linux-kernel - Re: [PATCH 7/9] net: mdio: mdio-bcm-iproc: simplify getting .driver

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Date:   Mon, 20 Sep 2021 14:56:44 -0700
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        linux-kernel@...r.kernel.org
Cc:     linux-renesas-soc@...r.kernel.org, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list@...adcom.com, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 7/9] net: mdio: mdio-bcm-iproc: simplify getting
 .driver_data

On 9/20/21 2:05 AM, Wolfram Sang wrote:
> We should get 'driver_data' from 'struct device' directly. Going via
> platform_device is an unneeded step back and forth.
> 
> Signed-off-by: Wolfram Sang <wsa+renesas@...g-engineering.com>
> ---
> 
> Build tested only. buildbot is happy.
> 
>  drivers/net/mdio/mdio-bcm-iproc.c | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/drivers/net/mdio/mdio-bcm-iproc.c b/drivers/net/mdio/mdio-bcm-iproc.c
> index 77fc970cdfde..5666cfab15b9 100644
> --- a/drivers/net/mdio/mdio-bcm-iproc.c
> +++ b/drivers/net/mdio/mdio-bcm-iproc.c
> @@ -181,8 +181,7 @@ static int iproc_mdio_remove(struct platform_device *pdev)
>  #ifdef CONFIG_PM_SLEEP
>  static int iproc_mdio_resume(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct iproc_mdio_priv *priv = platform_get_drvdata(pdev);
> +	struct iproc_mdio_priv *priv = dev_get_drvdata(dev);

The change looks good to me, however if you change from
platform_get_drvdata() to dev_get_drvdata(), you might also want to
change from using platform_set_drvdata() to dev_set_drvdata() for
symmetry no? If not, then maybe this patch should be dropped?
-- 
Florian