From 6c0cc62715bfd0b26f7d1a79e6e8143085950ca7 Mon Sep 17 00:00:00 2001
From: Scott Wood <scottwood@freescale.com>
Date: Fri, 17 Apr 2015 16:17:14 -0500
Subject: [PATCH] powerpc/mm: Use PFN_PHYS() in devmem_is_allowed()

This function can run on systems where physical addresses don't
fit in unsigned long, so make sure to use the macro that contains the
proper cast.

Signed-off-by: Scott Wood <scottwood@freescale.com>
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