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ee4cce0a8f
Apparently drivers need to check all this stuff themselves, which for most things makes sense I guess. And for everything else we luck out, because modern distros stopped supporting any other fbdev drivers than drm ones and I really don't want to argue anymore about who needs to check stuff. Therefore fixing all this just for drm fbdev emulation is good enough. Note that var->active is not set or validated. This is just control flow for fbmem.c and needs to be validated in there as needed. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230404194038.472803-3-daniel.vetter@ffwll.ch
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.