WARNING: line length of 85 exceeds 80 columns
#146: FILE: tools/lib/bpf/btf.c:6003:
+		err = btf_ext_visit_type_ids(btf_ext, btf_permute_remap_type_id, &p);

ERROR: space prohibited before that ':' (ctx:WxV)
#178: FILE: tools/lib/bpf/btf.h:288:
+	size_t :0;
 	       ^

CHECK: Please use a blank line after function/struct/union/enum declarations
#180: FILE: tools/lib/bpf/btf.h:290:
+};
+#define btf_permute_opts__last_field btf_ext

WARNING: line length of 94 exceeds 80 columns
#183: FILE: tools/lib/bpf/btf.h:293:
+ * @brief **btf__permute()** rearranges BTF types in-place according to a specified ID mapping

WARNING: line length of 86 exceeds 80 columns
#187: FILE: tools/lib/bpf/btf.h:297:
+ * @param opts Optional parameters, including BTF extension data for reference updates

WARNING: line length of 81 exceeds 80 columns
#202: FILE: tools/lib/bpf/btf.h:312:
+ * - @id_map_cnt must be `btf__type_cnt(btf) - btf__type_cnt(btf__base_btf(btf))`

total: 1 errors, 4 warnings, 1 checks, 189 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 843e1d99f8ea ("libbpf: Add BTF permutation support for type reordering") 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.