diff --git a/[refs] b/[refs]
index 2df2efa64ff5..ca1fcc05bd4b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 41531c8f5f05aba5ec645d9770557eedbf75b422
+refs/heads/master: 86f319529372953e353dc998bc6a761949614903
diff --git a/trunk/arch/x86/kernel/pci-dma.c b/trunk/arch/x86/kernel/pci-dma.c
index ebf7d454f210..c7c4776ff630 100644
--- a/trunk/arch/x86/kernel/pci-dma.c
+++ b/trunk/arch/x86/kernel/pci-dma.c
@@ -271,6 +271,10 @@ static int __init pci_iommu_init(void)
 {
 	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
 
+#ifdef CONFIG_PCI
+	dma_debug_add_bus(&pci_bus_type);
+#endif
+
 	calgary_iommu_init();
 
 	intel_iommu_init();