diff --git a/[refs] b/[refs]
index 061e05e48eaf..351ac9b7a1a6 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: d58befd3a0110c93d70756537b4d01d05a9e6e12
+refs/heads/master: 199d0d501202f077fe647a5c14fe046b17abc46b
diff --git a/trunk/arch/x86/kernel/amd_iommu_init.c b/trunk/arch/x86/kernel/amd_iommu_init.c
index e60f4cd29eb2..505fc04e8969 100644
--- a/trunk/arch/x86/kernel/amd_iommu_init.c
+++ b/trunk/arch/x86/kernel/amd_iommu_init.c
@@ -235,7 +235,7 @@ static void __init iommu_feature_disable(struct amd_iommu *iommu, u8 bit)
 {
 	u32 ctrl;
 
-	ctrl = (u64)readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
+	ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
 	ctrl &= ~(1 << bit);
 	writel(ctrl, iommu->mmio_base + MMIO_CONTROL_OFFSET);
 }