Merge pull request #14922 from egonelbre/megacheck_miner

miner: fix megacheck warnings

miner/remote_agent.go

@@ -169,7 +169,8 @@ func (a *RemoteAgent) SubmitWork(nonce types.BlockNonce, mixDigest, hash common.
 // RemoteAgent.Start() constantly recreates these channels, so the loop code cannot
 // assume data stability in these member fields.
 func (a *RemoteAgent) loop(workCh chan *Work, quitCh chan struct{}) {
-	ticker := time.Tick(5 * time.Second)
+	ticker := time.NewTicker(5 * time.Second)
+	defer ticker.Stop()
 
 	for {
 		select {
@@ -179,7 +180,7 @@ func (a *RemoteAgent) loop(workCh chan *Work, quitCh chan struct{}) {
 			a.mu.Lock()
 			a.currentWork = work
 			a.mu.Unlock()
-		case <-ticker:
+		case <-ticker.C:
 			// cleanup
 			a.mu.Lock()
 			for hash, work := range a.work {

miner/worker.go

@@ -24,7 +24,6 @@ import (
 	"sync/atomic"
 	"time"
 
-	"github.com/ethereum/go-ethereum/accounts"
 	"github.com/ethereum/go-ethereum/common"
 	"github.com/ethereum/go-ethereum/consensus"
 	"github.com/ethereum/go-ethereum/consensus/misc"
@@ -109,9 +108,6 @@ type worker struct {
 	uncleMu        sync.Mutex
 	possibleUncles map[common.Hash]*types.Block
 
-	txQueueMu sync.Mutex
-	txQueue   map[common.Hash]*types.Transaction
-
 	unconfirmed *unconfirmedBlocks // set of locally mined blocks pending canonicalness confirmations
 
 	// atomic status counters
@@ -133,9 +129,8 @@ func newWorker(config *params.ChainConfig, engine consensus.Engine, coinbase com
 		proc:           eth.BlockChain().Validator(),
 		possibleUncles: make(map[common.Hash]*types.Block),
 		coinbase:       coinbase,
-		txQueue:        make(map[common.Hash]*types.Transaction),
 		agents:         make(map[Agent]struct{}),
-		unconfirmed:    newUnconfirmedBlocks(eth.BlockChain(), 5),
+		unconfirmed:    newUnconfirmedBlocks(eth.BlockChain(), miningLogAtDepth),
 		fullValidation: false,
 	}
 	worker.events = worker.mux.Subscribe(core.ChainHeadEvent{}, core.ChainSideEvent{}, core.TxPreEvent{})
@@ -362,11 +357,7 @@ func (self *worker) makeCurrent(parent *types.Block, header *types.Header) error
 		work.family.Add(ancestor.Hash())
 		work.ancestors.Add(ancestor.Hash())
 	}
-	wallets := self.eth.AccountManager().Wallets()
-	accounts := make([]accounts.Account, 0, len(wallets))
-	for _, wallet := range wallets {
-		accounts = append(accounts, wallet.Accounts()...)
-	}
+
 	// Keep track of transactions which return errors so they can be removed
 	work.tcount = 0
 	self.current = work