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io_uring/zcrx: replace memchar_inv with is_zero

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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>
This commit is contained in:
Pavel Begunkov 2025-09-16 15:27:45 +01:00 committed by Jens Axboe
parent 9eb3c57178
commit bdc0d478a1
1 changed files with 1 additions and 1 deletions
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2
io_uring/zcrx.c
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@ -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)