Re: [PATCH bpf-next v3 02/10] bpf: btf: Validate type reference

Hi Martin, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] url: https://github.com/0day-ci/linux/commits/Martin-KaFai-Lau/BTF-BPF-Type-Format/20180417-142247 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master

[PATCH bpf-next v3 02/10] bpf: btf: Validate type reference

After collecting all btf_type in the first pass in an earlier patch, the second pass (in this patch) can validate the reference types (e.g. the referring type does exist and it does not refer to itself). While checking the reference type, it also gathers other information (e.g. the size of an