linux-kernel - Re: [PATCH net] fsl/man: Inherit parent device and of

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Date:   Tue, 22 Aug 2017 16:32:49 -0700 (PDT)
From:   David Miller <davem@...emloft.net>
To:     f.fainelli@...il.com
Cc:     netdev@...r.kernel.org, junote@...look.com, madalin.bucur@....com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH net] fsl/man: Inherit parent device and of_node

From: Florian Fainelli <f.fainelli@...il.com>
Date: Tue, 22 Aug 2017 15:24:47 -0700

> Junote Cai reported that he was not able to get a DSA setup involving the
> Freescale DPAA/FMAN driver to work and narrowed it down to
> of_find_net_device_by_node(). This function requires the network device's
> device reference to be correctly set which is the case here, though we have
> lost any device_node association there.
> 
> The problem is that dpaa_eth_add_device() allocates a "dpaa-ethernet" platform
> device, and later on dpaa_eth_probe() is called but SET_NETDEV_DEV() won't be
> propagating &pdev->dev.of_node properly. Fix this by inherenting both the parent
> device and the of_node when dpaa_eth_add_device() creates the platform device.
> 
> Fixes: 3933961682a3 ("fsl/fman: Add FMan MAC driver")
> Signed-off-by: Florian Fainelli <f.fainelli@...il.com>

Applied and queued up for -stable, thanks.