WARNING: line length of 89 exceeds 80 columns
#47: FILE: kernel/bpf/stream.c:215:
+__bpf_kfunc int bpf_stream_vprintk(int stream_id, const char *fmt__str, const void *args,

WARNING: line length of 84 exceeds 80 columns
#68: FILE: tools/lib/bpf/bpf_helpers.h:318:
+extern int bpf_stream_vprintk(int stream_id, const char *fmt__str, const void *args,

CHECK: extern prototypes should be avoided in .h files
#68: FILE: tools/lib/bpf/bpf_helpers.h:318:
+extern int bpf_stream_vprintk(int stream_id, const char *fmt__str, const void *args,

WARNING: line length of 89 exceeds 80 columns
#78: FILE: tools/lib/bpf/bpf_helpers.h:331:
+	bpf_stream_vprintk(stream_id, ___fmt, ___param, sizeof(___param));		\

total: 0 errors, 3 warnings, 1 checks, 66 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 8e731e57da38 ("bpf: Migrate bpf_stream_vprintk() to KF_IMPLICIT_ARGS") 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, 1 checks, 66 lines checked