powerpc/mm: Make pte_pgprot return all pte bits

[Michael Ellerman]

On Thu, 2018-10-18 at 13:33:16 UTC, Michael Ellerman wrote:
> From: "Aneesh Kumar K.V" <aneesh.kumar at linux.ibm.com>
> 
> Other archs do the same and instead of adding required pte bits (which
> got masked out) in __ioremap_at(), make sure we filter only pfn bits
> out.
> 
> Fixes: 26973fa5ac0e ("powerpc/mm: use pte helpers in generic code")
> Reviewed-by: Christophe Leroy <christophe.leroy at c-s.fr>
> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar at linux.ibm.com>
> Signed-off-by: Michael Ellerman <mpe at ellerman.id.au>

Applied to powerpc next.

https://git.kernel.org/powerpc/c/b9fb4480a3af85552d88561a2fea9c

cheers