linux-kernel - [PATCH 5.14 750/849] selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanly

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Message-Id: <20211115165445.629044726@linuxfoundation.org>
Date:   Mon, 15 Nov 2021 18:03:53 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jiri Benc <jbenc@...hat.com>,
        Hangbin Liu <liuhangbin@...il.com>,
        Daniel Borkmann <daniel@...earbox.net>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.14 750/849] selftests/bpf/xdp_redirect_multi: Give tcpdump a chance to terminate cleanly

From: Hangbin Liu <liuhangbin@...il.com>

[ Upstream commit 648c3677062fbd14d754b853daebb295426771e8 ]

No need to kill tcpdump with -9.

Fixes: d23292476297 ("selftests/bpf: Add xdp_redirect_multi test")
Suggested-by: Jiri Benc <jbenc@...hat.com>
Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
Signed-off-by: Daniel Borkmann <daniel@...earbox.net>
Link: https://lore.kernel.org/bpf/20211027033553.962413-4-liuhangbin@gmail.com
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/testing/selftests/bpf/test_xdp_redirect_multi.sh | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh b/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh
index c2a933caa32d4..37e347159ab44 100755
--- a/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh
+++ b/tools/testing/selftests/bpf/test_xdp_redirect_multi.sh
@@ -106,7 +106,7 @@ do_egress_tests()
 	sleep 0.5
 	ip netns exec ns1 ping 192.0.2.254 -i 0.1 -c 4 &> /dev/null
 	sleep 0.5
-	pkill -9 tcpdump
+	pkill tcpdump
 
 	# mac check
 	grep -q "${veth_mac[2]} > ff:ff:ff:ff:ff:ff" ${LOG_DIR}/mac_ns1-2_${mode}.log && \
@@ -133,7 +133,7 @@ do_ping_tests()
 	# IPv6 test
 	ip netns exec ns1 ping6 2001:db8::2 -i 0.1 -c 2 &> /dev/null
 	sleep 0.5
-	pkill -9 tcpdump
+	pkill tcpdump
 
 	# All netns should receive the redirect arp requests
 	[ $(grep -cF "who-has 192.0.2.254" ${LOG_DIR}/ns1-1_${mode}.log) -eq 4 ] && \
-- 
2.33.0