WARNING: line length of 86 exceeds 80 columns
#91: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1060:
+		if (sscanf(ksyms->syms[i].name, "bpf_prog_%*[^_]_%255s", name) == 1 &&

WARNING: char * array declaration might be better as static const
#100: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1069:
+	const char *func_names[] = { "xdp_main", "token_ksym_subprog" };

WARNING: Missing a blank line after declarations
#101: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1070:
+	const char *func_names[] = { "xdp_main", "token_ksym_subprog" };
+	LIBBPF_OPTS(bpf_object_open_opts, opts);

WARNING: line length of 104 exceeds 80 columns
#162: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1264:
+		if (sysctl_set_or_fail("/proc/sys/kernel/perf_event_paranoid", perf_paranoid_orig, "0"))

WARNING: line length of 98 exceeds 80 columns
#164: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1266:
+		if (sysctl_set_or_fail("/proc/sys/kernel/kptr_restrict", kptr_restrict_orig, "0"))

WARNING: line length of 109 exceeds 80 columns
#171: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1273:
+			sysctl_set_or_fail("/proc/sys/kernel/perf_event_paranoid", NULL, perf_paranoid_orig);

WARNING: line length of 103 exceeds 80 columns
#173: FILE: tools/testing/selftests/bpf/prog_tests/token.c:1275:
+			sysctl_set_or_fail("/proc/sys/kernel/kptr_restrict", NULL, kptr_restrict_orig);

WARNING: line length of 83 exceeds 80 columns
#274: FILE: tools/testing/selftests/bpf/sysctl_helpers.c:29:
+int sysctl_set_or_fail(const char *sysctl_path, char *old_val, const char *new_val)

WARNING: line length of 97 exceeds 80 columns
#280: FILE: tools/testing/selftests/bpf/sysctl_helpers.c:35:
+		PRINT_FAIL("failed to set %s to %s: %s\n", sysctl_path, new_val, strerror(-err));

WARNING: line length of 84 exceeds 80 columns
#294: FILE: tools/testing/selftests/bpf/sysctl_helpers.h:6:
+int sysctl_set_or_fail(const char *sysctl_path, char *old_val, const char *new_val);

total: 0 errors, 10 warnings, 0 checks, 222 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 6da420f94890 ("selftests/bpf: verify kallsyms entries for token-loaded subprograms") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 10 warnings, 0 checks, 222 lines checked