Subject: Re: [PATCH] bpf: devmap: pass on return value of bpf_map_precharge_memlock

From: Daniel Borkmann <[email-masked]>
Date: Mon, 18 Sep 2017 15:14:01 +0200

On 09/18/2017 03:03 PM, Tobias Klauser wrote:
> If bpf_map_precharge_memlock in dev_map_alloc, -ENOMEM is returned
> regardless of the actual error produced by bpf_map_precharge_memlock.
> Fix it by passing on the error returned by bpf_map_precharge_memlock.
>
> Also return -EINVAL instead of -ENOMEM if the page count overflow check
> fails.
>
> This makes dev_map_alloc match the behavior of other bpf maps' alloc
> functions wrt. return values.
>
> Signed-off-by: Tobias Klauser <[email-masked]>

(This would then need to go via net tree.)

Acked-by: Daniel Borkmann <[email-masked]>