Patch "selftests: net: kill smcrouted in the cleanup logic in amt.sh" has been added to the 6.1-stable tree

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This is a note to let you know that I've just added the patch titled

    selftests: net: kill smcrouted in the cleanup logic in amt.sh

to the 6.1-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-net-kill-smcrouted-in-the-cleanup-logic-in.patch
and it can be found in the queue-6.1 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 9656594a2a02d805103c825a5a9be3d8e9fe4dad
Author: Taehee Yoo <ap420073@xxxxxxxxx>
Date:   Sat May 18 13:20:52 2024 +0000

    selftests: net: kill smcrouted in the cleanup logic in amt.sh
    
    [ Upstream commit cc563e749810f5636451d4b833fbd689899ecdb9 ]
    
    The amt.sh requires smcrouted for multicasting routing.
    So, it starts smcrouted before forwarding tests.
    It must be stopped after all tests, but it isn't.
    
    To fix this issue, it kills smcrouted in the cleanup logic.
    
    Fixes: c08e8baea78e ("selftests: add amt interface selftest script")
    Signed-off-by: Taehee Yoo <ap420073@xxxxxxxxx>
    Reviewed-by: Simon Horman <horms@xxxxxxxxxx>
    Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/tools/testing/selftests/net/amt.sh b/tools/testing/selftests/net/amt.sh
index 5175a42cbe8a2..7e7ed6c558da9 100755
--- a/tools/testing/selftests/net/amt.sh
+++ b/tools/testing/selftests/net/amt.sh
@@ -77,6 +77,7 @@ readonly LISTENER=$(mktemp -u listener-XXXXXXXX)
 readonly GATEWAY=$(mktemp -u gateway-XXXXXXXX)
 readonly RELAY=$(mktemp -u relay-XXXXXXXX)
 readonly SOURCE=$(mktemp -u source-XXXXXXXX)
+readonly SMCROUTEDIR="$(mktemp -d)"
 ERR=4
 err=0
 
@@ -85,6 +86,11 @@ exit_cleanup()
 	for ns in "$@"; do
 		ip netns delete "${ns}" 2>/dev/null || true
 	done
+	if [ -f "$SMCROUTEDIR/amt.pid" ]; then
+		smcpid=$(< $SMCROUTEDIR/amt.pid)
+		kill $smcpid
+	fi
+	rm -rf $SMCROUTEDIR
 
 	exit $ERR
 }
@@ -167,7 +173,7 @@ setup_iptables()
 
 setup_mcast_routing()
 {
-	ip netns exec "${RELAY}" smcrouted
+	ip netns exec "${RELAY}" smcrouted -P $SMCROUTEDIR/amt.pid
 	ip netns exec "${RELAY}" smcroutectl a relay_src \
 		172.17.0.2 239.0.0.1 amtr
 	ip netns exec "${RELAY}" smcroutectl a relay_src \




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