Re: [PATCH v3] sparc: Use shared font data

From: Randy Dunlap
Date: Tue Aug 08 2023 - 15:56:22 EST




On 8/6/23 18:09, linux@xxxxxxxxxxx wrote:
> From: "Dr. David Alan Gilbert" <linux@xxxxxxxxxxx>
>
> sparc has a 'btext' font used for the console which is almost identical
> to the shared font_sun8x16, so use it rather than duplicating the data.
>
> They were actually identical until about a decade ago when
> commit bcfbeecea11c ("drivers: console: font_: Change a glyph from
> "broken bar" to "vertical line"")
>
> which changed the | in the shared font to be a solid
> bar rather than a broken bar. That's the only difference.
>
> This was originally spotted by PMD which noticed that PPC does
> the same thing with the same data, and they also share a bunch
> of functions to manipulate the data.
>
> Tested very lightly with a boot without FS in qemu.
>
> Signed-off-by: Dr. David Alan Gilbert <linux@xxxxxxxxxxx>

This survives lots of build testing with no problems, so

Acked-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>

Thanks.

>
> v3
> Added 'select FONT_SUPPORT' (to stop modconfig causing the font to be
> linked into a module rather than the main kernel)
>
> ---
> arch/sparc/Kconfig | 2 +
> arch/sparc/kernel/btext.c | 365 +-------------------------------------
> 2 files changed, 11 insertions(+), 356 deletions(-)

--
~Randy