On 1/17/2024 9:06 PM, Andrey Grafin wrote:
> This patch allows to auto create BPF_MAP_TYPE_ARRAY_OF_MAPS and
> BPF_MAP_TYPE_HASH_OF_MAPS with values of BPF_MAP_TYPE_PERF_EVENT_ARRAY
> by bpf_object__load().
>
> Previous behaviour created a zero filled btf_map_def for inner maps and
> tried to use it for a map creation but the linux kernel forbids to create
> a BPF_MAP_TYPE_PERF_EVENT_ARRAY map with max_entries=0.
>
> Fixes: 646f02ffdd49 ("libbpf: Add BTF-defined map-in-map support")
> Signed-off-by: Andrey Grafin <conquistador@xxxxxxxxxxxxxx>
Acked-by: Hou Tao <houtao1@xxxxxxxxxx>
