Re: PATCH] dma_get_required_mask()

[David S. Miller]

On 28 Jun 2004 17:40:06 -0500
James Bottomley <James.Bottomley@xxxxxxxxxxxx> wrote:

> On Mon, 2004-06-28 at 17:28, David S. Miller wrote:
> > Maybe you should tweak the default implementation such that
> > something reasonable happens on 64-bit platforms that
> > define dma_addr_t as a 32-bit quantity. :-)
> 
> Actually, the default implementation should work on these platforms
> too.  Since it's impossible to set a mask over 32 bits, then the best
> dma_get_required_mask() will do is return a full spread of 32 bits,
> since the memory mask is anded with the current dma mask.

Perfect, I didn't notice that.
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