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

From: Geert Uytterhoeven
Date: Wed Feb 24 2016 - 09:58:30 EST


Hi Alex,

On Wed, Feb 24, 2016 at 3:48 PM, Deucher, Alexander
<Alexander.Deucher@xxxxxxx> wrote:
>> -----Original Message-----
>> From: Geert Uytterhoeven [mailto:geert+renesas@xxxxxxxxx]
>> Sent: Wednesday, February 24, 2016 3:14 AM
>> To: David Airlie; Deucher, Alexander; Bayyavarapu, Maruthi
>> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; 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
listed.

Gr{oetje,eeting}s,

Geert

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

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