From bdc0d478a1632a72afa6d359d7fdd49dd08c0b25 Mon Sep 17 00:00:00 2001 From: Pavel Begunkov Date: Tue, 16 Sep 2025 15:27:45 +0100 Subject: [PATCH] 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 Signed-off-by: Jens Axboe --- 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 c02045e4c1b65..a4a0560e82693 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(®.__resv, 0, sizeof(reg.__resv)) || + if (!mem_is_zero(®.__resv, sizeof(reg.__resv)) || reg.__resv2 || reg.zcrx_id) return -EINVAL; if (reg.if_rxq == -1 || !reg.rq_entries || reg.flags) -- 2.47.3