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

On Thu, Aug 6, 2020 at 12:47 AM Willem de Bruijn
[off-list ref] wrote:

Acked-by: Willem de Bruijn <willemb@google.com>

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!