RE: [PATCHv17 bpf-next 2/6] bpf: add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL

John Fastabend
2021-01-27T21:52:04Z

Hangbin Liu wrote:
> Add a new bpf argument type ARG_CONST_MAP_PTR_OR_NULL which could be
> used when we want to allow NULL pointer for map parameter. The bpf helper
> need to take care and check if the map is NULL when use this type.
>
> Acked-by: Toke Høiland-Jørgensen <toke@redhat.com>
> Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
>
> ---
> v13-v17: no update
> v11-v12: rebase the patch to latest bpf-next
> v10: remove useless CONST_PTR_TO_MAP_OR_NULL and Copy-paste comment.
> v9: merge the patch from [1] in to this series.
> v1-v8: no this patch
>
> [1] https://lore.kernel.org/bpf/20200715070001.2048207-1-liuhangbin@gmail.com/
> ---

LGTM

Acked-by: John Fastabend <john.fastabend@gmail.com>