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-rw-r--r--arch/microblaze/mm/pgtable.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index 4c0599239915..7f525962cdfa 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -127,7 +127,7 @@ void __iomem *ioremap(phys_addr_t addr, unsigned long size)
}
EXPORT_SYMBOL(ioremap);
-void iounmap(void __iomem *addr)
+void iounmap(volatile void __iomem *addr)
{
if ((__force void *)addr > high_memory &&
(unsigned long) addr < ioremap_bot)