> Acked-by: Mika Westerberg <[email protected]> Acked-by: Linus Walleij <[email protected]> Cc: 3.15+ <[email protected]> # 3.15+: 75ec6e55f138 ACPICA: Update to GPIO region handler interface. Signed-off-by: Rafael J. Wysocki <[email protected]> commit 75ec6e55f1384548311a13ce4fcb39c516053314 Author: Bob Moore <[email protected]> Date: Tue Sep 23 10:35:47 2014 +0800 ACPICA: Update to GPIO region handler interface. Changes to correct several GPIO issues: 1) The update_rule in a GPIO field definition is now ignored; a read-modify-write operation is never performed for GPIO fields. (Internally, this means that the field assembly/disassembly code is completely bypassed for GPIO.) 2) The Address parameter passed to a GPIO region handler is now the bit offset of the field from a previous Connection() operator. Thus, it becomes a "Pin Number Index" into the Connection() resource descriptor. 3) The bit_width parameter passed to a GPIO region handler is now the exact bit width of the GPIO field. Thus, it can be interpreted as "number of pins". Overall, we can now say that the region handler interface to GPIO handlers is a raw "bit/pin" addressed interface, not a byte-addressed interface like the system_memory handler interface. Signed-off-by: Bob Moore <[email protected]> Signed-off-by: Lv Zheng <[email protected]> Cc: 3.15+ <[email protected]> # 3.15+ Signed-off-by: Rafael J. Wysocki <[email protected]> commit 457920817e645a7dee42c2a75c81c5ed8e12ee1c Author: Fu Zhonghui <[email protected]> Date: Wed Sep 24 22:42:26 2014 +0200 ACPI / platform / LPSS: disable async suspend/resume of LPSS devices On some systems (Asus T100 in particular) there are strict ordering dependencies between LPSS devices with respect to power management that break if they suspend/resume asynchronously. In theory it should be possible to follow those dependencies in the async suspend/resume case too (the ACPI tables tell as that the dependencies are there), but since we're missing infrastructure for that at the moment, disable async suspend/resume for all of the LPSS devices for the time being. Link: http://marc.info/?l=linux-acpi&m=141158962321905&w=2 Fixes: 8ce62f85a81f (ACPI / platform / LPSS: Enable async suspend/resume of LPSS devices) Signed-off-by: Li Aubrey <[email protected]> Signed-off-by: Fu Zhonghui <[email protected]> Cc: 3.16+ <[email protected]> # 3.16+ [ rjw: Changelog ] Signed-off-by: Rafael J. Wysocki <[email protected]> commit c7da579763f29cf45a861ad4c339aba590d8b80d Author: Johan Hedberg <[email protected]> Date: Wed Sep 24 22:41:46 2014 +0300 Bluetooth: Add retransmission effort into SCO parameter table It is expected that new parameter combinations will have the retransmission effort value different between some entries (mainly because of the new S4 configuration added by HFP 1.7), so it makes sense to move it into the table instead of having it hard coded based on the selected SCO_AIRMODE_*. Signed-off-by: Johan Hedberg <[email protected]> Signed-off-by: Marcel Holtmann <[email protected]> commit b2fc3f3c6d397d434174147eca3db1ec778195ce Author: Olof Johansson <[email protected]> Date: Wed Sep 24 11:42:38 2014 -0700 drivers/soc: ti: fix build break with modules Fixes below build break by not switching to stubs when the driver is a module: drivers/soc/ti/knav_dma.c:418:7: error: redefinition of 'knav_dma_open_channel' void *knav_dma_open_channel(struct device *dev, const char *name, ^ In file included from drivers/soc/ti/knav_dma.c:26:0: include/linux/soc/ti/knav_dma.h:165:21: note: previous definition of 'knav_dma_open_channel' was here static inline void *knav_dma_open_channel(struct device *dev, const char *name, ^ Cc: Santosh Shilimkar <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 2d9251e3501356ceb44444a8f9a393b57163dc6a Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: multi_v7_defconfig: Enable Mediatek platform Enable Mediatek platform support for multi_v7_defconfig. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit d66820853251e8a9b53125a95a773e482cd79136 Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: mediatek: Add earlyprintk support for mt6589 Enable low-level debug for Mediatek mt6589 SoC on UART0. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 7e9b2828f25ec156623da0c2156604066de5514d Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mt6589: Change compatible string for GIC This patch changes the compatible string of the GIC to the new "arm,cortex-a7-gic" which does reflect the actual hardware. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 6e9cb2633698ddadd2493b3793dbc9723f570538 Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mediatek: Add compatible property for aquaris5 Add the missing 'compatible' property to device tree root node of - mt6589-aquaris5.dts and document the new values. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit d82df11466df3e0934c7e7aa2f5e08c284e1fd9d Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mt6589-aquaris5: Add boot argument earlyprintk Add boot argument for earlyprintk to the aquaris5 device tree file. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 510f1d72e526e776243397142cbcd459dd2a2efa Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: mt6589: Fix typo in GIC unit address This changes the unit address of the gic node to it's first register area. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 995425883e4087a4bfd61d12e442089d1201fc5c Author: Matthias Brugger <[email protected]> Date: Mon Aug 18 16:58:00 2014 +0200 ARM: dts: Build dtb for Mediatek board This allows the "make dtbs" to build the aquaris5 dtb for the Mediatek SoC. Signed-off-by: Matthias Brugger <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 00e978180b1fa211c30642139149ea448ff06c55 Author: Pawel Moll <[email protected]> Date: Mon Sep 15 15:33:48 2014 +0100 bus: arm-ccn: Fix spurious warning message Because CCN's cycle counter always runs, it will generate an interrupt on overflow even if the relevant perf event was not requested, causing a spurious warning message. Fixed now by warning on only normal counter unwanted overflows. Also cleaning the overflow mask at init now, not to warn on event previously requested by firmware. Signed-off-by: Pawel Moll <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 94e57fea62020dbf6e5d0093eabcd28366e86044 Author: Francesco Ruggeri <[email protected]> Date: Wed Sep 24 10:12:41 2014 -0700 PCI: Move PCI_VENDOR_ID_VMWARE to pci_ids.h Move PCI_VENDOR_ID_VMWARE from device-specific files to pci_ids.h. It is useful to always have access to it, especially when accessing subsystem_vendor_id on emulated devices. [bhelgaas: keep pci_ids.h sorted and use lower-case hex] Signed-off-by: Francesco Ruggeri <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 17497acbdce9506fd6a75115dee4ab80c3cc5ee5 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:50 2014 -0400 blk-mq, percpu_ref: start q->mq_usage_counter in atomic mode blk-mq uses percpu_ref for its usage counter which tracks the number of in-flight commands and used to synchronously drain the queue on freeze. percpu_ref shutdown takes measureable wallclock time as it involves a sched RCU grace period. This means that draining a blk-mq takes measureable wallclock time. One would think that this shouldn't matter as queue shutdown should be a rare event which takes place asynchronously w.r.t. userland. Unfortunately, SCSI probing involves synchronously setting up and then tearing down a lot of request_queues back-to-back for non-existent LUNs. This means that SCSI probing may take above ten seconds when scsi-mq is used. [ 0.949892] scsi host0: Virtio SCSI HBA [ 1.007864] scsi 0:0:0:0: Direct-Access QEMU QEMU HARDDISK 1.1. PQ: 0 ANSI: 5 [ 1.021299] scsi 0:0:1:0: Direct-Access QEMU QEMU HARDDISK 1.1. PQ: 0 ANSI: 5 [ 1.520356] tsc: Refined TSC clocksource calibration: 2491.910 MHz <stall> [ 16.186549] sd 0:0:0:0: Attached scsi generic sg0 type 0 [ 16.190478] sd 0:0:1:0: Attached scsi generic sg1 type 0 [ 16.194099] osd: LOADED open-osd 0.2.1 [ 16.203202] sd 0:0:0:0: [sda] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB) [ 16.208478] sd 0:0:0:0: [sda] Write Protect is off [ 16.211439] sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA [ 16.218771] sd 0:0:1:0: [sdb] 31457280 512-byte logical blocks: (16.1 GB/15.0 GiB) [ 16.223264] sd 0:0:1:0: [sdb] Write Protect is off [ 16.225682] sd 0:0:1:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA This is also the reason why request_queues start in bypass mode which is ended on blk_register_queue() as shutting down a fully functional queue also involves a RCU grace period and the queues for non-existent SCSI devices never reach registration. blk-mq basically needs to do the same thing - start the mq in a degraded mode which is faster to shut down and then make it fully functional only after the queue reaches registration. percpu_ref recently grew facilities to force atomic operation until explicitly switched to percpu mode, which can be used for this purpose. This patch makes blk-mq initialize q->mq_usage_counter in atomic mode and switch it to percpu mode only once blk_register_queue() is reached. Note that this issue was previously worked around by 0a30288da1ae ("blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe") for v3.17. The temp fix was reverted in preparation of adding persistent atomic mode to percpu_ref by 9eca80461a45 ("Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe""). This patch and the prerequisite percpu_ref changes will be merged during v3.18 devel cycle. Signed-off-by: Tejun Heo <[email protected]> Reported-by: Christoph Hellwig <[email protected]> Link: http://lkml.kernel.org/g/[email protected] Fixes: add703fda981 ("blk-mq: use percpu_ref for mq usage count") Reviewed-by: Kent Overstreet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Johannes Weiner <[email protected]> commit e4de4d412fc0d07f820906dcd70ede06dad312e2 Author: Olof Johansson <[email protected]> Date: Wed Sep 24 10:34:06 2014 -0700 ARM: at91: Fix bad conflict resolution in board-dt-sama5.c Signed-off-by: Olof Johansson <[email protected]> commit 3c9703a87bdda1fef221ab0957a3ec2a2126f129 Author: Olof Johansson <[email protected]> Date: Wed Sep 24 10:32:20 2014 -0700 Revert "ARM: make arrays containing machine compatible strings const" I dropped it from next/cleanup, doing a revert on for-next instead of rebuilding the branch. This reverts commit fbce9bc876ab2c905f1f82a78bc25745e98760d9. commit 1cae13e75b7a7848c03138636d4eb8d8a5054dd5 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:50 2014 -0400 percpu_ref: make INIT_ATOMIC and switch_to_atomic() sticky Currently, a percpu_ref which is initialized with PERPCU_REF_INIT_ATOMIC or switched to atomic mode via switch_to_atomic() automatically reverts to percpu mode on the first percpu_ref_reinit(). This makes the atomic mode difficult to use for cases where a percpu_ref is used as a persistent on/off switch which may be cycled multiple times. This patch makes such atomic state sticky so that it survives through kill/reinit cycles. After this patch, atomic state is cleared only by an explicit percpu_ref_switch_to_percpu() call. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Johannes Weiner <[email protected]> commit 2aad2a86f6685c10360ec8a5a55eb9ab7059cb72 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:50 2014 -0400 percpu_ref: add PERCPU_REF_INIT_* flags With the recent addition of percpu_ref_reinit(), percpu_ref now can be used as a persistent switch which can be turned on and off repeatedly where turning off maps to killing the ref and waiting for it to drain; however, there currently isn't a way to initialize a percpu_ref in its off (killed and drained) state, which can be inconvenient for certain persistent switch use cases. Similarly, percpu_ref_switch_to_atomic/percpu() allow dynamic selection of operation mode; however, currently a newly initialized percpu_ref is always in percpu mode making it impossible to avoid the latency overhead of switching to atomic mode. This patch adds @flags to percpu_ref_init() and implements the following flags. * PERCPU_REF_INIT_ATOMIC : start ref in atomic mode * PERCPU_REF_INIT_DEAD : start ref killed and drained These flags should be able to serve the above two use cases. v2: target_core_tpg.c conversion was missing. Fixed. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Johannes Weiner <[email protected]> commit f47ad45784611297b699f3dffb6c7222b76afe64 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:49 2014 -0400 percpu_ref: decouple switching to percpu mode and reinit percpu_ref has treated the dropping of the base reference and switching to atomic mode as an integral operation; however, there's nothing inherent tying the two together. The use cases for percpu_ref have been expanding continuously. While the current init/kill/reinit/exit model can cover a lot, the coupling of kill/reinit with atomic/percpu mode switching is turning out to be too restrictive for use cases where many percpu_refs are created and destroyed back-to-back with only some of them reaching extended operation. The coupling also makes implementing always-atomic debug mode difficult. This patch separates out percpu mode switching into percpu_ref_switch_to_percpu() and reimplements percpu_ref_reinit() on top of it. * DEAD still requires ATOMIC. A dead ref can't be switched to percpu mode w/o going through reinit. v2: __percpu_ref_switch_to_percpu() was missing static. Fixed. Reported by Fengguang aka kbuild test robot. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: kbuild test robot <[email protected]> commit 490c79a65708873228cf114cf00e32c204e4e907 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:49 2014 -0400 percpu_ref: decouple switching to atomic mode and killing percpu_ref has treated the dropping of the base reference and switching to atomic mode as an integral operation; however, there's nothing inherent tying the two together. The use cases for percpu_ref have been expanding continuously. While the current init/kill/reinit/exit model can cover a lot, the coupling of kill/reinit with atomic/percpu mode switching is turning out to be too restrictive for use cases where many percpu_refs are created and destroyed back-to-back with only some of them reaching extended operation. The coupling also makes implementing always-atomic debug mode difficult. This patch separates out atomic mode switching into percpu_ref_switch_to_atomic() and reimplements percpu_ref_kill_and_confirm() on top of it. * The handling of __PERCPU_REF_ATOMIC and __PERCPU_REF_DEAD is now differentiated. Among get/put operations, percpu_ref_tryget_live() is the only one which cares about DEAD. * percpu_ref_switch_to_atomic() can be called multiple times on the same ref. This means that multiple @confirm_switch may get queued up which we can't do reliably without extra memory area. This is handled by making the later invocation synchronously wait for the completion of the previous one. This isn't particularly desirable but such synchronous waits shouldn't happen in most cases. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Christoph Hellwig <[email protected]> Cc: Johannes Weiner <[email protected]> commit 27344a9017cdaff82a167827da3001a0918afdc3 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:49 2014 -0400 percpu_ref: add PCPU_REF_DEAD percpu_ref will be restructured so that percpu/atomic mode switching and reference killing are dedoupled. In preparation, add PCPU_REF_DEAD and PCPU_REF_ATOMIC_DEAD which is OR of ATOMIC and DEAD. For now, ATOMIC and DEAD are changed together and all PCPU_REF_ATOMIC uses are converted to PCPU_REF_ATOMIC_DEAD without causing any behavior changes. percpu_ref_init() now specifies an explicit alignment when allocating the percpu counters so that the pointer has enough unused low bits to accomodate the flags. Note that one flag was fine as min alignment for percpu memory is 2 bytes but two flags are already too many for the natural alignment of unsigned longs on archs like cris and m68k. v2: The original patch had BUILD_BUG_ON() which triggers if unsigned long's alignment isn't enough to accomodate the flags, which triggered on cris and m64k. percpu_ref_init() updated to specify the required alignment explicitly. Reported by Fengguang. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> Cc: kbuild test robot <[email protected]> commit 9e804d1f58da1eca079f796347c1cf1d1df564e2 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: rename things to prepare for decoupling percpu/atomic mode switch percpu_ref will be restructured so that percpu/atomic mode switching and reference killing are dedoupled. In preparation, do the following renames. * percpu_ref->confirm_kill -> percpu_ref->confirm_switch * __PERCPU_REF_DEAD -> __PERCPU_REF_ATOMIC * __percpu_ref_alive() -> __ref_is_percpu() This patch is pure rename and doesn't introduce any functional changes. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> commit eecc16ba9a49b05dd847a317af166a6728eb56ca Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: replace pcpu_ prefix with percpu_ percpu_ref uses pcpu_ prefix for internal stuff and percpu_ for externally visible ones. This is the same convention used in the percpu allocator implementation. It works fine there but percpu_ref doesn't have too much internal-only stuff and scattered usages of pcpu_ prefix are confusing than helpful. This patch replaces all pcpu_ prefixes with percpu_. This is pure rename and there's no functional change. Note that PCPU_REF_DEAD is renamed to __PERCPU_REF_DEAD to signify that the flag is internal. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> commit 6251f9976af7656b6970a8820153f356430f5de2 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: minor code and comment updates * Some comments became stale. Updated. * percpu_ref_tryget() unnecessarily initializes @ret. Removed. * A blank line removed from percpu_ref_kill_rcu(). * Explicit function name in a WARN format string replaced with __func__. * WARN_ON() in percpu_ref_reinit() converted to WARN_ON_ONCE(). Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> commit a2237370194484ee6aeeff04b617e4b14d178966 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:31:48 2014 -0400 percpu_ref: relocate percpu_ref_reinit() percpu_ref is gonna go through restructuring. Move percpu_ref_reinit() after percpu_ref_kill_and_confirm(). This will make later changes easier to follow and result in cleaner organization. Signed-off-by: Tejun Heo <[email protected]> Reviewed-by: Kent Overstreet <[email protected]> commit 1aafa57340c6d906a285d7823e0fe68696c1ae07 Author: Wei Xu <[email protected]> Date: Wed Sep 24 17:07:48 2014 +0800 ARM: hisi: Fix platmcpm compilation when ARMv6 is selected When compiling with "ARCH=arm" and "allmodconfig", with commit: 9cdc99919a95e8b54c1998b65bb1bfdabd47d27b [2/7] ARM: hisi: enable MCPM implementation we will get: /tmp/cc6DjYjT.s: Assembler messages: /tmp/cc6DjYjT.s:63: Error: selected processor does not support ARM mode `ubfx r1,r0,#8,#8' /tmp/cc6DjYjT.s:761: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:762: Error: selected processor does not support ARM mode `dsb ' /tmp/cc6DjYjT.s:769: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:775: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:776: Error: selected processor does not support ARM mode `dsb ' /tmp/cc6DjYjT.s:795: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:801: Error: selected processor does not support ARM mode `isb ' /tmp/cc6DjYjT.s:802: Error: selected processor does not support ARM mode `dsb ' Fix platmcpm compilation when ARMv6 is selected. Signed-off-by: Wei Xu <[email protected]> Signed-off-by: Olof Johansson <[email protected]> commit 495aa2e1facebf770224c33aae2a01541889e54e Author: Liviu Dudau <[email protected]> Date: Tue Sep 23 20:01:14 2014 +0100 arm64: Add architectural support for PCI Use the generic PCI domain and OF functions to provide support for PCI on arm64. [bhelgaas: Change comments to use generic PCI, not just PCIe. Nothing at this level is PCIe-specific.] Signed-off-by: Liviu Dudau <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Catalin Marinas <[email protected]> commit b766eafe68281a12169f9eb8c06fd80d2e7897d7 Author: Liviu Dudau <[email protected]> Date: Tue Sep 23 20:01:13 2014 +0100 PCI: Add pci_remap_iospace() to map bus I/O resources Add pci_remap_iospace() to map bus I/O resources into the CPU virtual address space. Architectures with special needs may provide their own version, but most should be able to use this one. This function is useful for PCI host bridge drivers that need to map the PCI I/O resources into virtual memory space. [bhelgaas: phys_addr description, drop temporary "err" variable] Signed-off-by: Liviu Dudau <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Rob Herring <[email protected]> Reviewed-by: Catalin Marinas <[email protected]> CC: Arnd Bergmann <[email protected]> commit 5a4f662d44116022e3378b32a1a79b718e110096 Author: Liviu Dudau <[email protected]> Date: Tue Sep 23 20:01:12 2014 +0100 PCI: Assign unassigned bus resources in pci_scan_root_bus() If the firmware has not assigned all the bus resources and we are not just probing the PCI buses, it makes sense to assign the unassigned resources in pci_scan_root_bus(). Signed-off-by: Liviu Dudau <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> CC: Arnd Bergmann <[email protected]> CC: Jason Gunthorpe <[email protected]> CC: Rob Herring <[email protected]> commit 07428b62addb624a3b51b6e8a213fec9b97dbfd0 Author: Liviu Dudau <[email protected]> Date: Wed Sep 24 11:27:33 2014 -0600 of/pci: Add support for parsing PCI host bridge resources from DT Provide a function to parse the PCI DT ranges that can be used to create a pci_host_bridge structure together with its associated bus. Signed-off-by: Liviu Dudau <[email protected]> [make io_base parameter optional] Signed-off-by: Robert Richter <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> CC: Arnd Bergmann <[email protected]> CC: Grant Likely <[email protected]> CC: Rob Herring <[email protected]> CC: Catalin Marinas <[email protected]> commit 9eca80461a45177e456219a9cd944c27675d6512 Author: Tejun Heo <[email protected]> Date: Wed Sep 24 13:07:33 2014 -0400 Revert "blk-mq, percpu_ref: implement a kludge for SCSI blk-mq stall during probe" This reverts commit 0a30288da1aec914e158c2d7a3482a85f632750f, which was a temporary fix for SCSI blk-mq stall issue. The following patches will fix the issue properly by introducing atomic mode to percpu_ref. Signed-off-by: Tejun Heo <[email protected]> Cc: Kent Overstreet <[email protected]> Cc: Jens Axboe <[email protected]> Cc: Christoph Hellwig <[email protected]> commit 83417b202bf5aa2cd82637aa81aa9f065cfe5f21 Author: Wolfram Sang <[email protected]> Date: Mon Sep 22 19:41:00 2014 +0200 i2c: move acpi code back into the core Commit 5d98e61d337c ("I2C/ACPI: Add i2c ACPI operation region support") renamed the i2c-core module. This may cause regressions for distributions, so put the ACPI code back into the core. Reported-by: Jean Delvare <[email protected]> Signed-off-by: Wolfram Sang <[email protected]> Cc: Mika Westerberg <[email protected]> Cc: Lan Tianyu <[email protected]> commit 964356938fcd3c0001a786f55b9f0a0fbe47656a Author: Andreas Werner <[email protected]> Date: Wed Aug 27 19:53:06 2014 +0200 hwmon: (menf21bmc) Introduce MEN14F021P00 BMC HWMON driver Added driver to support the 14F021P00 BMC Hardware Monitoring. The BMC is a Board Management Controller including monitoring of the board voltages. Signed-off-by: Andreas Werner <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 38433639af915deeb0b0e28462dd740ce57b72fd Author: Andreas Werner <[email protected]> Date: Wed Aug 27 19:52:36 2014 +0200 leds: leds-menf21bmc: Introduce MEN 14F021P00 BMC LED driver Added driver to support the 14F021P00 BMC LEDs. The BMC is a Board Management Controller including four LEDs which can be switched on and off. Signed-off-by: Andreas Werner <[email protected]> Acked-by: Bryan Wu <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 5033263992eece84e19946d2cab940c86ec862ba Author: Andreas Werner <[email protected]> Date: Wed Aug 27 19:52:06 2014 +0200 watchdog: menf21bmc_wdt: Introduce MEN 14F021P00 BMC Watchdog driver Added driver to support the 14F021P00 BMC Watchdog. The BMC is a Board Management Controller including watchdog functionality. Signed-off-by: Andreas Werner <[email protected]> Reviewed-by: Guenter Roeck <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit d6cc1f5824cbca392d099f3bb0c441efd9e54de9 Author: Krzysztof Kozlowski <[email protected]> Date: Fri Sep 12 08:54:00 2014 +0200 Documentation: charger: max14577: Document exported sysfs entry Document the 'fast charge timer' setting exported by max14577 driver through sysfs entry. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 8d70d68d7a1b3082ca5a3808be18103a83ae348d Author: Krzysztof Kozlowski <[email protected]> Date: Fri Sep 12 08:53:59 2014 +0200 devicetree: mfd: max14577: Add device tree bindings document Add document describing device tree bindings for MAX14577 MFD drivers: MFD core, extcon, regulator and charger. Both MAX14577 and MAX77836 chipsets are documented. Signed-off-by: Krzysztof Kozlowski <[email protected]> Reviewed-by: Tomasz Figa <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 2c33e9296202cd11bf2e2f801b69ffba0953748a Author: Krzysztof Kozlowski <[email protected]> Date: Fri Sep 12 08:53:58 2014 +0200 power: max17040: Add ID for MAX77836 Fuel Gauge block MAX77836 has the same Fuel Gauge as MAX17040/17048. The max17040 driver can be safely re-used. The patch adds MAX77836 device to the array of i2c_device_id. Additionally it removes the id associated with MAX17040 device as the value is not used. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit e30110e9c96f48aea01abc3e6dfadb369cbafec3 Author: Krzysztof Kozlowski <[email protected]> Date: Fri Sep 12 08:53:57 2014 +0200 charger: max14577: Configure battery-dependent settings from DTS and sysfs Remove hard-coded values for: - Fast Charge current, - End Of Charge current, - Fast Charge timer, - Overvoltage Protection Threshold, - Battery Constant Voltage, and use DTS or sysfs to configure them. This allows using the max14577 charger driver with different batteries. Now the charger driver requires valid configuration data from DTS. In case of wrong configuration data it fails during probe. The fast charge timer is configured through sysfs entry. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit b8f139f68f2099b7f8b4ef470a1e53210e3aa025 Author: Krzysztof Kozlowski <[email protected]> Date: Fri Sep 12 08:53:56 2014 +0200 regulator/mfd: max14577: Export symbols for calculating charger current This patch prepares for changing the max14577 charger driver to allow configuring battery-dependent settings from DTS. The patch moves from regulator driver to MFD core driver and exports: - function for calculating register value for charger's current; - table of limits for chargers (MAX14577, MAX77836). Previously they were used only by the max14577 regulator driver. In next patch the charger driver will use them as well. Exporting them will reduce unnecessary code duplication. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Mark Brown <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 3682a8ee87f9107253e51733f42da10160ce41e3 Author: Krzysztof Kozlowski <[email protected]> Date: Fri Sep 12 08:53:55 2014 +0200 charger: max14577: Add support for MAX77836 charger Add support for MAX77836 charger to the max14577 driver. The MAX77836 charger is almost the same as 14577 model except: - No dead-battery detection; - Support for special charger (like in MAX77693); - Support for DX over-voltage protection (like in MAX77693); - Lower values of charging current (two times lower current for slow/fast charge, much lower EOC current); - Slightly different values in ChgTyp field of STATUS2 register. On MAX14577 0x6 is reserved and 0x7 dead battery. On the MAX77836 the 0x6 means special charger and 0x7 is reserved. Regardless of these differences the driver maps them to one enum max14577_muic_charger_type. Signed-off-by: Krzysztof Kozlowski <[email protected]> Acked-by: Andrew Morton <[email protected]> Signed-off-by: Lee Jones <[email protected]> commit 2f4096e311ef0922c42cbf7bc5df44efb3aff716 Author: Quentin Lambert <[email protected]> Date: Sun Sep 7 20:04:28 2014 +0200 PCI: Remove assignment from complicated "if" conditions The modifications effectively change the value of len_tmp in the case where the first condition is not met. Signed-off-by: Quentin Lambert <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 79e50e72986c9fcb06d707ce587cfd24fefa33e3 Author: Quentin Lambert <[email protected]> Date: Sun Sep 7 20:03:32 2014 +0200 PCI: Remove assignment from "if" conditions The following Coccinelle semantic patch was used to find and correct cases of assignments in "if" conditions: @@ expression var, expr; statement S; @@ + var = expr; if( - (var = expr) + var ) S Signed-off-by: Quentin Lambert <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 656f978f9af9d8d77436e8159f51f7aa1e673309 Author: Quentin Lambert <[email protected]> Date: Sun Sep 7 20:02:47 2014 +0200 PCI: Remove unnecessary curly braces Remove curly braces in simple "if" cases. No functional change. Signed-off-by: Quentin Lambert <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit e0c524049f8279d00d2fbd4748b03234a2726fdd Author: Santosh Shilimkar <[email protected]> Date: Thu Jul 10 11:30:08 2014 -0400 MAINTAINERS: Add Keystone Multicore Navigator drivers entry Signed-off-by: Santosh Shilimkar <[email protected]> commit 88139ed030583557751e279968e13e892ae10825 Author: Santosh Shilimkar <[email protected]> Date: Sun Mar 30 17:29:04 2014 -0400 soc: ti: add Keystone Navigator DMA support The Keystone Navigator DMA driver sets up the dma channels and flows for the QMSS(Queue Manager SubSystem) who triggers the actual data movements across clients using destination queues. Every client modules like NETCP(Network Coprocessor), SRIO(Serial Rapid IO) and CRYPTO Engines has its own instance of packet dma hardware. QMSS has also an internal packet DMA module which is used as an infrastructure DMA with zero copy. Initially this driver was proposed as DMA engine driver but since the hardware is not typical DMA engine and hence doesn't comply with typical DMA engine driver needs, that approach was naked. Link to that discussion - https://lkml.org/lkml/2014/3/18/340 As aligned, now we pair the Navigator DMA with its companion Navigator QMSS subsystem driver. Cc: Greg Kroah-Hartman <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Olof Johansson <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Cc: Mark Rutland <[email protected]> Signed-off-by: Sandeep Nair <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 8172296d8717be1951da4bb4feb2700a60e8cdde Author: Santosh Shilimkar <[email protected]> Date: Sun Mar 30 17:29:04 2014 -0400 Documentation: dt: soc: add Keystone Navigator DMA bindings The Keystone Navigator DMA driver sets up the dma channels and flows for the QMSS(Queue Manager SubSystem) who triggers the actual data movements across clients using destination queues. Every client modules like NETCP(Network Coprocessor), SRIO(Serial Rapid IO) and CRYPTO Engines has its own instance of packet dma hardware. QMSS has also an internal packet DMA module which is used as an infrastructure DMA with zero copy. Initially this driver was proposed as DMA engine driver but since the hardware is not typical DMA engine and hence doesn't comply with typical DMA engine driver needs, that approach was naked. Link to that discussion - https://lkml.org/lkml/2014/3/18/340 As aligned, now we pair the Navigator DMA with its companion Navigator QMSS subsystem driver. Cc: Greg Kroah-Hartman <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Olof Johansson <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Cc: Mark Rutland <[email protected]> Signed-off-by: Sandeep Nair <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 41f93af900a20d1a0a358b522b5129c89677e9dc Author: Sandeep Nair <[email protected]> Date: Fri Feb 28 10:47:50 2014 -0500 soc: ti: add Keystone Navigator QMSS driver The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of the main hardware sub system which forms the backbone of the Keystone Multi-core Navigator. QMSS consist of queue managers, packed-data structure processors(PDSP), linking RAM, descriptor pools and infrastructure Packet DMA. The Queue Manager is a hardware module that is responsible for accelerating management of the packet queues. Packets are queued/de-queued by writing or reading descriptor address to a particular memory mapped location. The PDSPs perform QMSS related functions like accumulation, QoS, or event management. Linking RAM registers are used to link the descriptors which are stored in descriptor RAM. Descriptor RAM is configurable as internal or external memory. The QMSS driver manages the PDSP setups, linking RAM regions, queue pool management (allocation, push, pop and notify) and descriptor pool management. The specifics on the device tree bindings for QMSS can be found in: Documentation/devicetree/bindings/soc/keystone-navigator-qmss.txt Cc: Greg Kroah-Hartman <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Olof Johansson <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Cc: Mark Rutland <[email protected]> Signed-off-by: Sandeep Nair <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit a4dfb8c41043dd6c2b9defbe846c44389c4b6f02 Author: Sandeep Nair <[email protected]> Date: Fri Feb 28 10:47:50 2014 -0500 Documentation: dt: soc: add Keystone Navigator QMSS bindings The QMSS (Queue Manager Sub System) found on Keystone SOCs is one of the main hardware sub system which forms the backbone of the Keystone Multi-core Navigator. QMSS consist of queue managers, packed-data structure processors(PDSP), linking RAM, descriptor pools and infrastructure Packet DMA. The Queue Manager is a hardware module that is responsible for accelerating management of the packet queues. Packets are queued/de-queued by writing or reading descriptor address to a particular memory mapped location. The PDSPs perform QMSS related functions like accumulation, QoS, or event management. Linking RAM registers are used to link the descriptors which are stored in descriptor RAM. Descriptor RAM is configurable as internal or external memory. Cc: Greg Kroah-Hartman <[email protected]> Cc: Kumar Gala <[email protected]> Cc: Olof Johansson <[email protected]> Cc: Arnd Bergmann <[email protected]> Cc: Grant Likely <[email protected]> Cc: Rob Herring <[email protected]> Cc: Mark Rutland <[email protected]> Signed-off-by: Sandeep Nair <[email protected]> Signed-off-by: Santosh Shilimkar <[email protected]> commit 382a9c9adc1cd540f5b714b65db315fc1c0b553d Author: Quentin Lambert <[email protected]> Date: Sun Sep 7 20:02:04 2014 +0200 PCI: Add space before open parenthesis Add space before open parenthesis as is conventional. No functional change. [bhelgaas: fix a few more in ibmphp, shpchp] Signed-off-by: Quentin Lambert <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit fe6ce32189136370b3d236d1c32ab812b93cd0d8 Author: Yijing Wang <[email protected]> Date: Wed Sep 24 11:09:59 2014 +0800 PCI/MSI: Rename __read_msi_msg() to read_msi_msg() Rename __read_msi_msg() to read_msi_msg(). No functional change. Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit c2eb2dc3461e522d6452e1f74e36194633d4db0d Author: Yijing Wang <[email protected]> Date: Wed Sep 24 11:09:53 2014 +0800 PCI/MSI: Remove unused read_msi_msg() Now no one uses read_msi_msg(), so remove it. No functional change. Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 11c013fd8afbc7c6b2e15608ed5fc2c249552998 Author: Yijing Wang <[email protected]> Date: Wed Sep 24 11:09:45 2014 +0800 MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg() rtas_setup_msi_irqs() already has the struct msi_desc pointer required by __read_msi_msg(), so call it directly instead of having read_msi_msg() look it up from the IRQ. No functional change. [bhelgaas: changelog] Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Michael Ellerman <[email protected]> CC: Benjamin Herrenschmidt <[email protected]> CC: [email protected] commit eeeda4cd06e828b331b15741a204ff9f5874d28d Author: Ben Hutchings <[email protected]> Date: Wed Sep 24 13:30:12 2014 +0100 x86/relocs: Make per_cpu_load_addr static per_cpu_load_addr is only used for 64-bit relocations, but is declared in both configurations of relocs.c - with different types. This has undefined behaviour in general. GNU ld is documented to use the larger size in this case, but other tools may differ and some warn about this. References: https://bugs.debian.org/748577 Reported-by: Michael Tautschnig <[email protected]> Signed-off-by: Ben Hutchings <[email protected]> Cc: [email protected] Cc: Linus Torvalds <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> commit 212be3b2320bcf33eff648bc4e1f0edbf4d90acf Author: Oleg Nesterov <[email protected]> Date: Sun Sep 21 20:42:32 2014 +0200 x86/lib/Makefile: Remove the unnecessary "+= thunk_64.o" Trivial. We have "lib-y += thunk_$(BITS).o" at the start, no need to add thunk_64.o if !CONFIG_X86_32. Signed-off-by: Oleg Nesterov <[email protected]> Acked-by: Andy Lutomirski <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Linus Torvalds <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> commit 0ad6e3c5199be12c9745da8f8b9e3c9f8066c235 Author: Oleg Nesterov <[email protected]> Date: Sun Sep 21 20:41:53 2014 +0200 x86: Speed up ___preempt_schedule*() by using THUNK helpers ___preempt_schedule() does SAVE_ALL/RESTORE_ALL but this is suboptimal, we do not need to save/restore the callee-saved register. And we already have arch/x86/lib/thunk_*.S which implements the similar asm wrappers, so it makes sense to redefine ___preempt_schedule() as "THUNK ..." and remove preempt.S altogether. Signed-off-by: Oleg Nesterov <[email protected]> Reviewed-by: Andy Lutomirski <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Linus Torvalds <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> commit 03bd4e1f7265548832a76e7919a81f3137c44fd1 Author: Wanpeng Li <[email protected]> Date: Wed Sep 24 16:38:05 2014 +0800 sched: Fix unreleased llc_shared_mask bit during CPU hotplug The following bug can be triggered by hot adding and removing a large number of xen domain0's vcpus repeatedly: BUG: unable to handle kernel NULL pointer dereference at 0000000000000004 IP: [..] find_busiest_group PGD 5a9d5067 PUD 13067 PMD 0 Oops: 0000 [#3] SMP [...] Call Trace: load_balance ? _raw_spin_unlock_irqrestore idle_balance __schedule schedule schedule_timeout ? lock_timer_base schedule_timeout_uninterruptible msleep lock_device_hotplug_sysfs online_store dev_attr_store sysfs_write_file vfs_write SyS_write system_call_fastpath Last level cache shared mask is built during CPU up and the build_sched_domain() routine takes advantage of it to setup the sched domain CPU topology. However, llc_shared_mask is not released during CPU disable, which leads to an invalid sched domainCPU topology. This patch fix it by releasing the llc_shared_mask correctly during CPU disable. Yasuaki also reported that this can happen on real hardware: https://lkml.org/lkml/2014/7/22/1018 His case is here: == Here is an example on my system. My system has 4 sockets and each socket has 15 cores and HT is enabled. In this case, each core of sockes is numbered as follows: | CPU# Socket#0 | 0-14 , 60-74 Socket#1 | 15-29, 75-89 Socket#2 | 30-44, 90-104 Socket#3 | 45-59, 105-119 Then llc_shared_mask of CPU#30 has 0x3fff80000001fffc0000000. It means that last level cache of Socket#2 is shared with CPU#30-44 and 90-104. When hot-removing socket#2 and #3, each core of sockets is numbered as follows: | CPU# Socket#0 | 0-14 , 60-74 Socket#1 | 15-29, 75-89 But llc_shared_mask is not cleared. So llc_shared_mask of CPU#30 remains having 0x3fff80000001fffc0000000. After that, when hot-adding socket#2 and #3, each core of sockets is numbered as follows: | CPU# Socket#0 | 0-14 , 60-74 Socket#1 | 15-29, 75-89 Socket#2 | 30-59 Socket#3 | 90-119 Then llc_shared_mask of CPU#30 becomes 0x3fff8000fffffffc0000000. It means that last level cache of Socket#2 is shared with CPU#30-59 and 90-104. So the mask has the wrong value. Signed-off-by: Wanpeng Li <[email protected]> Tested-by: Linn Crosetto <[email protected]> Reviewed-by: Borislav Petkov <[email protected]> Reviewed-by: Toshi Kani <[email protected]> Reviewed-by: Yasuaki Ishimatsu <[email protected]> Cc: <[email protected]> Cc: David Rientjes <[email protected]> Cc: Prarit Bhargava <[email protected]> Cc: Steven Rostedt <[email protected]> Cc: Peter Zijlstra <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> commit 24832b4de315ad00e5430a53772750dfcf18514d Author: Minghuan Lian <[email protected]> Date: Tue Sep 23 22:28:59 2014 +0800 PCI: designware: Add get_msi_data() to pcie_host_ops Add a struct pcie_host_ops .get_msi_data() method for platforms to return their special MSI message data. Signed-off-by: Minghuan Lian <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Mohit KUMAR <[email protected]> commit ee1b5b165c0a2f04d2107e634e51f05d0eb107de Author: Bryan O'Donoghue <[email protected]> Date: Wed Sep 24 00:26:24 2014 +0100 x86/intel/quark: Switch off CR4.PGE so TLB flush uses CR3 instead Quark x1000 advertises PGE via the standard CPUID method PGE bits exist in Quark X1000's PTEs. In order to flush an individual PTE it is necessary to reload CR3 irrespective of the PTE.PGE bit. See Quark Core_DevMan_001.pdf section 6.4.11 This bug was fixed in Galileo kernels, unfixed vanilla kernels are expected to crash and burn on this platform. Signed-off-by: Bryan O'Donoghue <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> commit 450e344e421b9f555261a2d97952d9e71d4cb082 Author: Minghuan Lian <[email protected]> Date: Tue Sep 23 22:28:58 2014 +0800 PCI: designware: Rename get_msi_data() to get_msi_addr() The struct pcie_host_ops .get_msi_data() method returns the MSI message address. To accurately express its purpose, rename it to .get_msi_addr(). Signed-off-by: Minghuan Lian <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Mohit KUMAR <[email protected]> commit 0c61ea77cceafd1134225099961c2df0866b500f Author: Minghuan Lian <Minghuan.Lian@fre…

GIT 6fe676b243e5a0cb4cc4d9a4b094de8db0cdbf74 commit e500f488c27659bb6f5d313b336621f3daa67701 Author: Fabian Frederick <[email protected]> Date: Wed Oct 1 06:52:06 2014 +0200 net/dccp/ccid.c: add __init to ccid_activate ccid_activate is only called by __init ccid_initialize_builtins in same module. Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 0c5b8a46294d43fc63788839d3c18de0961ec1bc Author: Fabian Frederick <[email protected]> Date: Wed Oct 1 06:48:03 2014 +0200 net/dccp/proto.c: add __init to dccp_mib_init dccp_mib_init is only called by __init dccp_init in same module. Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 082f58ac4a48d3f5cb4597232cb2ac6823a96f43 Author: Quinn Tran <[email protected]> Date: Thu Sep 25 06:22:28 2014 -0400 target: Fix queue full status NULL pointer for SCF_TRANSPORT_TASK_SENSE During temporary resource starvation at lower transport layer, command is placed on queue full retry path, which expose this problem. The TCM queue full handling of SCF_TRANSPORT_TASK_SENSE currently sends the same cmd twice to lower layer. The 1st time led to cmd normal free path. The 2nd time cause Null pointer access. This regression bug was originally introduced v3.1-rc code in the following commit: commit e057f53308a5f071556ee80586b99ee755bf07f5 Author: Christoph Hellwig <[email protected]> Date: Mon Oct 17 13:56:41 2011 -0400 target: remove the transport_qf_callback se_cmd callback Signed-off-by: Quinn Tran <[email protected]> Signed-off-by: Saurav Kashyap <[email protected]> Cc: <[email protected]> # v3.1+ Signed-off-by: Nicholas Bellinger <[email protected]> commit db3a99b9921f27fe71ca8c0f218ee810e0e7fb69 Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:19 2014 -0400 qla_target: rearrange struct qla_tgt_prm On most (non-x86) 64bit platforms this will remove 8 padding bytes from the structure. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit f9b6721a9cef94908467abf7a2cacbd15a7d23cb Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:18 2014 -0400 qla_target: improve qlt_unmap_sg() Remove the inline attribute. Modern compilers ignore it and the function has grown beyond where inline made sense anyway. Remove the BUG_ON(!cmd->sg_mapped), and instead return if sg_mapped is not set. Every caller is doing this check, so we might as well have it in one place instead of four. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit 55a9066fffd2f533e7ed434b072469ef09d6c476 Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:15 2014 -0400 qla_target: make some global functions static Also removes the declarations from the header - including two declarations without function definitions or callers. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit c57010420654aca179c500f61e86315a337244ca Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:14 2014 -0400 qla_target: remove unused parameter Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit f81ccb489a7a641c1bed41b49cf8d72c199c68d5 Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:13 2014 -0400 target: simplify core_tmr_abort_task list_for_each_entry_safe is necessary if list objects are deleted from the list while traversing it. Not the case here, so we can use the base list_for_each_entry variant. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit 33940d09937276cd3c81f2874faf43e37c2db0e2 Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:12 2014 -0400 target: encapsulate smp_mb__after_atomic() The target code has a rather generous helping of smp_mb__after_atomic() throughout the code base. Most atomic operations were followed by one and none were preceded by smp_mb__before_atomic(), nor accompanied by a comment explaining the need for a barrier. Instead of trying to prove for every case whether or not it is needed, this patch introduces atomic_inc_mb() and atomic_dec_mb(), which explicitly include the memory barriers before and after the atomic operation. For now they are defined in a target header, although they could be of general use. Most of the existing atomic/mb combinations were replaced by the new helpers. In a few cases the atomic was sandwiched in spin_lock/spin_unlock and I simply removed the barrier. I suspect that in most cases the correct conversion would have been to drop the barrier. I also suspect that a few cases exist where a) the barrier was necessary and b) a second barrier before the atomic would have been necessary and got added by this patch. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit 74ed7e62289dc6d388996d7c8f89c2e7e95b9657 Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:11 2014 -0400 target: remove some smp_mb__after_atomic()s atomic_inc_return() already does an implicit memory barrier and the second case was moved from an atomic to a plain flag operation. If a barrier were needed in the second case, it would have to be smp_mb(), not a variant optimized away for x86 and other architectures. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit 8f83269048628d7b139dacbfc6cc97befcbdd2e9 Author: Joern Engel <[email protected]> Date: Tue Sep 16 16:23:10 2014 -0400 target: simplify core_tmr_release_req() And while at it, do minimal coding style fixes in the area. Signed-off-by: Joern Engel <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit 9c7d6154bc4b9dfefd580490cdca5f7c72321464 Author: Andy Grover <[email protected]> Date: Mon Jun 30 16:39:46 2014 -0700 target: Remove core_tpg_release_virtual_lun0 function Simple and just called from one place. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Andy Grover <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit cd9d7cbaec8b622eee4edcd8bf481c4047f74915 Author: Andy Grover <[email protected]> Date: Mon Jun 30 16:39:44 2014 -0700 target: Change core_dev_del_lun to take a se_lun instead of unpacked_lun Remove core_tpg_pre_dellun entirely, since we don't need to get/check a pointer we already have. Nothing else can return an error, so core_dev_del_lun can return void. Rename core_tpg_post_dellun to remove_lun - a clearer name, now that pre_dellun is gone. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Andy Grover <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit cc83881f2c57caaf4b14adaffa65595640a59661 Author: Andy Grover <[email protected]> Date: Mon Jun 30 16:39:43 2014 -0700 target: core_tpg_post_dellun can return void Nothing in it can raise an error. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Andy Grover <[email protected]> Signed-off-by: Nicholas Bellinger <[email protected]> commit 49be17235c0acd96f2ff0fe282867fe3a83f554c Author: hayeswang <[email protected]> Date: Wed Oct 1 13:25:11 2014 +0800 r8152: disable power cut for RTL8153 The firmware would be clear when the power cut is enabled for RTL8153. Signed-off-by: Hayes Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 204c8704128943bf3f8b605f4b40bdc2b6bd89dc Author: hayeswang <[email protected]> Date: Wed Oct 1 13:25:10 2014 +0800 r8152: remove clearing bp The xxx_clear_bp() is used to halt the firmware. It only necessary for updating the new firmware. Besides, depend on the version of the current firmware, it may have problem to halt the firmware directly. Finally, halt the firmware would let the firmware code useless, and the bugs which are fixed by the firmware would occur. Signed-off-by: Hayes Wang <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit aa55c8e2f7a395dfc9e67fc6637321e19ce9bfe1 Author: Masahiro Yamada <[email protected]> Date: Tue Sep 9 20:02:24 2014 +0900 kbuild: handle C=... and M=... after entering into build directory This commit avoids processing C=... and M=... twice when O=... is also given. Besides, we can also remove KBUILD_EXTMOD="$(KBUILD_EXTMOD)" in the sub-make target. Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: Peter Foley <[email protected]> Signed-off-by: Michal Marek <[email protected]> commit 745a254322c898dadf019342cd7140f7867d2d0f Author: Masahiro Yamada <[email protected]> Date: Tue Sep 9 20:02:23 2014 +0900 kbuild: use $(Q) for sub-make target Since commit 066b7ed9558087a7957a1128f27d7a3462ff117f (kbuild: Do not print the build directory with make -s), "Q" is defined above the sub-make target. This commit takes advantage of that and replaces "$(if $(KBUILD_VERBOSE:1=),@)" with "$(Q)". Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: Peter Foley <[email protected]> Signed-off-by: Michal Marek <[email protected]> commit 7ff525712acf9325e9acdb27bbc93049ea2e850c Author: Masahiro Yamada <[email protected]> Date: Tue Sep 9 20:02:22 2014 +0900 kbuild: fake the "Entering directory ..." message more simply Commit c2e28dc975ea87feed84415006ae143424912ac7 (kbuild: Print the name of the build directory) added a gimmick to show the "Entering directory ...". Instead of echoing the hard-coded message (that is, we need to know the exact message), moving --no-print-directory would be easier. Signed-off-by: Masahiro Yamada <[email protected]> Acked-by: Peter Foley <[email protected]> Signed-off-by: Michal Marek <[email protected]> commit 1b0ecb28b0cc216535ce6477d39aa610c3ff68a1 Author: Vlad Yasevich <[email protected]> Date: Tue Sep 30 19:39:37 2014 -0400 bnx2: Correctly receive full sized 802.1ad fragmes This driver, similar to tg3, has a check that will cause full sized 802.1ad frames to be dropped. The frame will be larger then the standard mtu due to the presense of vlan header that has not been stripped. The driver should not drop this frame and should process it just like it does for 802.1q. CC: Sony Chacko <[email protected]> CC: [email protected] Signed-off-by: Vladislav Yasevich <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 7d3083ee36b51e425b6abd76778a2046906b0fd3 Author: Vlad Yasevich <[email protected]> Date: Tue Sep 30 19:39:36 2014 -0400 tg3: Allow for recieve of full-size 8021AD frames When receiving a vlan-tagged frame that still contains a vlan header, the length of the packet will be greater then MTU+ETH_HLEN since it will account of the extra vlan header. TG3 checks this for the case for 802.1Q, but not for 802.1ad. As a result, full sized 802.1ad frames get dropped by the card. Add a check for 802.1ad protocol when receving full sized frames. Suggested-by: Prashant Sreedharan <[email protected]> CC: Prashant Sreedharan <[email protected]> CC: Michael Chan <[email protected]> Signed-off-by: Vladislav Yasevich <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 1e918876853aa85435e0f17fd8b4a92dcfff53d6 Author: Florian Westphal <[email protected]> Date: Wed Oct 1 13:38:03 2014 +0200 r8169: add support for Byte Queue Limits tested on RTL8168d/8111d model using 'super_netperf 40' with TCP/UDP_STREAM. Output of while true; do for n in inflight limit; do echo -n $n\ ; cat $n; done; sleep 1; done during netperf run, 100mbit peer: inflight 0 limit 3028 inflight 6056 limit 4542 [ trimmed output for brevity, no limit/inflight changes during test steady-state ] limit 4542 inflight 3028 limit 6122 inflight 0 limit 6122 [ changed cable to 1gbit peer, restart netperf ] inflight 37850 limit 36336 inflight 33308 limit 31794 inflight 33308 limit 31794 inflight 27252 limit 25738 [ again, no changes during test ] inflight 27252 limit 25738 inflight 0 limit 28766 [ change cable to 100mbit peer, restart netperf ] limit 28766 inflight 27370 limit 28766 inflight 4542 limit 5990 inflight 6056 limit 4542 [ .. ] inflight 6056 limit 4542 inflight 0 [end of test] Cc: Francois Romieu <[email protected]> Cc: Hayes Wang <[email protected]> Signed-off-by: Florian Westphal <[email protected]> Acked-by: Eric Dumazet <[email protected]> Acked-by: Tom Herbert <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit d0bf4a9e92b9a93ffeeacbd7b6cb83e0ee3dc2ef Author: Eric Dumazet <[email protected]> Date: Mon Sep 29 13:29:15 2014 -0700 net: cleanup and document skb fclone layout Lets use a proper structure to clearly document and implement skb fast clones. Then, we might experiment more easily alternative layouts. This patch adds a new skb_fclone_busy() helper, used by tcp and xfrm, to stop leaking of implementation details. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 0f1ca65ee50df042051e8fa3a14f73b0c71d45b9 Author: Arianna Avanzini <[email protected]> Date: Fri Aug 22 13:20:02 2014 +0200 xen, blkfront: factor out flush-related checks from do_blkif_request() This commit factors out some checks related to the request insertion path, which can be done in an function instead of by itself. Reviewed-by: David Vrabel <[email protected]> Signed-off-by: Arianna Avanzini <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> commit 61cecca865280bef4f8a9748d0a9afa5df351ac2 Author: Roger Pau Monné <[email protected]> Date: Mon Sep 15 11:55:27 2014 +0200 xen-blkback: fix leak on grant map error path Fix leaking a page when a grant mapping has failed. CC: [email protected] Signed-off-by: Roger Pau Monné <[email protected]> Reported-and-Tested-by: Tao Chen <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> commit 12ea729645ace01e08f9654df155622898d3aae6 Author: Vitaly Kuznetsov <[email protected]> Date: Mon Sep 8 15:21:33 2014 +0200 xen/blkback: unmap all persistent grants when frontend gets disconnected blkback does not unmap persistent grants when frontend goes to Closed state (e.g. when blkfront module is being removed). This leads to the following in guest's dmesg: [ 343.243825] xen:grant_table: WARNING: g.e. 0x445 still in use! [ 343.243825] xen:grant_table: WARNING: g.e. 0x42a still in use! ... When load module -> use device -> unload module sequence is performed multiple times it is possible to hit BUG() condition in blkfront module: [ 343.243825] kernel BUG at drivers/block/xen-blkfront.c:954! [ 343.243825] invalid opcode: 0000 [#1] SMP [ 343.243825] Modules linked in: xen_blkfront(-) ata_generic pata_acpi [last unloaded: xen_blkfront] ... [ 343.243825] Call Trace: [ 343.243825] [<ffffffff814111ef>] ? unregister_xenbus_watch+0x16f/0x1e0 [ 343.243825] [<ffffffffa0016fbf>] blkfront_remove+0x3f/0x140 [xen_blkfront] ... [ 343.243825] RIP [<ffffffffa0016aae>] blkif_free+0x34e/0x360 [xen_blkfront] [ 343.243825] RSP <ffff88001eb8fdc0> We don't need to keep these grants if we're disconnecting as frontend might already forgot about them. Solve the issue by moving xen_blkbk_free_caches() call from xen_blkif_free() to xen_blkif_disconnect(). Now we can see the following: [ 928.590893] xen:grant_table: WARNING: g.e. 0x587 still in use! [ 928.591861] xen:grant_table: WARNING: g.e. 0x372 still in use! ... [ 929.592146] xen:grant_table: freeing g.e. 0x587 [ 929.597174] xen:grant_table: freeing g.e. 0x372 ... Backend does not keep persistent grants any more, reconnect works fine. CC: [email protected] Signed-off-by: Vitaly Kuznetsov <[email protected]> Signed-off-by: Konrad Rzeszutek Wilk <[email protected]> commit b248230c34970a6c1c17c591d63b464e8d2cfc33 Author: Yuchung Cheng <[email protected]> Date: Mon Sep 29 13:20:38 2014 -0700 tcp: abort orphan sockets stalling on zero window probes Currently we have two different policies for orphan sockets that repeatedly stall on zero window ACKs. If a socket gets a zero window ACK when it is transmitting data, the RTO is used to probe the window. The socket is aborted after roughly tcp_orphan_retries() retries (as in tcp_write_timeout()). But if the socket was idle when it received the zero window ACK, and later wants to send more data, we use the probe timer to probe the window. If the receiver always returns zero window ACKs, icsk_probes keeps getting reset in tcp_ack() and the orphan socket can stall forever until the system reaches the orphan limit (as commented in tcp_probe_timer()). This opens up a simple attack to create lots of hanging orphan sockets to burn the memory and the CPU, as demonstrated in the recent netdev post "TCP connection will hang in FIN_WAIT1 after closing if zero window is advertised." http://www.spinics.net/lists/netdev/msg296539.html This patch follows the design in RTO-based probe: we abort an orphan socket stalling on zero window when the probe timer reaches both the maximum backoff and the maximum RTO. For example, an 100ms RTT connection will timeout after roughly 153 seconds (0.3 + 0.6 + .... + 76.8) if the receiver keeps the window shut. If the orphan socket passes this check, but the system already has too many orphans (as in tcp_out_of_resources()), we still abort it but we'll also send an RST packet as the connection may still be active. In addition, we change TCP_USER_TIMEOUT to cover (life or dead) sockets stalled on zero-window probes. This changes the semantics of TCP_USER_TIMEOUT slightly because it previously only applies when the socket has pending transmission. Signed-off-by: Yuchung Cheng <[email protected]> Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: Neal Cardwell <[email protected]> Reported-by: Andrey Dmitrov <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 3edfe0030bb7a82dab2a30a29ea6e1800e600c4b Author: Helge Deller <[email protected]> Date: Wed Oct 1 22:11:01 2014 +0200 parisc: Fix serial console for machines with serial port on superio chip Fix the serial console on machines where the serial port is located on the SuperIO chip. Signed-off-by: Helge Deller <[email protected]> Cc: Peter Hurley <[email protected]> commit baf378126b08474de2e2428b16e62a69df0339d9 Author: Michael Opdenacker <[email protected]> Date: Wed Oct 1 14:07:39 2014 -0600 rsxx: Remove deprecated IRQF_DISABLED This removes the use of the IRQF_DISABLED flag from drivers/block/rsxx/core.c It's a NOOP since 2.6.35 and it will be removed one day. Signed-off-by: Michael Opdenacker <[email protected]> Acked-by Philip Kelleher <[email protected]> Signed-off-by: Jens Axboe <[email protected]> commit cb57659a15c6c0576493cc8a10474ce7ffd44eb3 Author: Fabian Frederick <[email protected]> Date: Wed Oct 1 19:30:03 2014 +0200 cipso: add __init to cipso_v4_cache_init cipso_v4_cache_init is only called by __init cipso_v4_init Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 57a02c39c1c20ed03a86f8014c11a8c18b94cac3 Author: Fabian Frederick <[email protected]> Date: Wed Oct 1 19:18:57 2014 +0200 inet: frags: add __init to ip4_frags_ctl_register ip4_frags_ctl_register is only called by __init ipfrag_init Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 47d7a88c188f06ffaea3a539f84fe10cb4e77787 Author: Fabian Frederick <[email protected]> Date: Wed Oct 1 18:27:50 2014 +0200 tcp: add __init to tcp_init_mem tcp_init_mem is only called by __init tcp_init. Signed-off-by: Fabian Frederick <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit ee7a1beb9759c94aea67dd887faf5e447a5c6710 Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:21 2014 +0800 r8169:call "rtl8168_driver_start" "rtl8168_driver_stop" only when hardware dash function is enabled These two functions are used to inform dash firmware that driver is been brought up or brought down. So call these two functions only when hardware dash function is enabled. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 2a9b4d9670e71784896d95c41c9b0acd50db1dbb Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:20 2014 +0800 r8169:modify the behavior of function "rtl8168_oob_notify" In function "rtl8168_oob_notify", using function "rtl_eri_write" to access eri register 0xe8, instead of using MAC register "ERIDR" and "ERIAR" to access it. For using function "rtl_eri_write" in function "rtl8168_oob_notify", need to move down "rtl8168_oob_notify" related functions under the function "rtl_eri_write". Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 2f8c040ce6791ef0477e6d59768ee3d5fd0df0fd Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:19 2014 +0800 r8169:change the name of function "r8168dp_check_dash" to "r8168_check_dash" DASH function not only RTL8168DP can support, but also RTL8168EP. So change the name of function "r8168dp_check_dash" to "r8168_check_dash". Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 706123d06c18b55da5e9da21e2d138ee789bf8f4 Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:18 2014 +0800 r8169:change the name of function"rtl_w1w0_eri" Change the name of function "rtl_w1w0_eri" to "rtl_w0w1_eri". In this function, the local variable "val" is "write zeros then write ones". Please see below code. (val & ~m) | p In this patch, change the function name from "xx_w1w0_xx" to "xx_w0w1_xx". The changed function name is more suitable for it's behavior. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 7656442824f6174b56a19c664fe560972df56ad4 Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:17 2014 +0800 r8169:for function "rtl_w1w0_phy" change its name and behavior Change function name from "rtl_w1w0_phy" to "rtl_w0w1_phy". And its behavior from "write ones then write zeros" to "write zeros then write ones". In Realtek internal driver, bitwise operations are almost "write zeros then write ones". For easy to port hardware parameters from Realtek internal driver to Linux kernal driver "r8169", we would like to change this function's behavior and its name. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit ac85bcdbc0ffd3903d6db4abcd769ecacf98605b Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:16 2014 +0800 r8169:add more chips to support magic packet v2 For RTL8168F RTL8168FB RTL8168G RTL8168GU RTL8411 RTL8411B RTL8402 RTL8107E, the magic packet enable bit is changed to eri 0xde bit0. In this patch, change magic packet enable bit of these chips to eri 0xde bit0. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 89cceb2729c752e6ff9b3bc8650a70f29884f116 Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:15 2014 +0800 r8169:add support more chips to get mac address from backup mac address register RTL8168FB RTL8168G RTL8168GU RTL8411 RTL8411B RTL8106EUS RTL8402 can support get mac address from backup mac address register. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 42fde7371035144037844f41bd16950de9912bdb Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:14 2014 +0800 r8169:add disable/enable RTL8411B pll function RTL8411B can support disable/enable pll function. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit b8e5e6ad7115befef13a4493f1d2b8e438abc058 Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:13 2014 +0800 r8169:add disable/enable RTL8168G pll function RTL8168G also can disable/enable pll function. Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 05b9687bb3606190304f08c2e4cd63de8717e30b Author: Chun-Hao Lin <[email protected]> Date: Wed Oct 1 23:17:12 2014 +0800 r8169:change uppercase number to lowercase number Signed-off-by: Chun-Hao Lin <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit a29c9c43bb633a9965909cd548879fee4aa789a4 Author: David L Stevens <[email protected]> Date: Wed Oct 1 11:05:27 2014 -0400 sunvnet: fix potential NULL pointer dereference One of the error cases for vnet_start_xmit()'s "out_dropped" label is port == NULL, so only mess with port->clean_timer when port is not NULL. Signed-off-by: David L Stevens <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit e506d405ac7d34d03996c97ac68aa2ac010be64a Author: Thierry Reding <[email protected]> Date: Wed Oct 1 13:59:00 2014 +0200 net: dsa: Fix build warning for !PM_SLEEP The dsa_switch_suspend() and dsa_switch_resume() functions are only used when PM_SLEEP is enabled, so they need #ifdef CONFIG_PM_SLEEP protection to avoid a compiler warning. Signed-off-by: Thierry Reding <[email protected]> Acked-by: Florian Fainelli <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 84ac1f2ca41f5888cc995944c073a5220f3ed549 Author: Tanmay Inamdar <[email protected]> Date: Fri Sep 26 14:08:25 2014 -0700 arm64: dts: Add APM X-Gene PCIe device tree nodes Add the device tree nodes for APM X-Gene PCIe host controller and PCIe clock interface. Since X-Gene SOC supports maximum 5 ports, 5 dts nodes are added. Signed-off-by: Tanmay Inamdar <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 2896e4418b17363f211e084471b589e3c06a7248 Author: Bjorn Helgaas <[email protected]> Date: Wed Oct 1 13:01:35 2014 -0600 PCI: xgene: Add APM X-Gene PCIe driver Add the AppliedMicro X-Gene SOC PCIe host controller driver. The X-Gene PCIe controller supports up to 8 lanes and GEN3 speed. The X-Gene SOC supports up to 5 PCIe ports. [bhelgaas: folded in MAINTAINERS and bindings updates] Tested-by: Ming Lei <[email protected]> Tested-by: Dann Frazier <[email protected]> Signed-off-by: Tanmay Inamdar <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Liviu Dudau <[email protected]> (driver) commit 3c87dcbfb36ce6d3d9087f0163c02ba5690d9a85 Author: Subbaraya Sundeep Bhatta <[email protected]> Date: Wed Oct 1 11:01:17 2014 +0200 net: ll_temac: Remove unnecessary ether_setup after alloc_etherdev Calling ether_setup is redundant since alloc_etherdev calls it. Signed-off-by: Subbaraya Sundeep Bhatta <[email protected]> Signed-off-by: Michal Simek <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 8493ecca74a7b4a66e19676de1a0f14194179941 Author: Benjamin Tissoires <[email protected]> Date: Wed Oct 1 11:59:47 2014 -0400 HID: uHID: fix excepted report type When uhid_get_report() or uhid_set_report() are called, they emit on the char device a UHID_GET_REPORT or UHID_SET_REPORT message. Then, the protocol says that the user space asnwers with UHID_GET_REPORT_REPLY or UHID_SET_REPORT_REPLY. Unfortunatelly, the current code waits for an event of type UHID_GET_REPORT or UHID_SET_REPORT instead of the reply one. Add 1 to UHID_GET_REPORT or UHID_SET_REPORT to actually wait for the reply, and validate the reply. Signed-off-by: Benjamin Tissoires <[email protected]> Reviewed-by: David Herrmann <[email protected]> Signed-off-by: Jiri Kosina <[email protected]> commit c8df6ac9452e8f47a6f660993c526d13e858a6f3 Author: Lucas Stach <[email protected]> Date: Tue Sep 30 18:36:27 2014 +0200 PCI: designware: Remove open-coded bitmap operations Replace them by using the standard kernel bitmap ops. No functional change, but makes the code a lot cleaner. Signed-off-by: Lucas Stach <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Reviewed-by: Pratyush Anand <[email protected]> Acked-by: Jingoo Han <[email protected]> commit 2199f0608864cf4e8c93d37842a5ee50c8d79843 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: sort writes Write requests are sorted in a red-black tree structure and are submitted in the sorted order. In theory the sorting should be performed by the underlying disk scheduler, however, in practice the disk scheduler only accepts and sorts a finite number of requests. To allow the sorting of all requests, dm-crypt needs to implement its own own sorting. The overhead associated with rbtree-based sorting is considered negligible so it is not used conditionally. Even on SSD sorting can be beneficial since in-order request dispatch promotes lower latency IO completion to the upper layers. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 648fee35be4c75667aa18bf513f7e7e65c01640b Author: Mikulas Patocka <[email protected]> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: offload writes to thread Submitting write bios directly in the encryption thread caused serious performance degradation. On a multiprocessor machine, encryption requests finish in a different order than they were submitted. Consequently, write requests would be submitted in a different order and it could cause severe performance degradation. Move the submission of write requests to a separate thread so that the requests can be sorted before submitting. But this commit improves dm-crypt performance even without having dm-crypt perform request sorting (in particular it enables IO schedulers like CFQ to sort more effectively). Note: it is required that a previous commit ("dm crypt: don't allocate pages for a partial request") be applied before applying this patch. Otherwise, this commit could introduce a crash. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 4a0d7e0464226eee625a5b77484c339334453882 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 28 15:51:55 2014 -0400 dm crypt: use unbound workqueue for request processing Use unbound workqueue so that work is automatically balanced between available CPUs. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 72bfc40ca3b393cb0bc6b5e2ce364e6c6ce0f390 Author: Mikulas Patocka <[email protected]> Date: Thu May 29 14:18:12 2014 -0400 dm crypt: remove io_pending refcount member from dm_crypt_io Commit "dm crypt: don't allocate pages for a partial request" changed the code to allocate all pages for one request. There is always just one pending request, so the io_pending refcount may be removed. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 42196fec8945cc84c032b7f59deaffee82036245 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: remove unused io_pool and _crypt_io_pool The previous commits ("dm crypt: use per-bio data") and ("dm crypt: don't allocate pages for a partial request") stopped using the io_pool slab mempool and backing _crypt_io_pool kmem cache. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit ebfda24b1e1bf483accdb900f8625151d8f01383 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: avoid deadlock in mempools Fix a theoretical deadlock introduced in the previous commit ("dm crypt: don't allocate pages for a partial request"). The function crypt_alloc_buffer may be called concurrently. If we allocate from the mempool concurrently, there is a possibility of deadlock. For example, if we have mempool of 256 pages, two processes, each wanting 256, pages allocate from the mempool concurrently, it may deadlock in a situation where both processes have allocated 128 pages and the mempool is exhausted. In order to avoid such a scenario, we allocate the pages under a mutex. In order to not degrade performance with excessive locking, we try non-blocking allocations without a mutex first and if it fails, we fallback to a blocking allocation with a mutex. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit b9ea7cb3fb237078be400522880932008c630fb7 Author: Mikulas Patocka <[email protected]> Date: Fri Mar 28 15:51:56 2014 -0400 dm crypt: don't allocate pages for a partial request Change crypt_alloc_buffer so that it only ever allocates pages for a full request. This change is a prerequisite for the commit "dm crypt: offload writes to thread". Which implies this change is effectively required for the upcoming cpu parallelization changes. But this change simplifies the dm-crypt code at the expense of reduced throughput in low memory conditions (where allocation for a partial request is most useful). This change also enables the removal of the io_pending refcount. Note: the next commit ("dm-crypt: avoid deadlock in mempools") is needed to fix a theoretical deadlock. Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 117cd3e12232afea97dd31489fbde8888ad22b3e Author: Heinz Mauelshagen <[email protected]> Date: Wed Sep 24 17:47:19 2014 +0200 dm raid: add discard support for RAID levels 4, 5 and 6 In case of RAID levels 4, 5 and 6 we have to verify each RAID members' ability to zero data on discards to avoid stripe data corruption -- if discard_zeroes_data is not set for each RAID member discard support must be disabled. Also add an 'ignore_discard' table argument to the target in order to ignore discard processing completely on a RAID array, hence not passing down discards to MD personalities. This 'ignore_discard' control provides the ability to: - prohibit discards in case of _potential_ data corruptions in RAID4/5/6 (e.g. if ability to zero data on discard is flawed in a RAID member) - avoid discard processing overhead Signed-off-by: Heinz Mauelshagen <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> commit 04c308f43a90a9b3b84c344b324d6af29288da05 Author: Mikulas Patocka <[email protected]> Date: Wed Oct 1 13:29:48 2014 -0400 dm bufio: when done scanning return from __scan immediately When __scan frees the required number of buffer entries that the shrinker requested (nr_to_scan becomes zero) it must return. Before this fix the __scan code exited only the inner loop and continued in the outer loop. Also, move dm_bufio_cond_resched to __scan's inner loop, so that iterating the bufio client's lru lists doesn't result in scheduling latency. Reported-by: Joe Thornber <[email protected]> Signed-off-by: Mikulas Patocka <[email protected]> Signed-off-by: Mike Snitzer <[email protected]> Cc: [email protected] # 3.2+ commit 5ec094057c7df5ff80f5e7fe282f47ad205fb976 Author: Bjorn Helgaas <[email protected]> Date: Tue Sep 23 14:38:28 2014 -0600 PCI/MSI: Remove unnecessary temporary variable The only use of "status" is to hold a value which is immediately returned, so just return and remove the variable directly. Signed-off-by: Bjorn Helgaas <[email protected]> commit 56b72b40957947f7c08771f030102351d4c906df Author: Yijing Wang <[email protected]> Date: Mon Sep 29 18:35:16 2014 -0600 PCI/MSI: Use __write_msi_msg() instead of write_msi_msg() default_restore_msi_irq() already has the struct msi_desc pointer required by __write_msi_msg(), so call it directly instead of having write_msi_msg() look it up from the IRQ. No functional change. [bhelgaas: split into separate patch] Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 1e8f4cc82eded0c3c97ef6e2f119782e42deda35 Author: Yijing Wang <[email protected]> Date: Wed Sep 24 11:09:45 2014 +0800 MSI/powerpc: Use __read_msi_msg() instead of read_msi_msg() rtas_setup_msi_irqs() already has the struct msi_desc pointer required by __read_msi_msg(), so call it directly instead of having read_msi_msg() look it up from the IRQ. No functional change. [bhelgaas: changelog] Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Michael Ellerman <[email protected]> CC: Benjamin Herrenschmidt <[email protected]> CC: [email protected] commit 2b260085e466c345e78f23b1c9ad1d123d509ef8 Author: Yijing Wang <[email protected]> Date: Tue Sep 23 13:27:25 2014 +0800 PCI/MSI: Use __get_cached_msi_msg() instead of get_cached_msi_msg() Both callers of get_cached_msi_msg() start with a struct irq_data pointer, look up the corresponding IRQ number, and pass it to get_cached_msi_msg(), which then uses irq_get_irq_data() to look up the struct irq_data again to call __get_cached_msi_msg(). Since we already have the struct irq_data, call __get_cached_msi_msg() directly and skip the lookup work done by get_cached_msi_msg(). No functional change. [bhelgaas: changelog] Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> CC: Tony Luck <[email protected]> CC: [email protected] commit 468ff15a3ab98ed7153c29c68229ffb97f15a251 Author: Yijing Wang <[email protected]> Date: Tue Sep 23 13:27:24 2014 +0800 PCI/MSI: Add "msi_bus" sysfs MSI/MSI-X control for endpoints The "msi_bus" sysfs file for bridges sets a bus flag to allow or disallow future driver requests for MSI or MSI-X. Previously, the sysfs file existed for endpoints but did nothing. Add "msi_bus" support for endpoints, so an administrator can prevent the use of MSI and MSI-X for individual devices. Note that as for bridges, these changes only affect future driver requests for MSI or MSI-X, so drivers may need to be reloaded. Add documentation for the "msi_bus" sysfs file. [bhelgaas: changelog, comments, add "subordinate", add endpoint printk, rework bus_flags setting, make bus_flags printk unconditional] Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 48c3c38f003c25d50a09d3da558667c5ecd530aa Author: Yijing Wang <[email protected]> Date: Tue Sep 23 11:02:42 2014 -0600 PCI/MSI: Remove "pos" from the struct msi_desc msi_attrib "msi_attrib.pos" is only used for MSI (not MSI-X), and we already cache the MSI capability offset in "dev->msi_cap". Remove "pos" from the struct msi_attrib and use "dev->msi_cap" directly. [bhelgaas: changelog, fix whitespace] Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 81052769e48609525c452d8f078a5786b673e178 Author: Yijing Wang <[email protected]> Date: Tue Sep 23 13:27:22 2014 +0800 PCI/MSI: Remove unused kobject from struct msi_desc After commit 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not kobjects"), the kobject in struct msi_desc is unused. Remove the unused struct kobject from struct msi_desc. [bhelgaas: changelog] Fixes: 1c51b50c2995 ("PCI/MSI: Export MSI mode using attributes, not kobjects") Signed-off-by: Yijing Wang <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Greg Kroah-Hartman <[email protected]> commit a06cd74cefe754341f747ddc4cf7b0058fa9bff8 Author: Alexander Gordeev <[email protected]> Date: Tue Sep 23 12:45:58 2014 -0600 PCI/MSI: Rename pci_msi_check_device() to pci_msi_supported() Rename pci_msi_check_device() to pci_msi_supported() for clarity. Note that pci_msi_supported() returns true if MSI/MSI-X is supported, so code like: if (pci_msi_supported(...)) reads naturally. [bhelgaas: changelog, split to separate patch, reverse sense] Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 27e20603c54ba633ed259284d006275f13c9f95b Author: Alexander Gordeev <[email protected]> Date: Tue Sep 23 14:25:11 2014 -0600 PCI/MSI: Move D0 check into pci_msi_check_device() Both callers of pci_msi_check_device() check that the device is in D0 state, so move the check from the callers into pci_msi_check_device() itself. In pci_enable_msi_range(), note that pci_msi_check_device() never returns a positive value any more, so the loop that called it until it returns zero or negative is no longer necessary. [bhelgaas: changelog, split to separate patch] Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit ad975ebad4c3ce8dcc7d0bb4db26ea5aca4cfc99 Author: Alexander Gordeev <[email protected]> Date: Tue Sep 23 12:39:54 2014 -0600 PCI/MSI: Remove arch_msi_check_device() No architectures implement arch_msi_check_device() or the struct msi_chip .check_device() method, so remove them. Remove the "type" parameter to pci_msi_check_device() because it was only used to call arch_msi_check_device() and is no longer needed. [bhelgaas: changelog, split to separate patch] Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> commit 3930115e0dd67f61b3b1882c7a34d0baeff1bb4c Author: Alexander Gordeev <[email protected]> Date: Sun Sep 7 20:57:54 2014 +0200 irqchip: armada-370-xp: Remove arch_msi_check_device() Move MSI checks from arch_msi_check_device() to arch_setup_msi_irqs(). This makes the code more compact and allows removing arch_msi_check_device() from generic MSI code. Tested-by: Thomas Petazzoni <[email protected]> Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Jason Cooper <[email protected]> CC: Thomas Gleixner <[email protected]> commit 6b2fd7efeb888fa781c1f767de6c36497ac1596b Author: Alexander Gordeev <[email protected]> Date: Sun Sep 7 20:57:53 2014 +0200 PCI/MSI/PPC: Remove arch_msi_check_device() Move MSI checks from arch_msi_check_device() to arch_setup_msi_irqs(). This makes the code more compact and allows removing arch_msi_check_device() from generic MSI code. Signed-off-by: Alexander Gordeev <[email protected]> Signed-off-by: Bjorn Helgaas <[email protected]> Acked-by: Michael Ellerman <[email protected]> commit 977104ece1568f2e2ad3f5fd8e55bd640e8ab55a Author: Mark Charlebois <[email protected]> Date: Thu Sep 4 14:16:17 2014 -0700 arm: LLVMLinux: Use global stack register variable for percpu Using global current_stack_pointer works on both clang and gcc. current_stack_pointer is an unsigned long and needs to be cast as a pointer to dereference. KernelVersion: 3.17.0-rc6 Signed-off-by: Mark Charlebois <[email protected]> Signed-off-by: Behan Webster <[email protected]> commit a35dc594542b29935cd3a92e53233ad4ba4e622f Author: Behan Webster <[email protected]> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer in unwind_backtrace Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <[email protected]> Reviewed-by: Mark Charlebois <[email protected]> Reviewed-by: Jan-Simon Möller <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Nicolas Pitre <[email protected]> commit 5c5da6724d8e1767405a3f4b611451a11ece99e2 Author: Behan Webster <[email protected]> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Calculate current_thread_info from current_stack_pointer Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <[email protected]> Reviewed-by: Mark Charlebois <[email protected]> Reviewed-by: Jan-Simon Möller <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Nicolas Pitre <[email protected]> commit f2b6d8c6c56c9a164a2d885ba34a09d613c959c9 Author: Behan Webster <[email protected]> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer in save_stack_trace_tsk Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <[email protected]> Reviewed-by: Mark Charlebois <[email protected]> Reviewed-by: Jan-Simon Möller <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Nicolas Pitre <[email protected]> commit 40802b84566a3d9731a8fea43b144301d9ac450d Author: Behan Webster <[email protected]> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer for return_address Use the global current_stack_pointer to get the value of the stack pointer. This change supports being able to compile the kernel with both gcc and Clang. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <[email protected]> Reviewed-by: Mark Charlebois <[email protected]> Reviewed-by: Jan-Simon Möller <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Nicolas Pitre <[email protected]> commit d80ced5236764b8c4ffda5545d5b357cf88c77c1 Author: Behan Webster <[email protected]> Date: Tue Sep 3 22:27:27 2013 -0400 arm: LLVMLinux: Use current_stack_pointer to calculate pt_regs address Use the global current_stack_pointer to calculate the end of the stack for current_pt_regs() KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <[email protected]> Reviewed-by: Mark Charlebois <[email protected]> Reviewed-by: Jan-Simon Möller <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Nicolas Pitre <[email protected]> commit 9d0d6994806b36891453beb1e94b6253f853af61 Author: Behan Webster <[email protected]> Date: Tue Sep 3 22:27:26 2013 -0400 arm: LLVMLinux: Add global named register current_stack_pointer for ARM Define a global named register for current_stack_pointer. The use of this new variable guarantees that both gcc and clang can access this register in C code. KernelVersion: 3.17.0-rc6 Signed-off-by: Behan Webster <[email protected]> Reviewed-by: Jan-Simon Möller <[email protected]> Reviewed-by: Mark Charlebois <[email protected]> Acked-by: Will Deacon <[email protected]> Acked-by: Nicolas Pitre <[email protected]> commit 2c804d0f8fc7799981d9fdd8c88653541b28c1a7 Author: Eric Dumazet <[email protected]> Date: Tue Sep 30 22:12:05 2014 -0700 ipv4: mentions skb_gro_postpull_rcsum() in inet_gro_receive() Proper CHECKSUM_COMPLETE support needs to adjust skb->csum when we remove one header. Its done using skb_gro_postpull_rcsum() In the case of IPv4, we know that the adjustment is not really needed, because the checksum over IPv4 header is 0. Lets add a comment to ease code comprehension and avoid copy/paste errors. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit eb51bbaf8dedf142a54a7ff58514a29b40d515bb Author: Stephen Rothwell <[email protected]> Date: Wed Oct 1 17:00:49 2014 +1000 fm10k: using vmalloc requires including linux/vmalloc.h Signed-off-by: Stephen Rothwell <[email protected]> Acked-by: Jeff Kirsher <[email protected]> Signed-off-by: David S. Miller <[email protected]> commit 078efae00ffc76381c3248006e9cf0988163488f Author: Anish Bhatt <[email protected]> Date: Mon Sep 15 17:44:18 2014 -0700 [SCSI] cxgb4i: avoid holding mutex in interrupt context cxgbi_inet6addr_handler() can be called in interrupt context, so use rcu protected list while finding netdev. This is observed as a scheduling in atomic oops when running over ipv6. Fixes: fc8d0590d914 ("libcxgbi: Add ipv6 api to driver") Fixes: 759a0cc5a3e1 ("cxgb4i: Add ipv6 code to driver, call into libcxgbi ipv6 api") Signed-off-by: Anish Bhatt <[email protected]> Signed-off-by: Karen Xie <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> Signed-off-by: James Bottomley <[email protected]> commit 34549ab09e62db9703811c6ed4715f2ffa1fd7fb Author: Jeff Layton <[email protected]> Date: Wed Oct 1 08:05:22 2014 -0400 nfsd: eliminate "to_delegation" define We now have cb_to_delegation and to_delegation, which do the same thing and are defined separately in different .c files. Move the cb_to_delegation definition into a header file and eliminate the redundant to_delegation definition. Reviewed-by: Christoph Hellwig <[email protected]> Signed-off-by: Jeff Layton <[email protected]> commit 4a0efdc933680d908de11712a774a2c9492c3d5a Author: Hannes Reinecke <[email protected]> Date: Wed Oct 1 14:32:31 2014 +0200 block: misplaced rq_complete tracepoint The rq_complete tracepoint was never issued for empty requests, causing the resulting blktrace information to never show any completion for those request. Signed-off-by: Hannes Reinecke <[email protected]> Acked-by: Tejun Heo <[email protected]> Signed-off-by: Jens Axboe <[email protected]> commit fc2021fb9baf9ed375c8161b40b68e120e75c60e Author: Michael Opdenacker <[email protected]> Date: Wed Oct 1 12:07:07 2014 +0200 block: hd: remove deprecated IRQF_DISABLED This patch removes the use of the IRQF_DISABLED flag from drivers/block/hd.c It's a NOOP since 2.6.35 and it will be removed one day. This also removes a related comment which is obsolete too. Signed-off-by: Michael Opdenacker <[email protected]> Signed-off-by: Jens Axboe <[email protected]> commit 19aeb5a65f1a6504fc665466c188241e7393d66f Author: Bob Peterson <[email protected]> Date: Mon Sep 29 08:52:04 2014 -0400 GFS2: Make rename not save dirent location This patch fixes a regression in the patch "GFS2: Remember directory insert point", commit 2b47dad866d04f14c328f888ba5406057b8c7d33. The problem had to do with the rename function: The function found space for the new dirent, and remembered that location. But then the old dirent was removed, which often moved the eligible location for the renamed dirent. Putting the new dirent at the saved location caused file system corruption. This patch adds a new "save_loc" variable to struct gfs2_diradd. If 1, the dirent location is saved. If 0, the dirent location is not saved and the buffer_head is released as per previous behavior. Signed-off-by: Bob Peterson <[email protected]> Signed-off-by: Steven Whitehouse <[email protected]> commit 5235166fbc332c8b5dcf49e3a498a8b510a77449 Author: Oliver Neukum <[email protected]> Date: Tue Sep 30 12:54:56 2014 +0200 HID: usbhid: add another mouse that needs QUIRK_ALWAYS_POLL There is a second mouse sharing the same vendor strings but different IDs. Signed-off-by: Oliver Neukum <[email protected]> Signed-off-by: Jiri Kosina <[email protected]> commit 2013add4ce73c93ae2148969a9ec3ecc8b1e26fa Author: Gavin Shan <[email protected]> Date: Wed Oct 1 14:34:51 2014 +1000 powerpc/eeh: Show hex prefix for PE state sysfs As Michael suggested, the hex prefix for the output of EEH PE state sysfs entry (/sys/bus/pci/devices/xxx/eeh_pe_state) is always informative to users. Suggested-by: Michael Ellerman <[email protected]> Signed-off-by: Gavin Shan <[email protected]> Signed-off-by: Michael Ellerman <[email protected]> commit 24c20f10583647e30afe87b6f6d5e14bc7b1cbc6 Author: Christoph Hellwig <[email protected]> Date: Tue Sep 30 16:43:46 2014 +0200 scsi: add a CONFIG_SCSI_MQ_DEFAULT option Add a Kconfig option to enable the blk-mq path for SCSI by default to ease testing and deployment in setups that know they benefit from blk-mq. Signed-off-by: Christoph Hellwig <[email protected]> Reviewed-by: Martin K. Petersen <[email protected]> Reviewed-by: Robert Elliott <[email protected]> Tested-by: Robert Elliott <[email protected]> commit e785060ea3a1c8e37a8bc1449c79e36bff2b5b13 Author: Dolev Raviv <[email protected]> Date: Thu Sep 25 15:32:36 2014 +0300 ufs: definitions for phy interface - Adding some of the definitions missing in unipro.h, including power enumeration. - Read Modify Write Line helper function - Indication for the type of suspend Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Subhash Jadavani <[email protected]> Signed-off-by: Yaniv Gardi <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 374a246e4ebda1fc55d537877bf2412e511ecc7b Author: Subhash Jadavani <[email protected]> Date: Thu Sep 25 15:32:35 2014 +0300 ufs: tune bkops while power managment events Add capability to control the auto bkops during suspend. If host explicitly enables the auto bkops (background operation) on device then only device would perform the bkops on its own. If auto bkops is not enabled explicitly and if the device reaches to state where it must do background operation, device would raise the urgent bkops exception event to host and then host will enable the auto bkops on device. This patch adds the option to choose whether auto bkops should be enabled during runtime suspend or not. Since we don't want to keep the device active to perform the non critical bkops, host will enable urgent bkops only. Keep auto-bkops enabled after resume if urgent bkops needed. If device bkops status shows that its in critical need of executing background operations, host should allow the device to continue doing background operations. Signed-off-by: Subhash Jadavani <[email protected]> Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 856b348305c98d4e0c8e5eafa97c61443197f8d3 Author: Sahitya Tummala <[email protected]> Date: Thu Sep 25 15:32:34 2014 +0300 ufs: Add support for clock scaling using devfreq framework The clocks for UFS device will be managed by generic DVFS (Dynamic Voltage and Frequency Scaling) framework within kernel. This devfreq framework works with different governors to scale the clocks. By default, UFS devices uses simple_ondemand governor which scales the clocks up if the load is more than upthreshold and scales down if the load is less than downthreshold. Signed-off-by: Sahitya Tummala <[email protected]> Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 4cff6d991e4a291cf50fe2659da2ea9ad46620bf Author: Sahitya Tummala <[email protected]> Date: Thu Sep 25 15:32:33 2014 +0300 ufs: Add freq-table-hz property for UFS device Add freq-table-hz propery for UFS device to keep track of <min max> frequencies supported by UFS clocks. Signed-off-by: Sahitya Tummala <[email protected]> Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 1ab27c9cf8b63dd8dec9e17b5c17721c7f3b6cc7 Author: Sahitya Tummala <[email protected]> Date: Thu Sep 25 15:32:32 2014 +0300 ufs: Add support for clock gating The UFS controller clocks can be gated after certain period of inactivity, which is typically less than runtime suspend timeout. In addition to clocks the link will also be put into Hibern8 mode to save more power. The clock gating can be turned on by enabling the capability UFSHCD_CAP_CLK_GATING. To enable entering into Hibern8 mode as part of clock gating, set the capability UFSHCD_CAP_HIBERN8_WITH_CLK_GATING. The tracing events for clock gating can be enabled through debugfs as: echo 1 > /sys/kernel/debug/tracing/events/ufs/ufshcd_clk_gating/enable cat /sys/kernel/debug/tracing/trace_pipe Signed-off-by: Sahitya Tummala <[email protected]> Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 7eb584db73bebbc9852a14341431ed6935419bec Author: Dolev Raviv <[email protected]> Date: Thu Sep 25 15:32:31 2014 +0300 ufs: refactor configuring power mode Sometimes, the device shall report its maximum power and speed capabilities, but we might not wish to configure it to use those maximum capabilities. This change adds support for the vendor specific host driver to implement power change notify callback. To enable configuring different power modes (number of lanes, gear number and fast/slow modes) it is necessary to split the configuration stage from the stage that reads the device max power mode. In addition, it is not required to read the configuration more than once, thus the configuration is stored after reading it once. Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Yaniv Gardi <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 57d104c153d3d6d7bea60089e80f37501851ed2c Author: Subhash Jadavani <[email protected]> Date: Thu Sep 25 15:32:30 2014 +0300 ufs: add UFS power management support This patch adds support for UFS device and UniPro link power management during runtime/system PM. Main idea is to define multiple UFS low power levels based on UFS device and UFS link power states. This would allow any specific platform or pci driver to choose the best suited low power level during runtime and system suspend based on their power goals. bkops handlig: To put the UFS device in sleep state when bkops is disabled, first query the bkops status from the device and enable bkops on device only if device needs time to perform the bkops. START_STOP handling: Before sending START_STOP_UNIT to the device well-known logical unit (w-lun) to make sure that the device w-lun unit attention condition is cleared. Write protection: UFS device specification allows LUs to be write protected, either permanently or power on write protected. If any LU is power on write protected and if the card is power cycled (by powering off VCCQ and/or VCC rails), LU's write protect status would be lost. So this means those LUs can be written now. To ensures that UFS device is power cycled only if the power on protect is not set for any of the LUs, check if power on write protect is set and if device is in sleep/power-off state & link in inactive state (Hibern8 or OFF state). If none of the Logical Units on UFS device is power on write protected then all UFS device power rails (VCC, VCCQ & VCCQ2) can be turned off if UFS device is in power-off state and UFS link is in OFF state. But current implementation would disable all device power rails even if UFS link is not in OFF state. Low power mode: If UFS link is in OFF state then UFS host controller can be power collapsed to avoid leakage current from it. Note that if UFS host controller is power collapsed, full UFS reinitialization will be required on resume to re-establish the link between host and device. Signed-off-by: Subhash Jadavani <[email protected]> Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Sujit Reddy Thumma <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 0ce147d48a3e3352859f0c185e98e8392bee7a25 Author: Subhash Jadavani <[email protected]> Date: Thu Sep 25 15:32:29 2014 +0300 ufs: introduce well known logical unit in ufs UFS device may have standard LUs and LUN id could be from 0x00 to 0x7F. UFS device specification use "Peripheral Device Addressing Format" (SCSI SAM-5) for standard LUs. UFS device may also have the Well Known LUs (also referred as W-LU) which again could be from 0x00 to 0x7F. For W-LUs, UFS device specification only allows the "Extended Addressing Format" (SCSI SAM-5) which means the W-LUNs would start from 0xC100 onwards. This means max. LUN number reported from UFS device could be 0xC17F hence this patch advertise the "max_lun" as 0xC17F which will allow SCSI mid layer to detect the W-LUs as well. But once the W-LUs are detected, UFSHCD driver may get the commands with SCSI LUN id upto 0xC17F but UPIU LUN id field is only 8-bit wide so it requires the mapping of SCSI LUN id to UPIU LUN id. This patch also add support for this mapping. Signed-off-by: Subhash Jadavani <[email protected]> Signed-off-by: Dolev Raviv <[email protected]> Signed-off-by: Sujit Reddy Thumma <[email protected]> Signed-off-by: Christoph Hellwig <[email protected]> commit 2a8fa600445c45222632810a4811ce820279d106 Author: Subhash Jadavani <su…

Non-DT irq handlers were working through irq causes from most-significant to least-significant bit, while DT irqchip driver does it the other way round. This revealed some more HW issues on Kirkwood peripheral IP, where spurious sdio irqs can happen although irqs are masked. Also, the generated binaries show that original non-DT order compared to DT order save two instructions for each bit count check: irqchip DT order with ffs(): 60: e3a06001 mov r6, #1 64: e2643000 rsb r3, r4, #0 68: e0033004 and r3, r3, r4 6c: e16f3f13 clz r3, r3 70: e263301f rsb r3, r3, torvalds#31 74: e1c44316 bic r4, r4, r6, lsl r3 78: e5971004 ldr r1, [r7, #4] Original non-DT order with fls(): 60: e3a07001 mov r7, #1 64: e16f3f14 clz r3, r4 68: e263301f rsb r3, r3, torvalds#31 6c: e1c44317 bic r4, r4, r7, lsl r3 70: e5951004 ldr r1, [r5, #4] Therefore, reverse irq bit handling back to original order by replacing ffs() with fls(). Signed-off-by: Sebastian Hesselbarth <[email protected]> Link: https://lkml.kernel.org/r/1398719528-23607-1-git-send-email-sebastian.hesselbarth@gmail.com Acked-by: Jason Cooper <[email protected]> Signed-off-by: Jason Cooper <[email protected]>

Function rt2800usb_autorun_detect() passes the address of a variable allocated onto the stack to be used for DMA by the USB layer. This has been caught by my debugging-enabled kernel. This patch change things in order to allocate that variable via kmalloc, and it adjusts things to handle the kmalloc failure case, propagating the error. [ 7363.238852] ------------[ cut here ]------------ [ 7363.243529] WARNING: CPU: 1 PID: 5235 at lib/dma-debug.c:1153 check_for_stack+0xa4/0xf0() [ 7363.251759] ehci-pci 0000:00:04.1: DMA-API: device driver maps memory fromstack [addr=ffff88006b81bad4] [ 7363.261210] Modules linked in: rt2800usb(O+) rt2800lib(O) rt2x00usb(O) rt2x00lib(O) rtl818x_pci(O) rtl8187 led_class eeprom_93cx6 mac80211 cfg80211 [last unloaded: rt2x00lib] [ 7363.277143] CPU: 1 PID: 5235 Comm: systemd-udevd Tainted: G O 3.16.0-rc3-wl+ torvalds#31 [ 7363.285546] Hardware name: System manufacturer System Product Name/M3N78 PRO, BIOS ASUS M3N78 PRO ACPI BIOS Revision 1402 12/04/2009 [ 7363.297511] 0000000000000009 ffff88006b81b710 ffffffff8175dcad ffff88006b81b758 [ 7363.305062] ffff88006b81b748 ffffffff8106d372 ffff88006cf10098 ffff88006cead6a0 [ 7363.312622] ffff88006b81bad4 ffffffff81c1e7c0 ffff88006cf10098 ffff88006b81b7a8 [ 7363.320161] Call Trace: [ 7363.322661] [<ffffffff8175dcad>] dump_stack+0x4d/0x6f [ 7363.327847] [<ffffffff8106d372>] warn_slowpath_common+0x82/0xb0 [ 7363.333893] [<ffffffff8106d3e7>] warn_slowpath_fmt+0x47/0x50 [ 7363.339686] [<ffffffff813a93b4>] check_for_stack+0xa4/0xf0 [ 7363.345298] [<ffffffff813a995c>] debug_dma_map_page+0x10c/0x150 [ 7363.351367] [<ffffffff81521bd9>] usb_hcd_map_urb_for_dma+0x229/0x720 [ 7363.357890] [<ffffffff8152256d>] usb_hcd_submit_urb+0x2fd/0x930 [ 7363.363929] [<ffffffff810eac31>] ? irq_work_queue+0x71/0xd0 [ 7363.369617] [<ffffffff810ab5a7>] ? wake_up_klogd+0x37/0x50 [ 7363.375219] [<ffffffff810ab7a5>] ? console_unlock+0x1e5/0x420 [ 7363.381081] [<ffffffff810abc25>] ? vprintk_emit+0x245/0x530 [ 7363.386773] [<ffffffff81523d3c>] usb_submit_urb+0x30c/0x580 [ 7363.392462] [<ffffffff81524295>] usb_start_wait_urb+0x65/0xf0 [ 7363.398325] [<ffffffff815243ed>] usb_control_msg+0xcd/0x110 [ 7363.404014] [<ffffffffa005514d>] rt2x00usb_vendor_request+0xbd/0x170 [rt2x00usb] [ 7363.411544] [<ffffffffa0074292>] rt2800usb_autorun_detect+0x32/0x50 [rt2800usb] [ 7363.418986] [<ffffffffa0074aa1>] rt2800usb_read_eeprom+0x11/0x70 [rt2800usb] [ 7363.426168] [<ffffffffa0063ffd>] rt2800_probe_hw+0x11d/0xf90 [rt2800lib] [ 7363.432989] [<ffffffffa0074b7d>] rt2800usb_probe_hw+0xd/0x50 [rt2800usb] [ 7363.439808] [<ffffffffa00453d8>] rt2x00lib_probe_dev+0x238/0x7c0 [rt2x00lib] [ 7363.446992] [<ffffffffa00bfa48>] ? ieee80211_led_names+0xb8/0x100 [mac80211] [ 7363.454156] [<ffffffffa0056116>] rt2x00usb_probe+0x156/0x1f0 [rt2x00usb] [ 7363.460971] [<ffffffffa0074250>] rt2800usb_probe+0x10/0x20 [rt2800usb] [ 7363.467616] [<ffffffff8152799e>] usb_probe_interface+0xce/0x1c0 [ 7363.473651] [<ffffffff81480c20>] really_probe+0x70/0x240 [ 7363.479079] [<ffffffff81480f01>] __driver_attach+0xa1/0xb0 [ 7363.484682] [<ffffffff81480e60>] ? __device_attach+0x70/0x70 [ 7363.490461] [<ffffffff8147eef3>] bus_for_each_dev+0x63/0xa0 [ 7363.496146] [<ffffffff814807c9>] driver_attach+0x19/0x20 [ 7363.501570] [<ffffffff81480468>] bus_add_driver+0x178/0x220 [ 7363.507270] [<ffffffff8148151b>] driver_register+0x5b/0xe0 [ 7363.512874] [<ffffffff815271b0>] usb_register_driver+0xa0/0x170 [ 7363.518905] [<ffffffffa007a000>] ? 0xffffffffa0079fff [ 7363.524074] [<ffffffffa007a01e>] rt2800usb_driver_init+0x1e/0x20 [rt2800usb] [ 7363.531247] [<ffffffff810002d4>] do_one_initcall+0x84/0x1b0 [ 7363.536932] [<ffffffff8113aa60>] ? kfree+0xd0/0x110 [ 7363.541931] [<ffffffff8112730a>] ? __vunmap+0xaa/0xf0 [ 7363.547538] [<ffffffff810ca07e>] load_module+0x1aee/0x2040 [ 7363.553141] [<ffffffff810c6f10>] ? store_uevent+0x50/0x50 [ 7363.558676] [<ffffffff810ca66e>] SyS_init_module+0x9e/0xc0 [ 7363.564285] [<ffffffff81764012>] system_call_fastpath+0x16/0x1b [ 7363.570338] ---[ end trace 01ef5f822bea9882 ]--- Signed-off-by: Andrea Merello <[email protected]> Acked-by: Helmut Schaa <[email protected]> Signed-off-by: John W. Linville <[email protected]>

BugLink: http://bugs.launchpad.net/bugs/1338919 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1338919/comments/11 I'm getting the spew below when booting with Haswell (Xeon E5-2699 v3) CPUs and the "Cluster-on-Die" (CoD) feature enabled in the BIOS. It seems similar to the issue that some folks from AMD ran in to on their systems and addressed in this commit: 161270f ("x86/smp: Fix topology checks on AMD MCM CPUs") Both these Intel and AMD systems break an assumption which is being enforced by topology_sane(): a socket may not contain more than one NUMA node. AMD special-cased their system by looking for a cpuid flag. The Intel mode is dependent on BIOS options and I do not know of a way which it is enumerated other than the tables being parsed during the CPU bringup process. In other words, we have to trust the ACPI tables <shudder>. This detects the situation where a NUMA node occurs at a place in the middle of the "CPU" sched domains. It replaces the default topology with one that relies on the NUMA information from the firmware (SRAT table) for all levels of sched domains above the hyperthreads. This also fixes a sysfs bug. We used to freak out when we saw the "mc" group cross a node boundary, so we stopped building the MC group. MC gets exported as the 'core_siblings_list' in /sys/devices/system/cpu/cpu*/topology/ and this caused CPUs with the same 'physical_package_id' to not be listed together in 'core_siblings_list'. This violates a statement from Documentation/ABI/testing/sysfs-devices-system-cpu: core_siblings: internal kernel map of cpu#'s hardware threads within the same physical_package_id. core_siblings_list: human-readable list of the logical CPU numbers within the same physical_package_id as cpu#. The sysfs effects here cause an issue with the hwloc tool where it gets confused and thinks there are more sockets than are physically present. Before this patch, there are two packages: 18 0 18 1 But 4 _sets_ of core siblings: 9 0-8 9 18-26 9 27-35 9 9-17 After this set, there are only 2 sets of core siblings, which is what we expect for a 2-socket system. 18 0 18 1 18 0-17 18 18-35 Example spew: ... NMI watchdog: enabled on all CPUs, permanently consumes one hw-PMU counter. #2 #3 #4 #5 torvalds#6 torvalds#7 torvalds#8 .... node #1, CPUs: torvalds#9 ------------[ cut here ]------------ WARNING: CPU: 9 PID: 0 at /home/ak/hle/linux-hle-2.6/arch/x86/kernel/smpboot.c:306 topology_sane.isra.2+0x74/0x90() sched: CPU torvalds#9's mc-sibling CPU #0 is not on the same node! [node: 1 != 0]. Ignoring dependency. Modules linked in: CPU: 9 PID: 0 Comm: swapper/9 Not tainted 3.17.0-rc1-00293-g8e01c4d-dirty torvalds#631 Hardware name: Intel Corporation S2600WTT/S2600WTT, BIOS GRNDSDP1.86B.0036.R05.1407140519 07/14/2014 0000000000000009 ffff88046ddabe00 ffffffff8172e485 ffff88046ddabe48 ffff88046ddabe38 ffffffff8109691d 000000000000b001 0000000000000009 ffff88086fc12580 000000000000b020 0000000000000009 ffff88046ddabe98 Call Trace: [<ffffffff8172e485>] dump_stack+0x45/0x56 [<ffffffff8109691d>] warn_slowpath_common+0x7d/0xa0 [<ffffffff8109698c>] warn_slowpath_fmt+0x4c/0x50 [<ffffffff81074f94>] topology_sane.isra.2+0x74/0x90 [<ffffffff8107530e>] set_cpu_sibling_map+0x31e/0x4f0 [<ffffffff8107568d>] start_secondary+0x1ad/0x240 ---[ end trace 3fe5f587a9fcde61 ]--- torvalds#10 torvalds#11 torvalds#12 torvalds#13 torvalds#14 torvalds#15 torvalds#16 torvalds#17 .... node #2, CPUs: torvalds#18 torvalds#19 torvalds#20 torvalds#21 torvalds#22 torvalds#23 torvalds#24 torvalds#25 torvalds#26 .... node #3, CPUs: torvalds#27 torvalds#28 torvalds#29 torvalds#30 torvalds#31 torvalds#32 torvalds#33 torvalds#34 torvalds#35 Signed-off-by: Dave Hansen <[email protected]> [ Added LLC domain and s/match_mc/match_die/ ] Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: David Rientjes <[email protected]> Cc: Igor Mammedov <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Prarit Bhargava <[email protected]> Cc: Toshi Kani <[email protected]> Cc: [email protected] Cc: "H. Peter Anvin" <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>

This patch wires up the new syscall sys_bpf() on powerpc. Passes the tests in samples/bpf: #0 add+sub+mul OK #1 unreachable OK #2 unreachable2 OK #3 out of range jump OK #4 out of range jump2 OK #5 test1 ld_imm64 OK #6 test2 ld_imm64 OK #7 test3 ld_imm64 OK #8 test4 ld_imm64 OK #9 test5 ld_imm64 OK #10 no bpf_exit OK #11 loop (back-edge) OK #12 loop2 (back-edge) OK #13 conditional loop OK #14 read uninitialized register OK #15 read invalid register OK #16 program doesn't init R0 before exit OK #17 stack out of bounds OK #18 invalid call insn1 OK #19 invalid call insn2 OK #20 invalid function call OK #21 uninitialized stack1 OK #22 uninitialized stack2 OK #23 check valid spill/fill OK #24 check corrupted spill/fill OK #25 invalid src register in STX OK #26 invalid dst register in STX OK #27 invalid dst register in ST OK #28 invalid src register in LDX OK #29 invalid dst register in LDX OK #30 junk insn OK #31 junk insn2 OK #32 junk insn3 OK #33 junk insn4 OK #34 junk insn5 OK #35 misaligned read from stack OK #36 invalid map_fd for function call OK #37 don't check return value before access OK #38 access memory with incorrect alignment OK #39 sometimes access memory with incorrect alignment OK #40 jump test 1 OK #41 jump test 2 OK #42 jump test 3 OK #43 jump test 4 OK Signed-off-by: Pranith Kumar <[email protected]> [mpe: test using samples/bpf] Signed-off-by: Michael Ellerman <[email protected]>

If the userspace passes a malformed sched scan request (or a net detect wowlan configuration) by adding a NL80211_ATTR_SCHED_SCAN_MATCH attribute without any nested matchsets, a NULL pointer dereference will occur. Fix this by checking that we do have matchsets in our array before trying to access it. BUG: unable to handle kernel NULL pointer dereference at 0000000000000024 IP: [<ffffffffa002fd69>] nl80211_parse_sched_scan.part.67+0x6e9/0x900 [cfg80211] PGD 865c067 PUD 865b067 PMD 0 Oops: 0002 [#1] SMP Modules linked in: iwlmvm(O) iwlwifi(O) mac80211(O) cfg80211(O) compat(O) [last unloaded: compat] CPU: 2 PID: 2442 Comm: iw Tainted: G O 3.17.2 #31 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff880013800790 ti: ffff880008d80000 task.ti: ffff880008d80000 RIP: 0010:[<ffffffffa002fd69>] [<ffffffffa002fd69>] nl80211_parse_sched_scan.part.67+0x6e9/0x900 [cfg80211] RSP: 0018:ffff880008d838d0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000143c RSI: 0000000000000000 RDI: ffff880008ee8dd0 RBP: ffff880008d83948 R08: 0000000000000002 R09: 0000000000000019 R10: ffff88001d1b3c40 R11: 0000000000000002 R12: ffff880019e85e00 R13: 00000000fffffed4 R14: ffff880009757800 R15: 0000000000001388 FS: 00007fa3b6d13700(0000) GS:ffff88003e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000024 CR3: 0000000008670000 CR4: 00000000000006e0 Stack: ffff880009757800 ffff880000000001 0000000000000000 ffff880008ee84e0 0000000000000000 ffff880009757800 00000000fffffed4 ffff880008d83948 ffffffff814689c9 ffff880009757800 ffff880008ee8000 0000000000000000 Call Trace: [<ffffffff814689c9>] ? nla_parse+0xb9/0x120 [<ffffffffa00306de>] nl80211_set_wowlan+0x75e/0x960 [cfg80211] [<ffffffff810bf3d5>] ? mark_held_locks+0x75/0xa0 [<ffffffff8161a77b>] genl_family_rcv_msg+0x18b/0x360 [<ffffffff810bf66d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff8161a9d4>] genl_rcv_msg+0x84/0xc0 [<ffffffff8161a950>] ? genl_family_rcv_msg+0x360/0x360 [<ffffffff81618e79>] netlink_rcv_skb+0xa9/0xd0 [<ffffffff81619458>] genl_rcv+0x28/0x40 [<ffffffff816184a5>] netlink_unicast+0x105/0x180 [<ffffffff8161886f>] netlink_sendmsg+0x34f/0x7a0 [<ffffffff8105a097>] ? kvm_clock_read+0x27/0x40 [<ffffffff815c644d>] sock_sendmsg+0x8d/0xc0 [<ffffffff811a75c9>] ? might_fault+0xb9/0xc0 [<ffffffff811a756e>] ? might_fault+0x5e/0xc0 [<ffffffff815d5d26>] ? verify_iovec+0x56/0xe0 [<ffffffff815c73e0>] ___sys_sendmsg+0x3d0/0x3e0 [<ffffffff810a7be8>] ? sched_clock_cpu+0x98/0xd0 [<ffffffff810611b4>] ? __do_page_fault+0x254/0x580 [<ffffffff810bb39f>] ? up_read+0x1f/0x40 [<ffffffff810611b4>] ? __do_page_fault+0x254/0x580 [<ffffffff812146ed>] ? __fget_light+0x13d/0x160 [<ffffffff815c7b02>] __sys_sendmsg+0x42/0x80 [<ffffffff815c7b52>] SyS_sendmsg+0x12/0x20 [<ffffffff81751f69>] system_call_fastpath+0x16/0x1b Fixes: ea73cbc ("nl80211: fix scheduled scan RSSI matchset attribute confusion") Cc: [email protected] [3.15+] Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: Johannes Berg <[email protected]>

commit f89f46c upstream. If the userspace passes a malformed sched scan request (or a net detect wowlan configuration) by adding a NL80211_ATTR_SCHED_SCAN_MATCH attribute without any nested matchsets, a NULL pointer dereference will occur. Fix this by checking that we do have matchsets in our array before trying to access it. BUG: unable to handle kernel NULL pointer dereference at 0000000000000024 IP: [<ffffffffa002fd69>] nl80211_parse_sched_scan.part.67+0x6e9/0x900 [cfg80211] PGD 865c067 PUD 865b067 PMD 0 Oops: 0002 [#1] SMP Modules linked in: iwlmvm(O) iwlwifi(O) mac80211(O) cfg80211(O) compat(O) [last unloaded: compat] CPU: 2 PID: 2442 Comm: iw Tainted: G O 3.17.2 #31 Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011 task: ffff880013800790 ti: ffff880008d80000 task.ti: ffff880008d80000 RIP: 0010:[<ffffffffa002fd69>] [<ffffffffa002fd69>] nl80211_parse_sched_scan.part.67+0x6e9/0x900 [cfg80211] RSP: 0018:ffff880008d838d0 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 000000000000143c RSI: 0000000000000000 RDI: ffff880008ee8dd0 RBP: ffff880008d83948 R08: 0000000000000002 R09: 0000000000000019 R10: ffff88001d1b3c40 R11: 0000000000000002 R12: ffff880019e85e00 R13: 00000000fffffed4 R14: ffff880009757800 R15: 0000000000001388 FS: 00007fa3b6d13700(0000) GS:ffff88003e200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000024 CR3: 0000000008670000 CR4: 00000000000006e0 Stack: ffff880009757800 ffff880000000001 0000000000000000 ffff880008ee84e0 0000000000000000 ffff880009757800 00000000fffffed4 ffff880008d83948 ffffffff814689c9 ffff880009757800 ffff880008ee8000 0000000000000000 Call Trace: [<ffffffff814689c9>] ? nla_parse+0xb9/0x120 [<ffffffffa00306de>] nl80211_set_wowlan+0x75e/0x960 [cfg80211] [<ffffffff810bf3d5>] ? mark_held_locks+0x75/0xa0 [<ffffffff8161a77b>] genl_family_rcv_msg+0x18b/0x360 [<ffffffff810bf66d>] ? trace_hardirqs_on+0xd/0x10 [<ffffffff8161a9d4>] genl_rcv_msg+0x84/0xc0 [<ffffffff8161a950>] ? genl_family_rcv_msg+0x360/0x360 [<ffffffff81618e79>] netlink_rcv_skb+0xa9/0xd0 [<ffffffff81619458>] genl_rcv+0x28/0x40 [<ffffffff816184a5>] netlink_unicast+0x105/0x180 [<ffffffff8161886f>] netlink_sendmsg+0x34f/0x7a0 [<ffffffff8105a097>] ? kvm_clock_read+0x27/0x40 [<ffffffff815c644d>] sock_sendmsg+0x8d/0xc0 [<ffffffff811a75c9>] ? might_fault+0xb9/0xc0 [<ffffffff811a756e>] ? might_fault+0x5e/0xc0 [<ffffffff815d5d26>] ? verify_iovec+0x56/0xe0 [<ffffffff815c73e0>] ___sys_sendmsg+0x3d0/0x3e0 [<ffffffff810a7be8>] ? sched_clock_cpu+0x98/0xd0 [<ffffffff810611b4>] ? __do_page_fault+0x254/0x580 [<ffffffff810bb39f>] ? up_read+0x1f/0x40 [<ffffffff810611b4>] ? __do_page_fault+0x254/0x580 [<ffffffff812146ed>] ? __fget_light+0x13d/0x160 [<ffffffff815c7b02>] __sys_sendmsg+0x42/0x80 [<ffffffff815c7b52>] SyS_sendmsg+0x12/0x20 [<ffffffff81751f69>] system_call_fastpath+0x16/0x1b Fixes: ea73cbc ("nl80211: fix scheduled scan RSSI matchset attribute confusion") Signed-off-by: Luciano Coelho <[email protected]> Signed-off-by: Johannes Berg <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>

Sumeone needs to buy a tab key. WARNING: please, no spaces at the start of a line torvalds#29: FILE: security/tomoyo/util.c:951: + struct file *exe_file;$ WARNING: please, no spaces at the start of a line torvalds#30: FILE: security/tomoyo/util.c:952: + const char *cp;$ WARNING: please, no spaces at the start of a line torvalds#31: FILE: security/tomoyo/util.c:953: + struct mm_struct *mm = current->mm;$ WARNING: please, no spaces at the start of a line torvalds#40: FILE: security/tomoyo/util.c:955: + if (!mm)$ WARNING: suspect code indent for conditional statements (7, 15) torvalds#40: FILE: security/tomoyo/util.c:955: + if (!mm) + return NULL; WARNING: please, no spaces at the start of a line torvalds#42: FILE: security/tomoyo/util.c:957: + exe_file = get_mm_exe_file(mm);$ WARNING: please, no spaces at the start of a line torvalds#43: FILE: security/tomoyo/util.c:958: + if (!exe_file)$ WARNING: suspect code indent for conditional statements (7, 15) torvalds#43: FILE: security/tomoyo/util.c:958: + if (!exe_file) + return NULL; WARNING: please, no spaces at the start of a line torvalds#46: FILE: security/tomoyo/util.c:961: + cp = tomoyo_realpath_from_path(&exe_file->f_path);$ WARNING: please, no spaces at the start of a line torvalds#47: FILE: security/tomoyo/util.c:962: + fput(exe_file);$ WARNING: please, no spaces at the start of a line torvalds#48: FILE: security/tomoyo/util.c:963: + return cp;$ total: 0 errors, 11 warnings, 28 lines checked ./patches/tomoyo-reduce-mmap_sem-hold-for-mm-exe_file.patch has style problems, please review. If any of these errors are false positives, please report them to the maintainer, see CHECKPATCH in MAINTAINERS. Please run checkpatch prior to sending patches Cc: Davidlohr Bueso <[email protected]> Cc: James Morris <[email protected]> Cc: Tetsuo Handa <[email protected]> Signed-off-by: Andrew Morton <[email protected]>

Resolve Wi-Fi stall issues

Nikolay has reported a hang when a memcg reclaim got stuck with the following backtrace: PID: 18308 TASK: ffff883d7c9b0a30 CPU: 1 COMMAND: "rsync" #0 [ffff88177374ac60] __schedule at ffffffff815ab152 #1 [ffff88177374acb0] schedule at ffffffff815ab76e #2 [ffff88177374acd0] schedule_timeout at ffffffff815ae5e5 #3 [ffff88177374ad70] io_schedule_timeout at ffffffff815aad6a #4 [ffff88177374ada0] bit_wait_io at ffffffff815abfc6 #5 [ffff88177374adb0] __wait_on_bit at ffffffff815abda5 torvalds#6 [ffff88177374ae00] wait_on_page_bit at ffffffff8111fd4f torvalds#7 [ffff88177374ae50] shrink_page_list at ffffffff81135445 torvalds#8 [ffff88177374af50] shrink_inactive_list at ffffffff81135845 torvalds#9 [ffff88177374b060] shrink_lruvec at ffffffff81135ead torvalds#10 [ffff88177374b150] shrink_zone at ffffffff811360c3 torvalds#11 [ffff88177374b220] shrink_zones at ffffffff81136eff torvalds#12 [ffff88177374b2a0] do_try_to_free_pages at ffffffff8113712f torvalds#13 [ffff88177374b300] try_to_free_mem_cgroup_pages at ffffffff811372be torvalds#14 [ffff88177374b380] try_charge at ffffffff81189423 torvalds#15 [ffff88177374b430] mem_cgroup_try_charge at ffffffff8118c6f5 torvalds#16 [ffff88177374b470] __add_to_page_cache_locked at ffffffff8112137d torvalds#17 [ffff88177374b4e0] add_to_page_cache_lru at ffffffff81121618 torvalds#18 [ffff88177374b510] pagecache_get_page at ffffffff8112170b torvalds#19 [ffff88177374b560] grow_dev_page at ffffffff811c8297 torvalds#20 [ffff88177374b5c0] __getblk_slow at ffffffff811c91d6 torvalds#21 [ffff88177374b600] __getblk_gfp at ffffffff811c92c1 torvalds#22 [ffff88177374b630] ext4_ext_grow_indepth at ffffffff8124565c torvalds#23 [ffff88177374b690] ext4_ext_create_new_leaf at ffffffff81246ca8 torvalds#24 [ffff88177374b6e0] ext4_ext_insert_extent at ffffffff81246f09 torvalds#25 [ffff88177374b750] ext4_ext_map_blocks at ffffffff8124a848 torvalds#26 [ffff88177374b870] ext4_map_blocks at ffffffff8121a5b7 torvalds#27 [ffff88177374b910] mpage_map_one_extent at ffffffff8121b1fa torvalds#28 [ffff88177374b950] mpage_map_and_submit_extent at ffffffff8121f07b torvalds#29 [ffff88177374b9b0] ext4_writepages at ffffffff8121f6d5 torvalds#30 [ffff88177374bb20] do_writepages at ffffffff8112c490 torvalds#31 [ffff88177374bb30] __filemap_fdatawrite_range at ffffffff81120199 torvalds#32 [ffff88177374bb80] filemap_flush at ffffffff8112041c torvalds#33 [ffff88177374bb90] ext4_alloc_da_blocks at ffffffff81219da1 torvalds#34 [ffff88177374bbb0] ext4_rename at ffffffff81229b91 torvalds#35 [ffff88177374bcd0] ext4_rename2 at ffffffff81229e32 torvalds#36 [ffff88177374bce0] vfs_rename at ffffffff811a08a5 torvalds#37 [ffff88177374bd60] SYSC_renameat2 at ffffffff811a3ffc torvalds#38 [ffff88177374bf60] sys_renameat2 at ffffffff811a408e torvalds#39 [ffff88177374bf70] sys_rename at ffffffff8119e51e torvalds#40 [ffff88177374bf80] system_call_fastpath at ffffffff815afa89 Dave Chinner has properly pointed out that this is a deadlock in the reclaim code because ext4 doesn't submit pages which are marked by PG_writeback right away. The heuristic was introduced by e62e384 ("memcg: prevent OOM with too many dirty pages") and it was applied only when may_enter_fs was specified. The code has been changed by c3b94f4 ("memcg: further prevent OOM with too many dirty pages") which has removed the __GFP_FS restriction with a reasoning that we do not get into the fs code. But this is not sufficient apparently because the fs doesn't necessarily submit pages marked PG_writeback for IO right away. ext4_bio_write_page calls io_submit_add_bh but that doesn't necessarily submit the bio. Instead it tries to map more pages into the bio and mpage_map_one_extent might trigger memcg charge which might end up waiting on a page which is marked PG_writeback but hasn't been submitted yet so we would end up waiting for something that never finishes. Fix this issue by replacing __GFP_IO by __GFP_FS check (for case 2) before we go to wait on the writeback. The page fault path, which is the only path that triggers memcg oom killer since 3.12, shouldn't require GFP_NOFS and so we shouldn't reintroduce the premature OOM killer issue which was originally addressed by the heuristic. As per David Chinner the xfs is doing similar thing since 2.6.15 already so ext4 is not the only affected filesystem. Moreover he notes: : For example: IO completion might require unwritten extent conversion : which executes filesystem transactions and GFP_NOFS allocations. The : writeback flag on the pages can not be cleared until unwritten : extent conversion completes. Hence memory reclaim cannot wait on : page writeback to complete in GFP_NOFS context because it is not : safe to do so, memcg reclaim or otherwise. Cc: stable # 3.6+ [[email protected]: check for __GFP_FS rather than __GFP_IO] Fixes: c3b94f4 ("memcg: further prevent OOM with too many dirty pages") Reported-by: Nikolay Borisov <[email protected]> Signed-off-by: Michal Hocko <[email protected]> --- mm/vmscan.c | 24 ++++++++++-------------- 1 file changed, 10 insertions(+), 14 deletions(-)

Nikolay has reported a hang when a memcg reclaim got stuck with the following backtrace: PID: 18308 TASK: ffff883d7c9b0a30 CPU: 1 COMMAND: "rsync" #0 [ffff88177374ac60] __schedule at ffffffff815ab152 #1 [ffff88177374acb0] schedule at ffffffff815ab76e #2 [ffff88177374acd0] schedule_timeout at ffffffff815ae5e5 #3 [ffff88177374ad70] io_schedule_timeout at ffffffff815aad6a #4 [ffff88177374ada0] bit_wait_io at ffffffff815abfc6 #5 [ffff88177374adb0] __wait_on_bit at ffffffff815abda5 torvalds#6 [ffff88177374ae00] wait_on_page_bit at ffffffff8111fd4f torvalds#7 [ffff88177374ae50] shrink_page_list at ffffffff81135445 torvalds#8 [ffff88177374af50] shrink_inactive_list at ffffffff81135845 torvalds#9 [ffff88177374b060] shrink_lruvec at ffffffff81135ead torvalds#10 [ffff88177374b150] shrink_zone at ffffffff811360c3 torvalds#11 [ffff88177374b220] shrink_zones at ffffffff81136eff torvalds#12 [ffff88177374b2a0] do_try_to_free_pages at ffffffff8113712f torvalds#13 [ffff88177374b300] try_to_free_mem_cgroup_pages at ffffffff811372be torvalds#14 [ffff88177374b380] try_charge at ffffffff81189423 torvalds#15 [ffff88177374b430] mem_cgroup_try_charge at ffffffff8118c6f5 torvalds#16 [ffff88177374b470] __add_to_page_cache_locked at ffffffff8112137d torvalds#17 [ffff88177374b4e0] add_to_page_cache_lru at ffffffff81121618 torvalds#18 [ffff88177374b510] pagecache_get_page at ffffffff8112170b torvalds#19 [ffff88177374b560] grow_dev_page at ffffffff811c8297 torvalds#20 [ffff88177374b5c0] __getblk_slow at ffffffff811c91d6 torvalds#21 [ffff88177374b600] __getblk_gfp at ffffffff811c92c1 torvalds#22 [ffff88177374b630] ext4_ext_grow_indepth at ffffffff8124565c torvalds#23 [ffff88177374b690] ext4_ext_create_new_leaf at ffffffff81246ca8 torvalds#24 [ffff88177374b6e0] ext4_ext_insert_extent at ffffffff81246f09 torvalds#25 [ffff88177374b750] ext4_ext_map_blocks at ffffffff8124a848 torvalds#26 [ffff88177374b870] ext4_map_blocks at ffffffff8121a5b7 torvalds#27 [ffff88177374b910] mpage_map_one_extent at ffffffff8121b1fa torvalds#28 [ffff88177374b950] mpage_map_and_submit_extent at ffffffff8121f07b torvalds#29 [ffff88177374b9b0] ext4_writepages at ffffffff8121f6d5 torvalds#30 [ffff88177374bb20] do_writepages at ffffffff8112c490 torvalds#31 [ffff88177374bb30] __filemap_fdatawrite_range at ffffffff81120199 torvalds#32 [ffff88177374bb80] filemap_flush at ffffffff8112041c torvalds#33 [ffff88177374bb90] ext4_alloc_da_blocks at ffffffff81219da1 torvalds#34 [ffff88177374bbb0] ext4_rename at ffffffff81229b91 torvalds#35 [ffff88177374bcd0] ext4_rename2 at ffffffff81229e32 torvalds#36 [ffff88177374bce0] vfs_rename at ffffffff811a08a5 torvalds#37 [ffff88177374bd60] SYSC_renameat2 at ffffffff811a3ffc torvalds#38 [ffff88177374bf60] sys_renameat2 at ffffffff811a408e torvalds#39 [ffff88177374bf70] sys_rename at ffffffff8119e51e torvalds#40 [ffff88177374bf80] system_call_fastpath at ffffffff815afa89 Dave Chinner has properly pointed out that this is a deadlock in the reclaim code because ext4 doesn't submit pages which are marked by PG_writeback right away. The heuristic was introduced by e62e384 ("memcg: prevent OOM with too many dirty pages") and it was applied only when may_enter_fs was specified. The code has been changed by c3b94f4 ("memcg: further prevent OOM with too many dirty pages") which has removed the __GFP_FS restriction with a reasoning that we do not get into the fs code. But this is not sufficient apparently because the fs doesn't necessarily submit pages marked PG_writeback for IO right away. ext4_bio_write_page calls io_submit_add_bh but that doesn't necessarily submit the bio. Instead it tries to map more pages into the bio and mpage_map_one_extent might trigger memcg charge which might end up waiting on a page which is marked PG_writeback but hasn't been submitted yet so we would end up waiting for something that never finishes. Fix this issue by replacing __GFP_IO by __GFP_FS check (for case 2) before we go to wait on the writeback. The page fault path, which is the only path that triggers memcg oom killer since 3.12, shouldn't require GFP_NOFS and so we shouldn't reintroduce the premature OOM killer issue which was originally addressed by the heuristic. As per David Chinner the xfs is doing similar thing since 2.6.15 already so ext4 is not the only affected filesystem. Moreover he notes: : For example: IO completion might require unwritten extent conversion : which executes filesystem transactions and GFP_NOFS allocations. The : writeback flag on the pages can not be cleared until unwritten : extent conversion completes. Hence memory reclaim cannot wait on : page writeback to complete in GFP_NOFS context because it is not : safe to do so, memcg reclaim or otherwise. Fixes: c3b94f4 ("memcg: further prevent OOM with too many dirty pages") [[email protected]: check for __GFP_FS rather than __GFP_IO] Signed-off-by: Michal Hocko <[email protected]> Reported-by: Nikolay Borisov <[email protected]> Cc: Theodore Ts'o <[email protected]> Cc: Johannes Weiner <[email protected]> Cc: Dave Chinner <[email protected]> Cc: Marian Marinov <[email protected]> Cc: Hugh Dickins <[email protected]> Cc: <[email protected]> [3.6+] Signed-off-by: Andrew Morton <[email protected]>

Nikolay has reported a hang when a memcg reclaim got stuck with the following backtrace: PID: 18308 TASK: ffff883d7c9b0a30 CPU: 1 COMMAND: "rsync" #0 __schedule at ffffffff815ab152 #1 schedule at ffffffff815ab76e #2 schedule_timeout at ffffffff815ae5e5 #3 io_schedule_timeout at ffffffff815aad6a #4 bit_wait_io at ffffffff815abfc6 #5 __wait_on_bit at ffffffff815abda5 #6 wait_on_page_bit at ffffffff8111fd4f #7 shrink_page_list at ffffffff81135445 #8 shrink_inactive_list at ffffffff81135845 #9 shrink_lruvec at ffffffff81135ead #10 shrink_zone at ffffffff811360c3 #11 shrink_zones at ffffffff81136eff #12 do_try_to_free_pages at ffffffff8113712f #13 try_to_free_mem_cgroup_pages at ffffffff811372be #14 try_charge at ffffffff81189423 #15 mem_cgroup_try_charge at ffffffff8118c6f5 #16 __add_to_page_cache_locked at ffffffff8112137d #17 add_to_page_cache_lru at ffffffff81121618 #18 pagecache_get_page at ffffffff8112170b #19 grow_dev_page at ffffffff811c8297 #20 __getblk_slow at ffffffff811c91d6 #21 __getblk_gfp at ffffffff811c92c1 #22 ext4_ext_grow_indepth at ffffffff8124565c #23 ext4_ext_create_new_leaf at ffffffff81246ca8 #24 ext4_ext_insert_extent at ffffffff81246f09 #25 ext4_ext_map_blocks at ffffffff8124a848 #26 ext4_map_blocks at ffffffff8121a5b7 #27 mpage_map_one_extent at ffffffff8121b1fa #28 mpage_map_and_submit_extent at ffffffff8121f07b #29 ext4_writepages at ffffffff8121f6d5 #30 do_writepages at ffffffff8112c490 #31 __filemap_fdatawrite_range at ffffffff81120199 #32 filemap_flush at ffffffff8112041c #33 ext4_alloc_da_blocks at ffffffff81219da1 #34 ext4_rename at ffffffff81229b91 #35 ext4_rename2 at ffffffff81229e32 #36 vfs_rename at ffffffff811a08a5 #37 SYSC_renameat2 at ffffffff811a3ffc #38 sys_renameat2 at ffffffff811a408e #39 sys_rename at ffffffff8119e51e #40 system_call_fastpath at ffffffff815afa89 Dave Chinner has properly pointed out that this is a deadlock in the reclaim code because ext4 doesn't submit pages which are marked by PG_writeback right away. The heuristic was introduced by commit e62e384 ("memcg: prevent OOM with too many dirty pages") and it was applied only when may_enter_fs was specified. The code has been changed by c3b94f4 ("memcg: further prevent OOM with too many dirty pages") which has removed the __GFP_FS restriction with a reasoning that we do not get into the fs code. But this is not sufficient apparently because the fs doesn't necessarily submit pages marked PG_writeback for IO right away. ext4_bio_write_page calls io_submit_add_bh but that doesn't necessarily submit the bio. Instead it tries to map more pages into the bio and mpage_map_one_extent might trigger memcg charge which might end up waiting on a page which is marked PG_writeback but hasn't been submitted yet so we would end up waiting for something that never finishes. Fix this issue by replacing __GFP_IO by may_enter_fs check (for case 2) before we go to wait on the writeback. The page fault path, which is the only path that triggers memcg oom killer since 3.12, shouldn't require GFP_NOFS and so we shouldn't reintroduce the premature OOM killer issue which was originally addressed by the heuristic. As per David Chinner the xfs is doing similar thing since 2.6.15 already so ext4 is not the only affected filesystem. Moreover he notes: : For example: IO completion might require unwritten extent conversion : which executes filesystem transactions and GFP_NOFS allocations. The : writeback flag on the pages can not be cleared until unwritten : extent conversion completes. Hence memory reclaim cannot wait on : page writeback to complete in GFP_NOFS context because it is not : safe to do so, memcg reclaim or otherwise. Cc: [email protected] # 3.9+ [[email protected]: corrected the control flow] Fixes: c3b94f4 ("memcg: further prevent OOM with too many dirty pages") Reported-by: Nikolay Borisov <[email protected]> Signed-off-by: Michal Hocko <[email protected]> Signed-off-by: Hugh Dickins <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>

[ Upstream commit a7d6027 ] syzkaller reported an overflown write in arp_req_get(). [0] When ioctl(SIOCGARP) is issued, arp_req_get() looks up an neighbour entry and copies neigh->ha to struct arpreq.arp_ha.sa_data. The arp_ha here is struct sockaddr, not struct sockaddr_storage, so the sa_data buffer is just 14 bytes. In the splat below, 2 bytes are overflown to the next int field, arp_flags. We initialise the field just after the memcpy(), so it's not a problem. However, when dev->addr_len is greater than 22 (e.g. MAX_ADDR_LEN), arp_netmask is overwritten, which could be set as htonl(0xFFFFFFFFUL) in arp_ioctl() before calling arp_req_get(). To avoid the overflow, let's limit the max length of memcpy(). Note that commit b5f0de6 ("net: dev: Convert sa_data to flexible array in struct sockaddr") just silenced syzkaller. [0]: memcpy: detected field-spanning write (size 16) of single field "r->arp_ha.sa_data" at net/ipv4/arp.c:1128 (size 14) WARNING: CPU: 0 PID: 144638 at net/ipv4/arp.c:1128 arp_req_get+0x411/0x4a0 net/ipv4/arp.c:1128 Modules linked in: CPU: 0 PID: 144638 Comm: syz-executor.4 Not tainted 6.1.74 torvalds#31 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 RIP: 0010:arp_req_get+0x411/0x4a0 net/ipv4/arp.c:1128 Code: fd ff ff e8 41 42 de fb b9 0e 00 00 00 4c 89 fe 48 c7 c2 20 6d ab 87 48 c7 c7 80 6d ab 87 c6 05 25 af 72 04 01 e8 5f 8d ad fb <0f> 0b e9 6c fd ff ff e8 13 42 de fb be 03 00 00 00 4c 89 e7 e8 a6 RSP: 0018:ffffc900050b7998 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88803a815000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8641a44a RDI: 0000000000000001 RBP: ffffc900050b7a98 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 203a7970636d656d R12: ffff888039c54000 R13: 1ffff92000a16f37 R14: ffff88803a815084 R15: 0000000000000010 FS: 00007f172bf306c0(0000) GS:ffff88805aa00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f172b3569f0 CR3: 0000000057f12005 CR4: 0000000000770ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> arp_ioctl+0x33f/0x4b0 net/ipv4/arp.c:1261 inet_ioctl+0x314/0x3a0 net/ipv4/af_inet.c:981 sock_do_ioctl+0xdf/0x260 net/socket.c:1204 sock_ioctl+0x3ef/0x650 net/socket.c:1321 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x18e/0x220 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x64/0xce RIP: 0033:0x7f172b262b8d Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f172bf300b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f172b3abf80 RCX: 00007f172b262b8d RDX: 0000000020000000 RSI: 0000000000008954 RDI: 0000000000000003 RBP: 00007f172b2d3493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f172b3abf80 R15: 00007f172bf10000 </TASK> Reported-by: syzkaller <[email protected]> Reported-by: Bjoern Doebel <[email protected]> Fixes: 1da177e ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Sasha Levin <[email protected]>

commit a7d6027 upstream. syzkaller reported an overflown write in arp_req_get(). [0] When ioctl(SIOCGARP) is issued, arp_req_get() looks up an neighbour entry and copies neigh->ha to struct arpreq.arp_ha.sa_data. The arp_ha here is struct sockaddr, not struct sockaddr_storage, so the sa_data buffer is just 14 bytes. In the splat below, 2 bytes are overflown to the next int field, arp_flags. We initialise the field just after the memcpy(), so it's not a problem. However, when dev->addr_len is greater than 22 (e.g. MAX_ADDR_LEN), arp_netmask is overwritten, which could be set as htonl(0xFFFFFFFFUL) in arp_ioctl() before calling arp_req_get(). To avoid the overflow, let's limit the max length of memcpy(). Note that commit b5f0de6 ("net: dev: Convert sa_data to flexible array in struct sockaddr") just silenced syzkaller. [0]: memcpy: detected field-spanning write (size 16) of single field "r->arp_ha.sa_data" at net/ipv4/arp.c:1128 (size 14) WARNING: CPU: 0 PID: 144638 at net/ipv4/arp.c:1128 arp_req_get+0x411/0x4a0 net/ipv4/arp.c:1128 Modules linked in: CPU: 0 PID: 144638 Comm: syz-executor.4 Not tainted 6.1.74 torvalds#31 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.16.0-debian-1.16.0-5 04/01/2014 RIP: 0010:arp_req_get+0x411/0x4a0 net/ipv4/arp.c:1128 Code: fd ff ff e8 41 42 de fb b9 0e 00 00 00 4c 89 fe 48 c7 c2 20 6d ab 87 48 c7 c7 80 6d ab 87 c6 05 25 af 72 04 01 e8 5f 8d ad fb <0f> 0b e9 6c fd ff ff e8 13 42 de fb be 03 00 00 00 4c 89 e7 e8 a6 RSP: 0018:ffffc900050b7998 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88803a815000 RCX: 0000000000000000 RDX: 0000000000000000 RSI: ffffffff8641a44a RDI: 0000000000000001 RBP: ffffc900050b7a98 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 203a7970636d656d R12: ffff888039c54000 R13: 1ffff92000a16f37 R14: ffff88803a815084 R15: 0000000000000010 FS: 00007f172bf306c0(0000) GS:ffff88805aa00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f172b3569f0 CR3: 0000000057f12005 CR4: 0000000000770ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 PKRU: 55555554 Call Trace: <TASK> arp_ioctl+0x33f/0x4b0 net/ipv4/arp.c:1261 inet_ioctl+0x314/0x3a0 net/ipv4/af_inet.c:981 sock_do_ioctl+0xdf/0x260 net/socket.c:1204 sock_ioctl+0x3ef/0x650 net/socket.c:1321 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __x64_sys_ioctl+0x18e/0x220 fs/ioctl.c:856 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x37/0x90 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x64/0xce RIP: 0033:0x7f172b262b8d Code: 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f172bf300b8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f172b3abf80 RCX: 00007f172b262b8d RDX: 0000000020000000 RSI: 0000000000008954 RDI: 0000000000000003 RBP: 00007f172b2d3493 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 000000000000000b R14: 00007f172b3abf80 R15: 00007f172bf10000 </TASK> Reported-by: syzkaller <[email protected]> Reported-by: Bjoern Doebel <[email protected]> Fixes: 1da177e ("Linux-2.6.12-rc2") Signed-off-by: Kuniyuki Iwashima <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Paolo Abeni <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]>

The `proc-macro2` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `syn` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `proc-macro2` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `syn` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `proc-macro2` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `syn` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The current implementation of the mov instruction with sign extension has the following problems: 1. It clobbers the source register if it is not stacked because it sign extends the source and then moves it to the destination. 2. If the dst_reg is stacked, the current code doesn't write the value back in case of 64-bit mov. 3. There is room for improvement by emitting fewer instructions. The steps for fixing this and the instructions emitted by the JIT are explained below with examples in all combinations: Case A: offset == 32: ===================== Case A.1: src and dst are stacked registers: -------------------------------------------- 1. Load src_lo into tmp_lo 2. Store tmp_lo into dst_lo 3. Sign extend tmp_lo into tmp_hi 4. Store tmp_hi to dst_hi Example: r3 = (s32)r3 r3 is a stacked register ldr r6, [r11, #-16] // Load r3_lo into tmp_lo // str to dst_lo is not emitted because src_lo == dst_lo asr r7, r6, torvalds#31 // Sign extend tmp_lo into tmp_hi str r7, [r11, #-12] // Store tmp_hi into r3_hi Case A.2: src is stacked but dst is not: ---------------------------------------- 1. Load src_lo into dst_lo 2. Sign extend dst_lo into dst_hi Example: r6 = (s32)r3 r6 maps to {ARM_R5, ARM_R4} and r3 is stacked ldr r4, [r11, #-16] // Load r3_lo into r6_lo asr r5, r4, torvalds#31 // Sign extend r6_lo into r6_hi Case A.3: src is not stacked but dst is stacked: ------------------------------------------------ 1. Store src_lo into dst_lo 2. Sign extend src_lo into tmp_hi 3. Store tmp_hi to dst_hi Example: r3 = (s32)r6 r3 is stacked and r6 maps to {ARM_R5, ARM_R4} str r4, [r11, #-16] // Store r6_lo to r3_lo asr r7, r4, torvalds#31 // Sign extend r6_lo into tmp_hi str r7, [r11, #-12] // Store tmp_hi to dest_hi Case A.4: Both src and dst are not stacked: ------------------------------------------- 1. Mov src_lo into dst_lo 2. Sign extend src_lo into dst_hi Example: (bf) r6 = (s32)r6 r6 maps to {ARM_R5, ARM_R4} // Mov not emitted because dst == src asr r5, r4, torvalds#31 // Sign extend r6_lo into r6_hi Case B: offset != 32: ===================== Case B.1: src and dst are stacked registers: -------------------------------------------- 1. Load src_lo into tmp_lo 2. Sign extend tmp_lo according to offset. 3. Store tmp_lo into dst_lo 4. Sign extend tmp_lo into tmp_hi 5. Store tmp_hi to dst_hi Example: r9 = (s8)r3 r9 and r3 are both stacked registers ldr r6, [r11, #-16] // Load r3_lo into tmp_lo lsl r6, r6, torvalds#24 // Sign extend tmp_lo asr r6, r6, torvalds#24 // .. str r6, [r11, #-56] // Store tmp_lo to r9_lo asr r7, r6, torvalds#31 // Sign extend tmp_lo to tmp_hi str r7, [r11, #-52] // Store tmp_hi to r9_hi Case B.2: src is stacked but dst is not: ---------------------------------------- 1. Load src_lo into dst_lo 2. Sign extend dst_lo according to offset. 3. Sign extend tmp_lo into dst_hi Example: r6 = (s8)r3 r6 maps to {ARM_R5, ARM_R4} and r3 is stacked ldr r4, [r11, #-16] // Load r3_lo to r6_lo lsl r4, r4, torvalds#24 // Sign extend r6_lo asr r4, r4, torvalds#24 // .. asr r5, r4, torvalds#31 // Sign extend r6_lo into r6_hi Case B.3: src is not stacked but dst is stacked: ------------------------------------------------ 1. Sign extend src_lo into tmp_lo according to offset. 2. Store tmp_lo into dst_lo. 3. Sign extend src_lo into tmp_hi. 4. Store tmp_hi to dst_hi. Example: r3 = (s8)r1 r3 is stacked and r1 maps to {ARM_R3, ARM_R2} lsl r6, r2, torvalds#24 // Sign extend r1_lo to tmp_lo asr r6, r6, torvalds#24 // .. str r6, [r11, #-16] // Store tmp_lo to r3_lo asr r7, r6, torvalds#31 // Sign extend tmp_lo to tmp_hi str r7, [r11, #-12] // Store tmp_hi to r3_hi Case B.4: Both src and dst are not stacked: ------------------------------------------- 1. Sign extend src_lo into dst_lo according to offset. 2. Sign extend dst_lo into dst_hi. Example: r6 = (s8)r1 r6 maps to {ARM_R5, ARM_R4} and r1 maps to {ARM_R3, ARM_R2} lsl r4, r2, torvalds#24 // Sign extend r1_lo to r6_lo asr r4, r4, torvalds#24 // .. asr r5, r4, torvalds#31 // Sign extend r6_lo to r6_hi Fixes: fc83265 ("arm32, bpf: add support for sign-extension mov instruction") Reported-by: [email protected] Signed-off-by: Puranjay Mohan <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Russell King (Oracle) <[email protected]> Closes: https://lore.kernel.org/all/[email protected] Link: https://lore.kernel.org/bpf/[email protected]

[ Upstream commit c6f4850 ] The current implementation of the mov instruction with sign extension has the following problems: 1. It clobbers the source register if it is not stacked because it sign extends the source and then moves it to the destination. 2. If the dst_reg is stacked, the current code doesn't write the value back in case of 64-bit mov. 3. There is room for improvement by emitting fewer instructions. The steps for fixing this and the instructions emitted by the JIT are explained below with examples in all combinations: Case A: offset == 32: ===================== Case A.1: src and dst are stacked registers: -------------------------------------------- 1. Load src_lo into tmp_lo 2. Store tmp_lo into dst_lo 3. Sign extend tmp_lo into tmp_hi 4. Store tmp_hi to dst_hi Example: r3 = (s32)r3 r3 is a stacked register ldr r6, [r11, #-16] // Load r3_lo into tmp_lo // str to dst_lo is not emitted because src_lo == dst_lo asr r7, r6, torvalds#31 // Sign extend tmp_lo into tmp_hi str r7, [r11, #-12] // Store tmp_hi into r3_hi Case A.2: src is stacked but dst is not: ---------------------------------------- 1. Load src_lo into dst_lo 2. Sign extend dst_lo into dst_hi Example: r6 = (s32)r3 r6 maps to {ARM_R5, ARM_R4} and r3 is stacked ldr r4, [r11, #-16] // Load r3_lo into r6_lo asr r5, r4, torvalds#31 // Sign extend r6_lo into r6_hi Case A.3: src is not stacked but dst is stacked: ------------------------------------------------ 1. Store src_lo into dst_lo 2. Sign extend src_lo into tmp_hi 3. Store tmp_hi to dst_hi Example: r3 = (s32)r6 r3 is stacked and r6 maps to {ARM_R5, ARM_R4} str r4, [r11, #-16] // Store r6_lo to r3_lo asr r7, r4, torvalds#31 // Sign extend r6_lo into tmp_hi str r7, [r11, #-12] // Store tmp_hi to dest_hi Case A.4: Both src and dst are not stacked: ------------------------------------------- 1. Mov src_lo into dst_lo 2. Sign extend src_lo into dst_hi Example: (bf) r6 = (s32)r6 r6 maps to {ARM_R5, ARM_R4} // Mov not emitted because dst == src asr r5, r4, torvalds#31 // Sign extend r6_lo into r6_hi Case B: offset != 32: ===================== Case B.1: src and dst are stacked registers: -------------------------------------------- 1. Load src_lo into tmp_lo 2. Sign extend tmp_lo according to offset. 3. Store tmp_lo into dst_lo 4. Sign extend tmp_lo into tmp_hi 5. Store tmp_hi to dst_hi Example: r9 = (s8)r3 r9 and r3 are both stacked registers ldr r6, [r11, #-16] // Load r3_lo into tmp_lo lsl r6, r6, torvalds#24 // Sign extend tmp_lo asr r6, r6, torvalds#24 // .. str r6, [r11, #-56] // Store tmp_lo to r9_lo asr r7, r6, torvalds#31 // Sign extend tmp_lo to tmp_hi str r7, [r11, #-52] // Store tmp_hi to r9_hi Case B.2: src is stacked but dst is not: ---------------------------------------- 1. Load src_lo into dst_lo 2. Sign extend dst_lo according to offset. 3. Sign extend tmp_lo into dst_hi Example: r6 = (s8)r3 r6 maps to {ARM_R5, ARM_R4} and r3 is stacked ldr r4, [r11, #-16] // Load r3_lo to r6_lo lsl r4, r4, torvalds#24 // Sign extend r6_lo asr r4, r4, torvalds#24 // .. asr r5, r4, torvalds#31 // Sign extend r6_lo into r6_hi Case B.3: src is not stacked but dst is stacked: ------------------------------------------------ 1. Sign extend src_lo into tmp_lo according to offset. 2. Store tmp_lo into dst_lo. 3. Sign extend src_lo into tmp_hi. 4. Store tmp_hi to dst_hi. Example: r3 = (s8)r1 r3 is stacked and r1 maps to {ARM_R3, ARM_R2} lsl r6, r2, torvalds#24 // Sign extend r1_lo to tmp_lo asr r6, r6, torvalds#24 // .. str r6, [r11, #-16] // Store tmp_lo to r3_lo asr r7, r6, torvalds#31 // Sign extend tmp_lo to tmp_hi str r7, [r11, #-12] // Store tmp_hi to r3_hi Case B.4: Both src and dst are not stacked: ------------------------------------------- 1. Sign extend src_lo into dst_lo according to offset. 2. Sign extend dst_lo into dst_hi. Example: r6 = (s8)r1 r6 maps to {ARM_R5, ARM_R4} and r1 maps to {ARM_R3, ARM_R2} lsl r4, r2, torvalds#24 // Sign extend r1_lo to r6_lo asr r4, r4, torvalds#24 // .. asr r5, r4, torvalds#31 // Sign extend r6_lo to r6_hi Fixes: fc83265 ("arm32, bpf: add support for sign-extension mov instruction") Reported-by: [email protected] Signed-off-by: Puranjay Mohan <[email protected]> Signed-off-by: Daniel Borkmann <[email protected]> Reviewed-by: Russell King (Oracle) <[email protected]> Closes: https://lore.kernel.org/all/[email protected] Link: https://lore.kernel.org/bpf/[email protected] Signed-off-by: Sasha Levin <[email protected]>

The `proc-macro2` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `syn` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `proc-macro2` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The `syn` crate depends on the `unicode-ident` crate to determine whether characters have the XID_Start or XID_Continue properties according to Unicode Standard Annex torvalds#31. However, we only need ASCII identifiers in the kernel, thus we can simplify the check and remove completely that dependency. Signed-off-by: Miguel Ojeda <[email protected]>

The commit f7866c3 ("bpf: Fix null pointer dereference in resolve_prog_type() for BPF_PROG_TYPE_EXT") fixed the following panic, which was caused by updating attached freplace prog to PROG_ARRAY map. But, it does not support updating attached freplace prog to PROG_ARRAY map. [309049.036402] BUG: kernel NULL pointer dereference, address: 0000000000000004 [309049.036419] #PF: supervisor read access in kernel mode [309049.036426] #PF: error_code(0x0000) - not-present page [309049.036432] PGD 0 P4D 0 [309049.036437] Oops: 0000 [#1] PREEMPT SMP NOPTI [309049.036444] CPU: 2 PID: 788148 Comm: test_progs Not tainted 6.8.0-31-generic torvalds#31-Ubuntu [309049.036465] Hardware name: VMware, Inc. VMware20,1/440BX Desktop Reference Platform, BIOS VMW201.00V.21805430.B64.2305221830 05/22/2023 [309049.036477] RIP: 0010:bpf_prog_map_compatible+0x2a/0x140 [309049.036488] Code: 0f 1f 44 00 00 55 48 89 e5 41 57 41 56 49 89 fe 41 55 41 54 53 44 8b 6e 04 48 89 f3 41 83 fd 1c 75 0c 48 8b 46 38 48 8b 40 70 <44> 8b 68 04 f6 43 03 01 75 1c 48 8b 43 38 44 0f b6 a0 89 00 00 00 [309049.036505] RSP: 0018:ffffb2e080fd7ce0 EFLAGS: 00010246 [309049.036513] RAX: 0000000000000000 RBX: ffffb2e0807c1000 RCX: 0000000000000000 [309049.036521] RDX: 0000000000000000 RSI: ffffb2e0807c1000 RDI: ffff990290259e00 [309049.036528] RBP: ffffb2e080fd7d08 R08: 0000000000000000 R09: 0000000000000000 [309049.036536] R10: 0000000000000000 R11: 0000000000000000 R12: ffff990290259e00 [309049.036543] R13: 000000000000001c R14: ffff990290259e00 R15: ffff99028e29c400 [309049.036551] FS: 00007b82cbc28140(0000) GS:ffff9903b3f00000(0000) knlGS:0000000000000000 [309049.036559] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [309049.036566] CR2: 0000000000000004 CR3: 0000000101286002 CR4: 00000000003706f0 [309049.036573] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [309049.036581] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [309049.036588] Call Trace: [309049.036592] <TASK> [309049.036597] ? show_regs+0x6d/0x80 [309049.036604] ? __die+0x24/0x80 [309049.036619] ? page_fault_oops+0x99/0x1b0 [309049.036628] ? do_user_addr_fault+0x2ee/0x6b0 [309049.036634] ? exc_page_fault+0x83/0x1b0 [309049.036641] ? asm_exc_page_fault+0x27/0x30 [309049.036649] ? bpf_prog_map_compatible+0x2a/0x140 [309049.036656] prog_fd_array_get_ptr+0x2c/0x70 [309049.036664] bpf_fd_array_map_update_elem+0x37/0x130 [309049.036671] bpf_map_update_value+0x1d3/0x260 [309049.036677] map_update_elem+0x1fa/0x360 [309049.036683] __sys_bpf+0x54c/0xa10 [309049.036689] __x64_sys_bpf+0x1a/0x30 [309049.036694] x64_sys_call+0x1936/0x25c0 [309049.036700] do_syscall_64+0x7f/0x180 [309049.036706] ? do_syscall_64+0x8c/0x180 [309049.036712] ? do_syscall_64+0x8c/0x180 [309049.036717] ? irqentry_exit+0x43/0x50 [309049.036723] ? common_interrupt+0x54/0xb0 [309049.036729] entry_SYSCALL_64_after_hwframe+0x73/0x7b Since commit 1c123c5 ("bpf: Resolve fext program type when checking map compatibility"), freplace prog can be used as tail-callee of its target prog. And the commit 3aac1ea ("bpf: Move prog->aux->linked_prog and trampoline into bpf_link on attach") sets prog->aux->dst_prog as NULL when attach freplace prog to its target. Then, as for following example: tailcall_freplace.c: // SPDX-License-Identifier: GPL-2.0 \#include <linux/bpf.h> \#include <bpf/bpf_helpers.h> \#include "bpf_legacy.h" struct { __uint(type, BPF_MAP_TYPE_PROG_ARRAY); __uint(max_entries, 1); __uint(key_size, sizeof(__u32)); __uint(value_size, sizeof(__u32)); } jmp_table SEC(".maps"); int count = 0; __noinline int subprog(struct __sk_buff *skb) { volatile int ret = 1; count++; bpf_tail_call_static(skb, &jmp_table, 0); return ret; } SEC("freplace") int entry(struct __sk_buff *skb) { return subprog(skb); } char __license[] SEC("license") = "GPL"; tc_bpf2bpf.c: // SPDX-License-Identifier: GPL-2.0 \#include <linux/bpf.h> \#include <bpf/bpf_helpers.h> \#include "bpf_legacy.h" __noinline int subprog(struct __sk_buff *skb) { volatile int ret = 1; return ret; } SEC("tc") int entry(struct __sk_buff *skb) { return subprog(skb); } char __license[] SEC("license") = "GPL"; And freplace entry prog's target is the tc subprog. After loading, the freplace jmp_table's owner type is BPF_PROG_TYPE_SCHED_CLS. Next, after attaching freplace prog to tc subprog, its prog->aux-> dst_prog is NULL. Next, when update freplace prog to jmp_table, bpf_prog_map_compatible() returns false because resolve_prog_type() returns BPF_PROG_TYPE_EXT instead of BPF_PROG_TYPE_SCHED_CLS. With this patch, resolve_prog_type() returns BPF_PROG_TYPE_SCHED_CLS to support updating attached freplace prog to PROG_ARRY map for this example. Fixes: f7866c3 ("bpf: Fix null pointer dereference in resolve_prog_type() for BPF_PROG_TYPE_EXT") Cc: Toke Høiland-Jørgensen <[email protected]> Cc: Martin KaFai Lau <[email protected]> Signed-off-by: Leon Hwang <[email protected]>

jmarcher · 2024-08-29T08:21:40Z

I always find it funny how many people find time to start a PR here and it is just utterly the worst changes ever

mmatviyiv · 2024-08-29T10:56:38Z

@jmarcher I always find it funny how some people find time to search for a random 10yo PR to comment, and it ends up being the most useless opinion contribution ever

jmarcher · 2024-08-29T10:59:36Z

@mmatviyiv It is not, look even after 10 years it worked, you are here to see how meaningless this PR is, thanks for your attention

kerosina · 2024-08-29T23:39:32Z

@mmatviyiv It is not, look even after 10 years it worked, you are here to see how meaningless this PR is, thanks for your attention

he was probably curious on what was the oldest open pull request, like me.
This PR was probably useful at its time (the touchpad should be supported by now). whats even the point of commenting "I always find it funny how many people find time to start a PR here and it is just utterly the worst changes ever" everywhere

jmarcher · 2024-08-30T07:00:53Z

The point is that people just want to "contribute" to the Linux kernel but without even know a sh** about it and how to contribute, it literally takes 10 seconds to read how to contribute correctly: https://kernelnewbies.org/FirstKernelPatch

kerosina · 2024-08-31T03:03:16Z

The point is that people just want to "contribute" to the Linux kernel but without even know a sh** about it and how to contribute, it literally takes 10 seconds to read how to contribute correctly: https://kernelnewbies.org/FirstKernelPatch

did that site exist 11 years ago?

jmarcher · 2024-08-31T05:02:07Z

The point is that people just want to "contribute" to the Linux kernel but without even know a sh** about it and how to contribute, it literally takes 10 seconds to read how to contribute correctly: https://kernelnewbies.org/FirstKernelPatch

did that site exist 11 years ago?

Yes

Running "modprobe amdgpu" the second time (followed by a modprobe -r amdgpu) causes a call trace like: [ 845.212163] Memory manager not clean during takedown. [ 845.212170] WARNING: CPU: 4 PID: 2481 at drivers/gpu/drm/drm_mm.c:999 drm_mm_takedown+0x2b/0x40 [ 845.212177] Modules linked in: amdgpu(OE-) amddrm_ttm_helper(OE) amddrm_buddy(OE) amdxcp(OE) amd_sched(OE) drm_exec drm_suballoc_helper drm_display_helper i2c_algo_bit amdttm(OE) amdkcl(OE) cec rc_core sunrpc qrtr intel_rapl_msr intel_rapl_common snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_usb_audio snd_hda_codec snd_usbmidi_lib kvm_amd snd_hda_core snd_ump mc snd_hwdep kvm snd_pcm snd_seq_midi snd_seq_midi_event irqbypass crct10dif_pclmul snd_rawmidi polyval_clmulni polyval_generic ghash_clmulni_intel sha256_ssse3 sha1_ssse3 snd_seq aesni_intel crypto_simd snd_seq_device cryptd snd_timer mfd_aaeon asus_nb_wmi eeepc_wmi joydev asus_wmi snd ledtrig_audio sparse_keymap ccp wmi_bmof input_leds k10temp i2c_piix4 platform_profile rapl soundcore gpio_amdpt mac_hid binfmt_misc msr parport_pc ppdev lp parport efi_pstore nfnetlink dmi_sysfs ip_tables x_tables autofs4 hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid ahci xhci_pci igc crc32_pclmul libahci xhci_pci_renesas video [ 845.212284] wmi [last unloaded: amddrm_ttm_helper(OE)] [ 845.212290] CPU: 4 PID: 2481 Comm: modprobe Tainted: G W OE 6.8.0-31-generic torvalds#31-Ubuntu [ 845.212296] RIP: 0010:drm_mm_takedown+0x2b/0x40 [ 845.212300] Code: 1f 44 00 00 48 8b 47 38 48 83 c7 38 48 39 f8 75 09 31 c0 31 ff e9 90 2e 86 00 55 48 c7 c7 d0 f6 8e 8a 48 89 e5 e8 f5 db 45 ff <0f> 0b 5d 31 c0 31 ff e9 74 2e 86 00 66 0f 1f 84 00 00 00 00 00 90 [ 845.212302] RSP: 0018:ffffb11302127ae0 EFLAGS: 00010246 [ 845.212305] RAX: 0000000000000000 RBX: ffff92aa5020fc08 RCX: 0000000000000000 [ 845.212307] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 845.212309] RBP: ffffb11302127ae0 R08: 0000000000000000 R09: 0000000000000000 [ 845.212310] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004 [ 845.212312] R13: ffff92aa50200000 R14: ffff92aa5020fb10 R15: ffff92aa5020faa0 [ 845.212313] FS: 0000707dd7c7c080(0000) GS:ffff92b93de00000(0000) knlGS:0000000000000000 [ 845.212316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 845.212318] CR2: 00007d48b0aee200 CR3: 0000000115a58000 CR4: 0000000000f50ef0 [ 845.212320] PKRU: 55555554 [ 845.212321] Call Trace: [ 845.212323] <TASK> [ 845.212328] ? show_regs+0x6d/0x80 [ 845.212333] ? __warn+0x89/0x160 [ 845.212339] ? drm_mm_takedown+0x2b/0x40 [ 845.212344] ? report_bug+0x17e/0x1b0 [ 845.212350] ? handle_bug+0x51/0xa0 [ 845.212355] ? exc_invalid_op+0x18/0x80 [ 845.212359] ? asm_exc_invalid_op+0x1b/0x20 [ 845.212366] ? drm_mm_takedown+0x2b/0x40 [ 845.212371] amdgpu_gtt_mgr_fini+0xa9/0x130 [amdgpu] [ 845.212645] amdgpu_ttm_fini+0x264/0x340 [amdgpu] [ 845.212770] amdgpu_bo_fini+0x2e/0xc0 [amdgpu] [ 845.212894] gmc_v12_0_sw_fini+0x2a/0x40 [amdgpu] [ 845.213036] amdgpu_device_fini_sw+0x11a/0x590 [amdgpu] [ 845.213159] amdgpu_driver_release_kms+0x16/0x40 [amdgpu] [ 845.213302] devm_drm_dev_init_release+0x5e/0x90 [ 845.213305] devm_action_release+0x12/0x30 [ 845.213308] release_nodes+0x42/0xd0 [ 845.213311] devres_release_all+0x97/0xe0 [ 845.213314] device_unbind_cleanup+0x12/0x80 [ 845.213317] device_release_driver_internal+0x230/0x270 [ 845.213319] ? srso_alias_return_thunk+0x5/0xfbef5 This is caused by lost memory during early init phase. First time driver is removed, memory is freed but when second time the driver is inserted, VBIOS dmub is not active, since the PSP policy is to retain the driver loaded version on subsequent warm boots. Hence, communication with VBIOS DMUB fails. Fix this by aborting further communication with vbios dmub and release the memory immediately. Fixes: f59549c ("drm/amd/display: free bo used for dmub bounding box") Reviewed-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> Signed-off-by: Rodrigo Siqueira <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]>

Fix build for Linux 6.1 and bump version Closes torvalds#31 See merge request ddcci-driver-linux/ddcci-driver-linux!10

[ Upstream commit d4f36e5 ] Running "modprobe amdgpu" the second time (followed by a modprobe -r amdgpu) causes a call trace like: [ 845.212163] Memory manager not clean during takedown. [ 845.212170] WARNING: CPU: 4 PID: 2481 at drivers/gpu/drm/drm_mm.c:999 drm_mm_takedown+0x2b/0x40 [ 845.212177] Modules linked in: amdgpu(OE-) amddrm_ttm_helper(OE) amddrm_buddy(OE) amdxcp(OE) amd_sched(OE) drm_exec drm_suballoc_helper drm_display_helper i2c_algo_bit amdttm(OE) amdkcl(OE) cec rc_core sunrpc qrtr intel_rapl_msr intel_rapl_common snd_hda_codec_hdmi edac_mce_amd snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_usb_audio snd_hda_codec snd_usbmidi_lib kvm_amd snd_hda_core snd_ump mc snd_hwdep kvm snd_pcm snd_seq_midi snd_seq_midi_event irqbypass crct10dif_pclmul snd_rawmidi polyval_clmulni polyval_generic ghash_clmulni_intel sha256_ssse3 sha1_ssse3 snd_seq aesni_intel crypto_simd snd_seq_device cryptd snd_timer mfd_aaeon asus_nb_wmi eeepc_wmi joydev asus_wmi snd ledtrig_audio sparse_keymap ccp wmi_bmof input_leds k10temp i2c_piix4 platform_profile rapl soundcore gpio_amdpt mac_hid binfmt_misc msr parport_pc ppdev lp parport efi_pstore nfnetlink dmi_sysfs ip_tables x_tables autofs4 hid_logitech_hidpp hid_logitech_dj hid_generic usbhid hid ahci xhci_pci igc crc32_pclmul libahci xhci_pci_renesas video [ 845.212284] wmi [last unloaded: amddrm_ttm_helper(OE)] [ 845.212290] CPU: 4 PID: 2481 Comm: modprobe Tainted: G W OE 6.8.0-31-generic torvalds#31-Ubuntu [ 845.212296] RIP: 0010:drm_mm_takedown+0x2b/0x40 [ 845.212300] Code: 1f 44 00 00 48 8b 47 38 48 83 c7 38 48 39 f8 75 09 31 c0 31 ff e9 90 2e 86 00 55 48 c7 c7 d0 f6 8e 8a 48 89 e5 e8 f5 db 45 ff <0f> 0b 5d 31 c0 31 ff e9 74 2e 86 00 66 0f 1f 84 00 00 00 00 00 90 [ 845.212302] RSP: 0018:ffffb11302127ae0 EFLAGS: 00010246 [ 845.212305] RAX: 0000000000000000 RBX: ffff92aa5020fc08 RCX: 0000000000000000 [ 845.212307] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 845.212309] RBP: ffffb11302127ae0 R08: 0000000000000000 R09: 0000000000000000 [ 845.212310] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000004 [ 845.212312] R13: ffff92aa50200000 R14: ffff92aa5020fb10 R15: ffff92aa5020faa0 [ 845.212313] FS: 0000707dd7c7c080(0000) GS:ffff92b93de00000(0000) knlGS:0000000000000000 [ 845.212316] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 845.212318] CR2: 00007d48b0aee200 CR3: 0000000115a58000 CR4: 0000000000f50ef0 [ 845.212320] PKRU: 55555554 [ 845.212321] Call Trace: [ 845.212323] <TASK> [ 845.212328] ? show_regs+0x6d/0x80 [ 845.212333] ? __warn+0x89/0x160 [ 845.212339] ? drm_mm_takedown+0x2b/0x40 [ 845.212344] ? report_bug+0x17e/0x1b0 [ 845.212350] ? handle_bug+0x51/0xa0 [ 845.212355] ? exc_invalid_op+0x18/0x80 [ 845.212359] ? asm_exc_invalid_op+0x1b/0x20 [ 845.212366] ? drm_mm_takedown+0x2b/0x40 [ 845.212371] amdgpu_gtt_mgr_fini+0xa9/0x130 [amdgpu] [ 845.212645] amdgpu_ttm_fini+0x264/0x340 [amdgpu] [ 845.212770] amdgpu_bo_fini+0x2e/0xc0 [amdgpu] [ 845.212894] gmc_v12_0_sw_fini+0x2a/0x40 [amdgpu] [ 845.213036] amdgpu_device_fini_sw+0x11a/0x590 [amdgpu] [ 845.213159] amdgpu_driver_release_kms+0x16/0x40 [amdgpu] [ 845.213302] devm_drm_dev_init_release+0x5e/0x90 [ 845.213305] devm_action_release+0x12/0x30 [ 845.213308] release_nodes+0x42/0xd0 [ 845.213311] devres_release_all+0x97/0xe0 [ 845.213314] device_unbind_cleanup+0x12/0x80 [ 845.213317] device_release_driver_internal+0x230/0x270 [ 845.213319] ? srso_alias_return_thunk+0x5/0xfbef5 This is caused by lost memory during early init phase. First time driver is removed, memory is freed but when second time the driver is inserted, VBIOS dmub is not active, since the PSP policy is to retain the driver loaded version on subsequent warm boots. Hence, communication with VBIOS DMUB fails. Fix this by aborting further communication with vbios dmub and release the memory immediately. Fixes: f59549c ("drm/amd/display: free bo used for dmub bounding box") Reviewed-by: Rodrigo Siqueira <[email protected]> Signed-off-by: Aurabindo Pillai <[email protected]> Signed-off-by: Rodrigo Siqueira <[email protected]> Tested-by: Daniel Wheeler <[email protected]> Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Sasha Levin <[email protected]>

there is a global spinlock between reset and clk, if locked in reset, then print some debug information, maybe dead-lock when uart driver try to disable clk. Backtrace stopped: frame did not save the PC (gdb) thread 4 [Switching to thread 4 (Thread 4)] #0 cpu_relax () at ./arch/riscv/include/asm/vdso/processor.h:22 22 ./arch/riscv/include/asm/vdso/processor.h: No such file or directory. (gdb) bt #0 cpu_relax () at ./arch/riscv/include/asm/vdso/processor.h:22 #1 arch_spin_lock (lock=lock@entry=0xffffffff81a57cd0 <enable_lock>) at ./include/asm-generic/spinlock.h:49 #2 do_raw_spin_lock (lock=lock@entry=0xffffffff81a57cd0 <enable_lock>) at ./include/linux/spinlock.h:186 #3 0xffffffff80aa21ce in __raw_spin_lock_irqsave (lock=0xffffffff81a57cd0 <enable_lock>) at ./include/linux/spinlock_api_smp.h:111 #4 _raw_spin_lock_irqsave (lock=lock@entry=0xffffffff81a57cd0 <enable_lock>) at kernel/locking/spinlock.c:162 #5 0xffffffff80563416 in clk_enable_lock () at ./include/linux/spinlock.h:325 torvalds#6 0xffffffff805648de in clk_core_disable_lock (core=0xffffffd900512500) at drivers/clk/clk.c:1062 torvalds#7 0xffffffff8056527e in clk_disable (clk=<optimized out>) at drivers/clk/clk.c:1084 torvalds#8 clk_disable (clk=0xffffffd9048b5100) at drivers/clk/clk.c:1079 torvalds#9 0xffffffff8059e5d4 in serial_pxa_console_write (co=<optimized out>, s=0xffffffff81a68250 <text> "[ 14.708612] [RESET][spacemit_reset_set][373]:assert = 1, id = 59 \n", count=<optimized out>) at drivers/tty/serial/pxa_k1x.c:1724 torvalds#10 0xffffffff8004a34c in call_console_driver (dropped_text=0xffffffff81a68650 <dropped_text> "", len=69, text=0xffffffff81a68250 <text> "[ 14.708612] [RESET][spacemit_reset_set][373]:assert = 1, id = 59 \n", con=0xffffffff81964c10 <serial_pxa_console>) at kernel/printk/printk.c:1942 torvalds#11 console_emit_next_record (con=con@entry=0xffffffff81964c10 <serial_pxa_console>, ext_text=<optimized out>, dropped_text=0xffffffff81a68650 <dropped_text> "", handover=0xffffffc80578baa7, text=0xffffffff81a68250 <text> "[ 14.708612] [RESET][spacemit_reset_set][373]:assert = 1, id = 59 \n") at kernel/printk/printk.c:2731 torvalds#12 0xffffffff8004a49a in console_flush_all (handover=0xffffffc80578baa7, next_seq=<synthetic pointer>, do_cond_resched=false) at kernel/printk/printk.c:2793 torvalds#13 console_unlock () at kernel/printk/printk.c:2860 torvalds#14 0xffffffff8004b388 in vprintk_emit (facility=facility@entry=0, level=<optimized out>, level@entry=-1, dev_info=dev_info@entry=0x0, fmt=<optimized out>, args=<optimized out>) at kernel/printk/printk.c:2268 torvalds#15 0xffffffff8004b3ae in vprintk_default (fmt=<optimized out>, args=<optimized out>) at kernel/printk/printk.c:2279 torvalds#16 0xffffffff8004b646 in vprintk (fmt=fmt@entry=0xffffffff813be470 "\001\066[RESET][%s][%d]:assert = %d, id = %d \n", args=args@entry=0xffffffc80578bbd8) at kernel/printk/printk_safe.c:50 torvalds#17 0xffffffff80a880d6 in _printk (fmt=fmt@entry=0xffffffff813be470 "\001\066[RESET][%s][%d]:assert = %d, id = %d \n") at kernel/printk/printk.c:2289 torvalds#18 0xffffffff80a90bb6 in spacemit_reset_set (rcdev=rcdev@entry=0xffffffff81f563a8 <k1x_reset_controller+8>, id=id@entry=59, assert=assert@entry=true) at drivers/reset/reset-spacemit-k1x.c:373 torvalds#19 0xffffffff805823b6 in spacemit_reset_update (assert=true, id=59, rcdev=0xffffffff81f563a8 <k1x_reset_controller+8>) at drivers/reset/reset-spacemit-k1x.c:401 torvalds#20 spacemit_reset_update (assert=true, id=59, rcdev=0xffffffff81f563a8 <k1x_reset_controller+8>) at drivers/reset/reset-spacemit-k1x.c:387 torvalds#21 spacemit_reset_assert (rcdev=0xffffffff81f563a8 <k1x_reset_controller+8>, id=59) at drivers/reset/reset-spacemit-k1x.c:413 torvalds#22 0xffffffff8058158e in reset_control_assert (rstc=0xffffffd902b2f280) at drivers/reset/core.c:485 torvalds#23 0xffffffff807ccf96 in cpp_disable_clocks (cpp_dev=cpp_dev@entry=0xffffffd904cc9040) at drivers/media/platform/spacemit/camera/cam_cpp/k1x_cpp.c:960 torvalds#24 0xffffffff807cd0b2 in cpp_release_hardware (cpp_dev=cpp_dev@entry=0xffffffd904cc9040) at drivers/media/platform/spacemit/camera/cam_cpp/k1x_cpp.c:1038 torvalds#25 0xffffffff807cd990 in cpp_close_node (sd=<optimized out>, fh=<optimized out>) at drivers/media/platform/spacemit/camera/cam_cpp/k1x_cpp.c:1135 torvalds#26 0xffffffff8079525e in subdev_close (file=0xffffffd906645d00) at drivers/media/v4l2-core/v4l2-subdev.c:105 torvalds#27 0xffffffff8078e49e in v4l2_release (inode=<optimized out>, filp=0xffffffd906645d00) at drivers/media/v4l2-core/v4l2-dev.c:459 torvalds#28 0xffffffff80154974 in __fput (file=0xffffffd906645d00) at fs/file_table.c:320 torvalds#29 0xffffffff80154aa2 in ____fput (work=<optimized out>) at fs/file_table.c:348 torvalds#30 0xffffffff8002677e in task_work_run () at kernel/task_work.c:179 torvalds#31 0xffffffff800053b4 in resume_user_mode_work (regs=0xffffffc80578bee0) at ./include/linux/resume_user_mode.h:49 torvalds#32 do_work_pending (regs=0xffffffc80578bee0, thread_info_flags=<optimized out>) at arch/riscv/kernel/signal.c:478 torvalds#33 0xffffffff800039c6 in handle_exception () at arch/riscv/kernel/entry.S:374 Backtrace stopped: frame did not save the PC (gdb) thread 1 [Switching to thread 1 (Thread 1)] #0 0xffffffff80047e9c in arch_spin_lock (lock=lock@entry=0xffffffff81a57cd8 <g_cru_lock>) at ./include/asm-generic/spinlock.h:49 49 ./include/asm-generic/spinlock.h: No such file or directory. (gdb) bt #0 0xffffffff80047e9c in arch_spin_lock (lock=lock@entry=0xffffffff81a57cd8 <g_cru_lock>) at ./include/asm-generic/spinlock.h:49 #1 do_raw_spin_lock (lock=lock@entry=0xffffffff81a57cd8 <g_cru_lock>) at ./include/linux/spinlock.h:186 #2 0xffffffff80aa21ce in __raw_spin_lock_irqsave (lock=0xffffffff81a57cd8 <g_cru_lock>) at ./include/linux/spinlock_api_smp.h:111 #3 _raw_spin_lock_irqsave (lock=0xffffffff81a57cd8 <g_cru_lock>) at kernel/locking/spinlock.c:162 #4 0xffffffff8056c4cc in ccu_mix_disable (hw=0xffffffff81956858 <sdh2_clk+120>) at ./include/linux/spinlock.h:325 #5 0xffffffff80564832 in clk_core_disable (core=0xffffffd900529900) at drivers/clk/clk.c:1051 torvalds#6 clk_core_disable (core=0xffffffd900529900) at drivers/clk/clk.c:1031 torvalds#7 0xffffffff805648e6 in clk_core_disable_lock (core=0xffffffd900529900) at drivers/clk/clk.c:1063 torvalds#8 0xffffffff8056527e in clk_disable (clk=<optimized out>) at drivers/clk/clk.c:1084 torvalds#9 clk_disable (clk=clk@entry=0xffffffd904fafa80) at drivers/clk/clk.c:1079 torvalds#10 0xffffffff808bb898 in clk_disable_unprepare (clk=0xffffffd904fafa80) at ./include/linux/clk.h:1085 torvalds#11 0xffffffff808bb916 in spacemit_sdhci_runtime_suspend (dev=<optimized out>) at drivers/mmc/host/sdhci-of-k1x.c:1469 torvalds#12 0xffffffff8066e8e2 in pm_generic_runtime_suspend (dev=<optimized out>) at drivers/base/power/generic_ops.c:25 torvalds#13 0xffffffff80670398 in __rpm_callback (cb=cb@entry=0xffffffff8066e8ca <pm_generic_runtime_suspend>, dev=dev@entry=0xffffffd9018a2810) at drivers/base/power/runtime.c:395 torvalds#14 0xffffffff806704b8 in rpm_callback (cb=cb@entry=0xffffffff8066e8ca <pm_generic_runtime_suspend>, dev=dev@entry=0xffffffd9018a2810) at drivers/base/power/runtime.c:529 torvalds#15 0xffffffff80670bdc in rpm_suspend (dev=0xffffffd9018a2810, rpmflags=<optimized out>) at drivers/base/power/runtime.c:672 torvalds#16 0xffffffff806716de in pm_runtime_work (work=0xffffffd9018a2948) at drivers/base/power/runtime.c:974 torvalds#17 0xffffffff800236f4 in process_one_work (worker=worker@entry=0xffffffd9013ee9c0, work=0xffffffd9018a2948) at kernel/workqueue.c:2289 torvalds#18 0xffffffff80023ba6 in worker_thread (__worker=0xffffffd9013ee9c0) at kernel/workqueue.c:2436 torvalds#19 0xffffffff80028bb2 in kthread (_create=0xffffffd9017de840) at kernel/kthread.c:376 torvalds#20 0xffffffff80003934 in handle_exception () at arch/riscv/kernel/entry.S:249 Backtrace stopped: frame did not save the PC (gdb) Change-Id: Ia95b41ffd6c1893c9c5e9c1c9fc0c155ea902d2c

Fix M1405 netbook touchpad

59bc74e

Added support for Gigabyte M1405 touchpad

aejsmith pushed a commit to aejsmith/linux that referenced this pull request Jun 26, 2015

Merge pull request torvalds#31 from aejsmith/ci20-v3.18-mmc

7324be7

Resolve Wi-Fi stall issues

Kaz205 pushed a commit to Kaz205/linux that referenced this pull request Dec 3, 2024

Merge branch 'master' into 'master'

adf0ee1

Fix build for Linux 6.1 and bump version Closes torvalds#31 See merge request ddcci-driver-linux/ddcci-driver-linux!10

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Fix M1405 netbook touchpad #31

Fix M1405 netbook touchpad #31

mmatviyiv commented Mar 20, 2013

SevenBits commented Apr 3, 2013

jmarcher commented Aug 29, 2024

mmatviyiv commented Aug 29, 2024

jmarcher commented Aug 29, 2024

kerosina commented Aug 29, 2024

jmarcher commented Aug 30, 2024

kerosina commented Aug 31, 2024

jmarcher commented Aug 31, 2024

Fix M1405 netbook touchpad #31

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Fix M1405 netbook touchpad #31

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mmatviyiv commented Mar 20, 2013

SevenBits commented Apr 3, 2013

jmarcher commented Aug 29, 2024

mmatviyiv commented Aug 29, 2024

jmarcher commented Aug 29, 2024

kerosina commented Aug 29, 2024

jmarcher commented Aug 30, 2024

kerosina commented Aug 31, 2024

jmarcher commented Aug 31, 2024