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Date: Tue, 29 Sep 2026 18:59:36 -0700
From: Jakub Kicinski <kuba@kernel.org>
To: Quentin Freimanis <quentin@q-lab.dev>
Cc: netdev@vger.kernel.org, Andrew Lunn <andrew+netdev@lunn.ch>, "David S.
 Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@kernel.org>, Paolo
 Abeni <pabeni@redhat.com>, Steen Hegelund <Steen.Hegelund@microchip.com>,
 Daniel Machon <daniel.machon@microchip.com>, UNGLinuxDriver@microchip.com,
 Lars Povlsen <lars.povlsen@microchip.com>, Bjarni Jonasson
 <bjarni.jonasson@microchip.com>, linux-arm-kernel@lists.infradead.org,
 linux-kernel@vger.kernel.org
Subject: Re: [PATCH net] net: sparx5: make ports inherit the switch base mac
 address type
Message-ID: <20260929185936.687250f9@kernel.org>
In-Reply-To: <20260928045012.30178-1-quentin@q-lab.dev>
References: <20260928045012.30178-1-quentin@q-lab.dev>
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On Sun, 27 Sep 2026 21:50:12 -0700 Quentin Freimanis wrote:
> 0 is NET_ADDR_PERM, so userspace thinks this is a stable address. 

Could you please explain the end-user impact of this?
Unclear to me from the commit msg if this is something that broke
your deployment / scripts or maybe you simply noticed it from code
inspection / LLM scan.

No need to repost, just explain, I'll add it when applying.

> Fix by tracking the base MAC address assign type in the sparx5 struct
> and applying it to each port's netdev.

Generally no need to repeat what an average reader can easily grok 
from the diff.