WARNING: line length of 83 exceeds 80 columns
#205: FILE: tools/testing/selftests/bpf/progs/dynptr_success.c:839:
+		err = bpf_dynptr_read(&buf, data_sz - offset, &ptr_xdp, offset, 0);

total: 0 errors, 1 warnings, 0 checks, 184 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 dd93d8a764a5 ("selftests/bpf: add test cases for bpf_dynptr_memset()") 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, 184 lines checked