linux-kernel - Re: [PATCH net-next v2] selftests: net: Add kernel selftest for RFC 4884

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Message-Id: 
 <176913601461.2368645.10878797221558228157.git-patchwork-notify@kernel.org>
Date: Fri, 23 Jan 2026 02:40:14 +0000
From: patchwork-bot+netdevbpf@...nel.org
To: Danielle Ratson <danieller@...dia.com>
Cc: netdev@...r.kernel.org, linux-kselftest@...r.kernel.org,
 linux-kernel@...r.kernel.org, davem@...emloft.net, edumazet@...gle.com,
 kuba@...nel.org, pabeni@...hat.com, horms@...nel.org, shuah@...nel.org,
 willemdebruijn.kernel@...il.com, idosch@...dia.com, mlxsw@...dia.com
Subject: Re: [PATCH net-next v2] selftests: net: Add kernel selftest for RFC
 4884

Hello:

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

On Wed, 21 Jan 2026 13:46:44 +0200 you wrote:
> RFC 4884 extended certain ICMP messages with a length attribute that
> encodes the length of the "original datagram" field. This is needed so
> that new information could be appended to these messages without
> applications thinking that it is part of the "original datagram" field.
> 
> In version 5.9, the kernel was extended with two new socket options
> (SOL_IP/IP_RECVERR_4884 and SOL_IPV6/IPV6_RECVERR_RFC4884) that allow
> user space to retrieve this length which is basically the offset to the
> ICMP Extension Structure at the end of the ICMP message. This is
> required by user space applications that need to parse the information
> contained in the ICMP Extension Structure. For example, the RFC 5837
> extension for tracepath.
> 
> [...]

Here is the summary with links:
  - [net-next,v2] selftests: net: Add kernel selftest for RFC 4884
    https://git.kernel.org/netdev/net-next/c/d07d7c3dd944

You are awesome, thank you!
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