From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> commit 031c99e71fedcce93b6785d38b7d287bf59e3952 upstream. When looking at the TC selftest reports, I noticed one test was failing because /proc/net/nf_conntrack was not available. not ok 373 3992 - Add ct action triggering DNAT tuple conflict Could not match regex pattern. Verify command output: cat: /proc/net/nf_conntrack: No such file or directory It is only available if NF_CONNTRACK_PROCFS kconfig is set. So the issue can be fixed simply by adding it to the list of required kconfig. Fixes: e46905641316 ("tc-testing: add test for ct DNAT tuple collision") Cc: stable@xxxxxxxxxxxxxxx Link: https://lore.kernel.org/netdev/0e061d4a-9a23-9f58-3b35-d8919de332d7@xxxxxxxxxxxx/T/ [1] Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Tested-by: Zhengchao Shao <shaozhengchao@xxxxxxxxxx> Link: https://lore.kernel.org/r/20230713-tc-selftests-lkft-v1-3-1eb4fd3a96e7@xxxxxxxxxxxx Acked-by: Jamal Hadi Salim <jhs@xxxxxxxxxxxx> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/tc-testing/config | 1 + 1 file changed, 1 insertion(+) --- a/tools/testing/selftests/tc-testing/config +++ b/tools/testing/selftests/tc-testing/config @@ -5,6 +5,7 @@ CONFIG_NF_CONNTRACK=m CONFIG_NF_CONNTRACK_MARK=y CONFIG_NF_CONNTRACK_ZONES=y CONFIG_NF_CONNTRACK_LABELS=y +CONFIG_NF_CONNTRACK_PROCFS=y CONFIG_NF_FLOW_TABLE=m CONFIG_NF_NAT=m CONFIG_NETFILTER_XT_TARGET_LOG=m