WARNING: line length of 81 exceeds 80 columns
#65: FILE: tools/lib/bpf/libbpf.c:7721:
+	return type == BPF_TRACE_FENTRY_MULTI || type == BPF_TRACE_FEXIT_MULTI ||

WARNING: line length of 101 exceeds 80 columns
#135: FILE: tools/lib/bpf/libbpf.c:9896:
+static int attach_tracing_multi(const struct bpf_program *prog, long cookie, struct bpf_link **link);

WARNING: line length of 100 exceeds 80 columns
#143: FILE: tools/lib/bpf/libbpf.c:9945:
+	SEC_DEF("fsession.multi+",	TRACING, BPF_TRACE_FSESSION_MULTI, 0, attach_tracing_multi),

WARNING: line length of 112 exceeds 80 columns
#144: FILE: tools/lib/bpf/libbpf.c:9946:
+	SEC_DEF("fsession.multi.s+",	TRACING, BPF_TRACE_FSESSION_MULTI, SEC_SLEEPABLE, attach_tracing_multi),

WARNING: line length of 98 exceeds 80 columns
#145: FILE: tools/lib/bpf/libbpf.c:9947:
+	SEC_DEF("fentry.multi+",	TRACING, BPF_TRACE_FENTRY_MULTI, 0, attach_tracing_multi),

WARNING: line length of 97 exceeds 80 columns
#146: FILE: tools/lib/bpf/libbpf.c:9948:
+	SEC_DEF("fexit.multi+",		TRACING, BPF_TRACE_FEXIT_MULTI, 0, attach_tracing_multi),

WARNING: line length of 110 exceeds 80 columns
#147: FILE: tools/lib/bpf/libbpf.c:9949:
+	SEC_DEF("fentry.multi.s+",	TRACING, BPF_TRACE_FENTRY_MULTI, SEC_SLEEPABLE, attach_tracing_multi),

WARNING: line length of 109 exceeds 80 columns
#148: FILE: tools/lib/bpf/libbpf.c:9950:
+	SEC_DEF("fexit.multi.s+",	TRACING, BPF_TRACE_FEXIT_MULTI, SEC_SLEEPABLE, attach_tracing_multi),

WARNING: line length of 85 exceeds 80 columns
#211: FILE: tools/lib/bpf/libbpf.c:12381:
+collect_btf_func_ids_by_glob(const struct btf *btf, const char *pattern, __u32 **ids)

WARNING: line length of 85 exceeds 80 columns
#235: FILE: tools/lib/bpf/libbpf.c:12405:
+		err = libbpf_ensure_mem((void **) ids, &cap, sizeof(**ids), cnt + 1);

CHECK: No space is necessary after a cast
#235: FILE: tools/lib/bpf/libbpf.c:12405:
+		err = libbpf_ensure_mem((void **) ids, &cap, sizeof(**ids), cnt + 1);

WARNING: line length of 93 exceeds 80 columns
#246: FILE: tools/lib/bpf/libbpf.c:12416:
+static int collect_func_ids_by_glob(struct bpf_object *obj, const char *pattern, __u32 **ids)

WARNING: line length of 82 exceeds 80 columns
#256: FILE: tools/lib/bpf/libbpf.c:12426:
+	/* In case we have module specified, we will find its btf and use that. */

WARNING: line length of 86 exceeds 80 columns
#291: FILE: tools/lib/bpf/libbpf.c:12461:
+bpf_program__attach_tracing_multi(const struct bpf_program *prog, const char *pattern,

WARNING: line length of 82 exceeds 80 columns
#332: FILE: tools/lib/bpf/libbpf.c:12502:
+	link_fd = bpf_link_create(prog_fd, 0, prog->expected_attach_type, &lopts);

WARNING: line length of 86 exceeds 80 columns
#335: FILE: tools/lib/bpf/libbpf.c:12505:
+		pr_warn("prog '%s': failed to attach: %s\n", prog->name, errstr(err));

WARNING: line length of 100 exceeds 80 columns
#348: FILE: tools/lib/bpf/libbpf.c:12518:
+static int attach_tracing_multi(const struct bpf_program *prog, long cookie, struct bpf_link **link)

ERROR: space prohibited before that ':' (ctx:WxV)
#417: FILE: tools/lib/bpf/libbpf.h:710:
+	size_t :0;
 	       ^

WARNING: line length of 86 exceeds 80 columns
#423: FILE: tools/lib/bpf/libbpf.h:716:
+bpf_program__attach_tracing_multi(const struct bpf_program *prog, const char *pattern,

total: 1 errors, 17 warnings, 1 checks, 367 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 ed99d0b22a13 ("libbpf: Add support to create tracing multi link") 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.