From: Andrii Nakryiko <andrii@kernel.org>
Date: Tue, 2 Nov 2021 22:41:13 -0700
Subject: selftests/bpf: Make netcnt selftests serial to avoid spurious
 failures
Patch-mainline: v5.16-rc1
Git-commit: 401a33da3a45cc05859b121314f8ab52c2c01977
References: jsc#PED-1377

When running `./test_progs -j` test_netcnt fails with a very high
probability, undercounting number of packets received (9999 vs expected
10000). It seems to be conflicting with other cgroup/skb selftests. So
make it serial for now to make parallel mode more robust.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Link: https://lore.kernel.org/bpf/20211103054113.2130582-1-andrii@kernel.org
Acked-by: Shung-Hsi Yu <shung-hsi.yu@suse.com>
---
 tools/testing/selftests/bpf/prog_tests/netcnt.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/bpf/prog_tests/netcnt.c
+++ b/tools/testing/selftests/bpf/prog_tests/netcnt.c
@@ -8,7 +8,7 @@
 
 #define CG_NAME "/netcnt"
 
-void test_netcnt(void)
+void serial_test_netcnt(void)
 {
 	union percpu_net_cnt *percpu_netcnt = NULL;
 	struct bpf_cgroup_storage_key key;