netdev - Re: [net-next v13 04/11] net: mtip: The L2 switch driver for imx287

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Message-ID: <20250624232242.3448f562@wsk>
Date: Tue, 24 Jun 2025 23:22:42 +0200
From: Lukasz Majewski <lukma@...x.de>
To: Paolo Abeni <pabeni@...hat.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, davem@...emloft.net, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>, Rob Herring
 <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer
 <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, Richard Cochran
 <richardcochran@...il.com>, netdev@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, Stefan Wahren
 <wahrenst@....net>, Simon Horman <horms@...nel.org>, Andrew Lunn
 <andrew@...n.ch>
Subject: Re: [net-next v13 04/11] net: mtip: The L2 switch driver for imx287

Hi Paolo,

> On 6/22/25 11:37 AM, Lukasz Majewski wrote:
> > +static void mtip_adjust_link(struct net_device *dev)
> > +{
> > +	struct mtip_ndev_priv *priv = netdev_priv(dev);
> > +	struct switch_enet_private *fep = priv->fep;
> > +	struct phy_device *phy_dev;
> > +	int status_change = 0, idx;
> > +	unsigned long flags;
> > +
> > +	spin_lock_irqsave(&fep->hw_lock, flags);  
> 
> The above kind of lock look incorrect. In later patch you use
> spin_lock_bh(), and the context here is never irq.
> 
> Should be spin_lock_bh()

Thanks for spotting. I've changed it.

> 
> /P
> 




Best regards,

Lukasz Majewski

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