diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c
index d9965e72d9a833b9886ec2cf9557fcb47459646a..b6a6fea8525de0090482f893efe4f125f7ec4c1a 100644
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -13,38 +13,18 @@
 #define pr_fmt(fmt)     "DMAR: " fmt
 #define dev_fmt(fmt)    pr_fmt(fmt)
 
-#include <linux/init.h>
-#include <linux/bitmap.h>
-#include <linux/debugfs.h>
-#include <linux/export.h>
-#include <linux/slab.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-#include <linux/spinlock.h>
-#include <linux/pci.h>
-#include <linux/dmar.h>
-#include <linux/dma-map-ops.h>
-#include <linux/mempool.h>
-#include <linux/memory.h>
-#include <linux/cpu.h>
-#include <linux/timer.h>
-#include <linux/io.h>
-#include <linux/iova.h>
-#include <linux/iommu.h>
+#include <linux/crash_dump.h>
+#include <linux/dma-direct.h>
 #include <linux/dma-iommu.h>
+#include <linux/dmi.h>
 #include <linux/intel-iommu.h>
 #include <linux/intel-svm.h>
+#include <linux/memory.h>
+#include <linux/pci.h>
+#include <linux/pci-ats.h>
+#include <linux/spinlock.h>
 #include <linux/syscore_ops.h>
 #include <linux/tboot.h>
-#include <linux/dmi.h>
-#include <linux/pci-ats.h>
-#include <linux/memblock.h>
-#include <linux/dma-direct.h>
-#include <linux/crash_dump.h>
-#include <linux/numa.h>
-#include <asm/irq_remapping.h>
-#include <asm/cacheflush.h>
-#include <asm/iommu.h>
 
 #include "../irq_remapping.h"
 #include "../iommu-sva-lib.h"