linux-kernel - Re: [PATCH v3 0/4] fbdev: Make CONFIG_FB

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Message-ID: <CAMuHMdUEXBRW68sPMrVX5B6ebtbbS93umtrB_BZsegD4mym_+A@mail.gmail.com>
Date: Tue, 30 Dec 2025 11:42:34 +0100
From: Geert Uytterhoeven <geert@...ux-m68k.org>
To: Chintan Patel <chintanlike@...il.com>
Cc: linux-fbdev@...r.kernel.org, linux-staging@...ts.linux.dev, 
	linux-omap@...r.kernel.org, linux-kernel@...r.kernel.org, 
	dri-devel@...ts.freedesktop.org, tzimmermann@...e.de, andy@...nel.org, 
	deller@....de, gregkh@...uxfoundation.org
Subject: Re: [PATCH v3 0/4] fbdev: Make CONFIG_FB_DEVICE optional for drivers

Hi Chintan.

On Tue, 30 Dec 2025 at 06:29, Chintan Patel <chintanlike@...il.com> wrote:
> This series makes CONFIG_FB_DEVICE optional for fbdev drivers that use
> it only for sysfs interfaces, addressing Thomas Zimmermann’s TODO to
> remove hard FB_DEVICE dependencies.
>
> The series introduces a small helper, dev_of_fbinfo(), which returns
> NULL when CONFIG_FB_DEVICE=n. This allows sysfs code paths to be skipped
> via runtime checks, avoids #ifdef CONFIG_FB_DEVICE clutter, and keeps
> full compile-time syntax checking.
>
> Signed-off-by: Chintan Patel <chintanlike@...il.com>
> ---
> Changes in v3:
> - Use PTR_IF() to conditionally include overlay_sysfs_group in
>   overlay_sysfs_groups
> - Decouple variable definition and assignment in fbtft_sysfs_init/exit
>
> Changes in v2:
> - Add dev_of_fbinfo() helper (suggested by Geert Uytterhoeven)

by Helge Deller, not me.

> - Replace #ifdef CONFIG_FB_DEVICE blocks with runtime NULL checks
> - Switch to fb_dbg() / fb_info() logging (suggested by Thomas Zimmermann)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@...ux-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