DMA mapping (was Re: [PATCH] cciss 2.6; replaces DMA masks with kernel defines)

Lee Revell
2005-06-10T20:39:19Z

On Fri, 2005-06-10 at 12:55 -0400, Jeff Garzik wrote:
> mike.miller@hp.com wrote:
> > This patch removes our homegrown DMA masks and uses the ones defined in
> > the kernel instead.
> > Thanks to Jens Axboe for the code. Please consider this for inclusion.
> >
> > Signed-off-by: Mike Miller <mike.miller@hp.com>
>
> You need to add '#include <linux/dma-mapping.h>'
>

Why doesn't this file define 29, 30, 31 bit DMA masks, required by many
devices? I know of at least 2 soundcards that need a 29 bit DMA mask.

Lee