On Mon, Nov 27, 2023 at 02:15:55PM +0100, Thomas Zimmermann wrote: > Initialize all instances of struct fb_ops with fbdev initializer > macros for framebuffers in I/O address space. Set the read/write, > draw and mmap callbacks to the correct implementation and avoid > implicit defaults. Also select the necessary helpers in Kconfig. > > Fbdev drivers sometimes rely on the callbacks being NULL for a > default I/O-memory-based implementation to be invoked; hence > requiring 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. > > Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx> > Cc: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx> > Cc: Teddy Wang <teddy.wang@xxxxxxxxxxxxxxxxx> > Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> > Cc: linux-staging@xxxxxxxxxxxxxxx > Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx> Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
