WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#83: FILE: tools/testing/selftests/bpf/progs/verifier_bits_iter.c:176:
+	volatile int nr = 0;

total: 0 errors, 1 warnings, 0 checks, 83 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 665133a543ad ("selftests/bpf: Add three test cases for bits_iter") 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, 1 warnings, 0 checks, 83 lines checked