linux-kernel - Re: [PATCH 59/61] watchdog: simplify getting .drvdata

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Message-ID: <20180419200623.GB24732@roeck-us.net>
Date:   Thu, 19 Apr 2018 13:06:23 -0700
From:   Guenter Roeck <linux@...ck-us.net>
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,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Michal Simek <michal.simek@...inx.com>,
        linux-watchdog@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 59/61] watchdog: simplify getting .drvdata

On Thu, Apr 19, 2018 at 04:06:29PM +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>

Reviewed-by: Guenter Roeck <linux@...ck-us.net>

> ---
> 
> Build tested only. buildbot is happy. Please apply individually.
> 
>  drivers/watchdog/cadence_wdt.c   | 6 ++----
>  drivers/watchdog/of_xilinx_wdt.c | 6 ++----
>  drivers/watchdog/wdat_wdt.c      | 6 ++----
>  3 files changed, 6 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/watchdog/cadence_wdt.c b/drivers/watchdog/cadence_wdt.c
> index 3ec1f418837d..c3924356d173 100644
> --- a/drivers/watchdog/cadence_wdt.c
> +++ b/drivers/watchdog/cadence_wdt.c
> @@ -418,8 +418,7 @@ static void cdns_wdt_shutdown(struct platform_device *pdev)
>   */
>  static int __maybe_unused cdns_wdt_suspend(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct cdns_wdt *wdt = platform_get_drvdata(pdev);
> +	struct cdns_wdt *wdt = dev_get_drvdata(dev);
>  
>  	if (watchdog_active(&wdt->cdns_wdt_device)) {
>  		cdns_wdt_stop(&wdt->cdns_wdt_device);
> @@ -438,8 +437,7 @@ static int __maybe_unused cdns_wdt_suspend(struct device *dev)
>  static int __maybe_unused cdns_wdt_resume(struct device *dev)
>  {
>  	int ret;
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct cdns_wdt *wdt = platform_get_drvdata(pdev);
> +	struct cdns_wdt *wdt = dev_get_drvdata(dev);
>  
>  	if (watchdog_active(&wdt->cdns_wdt_device)) {
>  		ret = clk_prepare_enable(wdt->clk);
> diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
> index 4acbe05e27bb..d3f7eb046678 100644
> --- a/drivers/watchdog/of_xilinx_wdt.c
> +++ b/drivers/watchdog/of_xilinx_wdt.c
> @@ -268,8 +268,7 @@ static int xwdt_remove(struct platform_device *pdev)
>   */
>  static int __maybe_unused xwdt_suspend(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct xwdt_device *xdev = platform_get_drvdata(pdev);
> +	struct xwdt_device *xdev = dev_get_drvdata(dev);
>  
>  	if (watchdog_active(&xdev->xilinx_wdt_wdd))
>  		xilinx_wdt_stop(&xdev->xilinx_wdt_wdd);
> @@ -285,8 +284,7 @@ static int __maybe_unused xwdt_suspend(struct device *dev)
>   */
>  static int __maybe_unused xwdt_resume(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct xwdt_device *xdev = platform_get_drvdata(pdev);
> +	struct xwdt_device *xdev = dev_get_drvdata(dev);
>  	int ret = 0;
>  
>  	if (watchdog_active(&xdev->xilinx_wdt_wdd))
> diff --git a/drivers/watchdog/wdat_wdt.c b/drivers/watchdog/wdat_wdt.c
> index 0da9943d405f..56ad19608a9b 100644
> --- a/drivers/watchdog/wdat_wdt.c
> +++ b/drivers/watchdog/wdat_wdt.c
> @@ -447,8 +447,7 @@ static int wdat_wdt_probe(struct platform_device *pdev)
>  #ifdef CONFIG_PM_SLEEP
>  static int wdat_wdt_suspend_noirq(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct wdat_wdt *wdat = platform_get_drvdata(pdev);
> +	struct wdat_wdt *wdat = dev_get_drvdata(dev);
>  	int ret;
>  
>  	if (!watchdog_active(&wdat->wdd))
> @@ -475,8 +474,7 @@ static int wdat_wdt_suspend_noirq(struct device *dev)
>  
>  static int wdat_wdt_resume_noirq(struct device *dev)
>  {
> -	struct platform_device *pdev = to_platform_device(dev);
> -	struct wdat_wdt *wdat = platform_get_drvdata(pdev);
> +	struct wdat_wdt *wdat = dev_get_drvdata(dev);
>  	int ret;
>  
>  	if (!watchdog_active(&wdat->wdd))
> -- 
> 2.11.0
>