diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
index 4cb5bff237288a4ee80d80ba53a2efe96f2749f3..9ba0e2a7e01e18fc16206bc5a228f9706636c9e1 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
@@ -48,9 +48,6 @@
 #define dmac_map_area			__glue(_CACHE,_dma_map_area)
 #define dmac_unmap_area 		__glue(_CACHE,_dma_unmap_area)
 
-extern void dmac_map_area(const void *, size_t, int);
-extern void dmac_unmap_area(const void *, size_t, int);
-
 #define TOTAL_SLOTS (VCHIQ_SLOT_ZERO_SLOTS + 2 * 32)
 
 #define VCHIQ_ARM_ADDRESS(x) ((void *)((char *)x + g_virt_to_bus_offset))