WARNING: line length of 82 exceeds 80 columns
#42: FILE: tools/testing/selftests/bpf/prog_tests/test_tunnel.c:225:
+	SYS(fail, "ip -n at_ns0 addr add dev %s %s/24", dev0, IP4_ADDR_TUNL_DEV0);

WARNING: line length of 82 exceeds 80 columns
#109: FILE: tools/testing/selftests/bpf/prog_tests/test_tunnel.c:743:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gre", "seq");

WARNING: line length of 88 exceeds 80 columns
#114: FILE: tools/testing/selftests/bpf/prog_tests/test_tunnel.c:748:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gre", "seq key 2");

WARNING: line length of 85 exceeds 80 columns
#119: FILE: tools/testing/selftests/bpf/prog_tests/test_tunnel.c:753:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gretap", "seq");

WARNING: line length of 91 exceeds 80 columns
#124: FILE: tools/testing/selftests/bpf/prog_tests/test_tunnel.c:758:
+		err = add_ipv4_tunnel(GRE_TUNL_DEV0, GRE_TUNL_DEV1, "gretap", "seq key 2");

total: 0 errors, 5 warnings, 0 checks, 236 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 1959551e35cf ("selftests/bpf: test_tunnel: Move gre tunnel test to test_progs") 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, 5 warnings, 0 checks, 236 lines checked