[PATCH] drm/amd: Do not make DRM_AMD_ACP default to y

Geert Uytterhoeven geert at linux-m68k.org
Wed Feb 24 14:58:23 UTC 2016

Hi Alex,

On Wed, Feb 24, 2016 at 3:48 PM, Deucher, Alexander
<Alexander.Deucher at amd.com> wrote:
>> -----Original Message-----
>> From: Geert Uytterhoeven [mailto:geert+renesas at glider.be]
>> Sent: Wednesday, February 24, 2016 3:14 AM
>> To: David Airlie; Deucher, Alexander; Bayyavarapu, Maruthi
>> Cc: dri-devel at lists.freedesktop.org; linux-kernel at vger.kernel.org; Geert
>> Uytterhoeven
>> Subject: [PATCH] drm/amd: Do not make DRM_AMD_ACP default to y
>> By default, not only this driver is enabled on all platforms, but also
>> generic PM Domains and Multi-Function Devices.
>> Drop the "default y" to fix this.
> I guess I don't really care per se, but why is this an issue?

Because it causes kernel bloat on all platforms that are not AMD SoCs.
I noticed the option and the selected options were suddenly enabled when
running "make ARCH=sh se7724_defconfig".

As a general use, never use "default y", unless the system fails completely
in the absence of the module. Even then, there should be some dependencies



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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