Re: [PATCH net-next v2] l2tp: ppp: use max L2TP header size for PPP channel hdrlen

[email protected] Thu, 19 Mar 2026 10:20:05 +0000

Newsgroups	org.kernel.vger.linux-ppp,org.kernel.vger.linux-kernel,org.kernel.vger.netdev
Message-ID	<177391560504.1132014.16515516280241252306.git-patchwork-notify@kernel.org>

Hello:

This patch was applied to netdev/net-next.git (main)
by Paolo Abeni <[email protected]>:

On Tue, 17 Mar 2026 13:41:40 +0800 you wrote:
> chan.hdrlen is read once at channel registration by
> ppp_register_net_channel(), and used to set the PPP net device's
> hard_header_len. It was set to PPPOL2TP_L2TP_HDR_SIZE_NOSEQ (6), which
> is 4 bytes too small if sequence numbers are later enabled via
> setsockopt(PPPOL2TP_SO_SENDSEQ), causing unnecessary skb reallocations
> on the TX path.
> 
> [...]

Here is the summary with links:
  - [net-next,v2] l2tp: ppp: use max L2TP header size for PPP channel hdrlen
    https://git.kernel.org/netdev/net-next/c/9f4960b94f1a

You are awesome, thank you!
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