Re: [PATCH 1/5] pdev: Fix platform device resource linking

From: Greg Kroah-Hartman
Date: Wed Aug 07 2013 - 01:55:45 EST

On Tue, Aug 06, 2013 at 11:19:14AM +0100, Russell King - ARM Linux wrote:
> On Tue, Aug 06, 2013 at 06:15:27PM +0800, Greg Kroah-Hartman wrote:
> > On Tue, Aug 06, 2013 at 12:45:42PM +0300, Pantelis Antoniou wrote:
> > > What would it take to move all this into driver core?
> >
> > What specifically would you move into there?
> A variable to hold the streaming dma_mask, so that its in struct device
> rather than having to be separate. Yes, we can keep the pointer in there
> too, because that appears to convey meaning in the kernel today - whether
> the device can do DMA or not.
> A NULL dma_mask pointer already means it can't and dma_set_mask() always
> fails. A non-NULL dma_mask pointer means the driver can use
> dma_set_mask() to set an appropriate mask.

Ok, that sounds fine to me, for some reason I thought I said yes to this
a long time ago, did no one ever send me a patch for it?


greg k-h
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