Re: [PATCH] pci: print out DMA mask info

[Matthew Wilcox]

On Fri, Oct 10, 2008 at 09:19:08AM -0700, Yinghai Lu wrote:
> anyway looking at dma_mask print out is interesting..., some uses 39,
> and some use 44bits...

Yes, that reflects the limitations of the device.  You can see many of
the common ones in include/linux/dma-mapping.h.

By the way, commit 8f286c33f1e838d631f4a3260b33efce4bc5973c is a really
bad idea.  It is very helpful to see which bitmasks are used by real
devices, and which ones aren't.  It should be reverted, IMO.

-- 
Matthew Wilcox				Intel Open Source Technology Centre
"Bill, look, we understand that you're interested in selling us this
operating system, but compare it to ours.  We can't possibly take such
a retrograde step."
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