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9d8b5376cc
Make the offb (Open Firmware frame buffer) driver tristate, i.e., so that it can be built as a loadable module. However, it still depends on the setting of DRM_OFDRM so that both of these drivers cannot be builtin at the same time nor can one be builtin and the other one a loadable module. Build-tested successfully with all combination of DRM_OFDRM and FB_OF. This fixes a build issue that Michal reported when FB_OF=y and DRM_OFDRM=m: powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x58): undefined reference to `cfb_fillrect' powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x60): undefined reference to `cfb_copyarea' powerpc64-linux-ld: drivers/video/fbdev/offb.o:(.data.rel.ro+0x68): undefined reference to `cfb_imageblit' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Michal Suchánek <msuchanek@suse.de> Cc: linuxppc-dev@lists.ozlabs.org Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Helge Deller <deller@gmx.de> Cc: linux-fbdev@vger.kernel.org Cc: dri-devel@lists.freedesktop.org Acked-by: Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by: Helge Deller <deller@gmx.de>
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.