8a736ddfc8
On non-x86 architectures, the screen_info variable is generally only used for the VGA console where supported, and in some cases the EFI framebuffer or vga16fb. Now that we have a definite list of which architectures actually use it for what, use consistent #ifdef checks so the global variable is only defined when it is actually used on those architectures. Loongarch and riscv have no support for vgacon or vga16fb, but they support EFI firmware, so only that needs to be checked, and the initialization can be removed because that is handled by EFI. IA64 has both vgacon and EFI, though EFI apparently never uses a framebuffer here. Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Khalid Aziz <khalid@gonehiking.org> Acked-by: Helge Deller <deller@gmx.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20231009211845.3136536-3-arnd@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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.