Re: [PATCH 1/6] platform-drivers: msm: add single-wire serial bus interface (SSBI) driver

From: David Brown
Date: Thu Mar 07 2013 - 13:45:26 EST


Sekhar Nori <nsekhar@xxxxxx> writes:

> On 3/7/2013 11:31 AM, Greg Kroah-Hartman wrote:
>> On Wed, Mar 06, 2013 at 09:20:45PM -0800, David Brown wrote:
>>> Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> writes:
>>>
>>>> On Wed, Mar 06, 2013 at 04:29:42PM -0800, David Brown wrote:
>>>>> +menu "Qualcomm MSM SSBI bus support"
>>>>> + depends on ARCH_MSM
>>>>
>>>> Why?
>>>
>>> In the sense that ARCH_MSM are the only devices that ever were, or ever
>>> will be made with this device. It doesn't strictly depend on it, but do
>>> we want to clutter the config for everything else.
>>
>> It's not "clutter". You want me to build this on other platforms, to
>> catch api and other types of build breakages. This is the way for
>> almost all Linux drivers.
>
> Not having a depends on helps build coverage, but I have seen
> objections to showing up irrelevant configurations to users (of x86 for
> example). See one here from Linus for OMAP_OCP2SCP
>
> http://lkml.indiana.edu/hypermail/linux/kernel/1210.0/00785.html
>
> If this case is different, I am not sure why.

This was, in fact, the reason I put the dependency there. I found it a
little annoying being asked about a bunch of OMAP devices when building
the x86 kernel. At least they weren't cancer curing options (default
y).

David

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