Patch "selftests: cmsg_ipv6: repeat the exact packet" 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: cmsg_ipv6: repeat the exact packet

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-cmsg_ipv6-repeat-the-exact-packet.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 29106e4421f827fc3b1c87081b653f07262f267f
Author: Jakub Kicinski <kuba@xxxxxxxxxx>
Date:   Sun Feb 4 08:56:18 2024 -0800

    selftests: cmsg_ipv6: repeat the exact packet
    
    [ Upstream commit 4b00d0c513da58b68df015968721b11396fe4ab3 ]
    
    cmsg_ipv6 test requests tcpdump to capture 4 packets,
    and sends until tcpdump quits. Only the first packet
    is "real", however, and the rest are basic UDP packets.
    So if tcpdump doesn't start in time it will miss
    the real packet and only capture the UDP ones.
    
    This makes the test fail on slow machine (no KVM or with
    debug enabled) 100% of the time, while it passes in fast
    environments.
    
    Repeat the "real" / expected packet.
    
    Fixes: 9657ad09e1fa ("selftests: net: test IPV6_TCLASS")
    Fixes: 05ae83d5a4a2 ("selftests: net: test IPV6_HOPLIMIT")
    Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
    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/cmsg_ipv6.sh b/tools/testing/selftests/net/cmsg_ipv6.sh
index 330d0b1ceced..c921750ca118 100755
--- a/tools/testing/selftests/net/cmsg_ipv6.sh
+++ b/tools/testing/selftests/net/cmsg_ipv6.sh
@@ -91,7 +91,7 @@ for ovr in setsock cmsg both diff; do
 	check_result $? 0 "TCLASS $prot $ovr - pass"
 
 	while [ -d /proc/$BG ]; do
-	    $NSEXE ./cmsg_sender -6 -p u $TGT6 1234
+	    $NSEXE ./cmsg_sender -6 -p $p $m $((TOS2)) $TGT6 1234
 	done
 
 	tcpdump -r $TMPF -v 2>&1 | grep "class $TOS2" >> /dev/null
@@ -128,7 +128,7 @@ for ovr in setsock cmsg both diff; do
 	check_result $? 0 "HOPLIMIT $prot $ovr - pass"
 
 	while [ -d /proc/$BG ]; do
-	    $NSEXE ./cmsg_sender -6 -p u $TGT6 1234
+	    $NSEXE ./cmsg_sender -6 -p $p $m $LIM $TGT6 1234
 	done
 
 	tcpdump -r $TMPF -v 2>&1 | grep "hlim $LIM[^0-9]" >> /dev/null




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