netdev - Re: [PATCH 2/2] ether: Add ETH_P

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Message-Id: <20191218.151221.1979818977536859260.davem@davemloft.net>
Date:   Wed, 18 Dec 2019 15:12:21 -0800 (PST)
From:   David Miller <davem@...emloft.net>
To:     andre.guedes@...el.com
Cc:     netdev@...r.kernel.org
Subject: Re: [PATCH 2/2] ether: Add ETH_P_AVTP macro

From: Andre Guedes <andre.guedes@...el.com>
Date: Wed, 18 Dec 2019 14:44:48 -0800

> This patch adds the ETH_P_AVTP macro which defines the Audio/Video
> Transport Protocol (AVTP) ethertype assigned to 0x22F0, according to:
> 
> http://standards-oui.ieee.org/ethertype/eth.txt
> 
> AVTP is the transport protocol utilized in Audio/Video Bridging (AVB),
> and it is defined by IEEE 1722 standard.
> 
> Note that we have ETH_P_TSN macro defined with the number assigned to
> AVTP. However, there is no "TSN" ethertype. TSN is not a protocol, but a
> set of features to deliver networking determinism, so ETH_P_TSN can be a
> bit misleading. For compatibility reasons we should keep it around.
> This patch re-defines it using the ETH_P_AVTP macro to make it explicit.
> 
> Signed-off-by: Andre Guedes <andre.guedes@...el.com>

Likewise, let's see an in-kernel user first.