Re: [PATCH] dma-mapping-broken.h: flesh-out DMA API stubs

["John W. Linville" <linville@tuxdriver.com>]

On Fri, Feb 23, 2007 at 08:57:41AM -0500, Kyle McMartin wrote:
> On Fri, Feb 23, 2007 at 07:13:32AM +0100, Heiko Carstens wrote:
> > How about this for telling that an architecture doesn't support DMA?
> > At least we could get rid of dma-mapping-broken.h and don't need to
> > compile some afterwards dead code.
> > 
> > Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
> 
> This like a lot better of an idea than stubbing out things which should never
> be built in the first place...

My only thought was that the intent must have been to allow compilation of a driver
that checks for DMA at runtime (via dma_supported).  But, I guess dma_supported is intended
as a platform-level check?

If the DMA availability is at the arch level then such a driver could
use (albeit ugly) compile flags to cover that situation...?

Well, either way is fine with me.

John
-- 
John W. Linville
linville@tuxdriver.com
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