The key pointer does not need to cast the type. Signed-off-by: Li zeming <zeming@xxxxxxxxxxxx> --- block/blk-iocost.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/block/blk-iocost.c b/block/blk-iocost.c index 7936e5f5821c..b473efd89b86 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; -- 2.18.2