Date: Fri, 10 Jun 2011 16:09:38 +1000
From: Stephen Rothwell <sfr@canb.auug.org.au>
To: Greg KH <greg@kroah.com>
Cc: brudley@broadcom.com, henryp@broadcom.com, rvossen@broadcom.com,
        linux-next@vger.kernel.org, linux-kernel@vger.kernel.org,
        Linus <torvalds@linux-foundation.org>
Subject: Re: linux-next: build failure after merge of the final tree
 (staging related)
Message-Id: <20110610160938.cd01c408.sfr@canb.auug.org.au>
In-Reply-To: <20110610160548.529797c7.sfr@canb.auug.org.au>
References: <20110609172745.dfd3a298.sfr@canb.auug.org.au>
	<20110609184127.GA2760@kroah.com>
	<20110609192243.GA3980@kroah.com>
	<20110610160548.529797c7.sfr@canb.auug.org.au>
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Hi Greg,

On Fri, 10 Jun 2011 16:05:48 +1000 Stephen Rothwell <sfr@canb.auug.org.au> =
wrote:
>
> No, I still get these:
>=20
> In file included from drivers/staging/comedi/drivers/addi_apci_035.c:7:0:
> drivers/staging/comedi/drivers/addi-data/addi_common.c: In function 'i_AD=
DI_Attach':
> drivers/staging/comedi/drivers/addi-data/addi_common.c:2765:7: error: imp=
licit declaration of function 'virt_to_bus'
>=20
> virt_to_bus is only defined for 32 bit powerpc (not 64 bit) (and maybe
> not at all on some architectures e.g. sparc).
>=20
> From Documentation/DMA-API-HOWTO.txt:
> "All drivers should be using these interfaces with no exceptions.  It
> is planned to completely remove virt_to_bus() and bus_to_virt() as
> they are entirely deprecated.  Some ports already do not provide these
> as it is impossible to correctly support them."

Drivers that use virt_to_bus should Kconfig depend on VIRT_TO_BUS.

--=20
Cheers,
Stephen Rothwell                    sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/

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