Re: [PATCH net] drivers/net/wan/lapbether: Make skb->protocol consistent with the header

[David Miller]

From: Xie He <xie.he.0141@xxxxxxxxx>
Date: Wed, 16 Sep 2020 09:49:18 -0700

> This driver is a virtual driver stacked on top of Ethernet interfaces.
> 
> When this driver transmits data on the Ethernet device, the skb->protocol
> setting is inconsistent with the Ethernet header prepended to the skb.
> 
> This causes a user listening on the Ethernet interface with an AF_PACKET
> socket, to see different sll_protocol values for incoming and outgoing
> frames, because incoming frames would have this value set by parsing the
> Ethernet header.
> 
> This patch changes the skb->protocol value for outgoing Ethernet frames,
> making it consistent with the Ethernet header prepended. This makes a
> user listening on the Ethernet device with an AF_PACKET socket, to see
> the same sll_protocol value for incoming and outgoing frames.
> 
> Cc: Martin Schiller <ms@xxxxxxxxxx>
> Signed-off-by: Xie He <xie.he.0141@xxxxxxxxx>

Applied, thank you.