linux-kernel - Re: [PATCH net-next v3 1/4] net: stmmac: Switch to zero-copy in non-XDP RX path

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Message-ID: <2ac94866-7258-45f1-be7c-595b64595494@lunn.ch>
Date: Fri, 24 Jan 2025 16:14:04 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Furong Xu <0x1207@...il.com>
Cc: Brad Griffis <bgriffis@...dia.com>, Jon Hunter <jonathanh@...dia.com>,
	netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Alexander Lobakin <aleksander.lobakin@...el.com>,
	Joe Damato <jdamato@...tly.com>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>, xfr@...look.com,
	"linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>
Subject: Re: [PATCH net-next v3 1/4] net: stmmac: Switch to zero-copy in
 non-XDP RX path

> It is not an actual fix, it is only for diagnostic purposes.
> 
> >   So perhaps the only fix needed is to add dma-coherent to our device tree?
> 
> Yes, add dma-coherent to ethernet node is the correct fix.

What do you think about the comment i made?

     Andrew