[PATCH v2 06/10] drm/fb-helper: Separate shadow-buffer flushing and calling dirty callback

[Sam Ravnborg]

On Fri, Nov 20, 2020 at 11:25:41AM +0100, Thomas Zimmermann wrote:
> Flushing the shadow framebuffer and invoking the dirty callback are two
> separate operations, so do them seprately. The flush operation is paired
> with calls to vmap and vunmap. They are not needed for the dirty callback,
> which performs its own invocations if necessary.
> 
> Signed-off-by: Thomas Zimmermann <tzimmermann at suse.de>
Reviewed-by: Sam Ravnborg <sam at ravnborg.org>