WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#19: 
new file mode 100644

WARNING: line length of 86 exceeds 80 columns
#52: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:29:
+	ASSERT_EQ(hdr->kind_layout_len, sizeof(struct btf_kind_layout) * NR_BTF_KINDS,

WARNING: Missing a blank line after declarations
#73: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:50:
+	__s32 int_id, unrec_id, id, id2;
+	LIBBPF_OPTS(btf_new_opts, opts);

WARNING: line length of 82 exceeds 80 columns
#124: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:101:
+	t = (void *)hdr + hdr->hdr_len + hdr->type_off + sizeof(struct btf_type) +

WARNING: line length of 85 exceeds 80 columns
#159: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:136:
+		/* id of "test_lookup2" will be id2 -1 as we have removed one type */

CHECK: Blank lines aren't necessary before a close brace '}'
#164: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:141:
+
+	}

CHECK: spaces preferred around that '/' (ctx:VxV)
#172: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:149:
+	k[NR_BTF_KINDS].elem_sz = sizeof(struct btf_type)/2;
 	                                                 ^

WARNING: line length of 85 exceeds 80 columns
#181: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:158:
+		/* id of "test_lookup2" will be id2 -1 as we have removed one type */

CHECK: Blank lines aren't necessary before a close brace '}'
#186: FILE: tools/testing/selftests/bpf/prog_tests/btf_kind.c:163:
+
+	}

total: 0 errors, 6 warnings, 3 checks, 176 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 7c17c9143416 ("selftests/bpf: test kind encoding/decoding") 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.
total: 0 errors, 6 warnings, 3 checks, 176 lines checked