linux-kernel - Re: [PATCH 1/1] video: fbdev: mb862xx: use DEVICE_ATTR

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Date:   Tue, 1 Jun 2021 18:12:29 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Zhen Lei <thunder.leizhen@...wei.com>
Cc:     Tomi Valkeinen <tomi.valkeinen@...com>,
        "Signed-off-by : Wolfram Sang" <wsa@...-dreams.de>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        linux-fbdev <linux-fbdev@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/1] video: fbdev: mb862xx: use DEVICE_ATTR_RO macro

On Tue, Jun 01, 2021 at 05:08:52PM +0800, Zhen Lei wrote:
> Use DEVICE_ATTR_RO helper instead of plain DEVICE_ATTR, which makes the
> code a bit shorter and easier to read.
> 
> Signed-off-by: Zhen Lei <thunder.leizhen@...wei.com>

Applied to drm-misc-next, thanks.
-Daniel

> ---
>  drivers/video/fbdev/mb862xx/mb862xxfbdrv.c | 6 +++---
>  1 file changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
> index 52755b591c1489f..63721337a37787b 100644
> --- a/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
> +++ b/drivers/video/fbdev/mb862xx/mb862xxfbdrv.c
> @@ -542,8 +542,8 @@ static int mb862xxfb_init_fbinfo(struct fb_info *fbi)
>  /*
>   * show some display controller and cursor registers
>   */
> -static ssize_t mb862xxfb_show_dispregs(struct device *dev,
> -				       struct device_attribute *attr, char *buf)
> +static ssize_t dispregs_show(struct device *dev,
> +			     struct device_attribute *attr, char *buf)
>  {
>  	struct fb_info *fbi = dev_get_drvdata(dev);
>  	struct mb862xxfb_par *par = fbi->par;
> @@ -577,7 +577,7 @@ static ssize_t mb862xxfb_show_dispregs(struct device *dev,
>  	return ptr - buf;
>  }
>  
> -static DEVICE_ATTR(dispregs, 0444, mb862xxfb_show_dispregs, NULL);
> +static DEVICE_ATTR_RO(dispregs);
>  
>  static irqreturn_t mb862xx_intr(int irq, void *dev_id)
>  {
> -- 
> 2.26.0.106.g9fadedd
> 
> 

-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch