Signed-off-by: Jonathan Neuschäfer <j.neuschae...@gmx.net>
---
 arch/powerpc/mm/pgtable_32.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/powerpc/mm/pgtable_32.c b/arch/powerpc/mm/pgtable_32.c
index d35d9ad3c1cd..d54e1a9c1c99 100644
--- a/arch/powerpc/mm/pgtable_32.c
+++ b/arch/powerpc/mm/pgtable_32.c
@@ -145,9 +145,8 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, 
unsigned long flags,
 #ifndef CONFIG_CRASH_DUMP
        /*
         * Don't allow anybody to remap normal RAM that we're using.
-        * mem_init() sets high_memory so only do the check after that.
         */
-       if (slab_is_available() && (p < virt_to_phys(high_memory)) &&
+       if (page_is_ram(__phys_to_pfn(p)) &&
            !(__allow_ioremap_reserved && memblock_is_region_reserved(p, 
size))) {
                printk("__ioremap(): phys addr 0x%llx is RAM lr %ps\n",
                       (unsigned long long)p, __builtin_return_address(0));
-- 
2.16.1

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