[PATCH io_uring-7.1 13/16] io_uring/zcrx: warn on a repeated area append
From: Pavel Begunkov <asml.silence@gmail.com>
Date: 2026-03-23 12:44:19
Also in:
io-uring
Subsystem:
io_uring, io_uring zcrx, the rest · Maintainers:
Jens Axboe, Pavel Begunkov, Linus Torvalds
We only support a single area, no path should be able to call io_zcrx_append_area() twice. Warn if that happens instead of just returning an error. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> --- io_uring/zcrx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index bf3dd15678c9..265b3a744ac2 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c@@ -423,7 +423,7 @@ static void io_zcrx_free_area(struct io_zcrx_ifq *ifq, static int io_zcrx_append_area(struct io_zcrx_ifq *ifq, struct io_zcrx_area *area) { - if (ifq->area) + if (WARN_ON_ONCE(ifq->area)) return -EINVAL; ifq->area = area; return 0;
--
2.53.0