From: Jiri Benc <jbenc@redhat.com>
Date: Fri, 18 Oct 2019 14:00:42 +0200
Subject: selftests/bpf: More compatible nc options in test_tc_edt
Git-commit: 11875ba7f251c52effb2b924e04c2ddefa9856ef
Patch-mainline: 5.4-rc6
References: bnc#1151927 5.3.11

Out of the three nc implementations widely in use, at least two (BSD netcat
and nmap-ncat) do not support -l combined with -s. Modify the nc invocation
to be accepted by all of them.

Fixes: 7df5e3db8f63 ("selftests: bpf: tc-bpf flow shaping with EDT")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: Peter Oskolkov <posk@google.com>
Link: https://lore.kernel.org/bpf/f5bf07dccd8b552a76c84d49e80b86c5aa071122.1571400024.git.jbenc@redhat.com
Signed-off-by: Jiri Slaby <jslaby@suse.cz>
---
 tools/testing/selftests/bpf/test_tc_edt.sh |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/bpf/test_tc_edt.sh
+++ b/tools/testing/selftests/bpf/test_tc_edt.sh
@@ -59,7 +59,7 @@ ip netns exec ${NS_SRC} tc filter add de
 
 # start the listener
 ip netns exec ${NS_DST} bash -c \
-	"nc -4 -l -s ${IP_DST} -p 9000 >/dev/null &"
+	"nc -4 -l -p 9000 >/dev/null &"
 declare -i NC_PID=$!
 sleep 1