[PATCH v2 1/9] vgacon: rework Kconfig dependencies

Michael Ellerman mpe at ellerman.id.au
Fri Jul 21 14:59:24 AEST 2023

Arnd Bergmann <arnd at kernel.org> writes:
> From: Arnd Bergmann <arnd at arndb.de>
> The list of dependencies here is phrased as an opt-out, but this is missing
> a lot of architectures that don't actually support VGA consoles, and some
> of the entries are stale:
>  - powerpc used to support VGA consoles in the old arch/ppc codebase, but
>    the merged arch/powerpc never did

Not disputing this, but how did you come to that conclusion? I grepped
around and couldn't convince myself whether it can work on powerpc or
not. ie. currently it's possible to enable CONFIG_VGA_CONSOLE and
powerpc does have a struct screen_info defined which seems like it would
allow vgacon_startup() to complete.

My only concern is that someone could be using it with Qemu?


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