Re: [PATCH] drivers/net/wan/lapbether: Added needed_headroom and a skb->len check

From: Xie He
Date: Thu Aug 06 2020 - 13:29:41 EST


On Thu, Aug 6, 2020 at 12:47 AM Willem de Bruijn
<willemdebruijn.kernel@xxxxxxxxx> wrote:
>
> Acked-by: Willem de Bruijn <willemb@xxxxxxxxxx>
>
> The in-band signal byte is required, but stripped by lapbeth_xmit.
> Subsequent code will prefix additional headers, including an Ethernet
> link layer. The extra space needs to be reserved, but not pulled in
> packet_snd with skb_reserve, so has to use needed_headroom instead of
> hard_header_len.

Thank you, Willem!