From 1b8b5d0316da7468ae4d40f6c2102d559d9e3ca2 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Thu, 13 Nov 2025 10:46:11 +0000 Subject: [PATCH] io_uring/zcrx: elide passing msg flags zcrx sqe->msg_flags has never been defined and checked to be zero. It doesn't need to be a MSG_* bitmask. Keep them undefined, don't mix with MSG_DONTWAIT, and don't pass into io_zcrx_recv() as it's ignored anyway. Signed-off-by: Pavel Begunkov Signed-off-by: Jens Axboe --- io_uring/net.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/io_uring/net.c b/io_uring/net.c index a95cc9ca2a4d..69f901fa3040 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -110,7 +110,6 @@ enum sr_retry_flags { struct io_recvzc { struct file *file; - unsigned msg_flags; u16 flags; u32 len; struct io_zcrx_ifq *ifq; @@ -1253,8 +1252,7 @@ int io_recvzc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) zc->len = READ_ONCE(sqe->len); zc->flags = READ_ONCE(sqe->ioprio); - zc->msg_flags = READ_ONCE(sqe->msg_flags); - if (zc->msg_flags) + if (READ_ONCE(sqe->msg_flags)) return -EINVAL; if (zc->flags & ~(IORING_RECVSEND_POLL_FIRST | IORING_RECV_MULTISHOT)) return -EINVAL; @@ -1283,8 +1281,7 @@ int io_recvzc(struct io_kiocb *req, unsigned int issue_flags) return -ENOTSOCK; len = zc->len; - ret = io_zcrx_recv(req, zc->ifq, sock, zc->msg_flags | MSG_DONTWAIT, - issue_flags, &zc->len); + ret = io_zcrx_recv(req, zc->ifq, sock, 0, issue_flags, &zc->len); if (len && zc->len == 0) { io_req_set_res(req, 0, 0);