linux-kernel - Re: [PATCH] [media] coda: Fix build due to iram.h rename

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Message-ID: <20130102112908.GI26326@pengutronix.de>
Date:	Wed, 2 Jan 2013 12:29:08 +0100
From:	Sascha Hauer <s.hauer@...gutronix.de>
To:	Mauro Carvalho Chehab <mchehab@...radead.org>
Cc:	Fabio Estevam <fabio.estevam@...escale.com>, kernel@...gutronix.de,
	p.zabel@...gutronix.de, javier.martin@...ta-silicon.com,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [media] coda: Fix build due to iram.h rename

Hi Mauro,

On Thu, Dec 27, 2012 at 08:15:12PM -0200, Mauro Carvalho Chehab wrote:
> Em Mon, 17 Dec 2012 10:37:14 +0100
> Sascha Hauer <s.hauer@...gutronix.de> escreveu:
> 
> > On Wed, Nov 14, 2012 at 11:04:42AM -0200, Fabio Estevam wrote:
> > > commit c045e3f13 (ARM: imx: include iram.h rather than mach/iram.h) changed the
> > > location of iram.h, which causes the following build error when building the coda
> > > driver:
> > > 
> > > drivers/media/platform/coda.c:27:23: error: mach/iram.h: No such file or directory
> > > drivers/media/platform/coda.c: In function 'coda_probe':
> > > drivers/media/platform/coda.c:2000: error: implicit declaration of function 'iram_alloc'
> > > drivers/media/platform/coda.c:2001: warning: assignment makes pointer from integer without a cast
> > > drivers/media/platform/coda.c: In function 'coda_remove':
> > > drivers/media/platform/coda.c:2024: error: implicit declaration of function 'iram_free
> > > 
> > > Since the content of iram.h is not imx specific, move it to include/linux/iram.h
> > > instead.
> > 
> > Generally we need a fix for this, but:
> > 
> > > diff --git a/arch/arm/mach-imx/iram.h b/include/linux/iram.h
> > > similarity index 100%
> > > rename from arch/arm/mach-imx/iram.h
> > > rename to include/linux/iram.h
> > 
> > We shouldn't introduce a file include/linux/iram.h which is purely i.MX
> > specific. The name is far too generic. I would rather suggest
> > include/linux/platform_data/imx-iram.h (Although it's not exactly
> > platform_data, so I'm open for better suggestions).
> > 
> > As a side note this i.MX specific iram stuff (hopefully) is obsolete
> > after the next merge window as Philip already has patches for a generic
> > iram allocator which didn't make it into this merge window.
> 
> Hi Sasha,
> 
> This compilation breakage seems to still be happening.
> 
> Just tested here with arm32 "allmodconfig", on a tree based on Linus one,
> with -next and -media patches applied on it:
> 
> drivers/media//platform/coda.c:27:23: fatal error: mach/iram.h: No such file or directory
> compilation terminated.
> 
> I don't mind how this would be named, but this should be fixed somehow ;)

I will prepare a patch for this next week when I'm back in the office.

Sascha

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