linux-kernel - Re: [PATCH] omapfb: rename omap2 module to omap2fb.ko

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Date:   Mon, 9 Jul 2018 00:02:16 -0700
From:   Tony Lindgren <tony@...mide.com>
To:     Arnd Bergmann <arnd@...db.de>
Cc:     Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Mauro Carvalho Chehab <mchehab@...pensource.com>,
        linux-omap@...r.kernel.org, linux-fbdev@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] omapfb: rename omap2 module to omap2fb.ko

* Arnd Bergmann <arnd@...db.de> [180706 12:39]:
> In a kernel configuration with both CONFIG_FB_OMAP=m and CONFIG_FB_OMAP2=m,
> Kbuild fails to point out that we have two modules with the same name (omapfb.ko),
> but instead fails with a cryptic error message like:
> 
> ERROR: "omapfb_register_panel" [drivers/video/fbdev/omap/lcd_osk.ko] undefined!
> 
> This can now happen when building a randconfig kernel with CONFIG_ARCH_OMAP1,
> as the omap1 fbdev driver depends on that, whiel the omap2 fbdev driver can
> now be built anywhere with CONFIG_COMPILE_TEST.
> 
> The solution is to rename one of the two modules, so for consistency with
> the directory naming I decided to rename the omap2 version to omap2fb.ko.

Sounds good to me:

Acked-by: Tony Lindgren <tony@...mide.com>