cmd, core, eth, miner: deprecate miner.gastarget flag (#23213)

core/block_validator.go

@@ -103,44 +103,9 @@ func (v *BlockValidator) ValidateState(block *types.Block, statedb *state.StateD
 }
 
 // CalcGasLimit computes the gas limit of the next block after parent. It aims
-// to keep the baseline gas above the provided floor, and increase it towards the
-// ceil if the blocks are full. If the ceil is exceeded, it will always decrease
-// the gas allowance.
-func CalcGasLimit(parentGasUsed, parentGasLimit, gasFloor, gasCeil uint64) uint64 {
-	// contrib = (parentGasUsed * 3 / 2) / 1024
-	contrib := (parentGasUsed + parentGasUsed/2) / params.GasLimitBoundDivisor
-
-	// decay = parentGasLimit / 1024 -1
-	decay := parentGasLimit/params.GasLimitBoundDivisor - 1
-
-	/*
-		strategy: gasLimit of block-to-mine is set based on parent's
-		gasUsed value.  if parentGasUsed > parentGasLimit * (2/3) then we
-		increase it, otherwise lower it (or leave it unchanged if it's right
-		at that usage) the amount increased/decreased depends on how far away
-		from parentGasLimit * (2/3) parentGasUsed is.
-	*/
-	limit := parentGasLimit - decay + contrib
-	if limit < params.MinGasLimit {
-		limit = params.MinGasLimit
-	}
-	// If we're outside our allowed gas range, we try to hone towards them
-	if limit < gasFloor {
-		limit = parentGasLimit + decay
-		if limit > gasFloor {
-			limit = gasFloor
-		}
-	} else if limit > gasCeil {
-		limit = parentGasLimit - decay
-		if limit < gasCeil {
-			limit = gasCeil
-		}
-	}
-	return limit
-}
-
-// CalcGasLimit1559 calculates the next block gas limit under 1559 rules.
-func CalcGasLimit1559(parentGasLimit, desiredLimit uint64) uint64 {
+// to keep the baseline gas close to the provided target, and increase it towards
+// the target if the baseline gas is lower.
+func CalcGasLimit(parentGasLimit, desiredLimit uint64) uint64 {
 	delta := parentGasLimit/params.GasLimitBoundDivisor - 1
 	limit := parentGasLimit
 	if desiredLimit < params.MinGasLimit {