WARNING: line length of 84 exceeds 80 columns
#106: FILE: kernel/bpf/arena.c:156:
+				   KERN_VM_SZ - GUARD_SZ, apply_range_set_cb, NULL);

WARNING: line length of 89 exceeds 80 columns
#138: FILE: kernel/bpf/arena.c:367:
+	ret = apply_to_page_range(&init_mm, kaddr, PAGE_SIZE, apply_range_set_cb, &data);

WARNING: line length of 94 exceeds 80 columns
#211: FILE: kernel/bpf/arena.c:628:
+		apply_to_existing_page_range(&init_mm, kaddr, PAGE_SIZE, apply_range_clear_cb,

total: 0 errors, 3 warnings, 0 checks, 177 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 8b0681939af6 ("bpf: arena: populate vm_area without allocating memory") 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, 177 lines checked