io_uring: remove unused return from io_disarm_next

We removed conditional io_commit_cqring_flush() guarding against
spurious eventfd and the io_disarm_next()'s return value is not used
anymore, just void it.
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/9a441c9a32a58bcc586076fa9a7d0dc33f1fb3cb.1662652536.git.asml.silence@gmail.comSigned-off-by: Jens Axboe <axboe@kernel.dk>

io_uring/timeout.c

@@ -149,11 +149,10 @@ static inline void io_remove_next_linked(struct io_kiocb *req)
 	nxt->link = NULL;
 }
 
-bool io_disarm_next(struct io_kiocb *req)
+void io_disarm_next(struct io_kiocb *req)
 	__must_hold(&req->ctx->completion_lock)
 {
 	struct io_kiocb *link = NULL;
-	bool posted = false;
 
 	if (req->flags & REQ_F_ARM_LTIMEOUT) {
 		link = req->link;
@@ -161,7 +160,6 @@ bool io_disarm_next(struct io_kiocb *req)
 		if (link && link->opcode == IORING_OP_LINK_TIMEOUT) {
 			io_remove_next_linked(req);
 			io_req_tw_post_queue(link, -ECANCELED, 0);
-			posted = true;
 		}
 	} else if (req->flags & REQ_F_LINK_TIMEOUT) {
 		struct io_ring_ctx *ctx = req->ctx;
@@ -169,17 +167,12 @@ bool io_disarm_next(struct io_kiocb *req)
 		spin_lock_irq(&ctx->timeout_lock);
 		link = io_disarm_linked_timeout(req);
 		spin_unlock_irq(&ctx->timeout_lock);
-		if (link) {
-			posted = true;
+		if (link)
 			io_req_tw_post_queue(link, -ECANCELED, 0);
-		}
 	}
 	if (unlikely((req->flags & REQ_F_FAIL) &&
-		     !(req->flags & REQ_F_HARDLINK))) {
-		posted |= (req->link != NULL);
+		     !(req->flags & REQ_F_HARDLINK)))
 		io_fail_links(req);
-	}
-	return posted;
 }
 
 struct io_kiocb *__io_disarm_linked_timeout(struct io_kiocb *req,

io_uring/timeout.h

@@ -27,7 +27,7 @@ int io_timeout_cancel(struct io_ring_ctx *ctx, struct io_cancel_data *cd);
 __cold bool io_kill_timeouts(struct io_ring_ctx *ctx, struct task_struct *tsk,
 			     bool cancel_all);
 void io_queue_linked_timeout(struct io_kiocb *req);
-bool io_disarm_next(struct io_kiocb *req);
+void io_disarm_next(struct io_kiocb *req);
 
 int io_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);
 int io_link_timeout_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe);