* [PATCH 1/1] io_uring/zcrx: clear RQ headers on init
@ 2026-04-21 8:46 Pavel Begunkov
2026-04-21 13:58 ` Jens Axboe
0 siblings, 1 reply; 2+ messages in thread
From: Pavel Begunkov @ 2026-04-21 8:46 UTC (permalink / raw)
To: io-uring; +Cc: asml.silence, axboe, netdev
It might be unexpected to users if the RQ head/tail after a ring
creation are not zeroed, fix that.
Cc: stable@vger.kernel.org
Fixes: 6f377873cb239 ("io_uring/zcrx: add interface queue and refill queue")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
---
io_uring/zcrx.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index fab3693ecb0d..2eb09219f0a0 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c
@@ -396,6 +396,7 @@ static int io_allocate_rbuf_ring(struct io_ring_ctx *ctx,
ifq->rq.ring = (struct io_uring *)ptr;
ifq->rq.rqes = (struct io_uring_zcrx_rqe *)(ptr + off);
+ memset(ifq->rq.ring, 0, sizeof(*ifq->rq.ring));
return 0;
}
--
2.53.0
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2026-04-21 13:58 ` Jens Axboe
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