mmc: queue: turn queue flags into bools

Instead of masking and setting two bits in the "flags" field
for the mmc_queue, just use two bools named "suspended" and
"new_request".

The masking and setting would likely have race conditions
anyways, it is better to use a simple member like this.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

drivers/mmc/core/block.c

@@ -1663,7 +1663,7 @@ static void mmc_blk_issue_rw_rq(struct mmc_queue *mq, struct request *new_req)
 			 * complete.
 			 */
 			if (status == MMC_BLK_NEW_REQUEST)
-				mq->flags |= MMC_QUEUE_NEW_REQUEST;
+				mq->new_request = true;
 			return;
 		}
 
@@ -1802,7 +1802,7 @@ void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 		goto out;
 	}
 
-	mq->flags &= ~MMC_QUEUE_NEW_REQUEST;
+	mq->new_request = false;
 	if (req && req_op(req) == REQ_OP_DISCARD) {
 		/* complete ongoing async transfer before issuing discard */
 		if (card->host->areq)
@@ -1823,7 +1823,7 @@ void mmc_blk_issue_rq(struct mmc_queue *mq, struct request *req)
 	}
 
 out:
-	if ((!req && !(mq->flags & MMC_QUEUE_NEW_REQUEST)) || req_is_special)
+	if ((!req && !mq->new_request) || req_is_special)
 		/*
 		 * Release host when there are no more requests
 		 * and after special request(discard, flush) is done.

drivers/mmc/core/queue.c

@@ -86,8 +86,8 @@ static int mmc_queue_thread(void *d)
 			set_current_state(TASK_RUNNING);
 			mmc_blk_issue_rq(mq, req);
 			cond_resched();
-			if (mq->flags & MMC_QUEUE_NEW_REQUEST) {
-				mq->flags &= ~MMC_QUEUE_NEW_REQUEST;
+			if (mq->new_request) {
+				mq->new_request = false;
 				continue; /* fetch again */
 			}
 
@@ -401,8 +401,8 @@ void mmc_queue_suspend(struct mmc_queue *mq)
 	struct request_queue *q = mq->queue;
 	unsigned long flags;
 
-	if (!(mq->flags & MMC_QUEUE_SUSPENDED)) {
-		mq->flags |= MMC_QUEUE_SUSPENDED;
+	if (!mq->suspended) {
+		mq->suspended |= true;
 
 		spin_lock_irqsave(q->queue_lock, flags);
 		blk_stop_queue(q);
@@ -421,8 +421,8 @@ void mmc_queue_resume(struct mmc_queue *mq)
 	struct request_queue *q = mq->queue;
 	unsigned long flags;
 
-	if (mq->flags & MMC_QUEUE_SUSPENDED) {
-		mq->flags &= ~MMC_QUEUE_SUSPENDED;
+	if (mq->suspended) {
+		mq->suspended = false;
 
 		up(&mq->thread_sem);
 

drivers/mmc/core/queue.h

@@ -40,9 +40,8 @@ struct mmc_queue {
 	struct mmc_card		*card;
 	struct task_struct	*thread;
 	struct semaphore	thread_sem;
-	unsigned int		flags;
-#define MMC_QUEUE_SUSPENDED	(1 << 0)
-#define MMC_QUEUE_NEW_REQUEST	(1 << 1)
+	bool			new_request;
+	bool			suspended;
 	bool			asleep;
 	struct mmc_blk_data	*blkdata;
 	struct request_queue	*queue;