[PATCH] arm64: add screen_info for console support
Will Deacon
will.deacon at arm.com
Tue Aug 20 09:37:33 EDT 2013
Hi Mark,
On Sun, Aug 18, 2013 at 05:22:50PM +0100, Mark Salter wrote:
> The arm64 port doesn't provide a screen_info struct for console support
> which leads to a build failure with some configurations:
>
> drivers/video/console/vgacon.c:820: undefined reference to `screen_info'
>
> This patch adds an empty declaration of screen_info to fix the build
> problem. Some additional runtime code is needed to actually make it
> useful.
>
> Signed-off-by: Mark Salter <msalter at redhat.com>
> ---
> arch/arm64/kernel/setup.c | 4 ++++
> 1 file changed, 4 insertions(+)
>
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
> index add6ea6..eb9f93a 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -64,6 +64,10 @@ static const char *cpu_name;
> static const char *machine_name;
> phys_addr_t __fdt_pointer __initdata;
>
> +#if defined(CONFIG_VGA_CONSOLE) || defined(CONFIG_DUMMY_CONSOLE)
> +struct screen_info screen_info;
> +#endif
You may be able to do something similar to the proposal for PARPORT here and
factor out the lengthy "depends on" clause for VGA_CONSOLE instead of adding
the dummy info.
Unfortunately, I can't make any promise of further bonus points :)
Will
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