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bff13b8f2c
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. This explictily sets the read/write, draw and mmap callbacks to the correct default implementation. 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 <tzimmermann@suse.de> Cc: Andy Walls <awalls@md.metrocast.net> Cc: Mauro Carvalho Chehab <mchehab@kernel.org> Cc: linux-media@vger.kernel.org Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> Link: https://patchwork.freedesktop.org/patch/msgid/20231127131655.4020-21-tzimmermann@suse.de |
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