CHECK: Prefer using the BIT macro
#27: FILE: include/linux/btf.h:78:
+#define KF_FASTCALL     (1 << 12) /* kfunc supports bpf_fastcall protocol */

total: 0 errors, 0 warnings, 1 checks, 28 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 857225eaa028 ("bpf: use KF_FASTCALL to mark kfuncs supporting fastcall contract") 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, 0 warnings, 1 checks, 28 lines checked