diff --git a/[refs] b/[refs]
index fd340d624ae0..6efe231ff373 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1d32251e846ccbcf9d2da041dffd1199f94b2a3b
+refs/heads/master: a08636690d06b2e36cfb4c2b3ee133a81c47e1e0
diff --git a/trunk/arch/x86/kernel/pci-swiotlb_64.c b/trunk/arch/x86/kernel/pci-swiotlb_64.c
index 93a8371f2c22..242c3440687f 100644
--- a/trunk/arch/x86/kernel/pci-swiotlb_64.c
+++ b/trunk/arch/x86/kernel/pci-swiotlb_64.c
@@ -33,6 +33,11 @@ phys_addr_t swiotlb_bus_to_phys(dma_addr_t baddr)
 	return baddr;
 }
 
+int __weak swiotlb_arch_range_needs_mapping(void *ptr, size_t size)
+{
+	return 0;
+}
+
 static dma_addr_t
 swiotlb_map_single_phys(struct device *hwdev, phys_addr_t paddr, size_t size,
 			int direction)