This is a note to let you know that I've just added the patch titled
selftests: mptcp: pm nl: remove hardcoded default limits
to the 5.15-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-mptcp-pm-nl-remove-hardcoded-default-limits.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From stable-owner@xxxxxxxxxxxxxxx Thu Jun 22 13:55:55 2023
From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
Date: Thu, 22 Jun 2023 13:55:38 +0200
Subject: selftests: mptcp: pm nl: remove hardcoded default limits
To: stable@xxxxxxxxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx
Cc: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>, Jakub Kicinski <kuba@xxxxxxxxxx>
Message-ID: <20230622115538.3103008-1-matthieu.baerts@xxxxxxxxxxxx>
From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
commit 2177d0b08e421971e035672b70f3228d9485c650 upstream.
Selftests are supposed to run on any kernels, including the old ones not
supporting all MPTCP features.
One of them is the checks of the default limits returned by the MPTCP
in-kernel path-manager. The default values have been modified by commit
72bcbc46a5c3 ("mptcp: increase default max additional subflows to 2").
Instead of comparing with hardcoded values, we can get the default one
and compare with them.
Note that if we expect to have the latest version, we continue to check
the hardcoded values to avoid unexpected behaviour changes.
Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: eedbc685321b ("selftests: add PM netlink functional tests")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
tools/testing/selftests/net/mptcp/pm_netlink.sh | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
--- a/tools/testing/selftests/net/mptcp/pm_netlink.sh
+++ b/tools/testing/selftests/net/mptcp/pm_netlink.sh
@@ -73,8 +73,12 @@ check()
}
check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "defaults addr list"
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
+
+default_limits="$(ip netns exec $ns1 ./pm_nl_ctl limits)"
+if mptcp_lib_expect_all_features; then
+ check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
subflows 0" "defaults limits"
+fi
ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1
ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.2 flags subflow dev lo
@@ -121,12 +125,10 @@ ip netns exec $ns1 ./pm_nl_ctl flush
check "ip netns exec $ns1 ./pm_nl_ctl dump" "" "flush addrs"
ip netns exec $ns1 ./pm_nl_ctl limits 9 1
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
-subflows 0" "rcv addrs above hard limit"
+check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "rcv addrs above hard limit"
ip netns exec $ns1 ./pm_nl_ctl limits 1 9
-check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 0
-subflows 0" "subflows above hard limit"
+check "ip netns exec $ns1 ./pm_nl_ctl limits" "$default_limits" "subflows above hard limit"
ip netns exec $ns1 ./pm_nl_ctl limits 8 8
check "ip netns exec $ns1 ./pm_nl_ctl limits" "accept 8
Patches currently in stable-queue which might be from stable-owner@xxxxxxxxxxxxxxx are
queue-5.15/selftests-mptcp-join-use-iptables-legacy-if-available.patch
queue-5.15/selftests-mptcp-pm-nl-remove-hardcoded-default-limits.patch
queue-5.15/selftests-mptcp-join-skip-check-if-mib-counter-not-supported.patch
