[PATCH 1/2] dt: Add empty of_property_match_string() function

[Rob Herring]

On 06/13/2012 02:02 AM, Thierry Reding wrote:
> On Fri, Jun 01, 2012 at 07:59:20AM +0200, Thierry Reding wrote:
>> * Thierry Reding wrote:
>>> * Thierry Reding wrote:
>>>> The latest series for the PWM subsystem is here[0]. However that version
>>>> doesn't contain the latest changes that require this. I haven't pushed those
>>>> changes yet because they cause the build to fail (because of these two
>>>> missing patches).
>>>
>>> I just pushed the latest code to the for-next branch. That's the state that I
>>> was going to submit during the 3.5 merge window.
>>>
>>> Thierry
>>>
>>>> [0]: http://gitorious.org/linux-pwm/linux-pwm
>>
>> Hi Grant,
>>
>> Do you have any comments on this? I really want the PWM subsystem to go into
>> 3.6, and for that to happen we need to find a solution for this. As I stated
>> previously the empty functions are needed to compile the PWM core in !OF
>> configurations.
>>
>> Usually this would be solved by just #ifdef'ing the corresponding code, but
>> with the recent introduction of the config_enabled() and IS_ENABLED() macros
>> there seems to be a move to replace #ifdef usage with those in order to have
>> the corresponding code compile-checked in all configurations and have the
>> compiler throw away the unused code.
>>
>> I believe that this is a good thing, but it will required these empty OF
>> functions to be added. If you don't find this an acceptable solution, please
>> let me know and I'll convert the OF-specific code in the PWM core to use
>> #ifdef instead.
> 
> Grant, Rob,
> 
> any update on this?
> 

I agree with your comments, and every other OF function you are using
has an empty version already, so for both patches:

Acked-by: Rob Herring <rob.herring at calxeda.com>

You can merge these with PWM support since you are dependent on it.

Rob