WARNING: line length of 99 exceeds 80 columns
#57: FILE: tools/testing/selftests/bpf/progs/bpf_misc.h:133:
+#define __test_tag(tag)		__attribute__((btf_decl_tag("comment:" XSTR(__COUNTER__) ":" tag)))

WARNING: line length of 82 exceeds 80 columns
#92: FILE: tools/testing/selftests/bpf/progs/bpf_misc.h:160:
+#define __caps_unpriv(caps)	__test_tag("test_caps_unpriv=" EXPAND_QUOTE(caps))

WARNING: line length of 97 exceeds 80 columns
#235: FILE: tools/testing/selftests/bpf/test_loader.c:385:
+		if (!btf_is_decl_tag(t) || t->type != id || btf_decl_tag(t)->component_idx != -1)

ERROR: do not use assignment in if condition
#296: FILE: tools/testing/selftests/bpf/test_loader.c:503:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_MSG_PFX))) {

WARNING: line length of 81 exceeds 80 columns
#302: FILE: tools/testing/selftests/bpf/test_loader.c:508:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_NOT_MSG_PFX))) {

ERROR: do not use assignment in if condition
#302: FILE: tools/testing/selftests/bpf/test_loader.c:508:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_NOT_MSG_PFX))) {

WARNING: line length of 84 exceeds 80 columns
#308: FILE: tools/testing/selftests/bpf/test_loader.c:513:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_MSG_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#308: FILE: tools/testing/selftests/bpf/test_loader.c:513:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_MSG_PFX_UNPRIV))) {

WARNING: line length of 88 exceeds 80 columns
#314: FILE: tools/testing/selftests/bpf/test_loader.c:518:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_NOT_MSG_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#314: FILE: tools/testing/selftests/bpf/test_loader.c:518:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_NOT_MSG_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#320: FILE: tools/testing/selftests/bpf/test_loader.c:523:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_JITED_PFX))) {

ERROR: do not use assignment in if condition
#329: FILE: tools/testing/selftests/bpf/test_loader.c:535:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_JITED_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#338: FILE: tools/testing/selftests/bpf/test_loader.c:547:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_XLATED_PFX))) {

WARNING: line length of 87 exceeds 80 columns
#345: FILE: tools/testing/selftests/bpf/test_loader.c:553:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_XLATED_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#345: FILE: tools/testing/selftests/bpf/test_loader.c:553:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_XLATED_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#354: FILE: tools/testing/selftests/bpf/test_loader.c:636:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_STDERR_PFX))) {

WARNING: line length of 87 exceeds 80 columns
#360: FILE: tools/testing/selftests/bpf/test_loader.c:641:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_STDERR_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#360: FILE: tools/testing/selftests/bpf/test_loader.c:641:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_STDERR_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#366: FILE: tools/testing/selftests/bpf/test_loader.c:646:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_STDOUT_PFX))) {

WARNING: line length of 87 exceeds 80 columns
#372: FILE: tools/testing/selftests/bpf/test_loader.c:651:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_STDOUT_PFX_UNPRIV))) {

ERROR: do not use assignment in if condition
#372: FILE: tools/testing/selftests/bpf/test_loader.c:651:
+		} else if ((msg = str_has_pfx(s, TEST_TAG_EXPECT_STDOUT_PFX_UNPRIV))) {

total: 12 errors, 9 warnings, 0 checks, 341 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 6f010197c258 ("selftests/bpf: impose global ordering for test decl_tags") 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.