ERROR: "foo * bar" should be "foo *bar"
#47: FILE: tools/lib/bpf/skel_internal.h:71:
+	void * excl_prog_hash;

CHECK: No space is necessary after a cast
#69: FILE: tools/lib/bpf/skel_internal.h:239:
+	attr.excl_prog_hash = (unsigned long) excl_prog_hash;

WARNING: line length of 81 exceeds 80 columns
#107: FILE: tools/lib/bpf/skel_internal.h:342:
+	const size_t prog_load_attr_sz = offsetofend(union bpf_attr, keyring_id);

CHECK: multiple assignments should be avoided
#113: FILE: tools/lib/bpf/skel_internal.h:347:
+	err = map_fd = skel_map_create(BPF_MAP_TYPE_ARRAY, "__loader.map",

CHECK: No space is necessary after a cast
#142: FILE: tools/lib/bpf/skel_internal.h:382:
+	attr.signature = (long) opts->signature;

total: 1 errors, 1 warnings, 3 checks, 110 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 19b946fde412 ("libbpf: Update light skeleton for signing") 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.