From 59bc1ab922bbb36558292c204e56ab951e833384 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Sun, 20 Apr 2025 10:31:17 +0100 Subject: [PATCH] io_uring/zcrx: remove sqe->file_index check sqe->file_index and sqe->zcrx_ifq_idx are aliased, so even though io_recvzc_prep() has all necessary handling and checking for ->zcrx_ifq_idx, it's already rejected a couple of lines above. It's not a real problem, however, as we can only have one ifq at the moment, which index is always zero, and it returns correct error codes to the user. Signed-off-by: Pavel Begunkov Link: https://lore.kernel.org/r/b51acedd326d1a87bf53e33303e6fc87661a3e3f.1745141261.git.asml.silence@gmail.com Signed-off-by: Jens Axboe --- io_uring/net.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/io_uring/net.c b/io_uring/net.c index 5f1a519d1fc6e..782f8e76c5c77 100644 --- a/io_uring/net.c +++ b/io_uring/net.c @@ -1185,8 +1185,7 @@ int io_recvzc_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe) struct io_recvzc *zc = io_kiocb_to_cmd(req, struct io_recvzc); unsigned ifq_idx; - if (unlikely(sqe->file_index || sqe->addr2 || sqe->addr || - sqe->addr3)) + if (unlikely(sqe->addr2 || sqe->addr || sqe->addr3)) return -EINVAL; ifq_idx = READ_ONCE(sqe->zcrx_ifq_idx); -- 2.47.2