feat: protorev no taker fee (#6861)

* add protorev to whitelist * changelog
osmosis-labs · Nov 13, 2023 · 3e8f73a · 3e8f73a
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -60,6 +60,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 * [#6788](https://github.com/osmosis-labs/osmosis/pull/6788) Improve error message when CL LP fails due to slippage bound hit.
 * [#6858](https://github.com/osmosis-labs/osmosis/pull/6858) Merge mempool improvements from v20
+* [#6861](https://github.com/osmosis-labs/osmosis/pull/6861) Protorev address added to reduced taker fee whitelist
 
 ### API Breaks
 

diff --git a/app/upgrades/v21/upgrades.go b/app/upgrades/v21/upgrades.go
@@ -167,6 +167,12 @@ func CreateUpgradeHandler(
 		// Set CL param:
 		keepers.ConcentratedLiquidityKeeper.SetParam(ctx, concentratedliquiditytypes.KeyHookGasLimit, concentratedliquiditytypes.DefaultContractHookGasLimit)
 
+		// Add protorev to the taker fee exclusion list:
+		protorevModuleAccount := keepers.AccountKeeper.GetModuleAccount(ctx, protorevtypes.ModuleName)
+		poolManagerParams := keepers.PoolManagerKeeper.GetParams(ctx)
+		poolManagerParams.TakerFeeParams.ReducedFeeWhitelist = append(poolManagerParams.TakerFeeParams.ReducedFeeWhitelist, protorevModuleAccount.GetAddress().String())
+		keepers.PoolManagerKeeper.SetParams(ctx, poolManagerParams)
+
 		// Since we are now tracking all protocol rev, we set the accounting height to the current block height for each module
 		// that generates protocol rev.
 		keepers.PoolManagerKeeper.SetTakerFeeTrackerStartHeight(ctx, ctx.BlockHeight())