WARNING: line length of 81 exceeds 80 columns
#63: FILE: lib/buildid.c:67:
+	r->folio = filemap_get_folio(r->file->f_mapping, file_off >> PAGE_SHIFT);

WARNING: line length of 83 exceeds 80 columns
#66: FILE: lib/buildid.c:70:
+	if (r->may_fault && (IS_ERR(r->folio) || !folio_test_uptodate(r->folio))) {

WARNING: line length of 87 exceeds 80 columns
#68: FILE: lib/buildid.c:72:
+		r->folio = read_cache_folio(r->file->f_mapping, file_off >> PAGE_SHIFT,

WARNING: line length of 92 exceeds 80 columns
#121: FILE: lib/buildid.c:352:
+int build_id_parse_nofault(struct vm_area_struct *vma, unsigned char *build_id, __u32 *size)

total: 0 errors, 4 warnings, 0 checks, 103 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 f87f5e094698 ("lib/buildid: implement sleepable build_id_parse() API") 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, 0 checks, 103 lines checked