==========
shellcheck - FAILED


 ====== Checking before the patch ======
 ====== Checking the tree with the patch ======
tools/testing/selftests/net/netfilter/conntrack_clash.sh is a new file, but not shellcheck compliant
New errors added
--- /tmp/tmp.2Akudbd2tP	2025-07-17 04:07:52.472815648 -0700
+++ /tmp/tmp.qt3FTHip1Y	2025-07-17 04:07:53.137517083 -0700
@@ -0,0 +1,57 @@
+
+In conntrack_clash.sh line 24:
+ip netns exec "$nsrouter" nft -f -<<EOF
+               ^-------^ SC2154 (warning): nsrouter is referenced but not assigned.
+
+
+In conntrack_clash.sh line 63:
+		ip netns exec "$ns" socat UDP-RECVFROM:$port,fork PIPE 2>/dev/null &
+                                                       ^---^ SC2086 (info): Double quote to prevent globbing and word splitting.
+
+Did you mean: 
+		ip netns exec "$ns" socat UDP-RECVFROM:"$port",fork PIPE 2>/dev/null &
+
+
+In conntrack_clash.sh line 67:
+		wait_local_port_listen "$ns" $port udp
+                                             ^---^ SC2086 (info): Double quote to prevent globbing and word splitting.
+
+Did you mean: 
+		wait_local_port_listen "$ns" "$port" udp
+
+
+In conntrack_clash.sh line 87:
+	if ! ip netns exec "$ns" ping -q -c 1 $daddr > /dev/null;then
+                                              ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.
+
+Did you mean: 
+	if ! ip netns exec "$ns" ping -q -c 1 "$daddr" > /dev/null;then
+
+
+In conntrack_clash.sh line 101:
+	if ! ip netns exec "$ns" ./udpclash $daddr $dport;then
+                                            ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.
+                                                   ^----^ SC2086 (info): Double quote to prevent globbing and word splitting.
+
+Did you mean: 
+	if ! ip netns exec "$ns" ./udpclash "$daddr" "$dport";then
+
+
+In conntrack_clash.sh line 108:
+	cre=$(conntrack -S | grep -v "clash_resolve=0" | wc -l)
+                             ^-----------------------^ SC2126 (style): Consider using 'grep -c' instead of 'grep|wc -l'.
+
+
+In conntrack_clash.sh line 145:
+ip link add veth0 netns "$nsclient1" type veth peer name veth0 netns "$nsrouter"
+                         ^--------^ SC2154 (warning): nsclient1 is referenced but not assigned.
+
+
+In conntrack_clash.sh line 146:
+ip link add veth0 netns "$nsclient2" type veth peer name veth1 netns "$nsrouter"
+                         ^--------^ SC2154 (warning): nsclient2 is referenced but not assigned.
+
+For more information:
+  https://www.shellcheck.net/wiki/SC2154 -- nsclient1 is referenced but not a...
+  https://www.shellcheck.net/wiki/SC2086 -- Double quote to prevent globbing ...
+  https://www.shellcheck.net/wiki/SC2126 -- Consider using 'grep -c' instead ...