linux-kernel - Re: [PATCH] OMAPDSS: fix omapfb build error due missing feat functions declaration

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Date:	Tue, 22 Dec 2015 09:02:02 -0300
From:	Javier Martinez Canillas <javier@....samsung.com>
To:	Tomi Valkeinen <tomi.valkeinen@...com>,
	linux-kernel@...r.kernel.org
Cc:	Tony Lindgren <tony@...mide.com>, linux-fbdev@...r.kernel.org,
	Dave Airlie <airlied@...il.com>,
	Jean-Christophe Plagniol-Villard <plagnioj@...osoft.com>,
	Rob Clark <robdclark@...il.com>, linux-omap@...r.kernel.org
Subject: Re: [PATCH] OMAPDSS: fix omapfb build error due missing feat
 functions declaration

Hello Tomi,

On 12/22/2015 04:50 AM, Tomi Valkeinen wrote:
> Hi Javier,
> 
> On 21/12/15 20:26, Javier Martinez Canillas wrote:
>> The omapfb is failing to build in -next due missing declarations for
>> dss_feat_get_supported_displays() and dss_feat_get_supported_outputs():
>>
>>  CC [M]  drivers/video/fbdev/omap2//omapfb/dss/dss.o
>> drivers/video/fbdev/omap2//omapfb/dss/dss.c: In function 'dss_save_context':
>> drivers/video/fbdev/omap2//omapfb/dss/dss.c:144:2: error: implicit declaration of function 'dss_feat_get_supported_displays' [-Werror=implicit-function-declaration]
>>
>> Add the declaration for these functions in the dss_features.h header
>> file to fix this compile error.
>>
>> Also, remove the functions export since are not used outside the driver.
> 
> Thanks!
>

You are welcome.
 
> Yep, I messed that up. I thought I had tested it, but apparently I only
> tested the final for-next only for omapdrm, which does compile and work.
>

Yes, that's what I thought.
 
> omapdss.h is the the only file still shared between omapdrm and omapfb
> after the copy-omapdss-series (I'll work on omapdss.h later), and of
> course there was a change to omapdss.h which broke the build.
> 
> So I rebased the copy-omapdss-series on top of the rest of the omapdss
> patches, and updated the "omapfb: copy omapdss & displays for omapfb" to
> make a fresh copy of omapdss for omapfb. I think it's better to update
> the series, rather than applying fixes for already confusing series.
>

I completely agree, maintaining bisectability is important. As I mentioned
in my last email, I just posted in case you couldn't rework your branches
for whatever reason.
 
> I've pushed new version to my for-next branch.
>

Great, thanks!

>  Tomi
> 

Best regards,
-- 
Javier Martinez Canillas
Open Source Group
Samsung Research America
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