[PATCH 4/5] drm: ssd130x: Reduce temporary buffer sizes

Geert Uytterhoeven geert at linux-m68k.org
Tue Mar 15 12:57:25 UTC 2022


Hi Javier,

On Tue, Mar 15, 2022 at 1:32 PM Javier Martinez Canillas
<javierm at redhat.com> wrote:
> On 3/15/22 12:07, Geert Uytterhoeven wrote:
> > ssd130x_clear_screen() allocates a temporary buffer sized to hold one
> > byte per pixel, while it only needs to hold one bit per pixel.
> >
> > ssd130x_fb_blit_rect() allocates a temporary buffer sized to hold one
> > byte per pixel for the whole frame buffer, while it only needs to hold
> > one bit per pixel for the part that is to be updated.
> > Pass dst_pitch to drm_fb_xrgb8888_to_mono_reversed(), as we have already
>
> Just drm_fb_xrgb8888_to_mono() since you already fixed the name in patch 1/5.

Bummer, that happens when reshuffling patches :-(
Fixed for v2.

> > calculated it anyway.
> >
> > Fixes: a61732e808672cfa ("drm: Add driver for Solomon SSD130x OLED displays")
> > Signed-off-by: Geert Uytterhoeven <geert at linux-m68k.org>
> > ---
>
> Indeed. I haven't noticed that got the calculation wrong until you pointed out.
>
> Acked-by: Javier Martinez Canillas <javierm at redhat.com>

Thanks!

Gr{oetje,eeting}s,

                        Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds


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