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SubjectRe: [PATCH 00 of 10] x86: unify asm/pgtable.h

* Andi Kleen <ak@suse.de> wrote:

> >> this code is plain buggy but fixing it triggered driver bugs in the
> >> past so we've been procrastinating it forever ...
> >>
> >
> > What kind of driver bugs? Do drivers manage to get into the other
> > branch
>
> That was just the return value issue that caused drivers to fail
> through ioremap() iirc. It would error out for unmapped holes and then
> fail ioremap I don't think it's related.

in -mm we had a patch where the error behavior was consolidated but it
broke on some boxes.

Ingo


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