WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#71: 
new file mode 100755

WARNING: line length of 130 exceeds 80 columns
#102: FILE: tools/testing/selftests/net/netfilter/conntrack_clash.sh:27:
+		meta l4proto udp dnat to numgen random mod 3 map { 0 : 10.0.2.1 . 9000, 1 : 10.0.2.1 . 9001, 2 : 10.0.2.1 . 9002 }

WARNING: line length of 84 exceeds 80 columns
#138: FILE: tools/testing/selftests/net/netfilter/conntrack_clash.sh:63:
+		ip netns exec "$ns" socat UDP-RECVFROM:$port,fork PIPE 2>/dev/null &

WARNING: line length of 89 exceeds 80 columns
#177: FILE: tools/testing/selftests/net/netfilter/conntrack_clash.sh:102:
+		echo "FAIL: did not receive expected number of replies for $daddr:$dport"

WARNING: line length of 90 exceeds 80 columns
#211: FILE: tools/testing/selftests/net/netfilter/conntrack_clash.sh:136:
+			echo "PASS: clash resolution test for $daddr:$dport on attempt $i"

WARNING: line length of 90 exceeds 80 columns
#214: FILE: tools/testing/selftests/net/netfilter/conntrack_clash.sh:139:
+			echo "FAIL: clash resolution test for $daddr:$dport on attempt $i"

WARNING: line length of 87 exceeds 80 columns
#269: FILE: tools/testing/selftests/net/netfilter/udpclash.c:13:
+ *  71d8c47fc653 ("netfilter: conntrack: introduce clash resolution on insertion race")

WARNING: line length of 83 exceeds 80 columns
#270: FILE: tools/testing/selftests/net/netfilter/udpclash.c:14:
+ *  ed07d9a021df ("netfilter: nf_conntrack: resolve clash for matching conntracks")

WARNING: line length of 84 exceeds 80 columns
#324: FILE: tools/testing/selftests/net/netfilter/udpclash.c:68:
+		int err = pthread_create(&tid[i], NULL, &thread_main, &thread_args);

CHECK: No space is necessary after a cast
#344: FILE: tools/testing/selftests/net/netfilter/udpclash.c:88:
+			       (struct sockaddr *) &si_repl, &si_repl_len);

WARNING: line length of 97 exceeds 80 columns
#347: FILE: tools/testing/selftests/net/netfilter/udpclash.c:91:
+				fputs("timed out while waiting for reply from thread\n", stderr);

WARNING: line length of 92 exceeds 80 columns
#357: FILE: tools/testing/selftests/net/netfilter/udpclash.c:101:
+			fprintf(stderr, "warning: reply has unexpected repl_len %d vs %d\n",

WARNING: line length of 83 exceeds 80 columns
#359: FILE: tools/testing/selftests/net/netfilter/udpclash.c:103:
+		} else if (si_remote->sin_addr.s_addr != si_repl.sin_addr.s_addr ||

WARNING: line length of 90 exceeds 80 columns
#366: FILE: tools/testing/selftests/net/netfilter/udpclash.c:110:
+			fprintf(stderr, "reply from wrong source: want %s:%d got %s:%d\n",

WARNING: line length of 91 exceeds 80 columns
#367: FILE: tools/testing/selftests/net/netfilter/udpclash.c:111:
+				a, ntohs(si_remote->sin_port), b, ntohs(si_repl.sin_port));

WARNING: line length of 81 exceeds 80 columns
#398: FILE: tools/testing/selftests/net/netfilter/udpclash.c:142:
+	fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_UDP);

CHECK: spaces preferred around that '|' (ctx:VxV)
#398: FILE: tools/testing/selftests/net/netfilter/udpclash.c:142:
+	fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_UDP);
 	                               ^

CHECK: spaces preferred around that '|' (ctx:VxV)
#398: FILE: tools/testing/selftests/net/netfilter/udpclash.c:142:
+	fd = socket(AF_INET, SOCK_DGRAM|SOCK_CLOEXEC|SOCK_NONBLOCK, IPPROTO_UDP);
 	                                            ^

total: 0 errors, 15 warnings, 3 checks, 358 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit ab99752c31ae ("selftests: netfilter: add conntrack clash resolution test case") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 15 warnings, 3 checks, 358 lines checked