iommufd: Reorder include files

Reorder include files to alphabetic order to simplify maintenance, and
separate local headers and global headers with a blank line.

No functional change intended.

Link: https://patch.msgid.link/r/7524b037cc05afe19db3c18f863253e1d1554fa2.1722644866.git.nicolinc@nvidia.comSigned-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/iommu/iommufd/device.c

 // SPDX-License-Identifier: GPL-2.0-only
 /* Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES
  */
+#include <linux/iommu.h>
 #include <linux/iommufd.h>
 #include <linux/slab.h>
-#include <linux/iommu.h>
 #include <uapi/linux/iommufd.h>
-#include "../iommu-priv.h"
 
+#include "../iommu-priv.h"
 #include "io_pagetable.h"
 #include "iommufd_private.h"
 

drivers/iommu/iommufd/fault.c

@@ -3,14 +3,14 @@
  */
 #define pr_fmt(fmt) "iommufd: " fmt
 
+#include <linux/anon_inodes.h>
 #include <linux/file.h>
 #include <linux/fs.h>
+#include <linux/iommufd.h>
 #include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/iommufd.h>
 #include <linux/pci.h>
 #include <linux/poll.h>
-#include <linux/anon_inodes.h>
 #include <uapi/linux/iommufd.h>
 
 #include "../iommu-priv.h"

drivers/iommu/iommufd/io_pagetable.c

@@ -8,17 +8,17 @@
  * The datastructure uses the iopt_pages to optimize the storage of the PFNs
  * between the domains and xarray.
  */
+#include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/iommu.h>
 #include <linux/iommufd.h>
 #include <linux/lockdep.h>
-#include <linux/iommu.h>
 #include <linux/sched/mm.h>
-#include <linux/err.h>
 #include <linux/slab.h>
-#include <linux/errno.h>
 #include <uapi/linux/iommufd.h>
 
-#include "io_pagetable.h"
 #include "double_span.h"
+#include "io_pagetable.h"
 
 struct iopt_pages_list {
 	struct iopt_pages *pages;

drivers/iommu/iommufd/io_pagetable.h

@@ -6,8 +6,8 @@
 #define __IO_PAGETABLE_H
 
 #include <linux/interval_tree.h>
-#include <linux/mutex.h>
 #include <linux/kref.h>
+#include <linux/mutex.h>
 #include <linux/xarray.h>
 
 #include "iommufd_private.h"

drivers/iommu/iommufd/ioas.c

@@ -3,8 +3,8 @@
  * Copyright (c) 2021-2022, NVIDIA CORPORATION & AFFILIATES
  */
 #include <linux/interval_tree.h>
-#include <linux/iommufd.h>
 #include <linux/iommu.h>
+#include <linux/iommufd.h>
 #include <uapi/linux/iommufd.h>
 
 #include "io_pagetable.h"

drivers/iommu/iommufd/iommufd_private.h

@@ -4,13 +4,14 @@
 #ifndef __IOMMUFD_PRIVATE_H
 #define __IOMMUFD_PRIVATE_H
 
-#include <linux/rwsem.h>
-#include <linux/xarray.h>
-#include <linux/refcount.h>
-#include <linux/uaccess.h>
 #include <linux/iommu.h>
 #include <linux/iova_bitmap.h>
+#include <linux/refcount.h>
+#include <linux/rwsem.h>
+#include <linux/uaccess.h>
+#include <linux/xarray.h>
 #include <uapi/linux/iommufd.h>
+
 #include "../iommu-priv.h"
 
 struct iommu_domain;

drivers/iommu/iommufd/iommufd_test.h

@@ -4,8 +4,8 @@
 #ifndef _UAPI_IOMMUFD_TEST_H
 #define _UAPI_IOMMUFD_TEST_H
 
-#include <linux/types.h>
 #include <linux/iommufd.h>
+#include <linux/types.h>
 
 enum {
 	IOMMU_TEST_OP_ADD_RESERVED = 1,

drivers/iommu/iommufd/iova_bitmap.c

@@ -3,10 +3,10 @@
  * Copyright (c) 2022, Oracle and/or its affiliates.
  * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved
  */
+#include <linux/highmem.h>
 #include <linux/iova_bitmap.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
-#include <linux/highmem.h>
 
 #define BITS_PER_PAGE (PAGE_SIZE * BITS_PER_BYTE)
 

drivers/iommu/iommufd/main.c

@@ -8,15 +8,15 @@
  */
 #define pr_fmt(fmt) "iommufd: " fmt
 
+#include <linux/bug.h>
 #include <linux/file.h>
 #include <linux/fs.h>
-#include <linux/module.h>
-#include <linux/slab.h>
+#include <linux/iommufd.h>
 #include <linux/miscdevice.h>
+#include <linux/module.h>
 #include <linux/mutex.h>
-#include <linux/bug.h>
+#include <linux/slab.h>
 #include <uapi/linux/iommufd.h>
-#include <linux/iommufd.h>
 
 #include "io_pagetable.h"
 #include "iommufd_private.h"

drivers/iommu/iommufd/pages.c

@@ -45,16 +45,16 @@
  * last_iova + 1 can overflow. An iopt_pages index will always be much less than
  * ULONG_MAX so last_index + 1 cannot overflow.
  */
+#include <linux/highmem.h>
+#include <linux/iommu.h>
+#include <linux/iommufd.h>
+#include <linux/kthread.h>
 #include <linux/overflow.h>
 #include <linux/slab.h>
-#include <linux/iommu.h>
 #include <linux/sched/mm.h>
-#include <linux/highmem.h>
-#include <linux/kthread.h>
-#include <linux/iommufd.h>
 
-#include "io_pagetable.h"
 #include "double_span.h"
+#include "io_pagetable.h"
 
 #ifndef CONFIG_IOMMUFD_TEST
 #define TEMP_MEMORY_LIMIT 65536

drivers/iommu/iommufd/selftest.c

@@ -3,13 +3,14 @@
  *
  * Kernel side components to support tools/testing/selftests/iommu
  */
-#include <linux/slab.h>
-#include <linux/iommu.h>
-#include <linux/xarray.h>
-#include <linux/file.h>
 #include <linux/anon_inodes.h>
+#include <linux/debugfs.h>
 #include <linux/fault-inject.h>
+#include <linux/file.h>
+#include <linux/iommu.h>
 #include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/xarray.h>
 #include <uapi/linux/iommufd.h>
 
 #include "../iommu-priv.h"

include/linux/iommufd.h

@@ -6,9 +6,9 @@
 #ifndef __LINUX_IOMMUFD_H
 #define __LINUX_IOMMUFD_H
 
-#include <linux/types.h>
-#include <linux/errno.h>
 #include <linux/err.h>
+#include <linux/errno.h>
+#include <linux/types.h>
 
 struct device;
 struct iommufd_device;

include/uapi/linux/iommufd.h

@@ -4,8 +4,8 @@
 #ifndef _UAPI_IOMMUFD_H
 #define _UAPI_IOMMUFD_H
 
-#include <linux/types.h>
 #include <linux/ioctl.h>
+#include <linux/types.h>
 
 #define IOMMUFD_TYPE (';')