linux-kernel - Re: [PATCH 55/61] usb: mtu3: simplify getting .drvdata

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Date:   Fri, 20 Apr 2018 15:46:24 +0800
From:   Chunfeng Yun <chunfeng.yun@...iatek.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-renesas-soc@...r.kernel.org>,
        <kernel-janitors@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-usb@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: Re: [PATCH 55/61] usb: mtu3: simplify getting .drvdata

hi,

On Thu, 2018-04-19 at 16:06 +0200, Wolfram Sang wrote:
> We should get drvdata 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. Please apply individually.
> 
>  drivers/usb/mtu3/mtu3_plat.c | 6 ++----
>  1 file changed, 2 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/usb/mtu3/mtu3_plat.c b/drivers/usb/mtu3/mtu3_plat.c
> index 628d5ce356ca..46551f6d16fd 100644
> --- a/drivers/usb/mtu3/mtu3_plat.c
> +++ b/drivers/usb/mtu3/mtu3_plat.c
> @@ -447,8 +447,7 @@ static int mtu3_remove(struct platform_device *pdev)
>   */
>  static int __maybe_unused mtu3_suspend(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct ssusb_mtk *ssusb = platform_get_drvdata(pdev);
> +	struct ssusb_mtk *ssusb = dev_get_drvdata(dev);
>  
>  	dev_dbg(dev, "%s\n", __func__);
>  
> @@ -466,8 +465,7 @@ static int __maybe_unused mtu3_suspend(struct device *dev)
>  
>  static int __maybe_unused mtu3_resume(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct ssusb_mtk *ssusb = platform_get_drvdata(pdev);
> +	struct ssusb_mtk *ssusb = dev_get_drvdata(dev);
>  	int ret;
>  
>  	dev_dbg(dev, "%s\n", __func__);

Acked-by: Chunfeng Yun <chunfeng.yun@...iatek.com>

Thanks