Re: [Intel-gfx] [PATCH 1/6] drm: Renaming DP training vswing/pre-emph defines

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On Tue, Aug 5, 2014 at 1:33 PM, Jindal, Sonika <sonika.jindal@xxxxxxxxx> wrote:
>
>
> On 8/5/2014 4:45 PM, Daniel Vetter wrote:
>>
>> On Tue, Aug 05, 2014 at 04:38:17PM +0530, sonika.jindal@xxxxxxxxx wrote:
>>>
>>> From: Sonika Jindal <sonika.jindal@xxxxxxxxx>
>>>
>>> Renaming defines to have levels instead of nominal values.
>>>
>>> Signed-off-by: Sonika Jindal <sonika.jindal@xxxxxxxxx>
>>
>>
>> You can't split up patches like this since this will break compilation.
>> For larger stuff (and imo this is right above the cutoff) you first need
>> to add the new functions/defines, then convert everyone over. And only
>> when all the drivers are converted can we apply the patch to remove the
>> old functions/defines.
>> -Daniel
>>
> Got your concern. So, I will repost the first patch keeping both the defines
> and an additional last patch for removing the extra defines.

Yeah. Btw for the actual replacement I highly recommend to do it with
a semantic patch and cocci. There's unfortunately not a hole lot of
good documentation around, but we recently started and it helps a lot
with regenerating patches (e.g. for newly merged drm drivers) and
avoiding mistakes for manual conversions. If we do a cocci patch we
put it into the commit message, grep for @@.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
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