This is a note to let you know that I've just added the patch titled selftests: icmp_redirect: IPv6 PMTU info should be cleared after redirect to the 5.13-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-icmp_redirect-ipv6-pmtu-info-should-be-cle.patch and it can be found in the queue-5.13 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 18416bbbabf3f281e26fe9e62527d94a7d7da506 Author: Hangbin Liu <liuhangbin@xxxxxxxxx> Date: Wed Jul 7 16:15:30 2021 +0800 selftests: icmp_redirect: IPv6 PMTU info should be cleared after redirect [ Upstream commit 0e02bf5de46ae30074a2e1a8194a422a84482a1a ] After redirecting, it's already a new path. So the old PMTU info should be cleared. The IPv6 test "mtu exception plus redirect" should only has redirect info without old PMTU. The IPv4 test can not be changed because of legacy. Fixes: ec8105352869 ("selftests: Add redirect tests") Signed-off-by: Hangbin Liu <liuhangbin@xxxxxxxxx> Reviewed-by: David Ahern <dsahern@xxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/tools/testing/selftests/net/icmp_redirect.sh b/tools/testing/selftests/net/icmp_redirect.sh index bfcabee50155..104a7a5f13b1 100755 --- a/tools/testing/selftests/net/icmp_redirect.sh +++ b/tools/testing/selftests/net/icmp_redirect.sh @@ -309,9 +309,10 @@ check_exception() fi log_test $? 0 "IPv4: ${desc}" - if [ "$with_redirect" = "yes" ]; then + # No PMTU info for test "redirect" and "mtu exception plus redirect" + if [ "$with_redirect" = "yes" ] && [ "$desc" != "redirect exception plus mtu" ]; then ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \ - grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0.*${mtu}" + grep -v "mtu" | grep -q "${H2_N2_IP6} .*via ${R2_LLADDR} dev br0" elif [ -n "${mtu}" ]; then ip -netns h1 -6 ro get ${H1_VRF_ARG} ${H2_N2_IP6} | \ grep -q "${mtu}"