WARNING: line length of 94 exceeds 80 columns
#98: FILE: tools/bpf/bpftool/btf.c:481:
+	printf("#define ATTR_PRESERVE_ACCESS_INDEX __attribute__((preserve_access_index))\n");

ERROR: space prohibited before that ':' (ctx:WxV)
#130: FILE: tools/lib/bpf/btf.h:244:
+	size_t :0;
 	       ^

CHECK: Please use a blank line after function/struct/union/enum declarations
#133: FILE: tools/lib/bpf/btf.h:246:
 };
+#define btf_dump_opts__last_field record_attrs_str

ERROR: code indent should use tabs where possible
#148: FILE: tools/lib/bpf/btf_dump.c:122:
+         */$

total: 2 errors, 1 warnings, 1 checks, 80 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit 8f45eb262e23 ("bpf: avoid clang-specific push/pop attribute pragmas in bpftool") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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.