WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#18: 
new file mode 100644

WARNING: line length of 84 exceeds 80 columns
#61: FILE: tools/testing/selftests/bpf/prog_tests/btf_sysfs.c:39:
+	raw_data = mmap(NULL, btf_size, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);

WARNING: line length of 86 exceeds 80 columns
#69: FILE: tools/testing/selftests/bpf/prog_tests/btf_sysfs.c:47:
+	raw_data = mmap(NULL, btf_size + trailing + 1, PROT_READ, MAP_PRIVATE, fd, 0);

CHECK: Alignment should match open parenthesis
#78: FILE: tools/testing/selftests/bpf/prog_tests/btf_sysfs.c:56:
+	if (!ASSERT_EQ(mprotect(raw_data, btf_size, PROT_READ | PROT_WRITE), -1,
+	    "mprotect_writable"))

CHECK: Alignment should match open parenthesis
#82: FILE: tools/testing/selftests/bpf/prog_tests/btf_sysfs.c:60:
+	if (!ASSERT_EQ(mprotect(raw_data, btf_size, PROT_READ | PROT_EXEC), -1,
+	    "mprotect_executable"))

WARNING: line length of 85 exceeds 80 columns
#88: FILE: tools/testing/selftests/bpf/prog_tests/btf_sysfs.c:66:
+			PRINT_FAIL("tail of BTF is not zero at page offset %d\n", i);

total: 0 errors, 4 warnings, 2 checks, 82 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 e4f3bb54de05 ("selftests: bpf: add a test for mmapable vmlinux BTF") 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, 4 warnings, 2 checks, 82 lines checked