CHECK: Prefer using the BIT macro
#51: FILE: tools/bpf/resolve_btfids/main.c:155:
+#define KF_IMPLICIT_ARGS (1 << 16)

WARNING: line length of 90 exceeds 80 columns
#77: FILE: tools/bpf/resolve_btfids/main.c:859:
+static const struct btf_type *btf_type_skip_qualifiers(const struct btf *btf, s32 type_id)

WARNING: line length of 89 exceeds 80 columns
#170: FILE: tools/bpf/resolve_btfids/main.c:952:
+			 * Lower bound is exclusive to skip the 8-byte header of the set.

WARNING: line length of 94 exceeds 80 columns
#171: FILE: tools/bpf/resolve_btfids/main.c:953:
+			 * Upper bound is inclusive to capture the last entry at offset 8*cnt.

WARNING: line length of 81 exceeds 80 columns
#237: FILE: tools/bpf/resolve_btfids/main.c:1019:
+static int build_btf2btf_context(struct object *obj, struct btf2btf_context *ctx)

CHECK: Please don't use multiple blank lines
#258: FILE: tools/bpf/resolve_btfids/main.c:1040:
+
+

WARNING: line length of 93 exceeds 80 columns
#307: FILE: tools/bpf/resolve_btfids/main.c:1089:
+static int process_kfunc_with_implicit_args(struct btf2btf_context *ctx, struct kfunc *kfunc)

WARNING: line length of 94 exceeds 80 columns
#320: FILE: tools/bpf/resolve_btfids/main.c:1102:
+		pr_err("ERROR: resolve_btfids: btf id %d is not a function\n", kfunc->btf_id);

WARNING: line length of 99 exceeds 80 columns
#329: FILE: tools/bpf/resolve_btfids/main.c:1111:
+		pr_err("ERROR: resolve_btfids: btf id %d is not a function prototype\n", proto_id);

WARNING: line length of 88 exceeds 80 columns
#333: FILE: tools/bpf/resolve_btfids/main.c:1115:
+	len = snprintf(tmp_name, sizeof(tmp_name), "%s%s", kfunc->name, KF_IMPL_SUFFIX);

WARNING: line length of 96 exceeds 80 columns
#335: FILE: tools/bpf/resolve_btfids/main.c:1117:
+		pr_err("ERROR: function name is too long: %s%s\n", kfunc->name, KF_IMPL_SUFFIX);

WARNING: line length of 90 exceeds 80 columns
#340: FILE: tools/bpf/resolve_btfids/main.c:1122:
+		pr_debug("resolve_btfids: function %s already exists in BTF\n", tmp_name);

WARNING: line length of 90 exceeds 80 columns
#347: FILE: tools/bpf/resolve_btfids/main.c:1129:
+		pr_err("ERROR: resolve_btfids: failed to add func %s to BTF\n", tmp_name);

WARNING: line length of 90 exceeds 80 columns
#351: FILE: tools/bpf/resolve_btfids/main.c:1133:
+	/* Copy all decl tags except "bpf_kfunc" from the original kfunc to the new one */

WARNING: line length of 82 exceeds 80 columns
#364: FILE: tools/bpf/resolve_btfids/main.c:1146:
+			err = btf__add_decl_attr(btf, tag_name, new_func_id, idx);

WARNING: line length of 81 exceeds 80 columns
#366: FILE: tools/bpf/resolve_btfids/main.c:1148:
+			err = btf__add_decl_tag(btf, tag_name, new_func_id, idx);

WARNING: line length of 96 exceeds 80 columns
#379: FILE: tools/bpf/resolve_btfids/main.c:1161:
+		pr_err("ERROR: resolve_btfids: failed to add func proto for %s\n", kfunc->name);

WARNING: line length of 95 exceeds 80 columns
#404: FILE: tools/bpf/resolve_btfids/main.c:1186:
+	pr_debug("resolve_btfids: updated BTF for kfunc with implicit args %s\n", kfunc->name);

total: 0 errors, 16 warnings, 2 checks, 400 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 4216daa8d0ee ("resolve_btfids: Support for 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, 16 warnings, 2 checks, 400 lines checked