WARNING: line length of 87 exceeds 80 columns
#38: FILE: tools/lib/bpf/libbpf.c:8452:
+			     const char *sym_name, const char *module_name, void *ctx);

WARNING: line length of 88 exceeds 80 columns
#56: FILE: tools/lib/bpf/libbpf.c:8470:
+		/* Position indicator - will be updated by %n if format fully matches */

WARNING: line length of 82 exceeds 80 columns
#60: FILE: tools/lib/bpf/libbpf.c:8474:
+		 * but we cannot use %s to capture, as it consumes the closing ']'

WARNING: line length of 85 exceeds 80 columns
#61: FILE: tools/lib/bpf/libbpf.c:8475:
+		 * of the module format. Hence the %127[^] \t\n\r\v\f] which provides

WARNING: line length of 81 exceeds 80 columns
#69: FILE: tools/lib/bpf/libbpf.c:8483:
+			 * Module symbol: all 4 fields matched AND we reached %n.

WARNING: line length of 84 exceeds 80 columns
#70: FILE: tools/lib/bpf/libbpf.c:8484:
+			 * n > 0 means we successfully parsed up to the closing ']'.

WARNING: line length of 81 exceeds 80 columns
#72: FILE: tools/lib/bpf/libbpf.c:8486:
+			err = cb(sym_addr, sym_type, sym_name, module_name, ctx);

WARNING: line length of 93 exceeds 80 columns
#75: FILE: tools/lib/bpf/libbpf.c:8489:
+			 * vmlinux symbol: 3 fields matched, next is matching failure against

WARNING: line length of 94 exceeds 80 columns
#76: FILE: tools/lib/bpf/libbpf.c:8490:
+			 * '[', but we don't care as we got what we needed. Also note that the

WARNING: line length of 92 exceeds 80 columns
#77: FILE: tools/lib/bpf/libbpf.c:8491:
+			 * trailing newline was consumed by the space after the symbol name.

WARNING: line length of 88 exceeds 80 columns
#85: FILE: tools/lib/bpf/libbpf.c:8497:
+			pr_warn("failed to read kallsyms entry: ret=%d n=%d\n", ret, n);

WARNING: line length of 83 exceeds 80 columns
#115: FILE: tools/lib/bpf/libbpf.c:11547:
+		return append_to_file(tracefs_kprobe_events(), "%c:%s/%s %s+0x%zx",

WARNING: line length of 82 exceeds 80 columns
#138: FILE: tools/lib/bpf/libbpf.c:11683:
+/* Callback to find vmlinux kernel text symbol address, skipping module symbols */

WARNING: line length of 82 exceeds 80 columns
#140: FILE: tools/lib/bpf/libbpf.c:11685:
+			 const char *sym_name, const char *module_name, void *ctx)

CHECK: Comparison to NULL could be written "module_name"
#145: FILE: tools/lib/bpf/libbpf.c:11690:
+	if (module_name != NULL)

CHECK: Blank lines aren't necessary after an open brace '{'
#154: FILE: tools/lib/bpf/libbpf.c:11699:
+	if (strcmp(sym_name, data->func_name) == 0) {
+

CHECK: Alignment should match open parenthesis
#161: FILE: tools/lib/bpf/libbpf.c:11706:
+			pr_warn("kernel symbol '%s': resolution is ambiguous: 0x%llx or 0x%llx\n",
+			sym_name, data->kaddr, sym_addr);

WARNING: line length of 95 exceeds 80 columns
#207: FILE: tools/lib/bpf/libbpf.c:11777:
+		pfd = perf_event_kprobe_open_legacy(legacy_probe, retprobe, optional_func_name,

WARNING: line length of 98 exceeds 80 columns
#224: FILE: tools/lib/bpf/libbpf.c:11795:
+		if ((err == -EADDRNOTAVAIL || (legacy && err == -EINVAL)) && optional_func_name) {

WARNING: line length of 86 exceeds 80 columns
#263: FILE: tools/lib/bpf/libbpf.c:11941:
+			     const char *sym_name, const char *module_name, void *ctx)

total: 0 errors, 17 warnings, 3 checks, 225 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 af2290c341eb ("libbpf: Handle duplicate kprobe symbols in attach_kprobe_opts") 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, 17 warnings, 3 checks, 225 lines checked