Commit b1cb4818 authored Jul 01, 2024 by Zijian Zhang Committed by Greg Kroah-Hartman Jul 18, 2024

selftests: make order checking verbose in msg_zerocopy selftest



[ Upstream commit 7d6d8f0c8b700c9493f2839abccb6d29028b4219 ]

We find that when lock debugging is on, notifications may not come in
order. Thus, we have order checking outputs managed by cfg_verbose, to
avoid too many outputs in this case.

Fixes: 07b65c5b ("test: add msg_zerocopy test")
Signed-off-by: Zijian Zhang <zijianzhang@bytedance.com>
Signed-off-by: Xiaochun Lu <xiaochun.lu@bytedance.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/20240701225349.3395580-3-zijianzhang@bytedance.com


Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

parent d6ab0198

tools/testing/selftests/net/msg_zerocopy.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -438,7 +438,7 @@ static bool do_recv_completion(int fd, int domain)
		/* Detect notification gaps. These should not happen often, if at all.
		* Gaps can occur due to drops, reordering and retransmissions.
		*/
		if (lo != next_completion)
		if (cfg_verbose && lo != next_completion)
		fprintf(stderr, "gap: %u..%u does not append to %u\n",
		lo, hi, next_completion);
		next_completion = hi + 1;