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

WARNING: line length of 90 exceeds 80 columns
#74: FILE: tools/bpf/resolve_btfids/main.c:857:
+static const struct btf_type *btf_type_skip_qualifiers(const struct btf *btf, s32 type_id)

WARNING: line length of 89 exceeds 80 columns
#153: FILE: tools/bpf/resolve_btfids/main.c:936:
+			 * Lower bound is exclusive to skip the 8-byte header of the set.

WARNING: line length of 94 exceeds 80 columns
#154: FILE: tools/bpf/resolve_btfids/main.c:937:
+			 * Upper bound is inclusive to capture the last entry at offset 8*cnt.

WARNING: line length of 81 exceeds 80 columns
#242: FILE: tools/bpf/resolve_btfids/main.c:1025:
+static int build_btf2btf_context(struct object *obj, struct btf2btf_context *ctx)

CHECK: Please don't use multiple blank lines
#263: FILE: tools/bpf/resolve_btfids/main.c:1046:
+
+

WARNING: line length of 93 exceeds 80 columns
#312: FILE: tools/bpf/resolve_btfids/main.c:1095:
+static int process_kfunc_with_implicit_args(struct btf2btf_context *ctx, struct kfunc *kfunc)

WARNING: line length of 94 exceeds 80 columns
#325: FILE: tools/bpf/resolve_btfids/main.c:1108:
+		pr_err("ERROR: resolve_btfids: btf id %d is not a function\n", kfunc->btf_id);

WARNING: line length of 99 exceeds 80 columns
#334: FILE: tools/bpf/resolve_btfids/main.c:1117:
+		pr_err("ERROR: resolve_btfids: btf id %d is not a function prototype\n", proto_id);

WARNING: line length of 88 exceeds 80 columns
#338: FILE: tools/bpf/resolve_btfids/main.c:1121:
+	len = snprintf(tmp_name, sizeof(tmp_name), "%s%s", kfunc->name, KF_IMPL_SUFFIX);

WARNING: line length of 96 exceeds 80 columns
#340: FILE: tools/bpf/resolve_btfids/main.c:1123:
+		pr_err("ERROR: function name is too long: %s%s\n", kfunc->name, KF_IMPL_SUFFIX);

WARNING: line length of 90 exceeds 80 columns
#345: FILE: tools/bpf/resolve_btfids/main.c:1128:
+		pr_debug("resolve_btfids: function %s already exists in BTF\n", tmp_name);

WARNING: line length of 90 exceeds 80 columns
#352: FILE: tools/bpf/resolve_btfids/main.c:1135:
+		pr_err("ERROR: resolve_btfids: failed to add func %s to BTF\n", tmp_name);

WARNING: line length of 90 exceeds 80 columns
#356: FILE: tools/bpf/resolve_btfids/main.c:1139:
+	/* Copy all decl tags except "bpf_kfunc" from the original kfunc to the new one */

WARNING: line length of 82 exceeds 80 columns
#369: FILE: tools/bpf/resolve_btfids/main.c:1152:
+			err = btf__add_decl_attr(btf, tag_name, new_func_id, idx);

WARNING: line length of 81 exceeds 80 columns
#371: FILE: tools/bpf/resolve_btfids/main.c:1154:
+			err = btf__add_decl_tag(btf, tag_name, new_func_id, idx);

WARNING: line length of 96 exceeds 80 columns
#384: FILE: tools/bpf/resolve_btfids/main.c:1167:
+		pr_err("ERROR: resolve_btfids: failed to add func proto for %s\n", kfunc->name);

WARNING: line length of 95 exceeds 80 columns
#409: FILE: tools/bpf/resolve_btfids/main.c:1192:
+	pr_debug("resolve_btfids: updated BTF for kfunc with implicit args %s\n", kfunc->name);

total: 0 errors, 16 warnings, 2 checks, 401 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 fc8272a08a7b ("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, 401 lines checked