[alsa-devel] [PATCH 1/2] spi: Fix mapping from vmalloc-ed buffer to scatter list

Charles Keepax ckeepax at opensource.wolfsonmicro.com
Fri Nov 14 18:41:04 CET 2014


On Fri, Nov 14, 2014 at 05:26:26PM +0000, Mark Brown wrote:
> On Fri, Nov 14, 2014 at 05:11:33PM +0000, Charles Keepax wrote:
> 
> > Ah... ok I think I see the difference here. The MXS architecture
> > has CONFIG_HIGHMEM=n whereas Arndale has CONFIG_HIGHMEM=y. So
> > that means on MXS all the pages will always be in low mem so I
> > think will always be mapped into the kernel logical address space
> > hence no problems. Not sure if it would be worth updating the
> > driver or not, what do you think?
> 
> This is a user configurable option, it's not something that depends on
> the architecture (and in any case it's better not to leave people
> wondering why things are different when they consider consolidation).

Cool, I will do the respin then.

Thanks,
Charles


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