Re: [PATCH net-next v3] seg6: reallocate the skb head on L2 encapsulation only when needed

From: patchwork-bot+netdevbpf

Date: Wed Sep 30 2026 - 19:47:51 EST


Hello:

This patch was applied to netdev/net-next.git (main)
by Jakub Kicinski <kuba@xxxxxxxxxx>:

On Fri, 25 Sep 2026 23:49:53 +0900 you wrote:
> The L2 encapsulation modes of the seg6 lwtunnel reallocate the skb head
> on every packet, where the IPv6 encapsulation modes reallocate only when
> they have to. Ask for the whole encapsulation up front instead, so that
> the reallocation happens at most once and only when the headroom really
> is too small:
>
> skb->mac_len + sizeof(struct ipv6hdr) + ipv6_optlen(tinfo->srh)
> + dst_dev_overhead(cache_dst, skb)
>
> [...]

Here is the summary with links:
- [net-next,v3] seg6: reallocate the skb head on L2 encapsulation only when needed
https://git.kernel.org/netdev/net-next/c/bf515c9fae87

You are awesome, thank you!
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