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The commit45b58669e5("drm/ssd130x: Allocate buffer in the plane's .atomic_check() callback") moved the buffers allocation to be done in the primary plane's .atomic_check() callback. But it missed that since the driver uses a shadow-buffered plane, the __drm_gem_{reset,duplicate,destroy}_shadow_plane() helper functions must be used in the struct drm_plane_funcs handlers. This was missed because the mentioned commit did not remove the macro DRM_GEM_SHADOW_PLANE_FUNCS, which leads to the custom plane's atomic state management handlers to not be used. Fixes:45b58669e5("drm/ssd130x: Allocate buffer in the plane's .atomic_check() callback") Reported-by: Arnd Bergmann <arnd@arndb.de> Closes: https://lore.kernel.org/dri-devel/20230727122412.2464210-1-arnd@kernel.org Suggested-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patchwork.freedesktop.org/patch/msgid/20230727140453.577445-1-javierm@redhat.com
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.