On Wed, 23 May 2007, James Bottomley wrote:
> I'll defer to Mark on this one. However, please remember that you
> can't just blindly remove GFP_DMA ... there are some cards which
> require it.
>
> Aacraid is one example ... it has a set of cards that can only DMA
> to 31 bits. For them, the GFP_DMA is necessary: The allocation in
> question is a scatterlist, which must be within the device DMA mask.
a question i asked a while back, and still haven't seen an answer for
-- given this in include/linux/gfp.h:
#define GFP_DMA __GFP_DMA
is there a qualitative difference between these two macros? is there
*supposed* to be? if there isn't, one would think that just one
variation would be sufficient.
rday
--
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA
http://fsdev.net/wiki/index.php?title=Main_Page
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