WARNING: line length of 87 exceeds 80 columns
#102: FILE: lib/ref_tracker.c:323:
+static int ref_tracker_dir_seq_print(struct ref_tracker_dir *dir, struct seq_file *seq)

WARNING: Using vsprintf specifier '%px' potentially exposes the kernel memory layout, if you don't really need the address please consider using '%p'.
#150: FILE: lib/ref_tracker.c:377:
+	ret = snprintf(name, sizeof(name), "%s@%px", dir->class, dir);

total: 0 errors, 2 warnings, 0 checks, 135 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 1a9318617810 ("ref_tracker: automatically register a file in debugfs for a ref_tracker_dir") 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, 2 warnings, 0 checks, 135 lines checked