CHECK: spaces preferred around that '/' (ctx:VxV)
#40: FILE: tools/testing/selftests/bpf/prog_tests/btf_sanitize.c:16:
+	__u32 types[TYPE_LEN/sizeof(__u32)];
 	                    ^

WARNING: line length of 97 exceeds 80 columns
#99: FILE: tools/testing/selftests/bpf/prog_tests/btf_sanitize.c:75:
+	if (!ASSERT_FALSE(kernel_supports(skel->obj, FEAT_BTF_LAYOUT), "layout_feature_missing"))

WARNING: line length of 93 exceeds 80 columns
#102: FILE: tools/testing/selftests/bpf/prog_tests/btf_sanitize.c:78:
+	if (!ASSERT_TRUE(kernel_supports(skel->obj, FEAT_BTF_FUNC), "other_feature_allowed"))

WARNING: line length of 93 exceeds 80 columns
#118: FILE: tools/testing/selftests/bpf/prog_tests/btf_sanitize.c:94:
+	ASSERT_EQ(raw_sz, hdr->hdr_len + hdr->type_len + hdr->str_len, "btf_raw_sz_reduced");

total: 0 errors, 3 warnings, 1 checks, 100 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 8477e356b29f ("selftests/bpf: Add BTF sanitize test covering BTF layout") 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, 3 warnings, 1 checks, 100 lines checked