On Thu, 16 Jul 2015, Toshi Kani wrote:
> Note, removing the call to region_is_ram() is also necessary to
> fix bugs in region_is_ram().  walk_system_ram_range() requires
> RAM ranges be page-aligned in the iomem_resource table to work
> properly.  This restriction has allowed multiple ioremaps to RAM
> (setup_data) which are page-unaligned.  Using fixed region_is_ram()
> will cause these callers to start failing.

Which callers? 

Thanks,

        tglx
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