WARNING: line length of 88 exceeds 80 columns
#52: FILE: kernel/bpf/verifier.c:8452:
+		verbose(env, "map '%s' has to have BTF in order to use %s\n", map->name,

WARNING: line length of 83 exceeds 80 columns
#59: FILE: kernel/bpf/verifier.c:8457:
+		verbose(env, "map '%s' has no valid %s\n", map->name, struct_name);

WARNING: line length of 83 exceeds 80 columns
#70: FILE: kernel/bpf/verifier.c:8465:
+		verifier_bug(env, "unsupported BTF field type: %s\n", struct_name);

WARNING: line length of 85 exceeds 80 columns
#74: FILE: kernel/bpf/verifier.c:8469:
+		verbose(env, "off %lld doesn't point to 'struct %s' that is at %d\n",

WARNING: The commit message has 'syzkaller', perhaps it also needs a 'Fixes:' tag?

total: 0 errors, 5 warnings, 0 checks, 70 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 c4bec0f5f415 ("bpf: extract generic helper from process_timer_func()") 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, 5 warnings, 0 checks, 70 lines checked