linux-kernel - Re: [PATCH] gpu/drm: cleanup coding style a bit

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Message-ID: <20200907181703.GD2352366@phenom.ffwll.local>
Date:   Mon, 7 Sep 2020 20:17:03 +0200
From:   Daniel Vetter <daniel@...ll.ch>
To:     Bernard Zhao <bernard@...o.com>
Cc:     Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        opensource.kernel@...o.com
Subject: Re: [PATCH] gpu/drm: cleanup coding style a bit

On Mon, Sep 07, 2020 at 05:31:29AM -0700, Bernard Zhao wrote:
> Remove first assignment to info which is meaningless.
> Put the width and higth check first.
> This change is to make the code a bit readable.
> 
> Signed-off-by: Bernard Zhao <bernard@...o.com>

Looks reasonable, thanks for your patch. Applied to drm-misc-next for
5.10.
-Daniel

> ---
>  drivers/gpu/drm/drm_framebuffer.c | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_framebuffer.c b/drivers/gpu/drm/drm_framebuffer.c
> index df656366a530..2f5b0c2bb0fe 100644
> --- a/drivers/gpu/drm/drm_framebuffer.c
> +++ b/drivers/gpu/drm/drm_framebuffer.c
> @@ -176,8 +176,7 @@ static int framebuffer_check(struct drm_device *dev,
>  	int i;
>  
>  	/* check if the format is supported at all */
> -	info = __drm_format_info(r->pixel_format);
> -	if (!info) {
> +	if (!__drm_format_info(r->pixel_format)) {
>  		struct drm_format_name_buf format_name;
>  
>  		DRM_DEBUG_KMS("bad framebuffer format %s\n",
> @@ -186,9 +185,6 @@ static int framebuffer_check(struct drm_device *dev,
>  		return -EINVAL;
>  	}
>  
> -	/* now let the driver pick its own format info */
> -	info = drm_get_format_info(dev, r);
> -
>  	if (r->width == 0) {
>  		DRM_DEBUG_KMS("bad framebuffer width %u\n", r->width);
>  		return -EINVAL;
> @@ -199,6 +195,9 @@ static int framebuffer_check(struct drm_device *dev,
>  		return -EINVAL;
>  	}
>  
> +	/* now let the driver pick its own format info */
> +	info = drm_get_format_info(dev, r);
> +
>  	for (i = 0; i < info->num_planes; i++) {
>  		unsigned int width = fb_plane_width(r->width, info, i);
>  		unsigned int height = fb_plane_height(r->height, info, i);
> -- 
> 2.28.0
> 

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