WARNING: line length of 97 exceeds 80 columns
#53: FILE: tools/testing/selftests/bpf/progs/bpf_misc.h:65:
+#define __regex(regex)		__attribute__((btf_decl_tag("comment:test_expect_regex=" regex)))

WARNING: line length of 104 exceeds 80 columns
#58: FILE: tools/testing/selftests/bpf/progs/bpf_misc.h:70:
+#define __regex_unpriv(regex)	__attribute__((btf_decl_tag("comment:test_expect_regex_unpriv=" regex)))

WARNING: line length of 92 exceeds 80 columns
#126: FILE: tools/testing/selftests/bpf/test_loader.c:122:
+static int push_msg(const char *substr, const char *regex_str, struct test_subspec *subspec)

WARNING: line length of 81 exceeds 80 columns
#135: FILE: tools/testing/selftests/bpf/test_loader.c:130:
+		      (1 + subspec->expect_msg_cnt) * sizeof(struct expect_msg));

WARNING: line length of 88 exceeds 80 columns
#151: FILE: tools/testing/selftests/bpf/test_loader.c:145:
+		regcomp_res = regcomp(&msg->regex, regex_str, REG_EXTENDED|REG_NEWLINE);

CHECK: spaces preferred around that '|' (ctx:VxV)
#151: FILE: tools/testing/selftests/bpf/test_loader.c:145:
+		regcomp_res = regcomp(&msg->regex, regex_str, REG_EXTENDED|REG_NEWLINE);
 		                                                          ^

WARNING: line length of 89 exceeds 80 columns
#153: FILE: tools/testing/selftests/bpf/test_loader.c:147:
+			regerror(regcomp_res, &msg->regex, error_msg, sizeof(error_msg));

WARNING: line length of 84 exceeds 80 columns
#196: FILE: tools/testing/selftests/bpf/test_loader.c:392:
+				struct expect_msg *msg = &spec->priv.expect_msgs[i];

WARNING: line length of 91 exceeds 80 columns
#203: FILE: tools/testing/selftests/bpf/test_loader.c:394:
+				err = push_msg(msg->substr, msg->regex_str, &spec->unpriv);

WARNING: line length of 94 exceeds 80 columns
#229: FILE: tools/testing/selftests/bpf/test_loader.c:461:
+			match = strstr(tester->log_buf + tester->next_match_pos, msg->substr);

WARNING: line length of 85 exceeds 80 columns
#235: FILE: tools/testing/selftests/bpf/test_loader.c:467:
+					    tester->log_buf + tester->next_match_pos,

CHECK: Alignment should match open parenthesis
#235: FILE: tools/testing/selftests/bpf/test_loader.c:467:
+			err = regexec(&msg->regex,
+					    tester->log_buf + tester->next_match_pos,

CHECK: braces {} should be used on all arms of this statement
#237: FILE: tools/testing/selftests/bpf/test_loader.c:469:
+			if (err == 0) {
[...]
+			} else
[...]

CHECK: Unbalanced braces around else statement
#241: FILE: tools/testing/selftests/bpf/test_loader.c:473:
+			} else

total: 0 errors, 10 warnings, 4 checks, 227 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 4f3c56c8ce9a ("selftests/bpf: Support checks against a regular expression") 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, 10 warnings, 4 checks, 227 lines checked