Re: [PATCH net] l2tp: account for IP version in SKB headroom

[Simon Horman]

On Sat, Dec 06, 2025 at 05:26:01PM +0100, David Bauer wrote:
> Account for the IP version of the tunnel when accounting skb headroom on
> xmit. This avoids having to potentially copy the skb a second time down
> the stack due to allocating not enough space for IPv6 headers in case
> the tunnel uses IPv6.
> 
> Fixes: b784e7ebfce8 ("L2TP:Adjust intf MTU, add underlay L3, L2 hdrs.")
> Signed-off-by: David Bauer <mail@xxxxxxxxxxxxxxx>

Hi David,

This feels more like an enhancement for net-next than a fix for net.

If so, please resubmit for net-next once it reopens, after 2nd January.

In that case the fixes tag should be dropped.
But you can cite a commit in free-form text in the commit message -
above the tags - something like this.

...

Introduced by commit b784e7ebfce8 ("L2TP:Adjust intf MTU, add underlay L3,
L2 hdrs.").

Signed-off-by: ...