WARNING: line length of 94 exceeds 80 columns
#38: FILE: tools/lib/bpf/features.c:422:
+		BTF_TYPE_ENC(1 /* "a" */, BTF_INFO_ENC(BTF_KIND_FUNC, 0, BTF_FUNC_GLOBAL), 3),

WARNING: line length of 94 exceeds 80 columns
#43: FILE: tools/lib/bpf/features.c:427:
+		BTF_TYPE_ENC(3 /* "b" */, BTF_INFO_ENC(BTF_KIND_FUNC, 0, BTF_FUNC_GLOBAL), 5),

CHECK: spaces preferred around that '+' (ctx:BxV)
#49: FILE: tools/lib/bpf/features.c:433:
+		BPF_CALL_REL(+1),
 		             ^

CHECK: Alignment should match open parenthesis
#60: FILE: tools/lib/bpf/features.c:444:
+	LIBBPF_OPTS(bpf_prog_load_opts, opts,
+		.token_fd = token_fd,

WARNING: line length of 98 exceeds 80 columns
#65: FILE: tools/lib/bpf/features.c:449:
+	btf_fd = libbpf__load_raw_btf((char *)types, sizeof(types), strs, sizeof(strs), token_fd);

WARNING: line length of 82 exceeds 80 columns
#185: FILE: tools/lib/bpf/libbpf_internal.h:361:
+	/* Kernel supports arg:ctx tag (__arg_ctx) for global subprogs natively */

total: 0 errors, 4 warnings, 2 checks, 155 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 c64d3291ad52 ("libbpf: integrate __arg_ctx feature detector into kernel_supports()") 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, 4 warnings, 2 checks, 155 lines checked