Re: [PATCH bpf v5] bpf: Fixed segment issue when downgrade gso_size

[Willem de Bruijn]

On Sun, Jul 21, 2024 at 8:08 PM Fred Li <dracodingfly@xxxxxxxxx> wrote:
>
> Linearize skb when downgrad gso_size to prevent triggering
> the BUG_ON during segment skb as described in [1].
>
> v5 changes:
>  - add bpf subject prefix.
>  - adjust message to imperative mood.
>
> v4 changes:
>  - add fixed tag.
>
> v3 changes:
>  - linearize skb if having frag_list as Willem de Bruijn suggested [2].
>
> [1] https://lore.kernel.org/all/20240626065555.35460-2-dracodingfly@xxxxxxxxx/
> [2] https://lore.kernel.org/all/668d5cf1ec330_1c18c32947@xxxxxxxxxxxxxxxxxxxxxx.notmuch/
>
> Fixes: 2be7e212d541 ("bpf: add bpf_skb_adjust_room helper")
> Signed-off-by: Fred Li <dracodingfly@xxxxxxxxx>

Reviewed-by: Willem de Bruijn <willemb@xxxxxxxxxx>

My comments were informational, for a next patch if any, really. v4
was fine. v5 is too.