WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#65: FILE: tools/testing/selftests/bpf/progs/verifier_ctx.c:316:
+	volatile __u32 val;

WARNING: Use of volatile is usually wrong: see Documentation/process/volatile-considered-harmful.rst
#79: FILE: tools/testing/selftests/bpf/progs/verifier_ctx.c:330:
+	volatile __u32 val;

WARNING: line length of 81 exceeds 80 columns
#318: FILE: tools/testing/selftests/bpf/progs/verifier_ctx.c:578:
+		return bpf_probe_read_kernel(ctx, 0, 0);			\

total: 0 errors, 3 warnings, 0 checks, 333 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 8c284839d91d ("selftests/bpf: Add syscall ctx variable offset tests") 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, 0 checks, 333 lines checked