x86: dma-ops on highmem fix

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/kernel/pci-nommu_64.c b/arch/x86/kernel/pci-nommu_64.c
index ab08e1832228..6e330769d017 100644
--- a/arch/x86/kernel/pci-nommu_64.c
+++ b/arch/x86/kernel/pci-nommu_64.c
@@ -26,10 +26,10 @@ check_addr(char *name, struct device *hwdev, dma_addr_t bus, size_t size)
 }
 
 static dma_addr_t
-nommu_map_single(struct device *hwdev, void *ptr, size_t size,
+nommu_map_single(struct device *hwdev, phys_addr_t paddr, size_t size,
                int direction)
 {
-        dma_addr_t bus = virt_to_bus(ptr);
+        dma_addr_t bus = paddr;
         if (!check_addr("map_single", hwdev, bus, size))
                                 return bad_dma_address;
         return bus;