diff --git a/[refs] b/[refs]
index 1cf67792a108..8fdbd9d151de 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: c1cbebeec4a6be1c1fb54fbf2395ade2534b03c4
+refs/heads/master: fb339690a0506d2aca447b5e888fd6ac39ea4fa2
diff --git a/trunk/arch/x86/kernel/amd_iommu_init.c b/trunk/arch/x86/kernel/amd_iommu_init.c
index c970fac6fdc6..2a13e430437d 100644
--- a/trunk/arch/x86/kernel/amd_iommu_init.c
+++ b/trunk/arch/x86/kernel/amd_iommu_init.c
@@ -169,14 +169,11 @@ static void __init iommu_feature_disable(struct amd_iommu *iommu, u8 bit)
 
 void __init iommu_enable(struct amd_iommu *iommu)
 {
-	u32 ctrl;
-
 	printk(KERN_INFO "AMD IOMMU: Enabling IOMMU at ");
 	print_devid(iommu->devid, 0);
 	printk(" cap 0x%hx\n", iommu->cap_ptr);
 
 	iommu_feature_enable(iommu, CONTROL_IOMMU_EN);
-	ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
 }
 
 static u8 * __init iommu_map_mmio_space(u64 address)