diff --git a/[refs] b/[refs]
index 89b17e8c254f..52ab30c69509 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: a3ec3acd29e3b372d79b81a534e1f4b10fc140f7
+refs/heads/master: 58631ad1205677c5b33f511fd5aae26eaa0c87c6
diff --git a/trunk/arch/powerpc/sysdev/fsl_msi.c b/trunk/arch/powerpc/sysdev/fsl_msi.c
index 178c99427b1c..ab02db3d02d8 100644
--- a/trunk/arch/powerpc/sysdev/fsl_msi.c
+++ b/trunk/arch/powerpc/sysdev/fsl_msi.c
@@ -333,6 +333,8 @@ static int fsl_of_msi_remove(struct platform_device *ofdev)
 	return 0;
 }
 
+static struct lock_class_key fsl_msi_irq_class;
+
 static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev,
 			       int offset, int irq_index)
 {
@@ -351,7 +353,7 @@ static int fsl_msi_setup_hwirq(struct fsl_msi *msi, struct platform_device *dev,
 		dev_err(&dev->dev, "No memory for MSI cascade data\n");
 		return -ENOMEM;
 	}
-
+	irq_set_lockdep_class(virt_msir, &fsl_msi_irq_class);
 	msi->msi_virqs[irq_index] = virt_msir;
 	cascade_data->index = offset;
 	cascade_data->msi_data = msi;