[Intel-gfx] [PATCH 10/10] drm/fbdev-generic: Rename struct fb_info 'fbi' to 'info'

[Sam Ravnborg]

Hi Thomas,

a quick drive-by comment.

On Mon, Jan 23, 2023 at 11:05:59AM +0100, Thomas Zimmermann wrote:
> The generic fbdev emulation names variables of type struct fb_info
> both 'fbi' and 'info'. The latter seems to be more common in fbdev
> code, so name fbi accordingly.
> 
> Also replace the duplicate variable in drm_fbdev_fb_destroy().
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
> ---
>  drivers/gpu/drm/drm_fbdev_generic.c | 49 ++++++++++++++---------------
>  1 file changed, 24 insertions(+), 25 deletions(-)
> 
> diff --git a/drivers/gpu/drm/drm_fbdev_generic.c b/drivers/gpu/drm/drm_fbdev_generic.c
> index 49a0bba86ce7..7633da5c13c3 100644
> --- a/drivers/gpu/drm/drm_fbdev_generic.c
> +++ b/drivers/gpu/drm/drm_fbdev_generic.c
> @@ -46,17 +46,16 @@ static int drm_fbdev_fb_release(struct fb_info *info, int user)
>  static void drm_fbdev_fb_destroy(struct fb_info *info)
>  {
>  	struct drm_fb_helper *fb_helper = info->par;
> -	struct fb_info *fbi = fb_helper->info;
>  	void *shadow = NULL;
>  
>  	if (!fb_helper->dev)
>  		return;
>  
> -	if (fbi) {
> -		if (fbi->fbdefio)
> -			fb_deferred_io_cleanup(fbi);
> +	if (info) {
As info is already used above to find fb_helper, this check is
redundant.

	Sam

> +		if (info->fbdefio)
> +			fb_deferred_io_cleanup(info);
>  		if (drm_fbdev_use_shadow_fb(fb_helper))
> -			shadow = fbi->screen_buffer;
> +			shadow = info->screen_buffer;
>  	}
>  
>  	drm_fb_helper_fini(fb_helper);
> @@ -173,7 +172,7 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
>  	struct drm_device *dev = fb_helper->dev;
>  	struct drm_client_buffer *buffer;
>  	struct drm_framebuffer *fb;
> -	struct fb_info *fbi;
> +	struct fb_info *info;
>  	u32 format;
>  	struct iosys_map map;
>  	int ret;
> @@ -192,35 +191,35 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
>  	fb_helper->fb = buffer->fb;
>  	fb = buffer->fb;
>  
> -	fbi = drm_fb_helper_alloc_info(fb_helper);
> -	if (IS_ERR(fbi))
> -		return PTR_ERR(fbi);
> +	info = drm_fb_helper_alloc_info(fb_helper);
> +	if (IS_ERR(info))
> +		return PTR_ERR(info);
>  
> -	fbi->fbops = &drm_fbdev_fb_ops;
> -	fbi->screen_size = sizes->surface_height * fb->pitches[0];
> -	fbi->fix.smem_len = fbi->screen_size;
> -	fbi->flags = FBINFO_DEFAULT;
> +	info->fbops = &drm_fbdev_fb_ops;
> +	info->screen_size = sizes->surface_height * fb->pitches[0];
> +	info->fix.smem_len = info->screen_size;
> +	info->flags = FBINFO_DEFAULT;
>  
> -	drm_fb_helper_fill_info(fbi, fb_helper, sizes);
> +	drm_fb_helper_fill_info(info, fb_helper, sizes);
>  
>  	if (drm_fbdev_use_shadow_fb(fb_helper)) {
> -		fbi->screen_buffer = vzalloc(fbi->screen_size);
> -		if (!fbi->screen_buffer)
> +		info->screen_buffer = vzalloc(info->screen_size);
> +		if (!info->screen_buffer)
>  			return -ENOMEM;
> -		fbi->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
> +		info->flags |= FBINFO_VIRTFB | FBINFO_READS_FAST;
>  
> -		fbi->fbdefio = &drm_fbdev_defio;
> -		fb_deferred_io_init(fbi);
> +		info->fbdefio = &drm_fbdev_defio;
> +		fb_deferred_io_init(info);
>  	} else {
>  		/* buffer is mapped for HW framebuffer */
>  		ret = drm_client_buffer_vmap(fb_helper->buffer, &map);
>  		if (ret)
>  			return ret;
>  		if (map.is_iomem) {
> -			fbi->screen_base = map.vaddr_iomem;
> +			info->screen_base = map.vaddr_iomem;
>  		} else {
> -			fbi->screen_buffer = map.vaddr;
> -			fbi->flags |= FBINFO_VIRTFB;
> +			info->screen_buffer = map.vaddr;
> +			info->flags |= FBINFO_VIRTFB;
>  		}
>  
>  		/*
> @@ -229,10 +228,10 @@ static int drm_fbdev_fb_probe(struct drm_fb_helper *fb_helper,
>  		 * case.
>  		 */
>  #if IS_ENABLED(CONFIG_DRM_FBDEV_LEAK_PHYS_SMEM)
> -		if (fb_helper->hint_leak_smem_start && fbi->fix.smem_start == 0 &&
> +		if (fb_helper->hint_leak_smem_start && info->fix.smem_start == 0 &&
>  		    !drm_WARN_ON_ONCE(dev, map.is_iomem))
> -			fbi->fix.smem_start =
> -				page_to_phys(virt_to_page(fbi->screen_buffer));
> +			info->fix.smem_start =
> +				page_to_phys(virt_to_page(info->screen_buffer));
>  #endif
>  	}
>  
> -- 
> 2.39.0