WARNING: line length of 105 exceeds 80 columns
#220: FILE: kernel/bpf/helpers.c:3374:
+ * bpf_strspn - Calculate the length of the initial substring of @s which only contain letters in @accept

WARNING: line length of 106 exceeds 80 columns
#242: FILE: kernel/bpf/helpers.c:3396:
+ * strcspn - Calculate the length of the initial substring of @s which does not contain letters in @reject

total: 0 errors, 2 warnings, 0 checks, 317 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 0f9e6d419f28 ("bpf: Add kfuncs for read-only string operations") 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, 317 lines checked