Messages in this thread | | | Date | Mon, 28 Jun 2004 15:39:41 -0700 | From | "David S. Miller" <> | Subject | Re: PATCH] dma_get_required_mask() |
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On 28 Jun 2004 17:40:06 -0500 James Bottomley <James.Bottomley@SteelEye.com> 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.
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