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authorPavel Begunkov <asml.silence@gmail.com>2025-09-16 15:27:45 +0100
committerJens Axboe <axboe@kernel.dk>2025-09-16 12:37:20 -0600
commitbdc0d478a1632a72afa6d359d7fdd49dd08c0b25 (patch)
tree1d009c5fee3fe1000b99de84082c8046ca1dfba5
parent9eb3c571787d1ef7e2c3393c153b1a6b103a26e3 (diff)
io_uring/zcrx: replace memchar_inv with is_zero
memchr_inv() is more ambiguous than mem_is_zero(), so use the latter for zero checks. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
-rw-r--r--io_uring/zcrx.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/io_uring/zcrx.c b/io_uring/zcrx.c
index c02045e4c1b6..a4a0560e8269 100644
--- a/io_uring/zcrx.c
+++ b/io_uring/zcrx.c
@@ -566,7 +566,7 @@ int io_register_zcrx_ifq(struct io_ring_ctx *ctx,
return -EFAULT;
if (copy_from_user(&rd, u64_to_user_ptr(reg.region_ptr), sizeof(rd)))
return -EFAULT;
- if (memchr_inv(&reg.__resv, 0, sizeof(reg.__resv)) ||
+ if (!mem_is_zero(&reg.__resv, sizeof(reg.__resv)) ||
reg.__resv2 || reg.zcrx_id)
return -EINVAL;
if (reg.if_rxq == -1 || !reg.rq_entries || reg.flags)