Merge tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging

Pull staging/IIO updates from Greg KH:
 "Here is the big Staging and IIO driver patches for 4.16-rc1.

  There is the normal amount of new IIO drivers added, like all
  releases.

  The networking IPX and the ncpfs filesystem are moved into the staging
  tree, as they are on their way out of the kernel due to lack of use
  anymore.

  The visorbus subsystem finall has started moving out of the staging
  tree to the "real" part of the kernel, and the most and fsl-mc
  codebases are almost ready to move out, that will probably happen for
  4.17-rc1 if all goes well.

  Other than that, there is a bunch of license header cleanups in the
  tree, along with the normal amount of coding style churn that we all
  know and love for this codebase. I also got frustrated at the
  Meltdown/Spectre mess and took it out on the dgnc tty driver, deleting
  huge chunks of it that were never even being used.

  Full details of everything is in the shortlog.

  All of these patches have been in linux-next for a while with no
  reported issues"

* tag 'staging-4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (627 commits)
  staging: rtlwifi: remove redundant initialization of 'cfg_cmd'
  staging: rtl8723bs: remove a couple of redundant initializations
  staging: comedi: reformat lines to 80 chars or less
  staging: lustre: separate a connection destroy from free struct kib_conn
  Staging: rtl8723bs: Use !x instead of NULL comparison
  Staging: rtl8723bs: Remove dead code
  Staging: rtl8723bs: Change names to conform to the kernel code
  staging: ccree: Fix missing blank line after declaration
  staging: rtl8188eu: remove redundant initialization of 'pwrcfgcmd'
  staging: rtlwifi: remove unused RTLHALMAC_ST and RTLPHYDM_ST
  staging: fbtft: remove unused FB_TFT_SSD1325 kconfig
  staging: comedi: dt2811: remove redundant initialization of 'ns'
  staging: wilc1000: fix alignments to match open parenthesis
  staging: wilc1000: removed unnecessary defined enums typedef
  staging: wilc1000: remove unnecessary use of parentheses
  staging: rtl8192u: remove redundant initialization of 'timeout'
  staging: sm750fb: fix CamelCase for dispSet var
  staging: lustre: lnet/selftest: fix compile error on UP build
  staging: rtl8723bs: hal_com_phycfg: Remove unneeded semicolons
  staging: rts5208: Fix "seg_no" calculation in reset_ms_card()
  ...

13 files changed, 65 insertions, 130 deletions

diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
index 372ce9913e6d..bbdc53b686dd 100644
--- a/drivers/staging/android/ashmem.c
+++ b/drivers/staging/android/ashmem.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
 /* mm/ashmem.c
  *
  * Anonymous Shared Memory Subsystem, ashmem
@@ -5,15 +6,6 @@
  * Copyright (C) 2008 Google, Inc.
  *
  * Robert Love <rlove@google.com>
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
  */
 
 #define pr_fmt(fmt) "ashmem: " fmt
@@ -818,7 +810,23 @@ static long compat_ashmem_ioctl(struct file *file, unsigned int cmd,
 	return ashmem_ioctl(file, cmd, arg);
 }
 #endif
+#ifdef CONFIG_PROC_FS
+static void ashmem_show_fdinfo(struct seq_file *m, struct file *file)
+{
+	struct ashmem_area *asma = file->private_data;
+
+	mutex_lock(&ashmem_mutex);
+
+	if (asma->file)
+		seq_printf(m, "inode:\t%ld\n", file_inode(asma->file)->i_ino);
+
+	if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0')
+		seq_printf(m, "name:\t%s\n",
+			   asma->name + ASHMEM_NAME_PREFIX_LEN);
 
+	mutex_unlock(&ashmem_mutex);
+}
+#endif
 static const struct file_operations ashmem_fops = {
 	.owner = THIS_MODULE,
 	.open = ashmem_open,
@@ -830,6 +838,9 @@ static const struct file_operations ashmem_fops = {
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = compat_ashmem_ioctl,
 #endif
+#ifdef CONFIG_PROC_FS
+	.show_fdinfo = ashmem_show_fdinfo,
+#endif
 };
 
 static struct miscdevice ashmem_misc = {
@@ -864,12 +875,18 @@ static int __init ashmem_init(void)
 		goto out_free2;
 	}
 
-	register_shrinker(&ashmem_shrinker);
+	ret = register_shrinker(&ashmem_shrinker);
+	if (ret) {
+		pr_err("failed to register shrinker!\n");
+		goto out_demisc;
+	}
 
 	pr_info("initialized\n");
 
 	return 0;
 
+out_demisc:
+	misc_deregister(&ashmem_misc);
 out_free2:
 	kmem_cache_destroy(ashmem_range_cachep);
 out_free1:
diff --git a/drivers/staging/android/ashmem.h b/drivers/staging/android/ashmem.h
index 5abcfd7aa706..60d7208f110a 100644
--- a/drivers/staging/android/ashmem.h
+++ b/drivers/staging/android/ashmem.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0)
 /*
  * include/linux/ashmem.h
  *
diff --git a/drivers/staging/android/ion/ion-ioctl.c b/drivers/staging/android/ion/ion-ioctl.c
index c78989351f9c..a8d3cc412fb9 100644
--- a/drivers/staging/android/ion/ion-ioctl.c
+++ b/drivers/staging/android/ion/ion-ioctl.c
@@ -1,16 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/kernel.h>
@@ -70,8 +60,10 @@ long ion_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 		return -EFAULT;
 
 	ret = validate_ioctl_arg(cmd, &data);
-	if (WARN_ON_ONCE(ret))
+	if (ret) {
+		pr_warn_once("%s: ioctl validate failed\n", __func__);
 		return ret;
+	}
 
 	if (!(dir & _IOC_WRITE))
 		memset(&data, 0, sizeof(data));
diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
index f480885e346b..57e0d8035b2e 100644
--- a/drivers/staging/android/ion/ion.c
+++ b/drivers/staging/android/ion/ion.c
@@ -1,42 +1,32 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
- *
  * drivers/staging/android/ion/ion.c
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
+#include <linux/anon_inodes.h>
+#include <linux/debugfs.h>
 #include <linux/device.h>
+#include <linux/dma-buf.h>
 #include <linux/err.h>
+#include <linux/export.h>
 #include <linux/file.h>
 #include <linux/freezer.h>
 #include <linux/fs.h>
-#include <linux/anon_inodes.h>
+#include <linux/idr.h>
 #include <linux/kthread.h>
 #include <linux/list.h>
 #include <linux/memblock.h>
 #include <linux/miscdevice.h>
-#include <linux/export.h>
 #include <linux/mm.h>
 #include <linux/mm_types.h>
 #include <linux/rbtree.h>
-#include <linux/slab.h>
+#include <linux/sched/task.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 #include <linux/uaccess.h>
 #include <linux/vmalloc.h>
-#include <linux/debugfs.h>
-#include <linux/dma-buf.h>
-#include <linux/idr.h>
-#include <linux/sched/task.h>
 
 #include "ion.h"
 
@@ -539,6 +529,7 @@ void ion_device_add_heap(struct ion_heap *heap)
 {
 	struct dentry *debug_file;
 	struct ion_device *dev = internal_dev;
+	int ret;
 
 	if (!heap->ops->allocate || !heap->ops->free)
 		pr_err("%s: can not add heap with invalid ops struct.\n",
@@ -550,8 +541,11 @@ void ion_device_add_heap(struct ion_heap *heap)
 	if (heap->flags & ION_HEAP_FLAG_DEFER_FREE)
 		ion_heap_init_deferred_free(heap);
 
-	if ((heap->flags & ION_HEAP_FLAG_DEFER_FREE) || heap->ops->shrink)
-		ion_heap_init_shrinker(heap);
+	if ((heap->flags & ION_HEAP_FLAG_DEFER_FREE) || heap->ops->shrink) {
+		ret = ion_heap_init_shrinker(heap);
+		if (ret)
+			pr_err("%s: Failed to register shrinker\n", __func__);
+	}
 
 	heap->dev = dev;
 	down_write(&dev->lock);
@@ -567,9 +561,9 @@ void ion_device_add_heap(struct ion_heap *heap)
 		char debug_name[64];
 
 		snprintf(debug_name, 64, "%s_shrink", heap->name);
-		debug_file = debugfs_create_file(
-			debug_name, 0644, dev->debug_root, heap,
-			&debug_shrink_fops);
+		debug_file = debugfs_create_file(debug_name,
+						 0644, dev->debug_root, heap,
+						 &debug_shrink_fops);
 		if (!debug_file) {
 			char buf[256], *path;
 
diff --git a/drivers/staging/android/ion/ion.h b/drivers/staging/android/ion/ion.h
index f5f9cd63f8e9..a238f23c9116 100644
--- a/drivers/staging/android/ion/ion.h
+++ b/drivers/staging/android/ion/ion.h
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion.h
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef _ION_H
@@ -189,7 +180,8 @@ struct ion_heap {
 	wait_queue_head_t waitqueue;
 	struct task_struct *task;
 
-	int (*debug_show)(struct ion_heap *heap, struct seq_file *, void *);
+	int (*debug_show)(struct ion_heap *heap, struct seq_file *s,
+			  void *unused);
 };
 
 /**
@@ -238,7 +230,7 @@ int ion_alloc(size_t len,
  * this function will be called to setup a shrinker to shrink the freelists
  * and call the heap's shrink op.
  */
-void ion_heap_init_shrinker(struct ion_heap *heap);
+int ion_heap_init_shrinker(struct ion_heap *heap);
 
 /**
  * ion_heap_init_deferred_free -- initialize deferred free functionality
diff --git a/drivers/staging/android/ion/ion_carveout_heap.c b/drivers/staging/android/ion/ion_carveout_heap.c
index fee7650d6fbb..e129237a0417 100644
--- a/drivers/staging/android/ion/ion_carveout_heap.c
+++ b/drivers/staging/android/ion/ion_carveout_heap.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion_carveout_heap.c
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 #include <linux/spinlock.h>
 #include <linux/dma-mapping.h>
diff --git a/drivers/staging/android/ion/ion_chunk_heap.c b/drivers/staging/android/ion/ion_chunk_heap.c
index 102c09398317..159d72f5bc42 100644
--- a/drivers/staging/android/ion/ion_chunk_heap.c
+++ b/drivers/staging/android/ion/ion_chunk_heap.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion_chunk_heap.c
  *
  * Copyright (C) 2012 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 #include <linux/dma-mapping.h>
 #include <linux/err.h>
diff --git a/drivers/staging/android/ion/ion_cma_heap.c b/drivers/staging/android/ion/ion_cma_heap.c
index 86196ffd2faf..94e06925c712 100644
--- a/drivers/staging/android/ion/ion_cma_heap.c
+++ b/drivers/staging/android/ion/ion_cma_heap.c
@@ -1,18 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion_cma_heap.c
  *
  * Copyright (C) Linaro 2012
  * Author: <benjamin.gaignard@linaro.org> for ST-Ericsson.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/device.h>
diff --git a/drivers/staging/android/ion/ion_heap.c b/drivers/staging/android/ion/ion_heap.c
index 91faa7f035b9..772dad65396e 100644
--- a/drivers/staging/android/ion/ion_heap.c
+++ b/drivers/staging/android/ion/ion_heap.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion_heap.c
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/err.h>
@@ -306,11 +297,12 @@ static unsigned long ion_heap_shrink_scan(struct shrinker *shrinker,
 	return freed;
 }
 
-void ion_heap_init_shrinker(struct ion_heap *heap)
+int ion_heap_init_shrinker(struct ion_heap *heap)
 {
 	heap->shrinker.count_objects = ion_heap_shrink_count;
 	heap->shrinker.scan_objects = ion_heap_shrink_scan;
 	heap->shrinker.seeks = DEFAULT_SEEKS;
 	heap->shrinker.batch = 0;
-	register_shrinker(&heap->shrinker);
+
+	return register_shrinker(&heap->shrinker);
 }
diff --git a/drivers/staging/android/ion/ion_page_pool.c b/drivers/staging/android/ion/ion_page_pool.c
index 817849df9de3..b3017f12835f 100644
--- a/drivers/staging/android/ion/ion_page_pool.c
+++ b/drivers/staging/android/ion/ion_page_pool.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion_mem_pool.c
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <linux/debugfs.h>
diff --git a/drivers/staging/android/ion/ion_system_heap.c b/drivers/staging/android/ion/ion_system_heap.c
index 4dc5d7a589c2..bc19cdd30637 100644
--- a/drivers/staging/android/ion/ion_system_heap.c
+++ b/drivers/staging/android/ion/ion_system_heap.c
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/ion/ion_system_heap.c
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #include <asm/page.h>
@@ -371,7 +362,7 @@ static int ion_system_contig_heap_allocate(struct ion_heap *heap,
 	unsigned long i;
 	int ret;
 
-	page = alloc_pages(low_order_gfp_flags, order);
+	page = alloc_pages(low_order_gfp_flags | __GFP_NOWARN, order);
 	if (!page)
 		return -ENOMEM;
 
diff --git a/drivers/staging/android/uapi/ashmem.h b/drivers/staging/android/uapi/ashmem.h
index 13df42d200b7..5b531af6820e 100644
--- a/drivers/staging/android/uapi/ashmem.h
+++ b/drivers/staging/android/uapi/ashmem.h
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: (GPL-2.0 OR Apache-2.0)
 /*
  * drivers/staging/android/uapi/ashmem.h
  *
diff --git a/drivers/staging/android/uapi/ion.h b/drivers/staging/android/uapi/ion.h
index 9e21451149d0..825d3e95ccd3 100644
--- a/drivers/staging/android/uapi/ion.h
+++ b/drivers/staging/android/uapi/ion.h
@@ -1,17 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
 /*
  * drivers/staging/android/uapi/ion.h
  *
  * Copyright (C) 2011 Google, Inc.
- *
- * This software is licensed under the terms of the GNU General Public
- * License version 2, as published by the Free Software Foundation, and
- * may be copied, distributed, and modified under those terms.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
  */
 
 #ifndef _UAPI_LINUX_ION_H