softirq: Remove unused 'action' parameter from action callback

When soft interrupt actions are called, they are passed a pointer to the
struct softirq action which contains the action's function pointer.

This pointer isn't useful, as the action callback already knows what
function it is. And since each callback handles a specific soft interrupt,
the callback also knows which soft interrupt number is running.

No soft interrupt action callback actually uses this parameter, so remove
it from the function pointer signature. This clarifies that soft interrupt
actions are global routines and makes it slightly cheaper to call them.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Jens Axboe <axboe@kernel.dk>
Link: https://lore.kernel.org/all/20240815171549.3260003-1-csander@purestorage.com

1 files changed, 1 insertions, 1 deletions

diff --git a/block/blk-mq.c b/block/blk-mq.c
index e3c3c0c21b55..aa28157b1aaf 100644
--- a/block/blk-mq.c
+++ b/block/blk-mq.c
@@ -1128,7 +1128,7 @@ static void blk_complete_reqs(struct llist_head *list)
 		rq->q->mq_ops->complete(rq);
 }
 
-static __latent_entropy void blk_done_softirq(struct softirq_action *h)
+static __latent_entropy void blk_done_softirq(void)
 {
 	blk_complete_reqs(this_cpu_ptr(&blk_cpu_done));
 }