Thomas Zimmermann <tzimmerm...@suse.de> writes:

> Initialize the instance of struct fb_ops with fbdev initializer
> macros for framebuffers in DMA-able address space. This explictily
> sets the read/write, draw and mmap callbacks to the correct default
> implementation. Also select the necessary helpers in Kconfig.
>
> Fbdev drivers sometimes rely on the callbacks being NULL for a
> default implementation to be invoked; hence requireing the I/O
> helpers to be built in any case. Setting all callbacks in all
> drivers explicitly will allow to make the I/O helpers optional.
> This benefits systems that do not use these functions.
>
> Set the callbacks via macros. No functional changes.
>
> Signed-off-by: Thomas Zimmermann <tzimmerm...@suse.de>
> ---

Reviewed-by: Javier Martinez Canillas <javi...@redhat.com>

-- 
Best regards,

Javier Martinez Canillas
Core Platforms
Red Hat

Reply via email to