linux-kernel - Re: [PATCH v2 1/3] watchdog: mpc8xxx: use dev_xxxx() instead of pr

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Date:   Fri, 14 Sep 2018 10:25:01 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Christophe Leroy <christophe.leroy@....fr>
Cc:     Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Radu Rendec <radu.rendec@...il.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
        linux-watchdog@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH v2 1/3] watchdog: mpc8xxx: use dev_xxxx() instead of
 pr_xxxx()

On Fri, Sep 14, 2018 at 01:31:59PM +0000, Christophe Leroy wrote:
> mpc8xxx watchdog driver is a platform device drivers, it is
> therefore possible to use dev_xxx() messaging rather than pr_xxx()
> 
> Signed-off-by: Christophe Leroy <christophe.leroy@....fr>

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

> ---
>  drivers/watchdog/mpc8xxx_wdt.c | 24 ++++++++++++------------
>  1 file changed, 12 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/watchdog/mpc8xxx_wdt.c b/drivers/watchdog/mpc8xxx_wdt.c
> index aca2d6323f8a..1dcf5f10cdd9 100644
> --- a/drivers/watchdog/mpc8xxx_wdt.c
> +++ b/drivers/watchdog/mpc8xxx_wdt.c
> @@ -17,8 +17,6 @@
>   * option) any later version.
>   */
>  
> -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
> -
>  #include <linux/fs.h>
>  #include <linux/init.h>
>  #include <linux/kernel.h>
> @@ -137,26 +135,27 @@ static int mpc8xxx_wdt_probe(struct platform_device *ofdev)
>  	struct mpc8xxx_wdt_ddata *ddata;
>  	u32 freq = fsl_get_sys_freq();
>  	bool enabled;
> +	struct device *dev = &ofdev->dev;
>  
> -	wdt_type = of_device_get_match_data(&ofdev->dev);
> +	wdt_type = of_device_get_match_data(dev);
>  	if (!wdt_type)
>  		return -EINVAL;
>  
>  	if (!freq || freq == -1)
>  		return -EINVAL;
>  
> -	ddata = devm_kzalloc(&ofdev->dev, sizeof(*ddata), GFP_KERNEL);
> +	ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL);
>  	if (!ddata)
>  		return -ENOMEM;
>  
>  	res = platform_get_resource(ofdev, IORESOURCE_MEM, 0);
> -	ddata->base = devm_ioremap_resource(&ofdev->dev, res);
> +	ddata->base = devm_ioremap_resource(dev, res);
>  	if (IS_ERR(ddata->base))
>  		return PTR_ERR(ddata->base);
>  
>  	enabled = in_be32(&ddata->base->swcrr) & SWCRR_SWEN;
>  	if (!enabled && wdt_type->hw_enabled) {
> -		pr_info("could not be enabled in software\n");
> +		dev_info(dev, "could not be enabled in software\n");
>  		return -ENODEV;
>  	}
>  
> @@ -166,7 +165,7 @@ static int mpc8xxx_wdt_probe(struct platform_device *ofdev)
>  	ddata->wdd.ops = &mpc8xxx_wdt_ops,
>  
>  	ddata->wdd.timeout = WATCHDOG_TIMEOUT;
> -	watchdog_init_timeout(&ddata->wdd, timeout, &ofdev->dev);
> +	watchdog_init_timeout(&ddata->wdd, timeout, dev);
>  
>  	watchdog_set_nowayout(&ddata->wdd, nowayout);
>  
> @@ -189,12 +188,13 @@ static int mpc8xxx_wdt_probe(struct platform_device *ofdev)
>  
>  	ret = watchdog_register_device(&ddata->wdd);
>  	if (ret) {
> -		pr_err("cannot register watchdog device (err=%d)\n", ret);
> +		dev_err(dev, "cannot register watchdog device (err=%d)\n", ret);
>  		return ret;
>  	}
>  
> -	pr_info("WDT driver for MPC8xxx initialized. mode:%s timeout=%d sec\n",
> -		reset ? "reset" : "interrupt", ddata->wdd.timeout);
> +	dev_info(dev,
> +		 "WDT driver for MPC8xxx initialized. mode:%s timeout=%d sec\n",
> +		 reset ? "reset" : "interrupt", ddata->wdd.timeout);
>  
>  	platform_set_drvdata(ofdev, ddata);
>  	return 0;
> @@ -204,8 +204,8 @@ static int mpc8xxx_wdt_remove(struct platform_device *ofdev)
>  {
>  	struct mpc8xxx_wdt_ddata *ddata = platform_get_drvdata(ofdev);
>  
> -	pr_crit("Watchdog removed, expect the %s soon!\n",
> -		reset ? "reset" : "machine check exception");
> +	dev_crit(&ofdev->dev, "Watchdog removed, expect the %s soon!\n",
> +		 reset ? "reset" : "machine check exception");
>  	watchdog_unregister_device(&ddata->wdd);
>  
>  	return 0;
> -- 
> 2.13.3
>