linux-kernel - [PATCH] block: remove unnecessary type castings

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Message-Id: <20220706053529.15952-1-yuzhe@nfschina.com>
Date:   Wed,  6 Jul 2022 13:35:29 +0800
From:   Yu Zhe <yuzhe@...china.com>
To:     paolo.valente@...aro.org, axboe@...nel.dk
Cc:     linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        liqiong@...china.com, Yu Zhe <yuzhe@...china.com>
Subject: [PATCH] block: remove unnecessary type castings

remove unnecessary void* type castings.

Signed-off-by: Yu Zhe <yuzhe@...china.com>
---
 block/bfq-wf2q.c   | 6 +++---
 block/blk-iocost.c | 2 +-
 2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/block/bfq-wf2q.c b/block/bfq-wf2q.c
index f8eb340381cf..2a666b100bcb 100644
--- a/block/bfq-wf2q.c
+++ b/block/bfq-wf2q.c
@@ -474,7 +474,7 @@ static void bfq_active_insert(struct bfq_service_tree *st,
 #ifdef CONFIG_BFQ_GROUP_IOSCHED
 	sd = entity->sched_data;
 	bfqg = container_of(sd, struct bfq_group, sched_data);
-	bfqd = (struct bfq_data *)bfqg->bfqd;
+	bfqd = bfqg->bfqd;
 #endif
 	if (bfqq)
 		list_add(&bfqq->bfqq_list, &bfqq->bfqd->active_list);
@@ -573,7 +573,7 @@ static void bfq_active_extract(struct bfq_service_tree *st,
 #ifdef CONFIG_BFQ_GROUP_IOSCHED
 	sd = entity->sched_data;
 	bfqg = container_of(sd, struct bfq_group, sched_data);
-	bfqd = (struct bfq_data *)bfqg->bfqd;
+	bfqd = bfqg->bfqd;
 #endif
 	if (bfqq)
 		list_del(&bfqq->bfqq_list);
@@ -719,7 +719,7 @@ __bfq_entity_update_weight_prio(struct bfq_service_tree *old_st,
 		else {
 			sd = entity->my_sched_data;
 			bfqg = container_of(sd, struct bfq_group, sched_data);
-			bfqd = (struct bfq_data *)bfqg->bfqd;
+			bfqd = bfqg->bfqd;
 		}
 #endif
 
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index 33a11ba971ea..117181a69b7a 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -1430,7 +1430,7 @@ static int iocg_wake_fn(struct wait_queue_entry *wq_entry, unsigned mode,
 			int flags, void *key)
 {
 	struct iocg_wait *wait = container_of(wq_entry, struct iocg_wait, wait);
-	struct iocg_wake_ctx *ctx = (struct iocg_wake_ctx *)key;
+	struct iocg_wake_ctx *ctx = key;
 	u64 cost = abs_cost_to_cost(wait->abs_cost, ctx->hw_inuse);
 
 	ctx->vbudget -= cost;
-- 
2.11.0