On 8/28/20 7:19 AM, Yonghong Song wrote:
bpf_link_info.iter is used by link_query to return bpf_iter_link_info to user space. Fields may be different ,e.g., map_fd vs. map_id, so we cannot reuse the exact structure. But make them similar, e.g., struct bpf_link_info { /* common fields */ union { struct { ... } raw_tracepoint; struct { ... } tracing; ... struct { /* common fields for iter */ union { struct { __u32 map_id; } map; /* other structs for other targets */ }; }; }; }; so the structure is extensible the same way as bpf_iter_link_info.Fixes: 6b0a249a301e ("bpf: Implement link_query for bpf iterators") Acked-by: Andrii Nakryiko <andr...@fb.com> Signed-off-by: Yonghong Song <y...@fb.com>
Applied, thanks!
