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-rw-r--r--arch/arm/include/asm/memory.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index ae472bc376d3..85763db87449 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -188,6 +188,7 @@ static inline void *phys_to_virt(unsigned long x)
#ifndef __virt_to_bus
#define __virt_to_bus __virt_to_phys
#define __bus_to_virt __phys_to_virt
+#define __pfn_to_bus(x) ((x) << PAGE_SHIFT)
#endif
static inline __deprecated unsigned long virt_to_bus(void *x)