linux-kernel - Re: [PATCH 0/3 v5] dma: add dma_*map*

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Date:	Mon, 31 Mar 2008 18:31:59 -0700
From:	akepner@....com
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Tony Luck <tony.luck@...el.com>,
	Jesse Barnes <jbarnes@...tuousgeek.org>,
	Jes Sorensen <jes@....com>,
	Randy Dunlap <randy.dunlap@...cle.com>,
	Roland Dreier <rdreier@...co.com>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	David Miller <davem@...emloft.net>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Grant Grundler <grundler@...isc-linux.org>,
	Michael Ellerman <michael@...erman.id.au>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3 v5] dma: add dma_*map*_attrs() interfaces

On Thu, Mar 27, 2008 at 08:18:43PM -0700, Andrew Morton wrote:
> On Wed, 19 Mar 2008 18:07:09 -0700 akepner@....com wrote:
> 
> alpha allmodconfig:
> 
> 
> In file included from include/asm/pci.h:7,
>                  from include/linux/pci.h:953,
>                  from include/asm/core_mcpcia.h:9,
>                  from include/asm/io.h:226,
>                  from arch/alpha/kernel/asm-offsets.c:11:
> include/linux/dma-mapping.h: In function 'dma_map_single_attrs':
> include/linux/dma-mapping.h:157: error: implicit declaration of function 'pci_map_single'
> ....
> 
> We're in include hell, I think....

Yeah.

Alpha did some macro substitutions differently than on the 
other platforms I had built and tested with.

The simple fix is to convert the new _attrs()* functions 
in include/linux/dma-mapping.h into macros. 

An updated patch follows. Built for alpha, ia64, x86_64. 
Tested on ia64 and x86_64.

-- 
Arthur

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