netdev - Re: [PATCH net-next v3] mptcp: fix length of MP

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Message-Id: <161231761081.3354.9559043365132728665.git-patchwork-notify@kernel.org>
Date:   Wed, 03 Feb 2021 02:00:10 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Davide Caratti <dcaratti@...hat.com>
Cc:     mathew.j.martineau@...ux.intel.com, matthieu.baerts@...sares.net,
        davem@...emloft.net, kuba@...nel.org, geliangtang@...il.com,
        netdev@...r.kernel.org
Subject: Re: [PATCH net-next v3] mptcp: fix length of MP_PRIO suboption

Hello:

This patch was applied to netdev/net-next.git (refs/heads/master):

On Mon,  1 Feb 2021 14:05:26 +0100 you wrote:
> With version 0 of the protocol it was legal to encode the 'Subflow Id' in
> the MP_PRIO suboption, to specify which subflow would change its 'Backup'
> flag. This has been removed from v1 specification: thus, according to RFC
> 8684 §3.3.8, the resulting 'Length' for MP_PRIO changed from 4 to 3 byte.
> 
> Current Linux generates / parses MP_PRIO according to the old spec, using
> 'Length' equal to 4, and hardcoding 1 as 'Subflow Id'; RFC compliance can
> improve if we change 'Length' in other to become 3, leaving a 'Nop' after
> the MP_PRIO suboption. In this way the kernel will emit and accept *only*
> MP_PRIO suboptions that are compliant to version 1 of the MPTCP protocol.
> 
> [...]

Here is the summary with links:
  - [net-next,v3] mptcp: fix length of MP_PRIO suboption
    https://git.kernel.org/netdev/net-next/c/ec99a470c7d5

You are awesome, thank you!
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