Re: [PATCH] MIPS: kernel: Fix for_each_memblock conversion

From: Thomas Bogendoerfer
Date: Tue Nov 17 2020 - 04:14:51 EST


On Tue, Nov 17, 2020 at 10:05:18AM +0200, Mike Rapoport wrote:
> On Mon, Nov 16, 2020 at 11:05:54PM +0300, Serge Semin wrote:
> > On Mon, Nov 16, 2020 at 06:45:15PM +0100, Thomas Bogendoerfer wrote:
> > > The loop over all memblocks works with PFN numbers and not physical
> > > addresses, so we need for_each_mem_pfn_range().
> >
> > Great catch! Don't know how that has been working so far. Anyway
>
> The loop is relevant only for systems with highmem, apparently there are
> not many highmem users out there.

I found the bug on a SGI IP22 probably because PHYS_OFFSET is != 0.

Thomas.

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