[gentoo-commits] proj/linux-patches:4.9 commit in: /

[Mike Pagano]

commit:     28c7eceb0c1de020e71f9f62252291c7753fa792
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Fri Feb 15 12:45:43 2019 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Fri Feb 15 12:45:43 2019 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=28c7eceb

proj/linux-patches: Linux patch 4.9.157 and 4.9.158

Signed-off-by: Mike Pagano <mpagano <AT> gentoo.org>

 0000_README              |   8 +
 1156_linux-4.9.157.patch | 889 +++++++++++++++++++++++++++++++++++++++++++++++
 1157_linux-4.9.158.patch |  34 ++
 3 files changed, 931 insertions(+)

diff --git a/0000_README b/0000_README
index dc5a410..0d0c627 100644
--- a/0000_README
+++ b/0000_README
@@ -667,6 +667,14 @@ Patch:  1155_linux-4.9.156.patch
 From:   http://www.k5rnel.org
 Desc:   Linux 4.9.156
 
+Patch:  1156_linux-4.9.157.patch
+From:   http://www.k5rnel.org
+Desc:   Linux 4.9.157
+
+Patch:  1157_linux-4.9.158.patch
+From:   http://www.k5rnel.org
+Desc:   Linux 4.9.158
+
 Patch:  1500_XATTR_USER_PREFIX.patch
 From:   https://bugs.gentoo.org/show_bug.cgi?id=470644
 Desc:   Support for namespace user.pax.* on tmpfs.

diff --git a/1156_linux-4.9.157.patch b/1156_linux-4.9.157.patch
new file mode 100644
index 0000000..92b7e3e
--- /dev/null
+++ b/1156_linux-4.9.157.patch
@@ -0,0 +1,889 @@
+diff --git a/Makefile b/Makefile
+index 956923115f7e..4eb7a17e18f1 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 156
++SUBLEVEL = 157
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+ 
+diff --git a/arch/arm/mach-iop32x/n2100.c b/arch/arm/mach-iop32x/n2100.c
+index c1cd80ecc219..a904244264ce 100644
+--- a/arch/arm/mach-iop32x/n2100.c
++++ b/arch/arm/mach-iop32x/n2100.c
+@@ -75,8 +75,7 @@ void __init n2100_map_io(void)
+ /*
+  * N2100 PCI.
+  */
+-static int __init
+-n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
++static int n2100_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+ {
+ 	int irq;
+ 
+diff --git a/arch/arm/mach-tango/pm.c b/arch/arm/mach-tango/pm.c
+index b05c6d6f99d0..08d813234b2d 100644
+--- a/arch/arm/mach-tango/pm.c
++++ b/arch/arm/mach-tango/pm.c
+@@ -2,6 +2,7 @@
+ #include <linux/suspend.h>
+ #include <asm/suspend.h>
+ #include "smc.h"
++#include "pm.h"
+ 
+ static int tango_pm_powerdown(unsigned long arg)
+ {
+@@ -23,10 +24,7 @@ static const struct platform_suspend_ops tango_pm_ops = {
+ 	.valid = suspend_valid_only_mem,
+ };
+ 
+-static int __init tango_pm_init(void)
++void __init tango_pm_init(void)
+ {
+ 	suspend_set_ops(&tango_pm_ops);
+-	return 0;
+ }
+-
+-late_initcall(tango_pm_init);
+diff --git a/arch/arm/mach-tango/pm.h b/arch/arm/mach-tango/pm.h
+new file mode 100644
+index 000000000000..35ea705a0ee2
+--- /dev/null
++++ b/arch/arm/mach-tango/pm.h
+@@ -0,0 +1,7 @@
++/* SPDX-License-Identifier: GPL-2.0 */
++
++#ifdef CONFIG_SUSPEND
++void __init tango_pm_init(void);
++#else
++#define tango_pm_init NULL
++#endif
+diff --git a/arch/arm/mach-tango/setup.c b/arch/arm/mach-tango/setup.c
+index f14b6c7d255b..2b48e1098ea3 100644
+--- a/arch/arm/mach-tango/setup.c
++++ b/arch/arm/mach-tango/setup.c
+@@ -1,6 +1,7 @@
+ #include <asm/mach/arch.h>
+ #include <asm/hardware/cache-l2x0.h>
+ #include "smc.h"
++#include "pm.h"
+ 
+ static void tango_l2c_write(unsigned long val, unsigned int reg)
+ {
+@@ -14,4 +15,5 @@ DT_MACHINE_START(TANGO_DT, "Sigma Tango DT")
+ 	.dt_compat	= tango_dt_compat,
+ 	.l2c_aux_mask	= ~0,
+ 	.l2c_write_sec	= tango_l2c_write,
++	.init_late	= tango_pm_init,
+ MACHINE_END
+diff --git a/arch/mips/kernel/mips-cm.c b/arch/mips/kernel/mips-cm.c
+index 659e6d3ae335..60177a612cb1 100644
+--- a/arch/mips/kernel/mips-cm.c
++++ b/arch/mips/kernel/mips-cm.c
+@@ -424,5 +424,5 @@ void mips_cm_error_report(void)
+ 	}
+ 
+ 	/* reprime cause register */
+-	write_gcr_error_cause(0);
++	write_gcr_error_cause(cm_error);
+ }
+diff --git a/arch/mips/pci/pci-octeon.c b/arch/mips/pci/pci-octeon.c
+index 308d051fc45c..7c512834a8f1 100644
+--- a/arch/mips/pci/pci-octeon.c
++++ b/arch/mips/pci/pci-octeon.c
+@@ -573,6 +573,11 @@ static int __init octeon_pci_setup(void)
+ 	if (octeon_has_feature(OCTEON_FEATURE_PCIE))
+ 		return 0;
+ 
++	if (!octeon_is_pci_host()) {
++		pr_notice("Not in host mode, PCI Controller not initialized\n");
++		return 0;
++	}
++
+ 	/* Point pcibios_map_irq() to the PCI version of it */
+ 	octeon_pcibios_map_irq = octeon_pci_pcibios_map_irq;
+ 
+@@ -584,11 +589,6 @@ static int __init octeon_pci_setup(void)
+ 	else
+ 		octeon_dma_bar_type = OCTEON_DMA_BAR_TYPE_BIG;
+ 
+-	if (!octeon_is_pci_host()) {
+-		pr_notice("Not in host mode, PCI Controller not initialized\n");
+-		return 0;
+-	}
+-
+ 	/* PCI I/O and PCI MEM values */
+ 	set_io_port_base(OCTEON_PCI_IOSPACE_BASE);
+ 	ioport_resource.start = 0;
+diff --git a/arch/mips/vdso/Makefile b/arch/mips/vdso/Makefile
+index c3dc12a8b7d9..0b845cc7fbdc 100644
+--- a/arch/mips/vdso/Makefile
++++ b/arch/mips/vdso/Makefile
+@@ -116,7 +116,7 @@ $(obj)/%-o32.o: $(src)/%.c FORCE
+ 	$(call cmd,force_checksrc)
+ 	$(call if_changed_rule,cc_o_c)
+ 
+-$(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := -mabi=32
++$(obj)/vdso-o32.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) -mabi=32
+ $(obj)/vdso-o32.lds: $(src)/vdso.lds.S FORCE
+ 	$(call if_changed_dep,cpp_lds_S)
+ 
+@@ -156,7 +156,7 @@ $(obj)/%-n32.o: $(src)/%.c FORCE
+ 	$(call cmd,force_checksrc)
+ 	$(call if_changed_rule,cc_o_c)
+ 
+-$(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := -mabi=n32
++$(obj)/vdso-n32.lds: KBUILD_CPPFLAGS := $(ccflags-vdso) -mabi=n32
+ $(obj)/vdso-n32.lds: $(src)/vdso.lds.S FORCE
+ 	$(call if_changed_dep,cpp_lds_S)
+ 
+diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
+index e14366de0e6e..97387cfbbeb5 100644
+--- a/drivers/gpu/drm/drm_modes.c
++++ b/drivers/gpu/drm/drm_modes.c
+@@ -753,7 +753,7 @@ int drm_mode_hsync(const struct drm_display_mode *mode)
+ 	if (mode->hsync)
+ 		return mode->hsync;
+ 
+-	if (mode->htotal < 0)
++	if (mode->htotal <= 0)
+ 		return 0;
+ 
+ 	calc_val = (mode->clock * 1000) / mode->htotal; /* hsync in Hz */
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+index 29abd28c19b3..4b556e698f13 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+@@ -605,13 +605,16 @@ out_fixup:
+ static int vmw_dma_masks(struct vmw_private *dev_priv)
+ {
+ 	struct drm_device *dev = dev_priv->dev;
++	int ret = 0;
+ 
+-	if (intel_iommu_enabled &&
++	ret = dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(64));
++	if (dev_priv->map_mode != vmw_dma_phys &&
+ 	    (sizeof(unsigned long) == 4 || vmw_restrict_dma_mask)) {
+ 		DRM_INFO("Restricting DMA addresses to 44 bits.\n");
+-		return dma_set_mask(dev->dev, DMA_BIT_MASK(44));
++		return dma_set_mask_and_coherent(dev->dev, DMA_BIT_MASK(44));
+ 	}
+-	return 0;
++
++	return ret;
+ }
+ #else
+ static int vmw_dma_masks(struct vmw_private *dev_priv)
+diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+index 81f5a552e32f..9fe8eda7c859 100644
+--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
++++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+@@ -3769,7 +3769,7 @@ int vmw_execbuf_fence_commands(struct drm_file *file_priv,
+ 		*p_fence = NULL;
+ 	}
+ 
+-	return 0;
++	return ret;
+ }
+ 
+ /**
+diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
+index 29423691c105..d7179dd3c9ef 100644
+--- a/drivers/hid/hid-debug.c
++++ b/drivers/hid/hid-debug.c
+@@ -30,6 +30,7 @@
+ 
+ #include <linux/debugfs.h>
+ #include <linux/seq_file.h>
++#include <linux/kfifo.h>
+ #include <linux/sched.h>
+ #include <linux/export.h>
+ #include <linux/slab.h>
+@@ -455,7 +456,7 @@ static char *resolv_usage_page(unsigned page, struct seq_file *f) {
+ 	char *buf = NULL;
+ 
+ 	if (!f) {
+-		buf = kzalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_ATOMIC);
++		buf = kzalloc(HID_DEBUG_BUFSIZE, GFP_ATOMIC);
+ 		if (!buf)
+ 			return ERR_PTR(-ENOMEM);
+ 	}
+@@ -659,17 +660,12 @@ EXPORT_SYMBOL_GPL(hid_dump_device);
+ /* enqueue string to 'events' ring buffer */
+ void hid_debug_event(struct hid_device *hdev, char *buf)
+ {
+-	unsigned i;
+ 	struct hid_debug_list *list;
+ 	unsigned long flags;
+ 
+ 	spin_lock_irqsave(&hdev->debug_list_lock, flags);
+-	list_for_each_entry(list, &hdev->debug_list, node) {
+-		for (i = 0; buf[i]; i++)
+-			list->hid_debug_buf[(list->tail + i) % HID_DEBUG_BUFSIZE] =
+-				buf[i];
+-		list->tail = (list->tail + i) % HID_DEBUG_BUFSIZE;
+-        }
++	list_for_each_entry(list, &hdev->debug_list, node)
++		kfifo_in(&list->hid_debug_fifo, buf, strlen(buf));
+ 	spin_unlock_irqrestore(&hdev->debug_list_lock, flags);
+ 
+ 	wake_up_interruptible(&hdev->debug_wait);
+@@ -720,8 +716,7 @@ void hid_dump_input(struct hid_device *hdev, struct hid_usage *usage, __s32 valu
+ 	hid_debug_event(hdev, buf);
+ 
+ 	kfree(buf);
+-        wake_up_interruptible(&hdev->debug_wait);
+-
++	wake_up_interruptible(&hdev->debug_wait);
+ }
+ EXPORT_SYMBOL_GPL(hid_dump_input);
+ 
+@@ -1086,8 +1081,8 @@ static int hid_debug_events_open(struct inode *inode, struct file *file)
+ 		goto out;
+ 	}
+ 
+-	if (!(list->hid_debug_buf = kzalloc(sizeof(char) * HID_DEBUG_BUFSIZE, GFP_KERNEL))) {
+-		err = -ENOMEM;
++	err = kfifo_alloc(&list->hid_debug_fifo, HID_DEBUG_FIFOSIZE, GFP_KERNEL);
++	if (err) {
+ 		kfree(list);
+ 		goto out;
+ 	}
+@@ -1107,77 +1102,57 @@ static ssize_t hid_debug_events_read(struct file *file, char __user *buffer,
+ 		size_t count, loff_t *ppos)
+ {
+ 	struct hid_debug_list *list = file->private_data;
+-	int ret = 0, len;
++	int ret = 0, copied;
+ 	DECLARE_WAITQUEUE(wait, current);
+ 
+ 	mutex_lock(&list->read_mutex);
+-	while (ret == 0) {
+-		if (list->head == list->tail) {
+-			add_wait_queue(&list->hdev->debug_wait, &wait);
+-			set_current_state(TASK_INTERRUPTIBLE);
+-
+-			while (list->head == list->tail) {
+-				if (file->f_flags & O_NONBLOCK) {
+-					ret = -EAGAIN;
+-					break;
+-				}
+-				if (signal_pending(current)) {
+-					ret = -ERESTARTSYS;
+-					break;
+-				}
++	if (kfifo_is_empty(&list->hid_debug_fifo)) {
++		add_wait_queue(&list->hdev->debug_wait, &wait);
++		set_current_state(TASK_INTERRUPTIBLE);
++
++		while (kfifo_is_empty(&list->hid_debug_fifo)) {
++			if (file->f_flags & O_NONBLOCK) {
++				ret = -EAGAIN;
++				break;
++			}
+ 
+-				if (!list->hdev || !list->hdev->debug) {
+-					ret = -EIO;
+-					set_current_state(TASK_RUNNING);
+-					goto out;
+-				}
++			if (signal_pending(current)) {
++				ret = -ERESTARTSYS;
++				break;
++			}
+ 
+-				/* allow O_NONBLOCK from other threads */
+-				mutex_unlock(&list->read_mutex);
+-				schedule();
+-				mutex_lock(&list->read_mutex);
+-				set_current_state(TASK_INTERRUPTIBLE);
++			/* if list->hdev is NULL we cannot remove_wait_queue().
++			 * if list->hdev->debug is 0 then hid_debug_unregister()
++			 * was already called and list->hdev is being destroyed.
++			 * if we add remove_wait_queue() here we can hit a race.
++			 */
++			if (!list->hdev || !list->hdev->debug) {
++				ret = -EIO;
++				set_current_state(TASK_RUNNING);
++				goto out;
+ 			}
+ 
+-			set_current_state(TASK_RUNNING);
+-			remove_wait_queue(&list->hdev->debug_wait, &wait);
++			/* allow O_NONBLOCK from other threads */
++			mutex_unlock(&list->read_mutex);
++			schedule();
++			mutex_lock(&list->read_mutex);
++			set_current_state(TASK_INTERRUPTIBLE);
+ 		}
+ 
+-		if (ret)
+-			goto out;
++		__set_current_state(TASK_RUNNING);
++		remove_wait_queue(&list->hdev->debug_wait, &wait);
+ 
+-		/* pass the ringbuffer contents to userspace */
+-copy_rest:
+-		if (list->tail == list->head)
++		if (ret)
+ 			goto out;
+-		if (list->tail > list->head) {
+-			len = list->tail - list->head;
+-			if (len > count)
+-				len = count;
+-
+-			if (copy_to_user(buffer + ret, &list->hid_debug_buf[list->head], len)) {
+-				ret = -EFAULT;
+-				goto out;
+-			}
+-			ret += len;
+-			list->head += len;
+-		} else {
+-			len = HID_DEBUG_BUFSIZE - list->head;
+-			if (len > count)
+-				len = count;
+-
+-			if (copy_to_user(buffer, &list->hid_debug_buf[list->head], len)) {
+-				ret = -EFAULT;
+-				goto out;
+-			}
+-			list->head = 0;
+-			ret += len;
+-			count -= len;
+-			if (count > 0)
+-				goto copy_rest;
+-		}
+-
+ 	}
++
++	/* pass the fifo content to userspace, locking is not needed with only
++	 * one concurrent reader and one concurrent writer
++	 */
++	ret = kfifo_to_user(&list->hid_debug_fifo, buffer, count, &copied);
++	if (ret)
++		goto out;
++	ret = copied;
+ out:
+ 	mutex_unlock(&list->read_mutex);
+ 	return ret;
+@@ -1188,7 +1163,7 @@ static unsigned int hid_debug_events_poll(struct file *file, poll_table *wait)
+ 	struct hid_debug_list *list = file->private_data;
+ 
+ 	poll_wait(file, &list->hdev->debug_wait, wait);
+-	if (list->head != list->tail)
++	if (!kfifo_is_empty(&list->hid_debug_fifo))
+ 		return POLLIN | POLLRDNORM;
+ 	if (!list->hdev->debug)
+ 		return POLLERR | POLLHUP;
+@@ -1203,7 +1178,7 @@ static int hid_debug_events_release(struct inode *inode, struct file *file)
+ 	spin_lock_irqsave(&list->hdev->debug_list_lock, flags);
+ 	list_del(&list->node);
+ 	spin_unlock_irqrestore(&list->hdev->debug_list_lock, flags);
+-	kfree(list->hid_debug_buf);
++	kfifo_free(&list->hid_debug_fifo);
+ 	kfree(list);
+ 
+ 	return 0;
+@@ -1254,4 +1229,3 @@ void hid_debug_exit(void)
+ {
+ 	debugfs_remove_recursive(hid_debug_root);
+ }
+-
+diff --git a/drivers/iio/chemical/atlas-ph-sensor.c b/drivers/iio/chemical/atlas-ph-sensor.c
+index ef761a508630..dad2a8be6830 100644
+--- a/drivers/iio/chemical/atlas-ph-sensor.c
++++ b/drivers/iio/chemical/atlas-ph-sensor.c
+@@ -453,9 +453,8 @@ static int atlas_read_raw(struct iio_dev *indio_dev,
+ 	case IIO_CHAN_INFO_SCALE:
+ 		switch (chan->type) {
+ 		case IIO_TEMP:
+-			*val = 1; /* 0.01 */
+-			*val2 = 100;
+-			break;
++			*val = 10;
++			return IIO_VAL_INT;
+ 		case IIO_PH:
+ 			*val = 1; /* 0.001 */
+ 			*val2 = 1000;
+@@ -486,7 +485,7 @@ static int atlas_write_raw(struct iio_dev *indio_dev,
+ 			   int val, int val2, long mask)
+ {
+ 	struct atlas_data *data = iio_priv(indio_dev);
+-	__be32 reg = cpu_to_be32(val);
++	__be32 reg = cpu_to_be32(val / 10);
+ 
+ 	if (val2 != 0 || val < 0 || val > 20000)
+ 		return -EINVAL;
+diff --git a/drivers/misc/vexpress-syscfg.c b/drivers/misc/vexpress-syscfg.c
+index c344483fa7d6..9f257c53e6d4 100644
+--- a/drivers/misc/vexpress-syscfg.c
++++ b/drivers/misc/vexpress-syscfg.c
+@@ -61,7 +61,7 @@ static int vexpress_syscfg_exec(struct vexpress_syscfg_func *func,
+ 	int tries;
+ 	long timeout;
+ 
+-	if (WARN_ON(index > func->num_templates))
++	if (WARN_ON(index >= func->num_templates))
+ 		return -EINVAL;
+ 
+ 	command = readl(syscfg->base + SYS_CFGCTRL);
+diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+index 141bd70a49c2..b9509230ce4d 100644
+--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
++++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+@@ -168,9 +168,10 @@ int gpmi_init(struct gpmi_nand_data *this)
+ 
+ 	/*
+ 	 * Reset BCH here, too. We got failures otherwise :(
+-	 * See later BCH reset for explanation of MX23 handling
++	 * See later BCH reset for explanation of MX23 and MX28 handling
+ 	 */
+-	ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this));
++	ret = gpmi_reset_block(r->bch_regs,
++			       GPMI_IS_MX23(this) || GPMI_IS_MX28(this));
+ 	if (ret)
+ 		goto err_out;
+ 
+@@ -275,13 +276,11 @@ int bch_set_geometry(struct gpmi_nand_data *this)
+ 
+ 	/*
+ 	* Due to erratum #2847 of the MX23, the BCH cannot be soft reset on this
+-	* chip, otherwise it will lock up. So we skip resetting BCH on the MX23.
+-	* On the other hand, the MX28 needs the reset, because one case has been
+-	* seen where the BCH produced ECC errors constantly after 10000
+-	* consecutive reboots. The latter case has not been seen on the MX23
+-	* yet, still we don't know if it could happen there as well.
++	* chip, otherwise it will lock up. So we skip resetting BCH on the MX23
++	* and MX28.
+ 	*/
+-	ret = gpmi_reset_block(r->bch_regs, GPMI_IS_MX23(this));
++	ret = gpmi_reset_block(r->bch_regs,
++			       GPMI_IS_MX23(this) || GPMI_IS_MX28(this));
+ 	if (ret)
+ 		goto err_out;
+ 
+diff --git a/fs/cifs/Kconfig b/fs/cifs/Kconfig
+index 8bef27b8f85d..e7b478b49985 100644
+--- a/fs/cifs/Kconfig
++++ b/fs/cifs/Kconfig
+@@ -111,7 +111,7 @@ config CIFS_XATTR
+ 
+ config CIFS_POSIX
+         bool "CIFS POSIX Extensions"
+-        depends on CIFS && CIFS_ALLOW_INSECURE_LEGACY && CIFS_XATTR
++        depends on CIFS_XATTR
+         help
+           Enabling this option will cause the cifs client to attempt to
+ 	  negotiate a newer dialect with servers, such as Samba 3.0.5
+diff --git a/fs/debugfs/inode.c b/fs/debugfs/inode.c
+index 3d7de9f4f545..77e9cd7a0137 100644
+--- a/fs/debugfs/inode.c
++++ b/fs/debugfs/inode.c
+@@ -732,6 +732,13 @@ struct dentry *debugfs_rename(struct dentry *old_dir, struct dentry *old_dentry,
+ 	struct dentry *dentry = NULL, *trap;
+ 	struct name_snapshot old_name;
+ 
++	if (IS_ERR(old_dir))
++		return old_dir;
++	if (IS_ERR(new_dir))
++		return new_dir;
++	if (IS_ERR_OR_NULL(old_dentry))
++		return old_dentry;
++
+ 	trap = lock_rename(new_dir, old_dir);
+ 	/* Source or destination directories don't exist? */
+ 	if (d_really_is_negative(old_dir) || d_really_is_negative(new_dir))
+diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
+index 12d780718b48..3656f87d11e3 100644
+--- a/fs/nfsd/nfs4state.c
++++ b/fs/nfsd/nfs4state.c
+@@ -1472,8 +1472,10 @@ free_session_slots(struct nfsd4_session *ses)
+ {
+ 	int i;
+ 
+-	for (i = 0; i < ses->se_fchannel.maxreqs; i++)
++	for (i = 0; i < ses->se_fchannel.maxreqs; i++) {
++		free_svc_cred(&ses->se_slots[i]->sl_cred);
+ 		kfree(ses->se_slots[i]);
++	}
+ }
+ 
+ /*
+@@ -2344,14 +2346,18 @@ nfsd4_store_cache_entry(struct nfsd4_compoundres *resp)
+ 
+ 	dprintk("--> %s slot %p\n", __func__, slot);
+ 
++	slot->sl_flags |= NFSD4_SLOT_INITIALIZED;
+ 	slot->sl_opcnt = resp->opcnt;
+ 	slot->sl_status = resp->cstate.status;
++	free_svc_cred(&slot->sl_cred);
++	copy_cred(&slot->sl_cred, &resp->rqstp->rq_cred);
+ 
+-	slot->sl_flags |= NFSD4_SLOT_INITIALIZED;
+-	if (nfsd4_not_cached(resp)) {
+-		slot->sl_datalen = 0;
++	if (!nfsd4_cache_this(resp)) {
++		slot->sl_flags &= ~NFSD4_SLOT_CACHED;
+ 		return;
+ 	}
++	slot->sl_flags |= NFSD4_SLOT_CACHED;
++
+ 	base = resp->cstate.data_offset;
+ 	slot->sl_datalen = buf->len - base;
+ 	if (read_bytes_from_xdr_buf(buf, base, slot->sl_data, slot->sl_datalen))
+@@ -2378,8 +2384,16 @@ nfsd4_enc_sequence_replay(struct nfsd4_compoundargs *args,
+ 	op = &args->ops[resp->opcnt - 1];
+ 	nfsd4_encode_operation(resp, op);
+ 
+-	/* Return nfserr_retry_uncached_rep in next operation. */
+-	if (args->opcnt > 1 && !(slot->sl_flags & NFSD4_SLOT_CACHETHIS)) {
++	if (slot->sl_flags & NFSD4_SLOT_CACHED)
++		return op->status;
++	if (args->opcnt == 1) {
++		/*
++		 * The original operation wasn't a solo sequence--we
++		 * always cache those--so this retry must not match the
++		 * original:
++		 */
++		op->status = nfserr_seq_false_retry;
++	} else {
+ 		op = &args->ops[resp->opcnt++];
+ 		op->status = nfserr_retry_uncached_rep;
+ 		nfsd4_encode_operation(resp, op);
+@@ -3039,6 +3053,34 @@ static bool nfsd4_request_too_big(struct svc_rqst *rqstp,
+ 	return xb->len > session->se_fchannel.maxreq_sz;
+ }
+ 
++static bool replay_matches_cache(struct svc_rqst *rqstp,
++		 struct nfsd4_sequence *seq, struct nfsd4_slot *slot)
++{
++	struct nfsd4_compoundargs *argp = rqstp->rq_argp;
++
++	if ((bool)(slot->sl_flags & NFSD4_SLOT_CACHETHIS) !=
++	    (bool)seq->cachethis)
++		return false;
++	/*
++	 * If there's an error than the reply can have fewer ops than
++	 * the call.  But if we cached a reply with *more* ops than the
++	 * call you're sending us now, then this new call is clearly not
++	 * really a replay of the old one:
++	 */
++	if (slot->sl_opcnt < argp->opcnt)
++		return false;
++	/* This is the only check explicitly called by spec: */
++	if (!same_creds(&rqstp->rq_cred, &slot->sl_cred))
++		return false;
++	/*
++	 * There may be more comparisons we could actually do, but the
++	 * spec doesn't require us to catch every case where the calls
++	 * don't match (that would require caching the call as well as
++	 * the reply), so we don't bother.
++	 */
++	return true;
++}
++
+ __be32
+ nfsd4_sequence(struct svc_rqst *rqstp,
+ 	       struct nfsd4_compound_state *cstate,
+@@ -3098,6 +3140,9 @@ nfsd4_sequence(struct svc_rqst *rqstp,
+ 		status = nfserr_seq_misordered;
+ 		if (!(slot->sl_flags & NFSD4_SLOT_INITIALIZED))
+ 			goto out_put_session;
++		status = nfserr_seq_false_retry;
++		if (!replay_matches_cache(rqstp, seq, slot))
++			goto out_put_session;
+ 		cstate->slot = slot;
+ 		cstate->session = session;
+ 		cstate->clp = clp;
+diff --git a/fs/nfsd/state.h b/fs/nfsd/state.h
+index 005c911b34ac..86aa92d200e1 100644
+--- a/fs/nfsd/state.h
++++ b/fs/nfsd/state.h
+@@ -169,11 +169,13 @@ static inline struct nfs4_delegation *delegstateid(struct nfs4_stid *s)
+ struct nfsd4_slot {
+ 	u32	sl_seqid;
+ 	__be32	sl_status;
++	struct svc_cred sl_cred;
+ 	u32	sl_datalen;
+ 	u16	sl_opcnt;
+ #define NFSD4_SLOT_INUSE	(1 << 0)
+ #define NFSD4_SLOT_CACHETHIS	(1 << 1)
+ #define NFSD4_SLOT_INITIALIZED	(1 << 2)
++#define NFSD4_SLOT_CACHED	(1 << 3)
+ 	u8	sl_flags;
+ 	char	sl_data[];
+ };
+diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h
+index 8fda4abdf3b1..448e74e32344 100644
+--- a/fs/nfsd/xdr4.h
++++ b/fs/nfsd/xdr4.h
+@@ -645,9 +645,18 @@ static inline bool nfsd4_is_solo_sequence(struct nfsd4_compoundres *resp)
+ 	return resp->opcnt == 1 && args->ops[0].opnum == OP_SEQUENCE;
+ }
+ 
+-static inline bool nfsd4_not_cached(struct nfsd4_compoundres *resp)
++/*
++ * The session reply cache only needs to cache replies that the client
++ * actually asked us to.  But it's almost free for us to cache compounds
++ * consisting of only a SEQUENCE op, so we may as well cache those too.
++ * Also, the protocol doesn't give us a convenient response in the case
++ * of a replay of a solo SEQUENCE op that wasn't cached
++ * (RETRY_UNCACHED_REP can only be returned in the second op of a
++ * compound).
++ */
++static inline bool nfsd4_cache_this(struct nfsd4_compoundres *resp)
+ {
+-	return !(resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
++	return (resp->cstate.slot->sl_flags & NFSD4_SLOT_CACHETHIS)
+ 		|| nfsd4_is_solo_sequence(resp);
+ }
+ 
+diff --git a/include/linux/hid-debug.h b/include/linux/hid-debug.h
+index 8663f216c563..2d6100edf204 100644
+--- a/include/linux/hid-debug.h
++++ b/include/linux/hid-debug.h
+@@ -24,7 +24,10 @@
+ 
+ #ifdef CONFIG_DEBUG_FS
+ 
++#include <linux/kfifo.h>
++
+ #define HID_DEBUG_BUFSIZE 512
++#define HID_DEBUG_FIFOSIZE 512
+ 
+ void hid_dump_input(struct hid_device *, struct hid_usage *, __s32);
+ void hid_dump_report(struct hid_device *, int , u8 *, int);
+@@ -37,11 +40,8 @@ void hid_debug_init(void);
+ void hid_debug_exit(void);
+ void hid_debug_event(struct hid_device *, char *);
+ 
+-
+ struct hid_debug_list {
+-	char *hid_debug_buf;
+-	int head;
+-	int tail;
++	DECLARE_KFIFO_PTR(hid_debug_fifo, char);
+ 	struct fasync_struct *fasync;
+ 	struct hid_device *hdev;
+ 	struct list_head node;
+@@ -64,4 +64,3 @@ struct hid_debug_list {
+ #endif
+ 
+ #endif
+-
+diff --git a/kernel/signal.c b/kernel/signal.c
+index 049929a5f4ce..798b8f495ae2 100644
+--- a/kernel/signal.c
++++ b/kernel/signal.c
+@@ -696,6 +696,48 @@ static inline bool si_fromuser(const struct siginfo *info)
+ 		(!is_si_special(info) && SI_FROMUSER(info));
+ }
+ 
++static int dequeue_synchronous_signal(siginfo_t *info)
++{
++	struct task_struct *tsk = current;
++	struct sigpending *pending = &tsk->pending;
++	struct sigqueue *q, *sync = NULL;
++
++	/*
++	 * Might a synchronous signal be in the queue?
++	 */
++	if (!((pending->signal.sig[0] & ~tsk->blocked.sig[0]) & SYNCHRONOUS_MASK))
++		return 0;
++
++	/*
++	 * Return the first synchronous signal in the queue.
++	 */
++	list_for_each_entry(q, &pending->list, list) {
++		/* Synchronous signals have a postive si_code */
++		if ((q->info.si_code > SI_USER) &&
++		    (sigmask(q->info.si_signo) & SYNCHRONOUS_MASK)) {
++			sync = q;
++			goto next;
++		}
++	}
++	return 0;
++next:
++	/*
++	 * Check if there is another siginfo for the same signal.
++	 */
++	list_for_each_entry_continue(q, &pending->list, list) {
++		if (q->info.si_signo == sync->info.si_signo)
++			goto still_pending;
++	}
++
++	sigdelset(&pending->signal, sync->info.si_signo);
++	recalc_sigpending();
++still_pending:
++	list_del_init(&sync->list);
++	copy_siginfo(info, &sync->info);
++	__sigqueue_free(sync);
++	return info->si_signo;
++}
++
+ /*
+  * called with RCU read lock from check_kill_permission()
+  */
+@@ -2198,6 +2240,11 @@ relock:
+ 		goto relock;
+ 	}
+ 
++	/* Has this task already been marked for death? */
++	ksig->info.si_signo = signr = SIGKILL;
++	if (signal_group_exit(signal))
++		goto fatal;
++
+ 	for (;;) {
+ 		struct k_sigaction *ka;
+ 
+@@ -2211,7 +2258,15 @@ relock:
+ 			goto relock;
+ 		}
+ 
+-		signr = dequeue_signal(current, &current->blocked, &ksig->info);
++		/*
++		 * Signals generated by the execution of an instruction
++		 * need to be delivered before any other pending signals
++		 * so that the instruction pointer in the signal stack
++		 * frame points to the faulting instruction.
++		 */
++		signr = dequeue_synchronous_signal(&ksig->info);
++		if (!signr)
++			signr = dequeue_signal(current, &current->blocked, &ksig->info);
+ 
+ 		if (!signr)
+ 			break; /* will return 0 */
+@@ -2293,6 +2348,7 @@ relock:
+ 			continue;
+ 		}
+ 
++	fatal:
+ 		spin_unlock_irq(&sighand->siglock);
+ 
+ 		/*
+diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
+index 08ce36147c4c..8f7883b7d717 100644
+--- a/net/batman-adv/hard-interface.c
++++ b/net/batman-adv/hard-interface.c
+@@ -19,7 +19,6 @@
+ #include "main.h"
+ 
+ #include <linux/atomic.h>
+-#include <linux/bug.h>
+ #include <linux/byteorder/generic.h>
+ #include <linux/errno.h>
+ #include <linux/fs.h>
+@@ -172,8 +171,10 @@ static bool batadv_is_on_batman_iface(const struct net_device *net_dev)
+ 	parent_dev = __dev_get_by_index((struct net *)parent_net,
+ 					dev_get_iflink(net_dev));
+ 	/* if we got a NULL parent_dev there is something broken.. */
+-	if (WARN(!parent_dev, "Cannot find parent device"))
++	if (!parent_dev) {
++		pr_err("Cannot find parent device\n");
+ 		return false;
++	}
+ 
+ 	if (batadv_mutual_parents(net_dev, net, parent_dev, parent_net))
+ 		return false;
+diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
+index 05bc176decf0..835af771a9fd 100644
+--- a/net/batman-adv/soft-interface.c
++++ b/net/batman-adv/soft-interface.c
+@@ -211,6 +211,8 @@ static int batadv_interface_tx(struct sk_buff *skb,
+ 
+ 	netif_trans_update(soft_iface);
+ 	vid = batadv_get_vid(skb, 0);
++
++	skb_reset_mac_header(skb);
+ 	ethhdr = eth_hdr(skb);
+ 
+ 	switch (ntohs(ethhdr->h_proto)) {
+diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
+index 5a8075d9f2e7..93eb606f7628 100644
+--- a/net/ceph/messenger.c
++++ b/net/ceph/messenger.c
+@@ -3186,9 +3186,10 @@ void ceph_con_keepalive(struct ceph_connection *con)
+ 	dout("con_keepalive %p\n", con);
+ 	mutex_lock(&con->mutex);
+ 	clear_standby(con);
++	con_flag_set(con, CON_FLAG_KEEPALIVE_PENDING);
+ 	mutex_unlock(&con->mutex);
+-	if (con_flag_test_and_set(con, CON_FLAG_KEEPALIVE_PENDING) == 0 &&
+-	    con_flag_test_and_set(con, CON_FLAG_WRITE_PENDING) == 0)
++
++	if (con_flag_test_and_set(con, CON_FLAG_WRITE_PENDING) == 0)
+ 		queue_con(con);
+ }
+ EXPORT_SYMBOL(ceph_con_keepalive);
+diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
+index 6a0fb9dbc1ba..f8de166b788a 100644
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1852,9 +1852,16 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
+ 				int head_need, bool may_encrypt)
+ {
+ 	struct ieee80211_local *local = sdata->local;
++	struct ieee80211_hdr *hdr;
++	bool enc_tailroom;
+ 	int tail_need = 0;
+ 
+-	if (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt) {
++	hdr = (struct ieee80211_hdr *) skb->data;
++	enc_tailroom = may_encrypt &&
++		       (sdata->crypto_tx_tailroom_needed_cnt ||
++			ieee80211_is_mgmt(hdr->frame_control));
++
++	if (enc_tailroom) {
+ 		tail_need = IEEE80211_ENCRYPT_TAILROOM;
+ 		tail_need -= skb_tailroom(skb);
+ 		tail_need = max_t(int, tail_need, 0);
+@@ -1862,8 +1869,7 @@ static int ieee80211_skb_resize(struct ieee80211_sub_if_data *sdata,
+ 
+ 	if (skb_cloned(skb) &&
+ 	    (!ieee80211_hw_check(&local->hw, SUPPORTS_CLONED_SKBS) ||
+-	     !skb_clone_writable(skb, ETH_HLEN) ||
+-	     (may_encrypt && sdata->crypto_tx_tailroom_needed_cnt)))
++	     !skb_clone_writable(skb, ETH_HLEN) || enc_tailroom))
+ 		I802_DEBUG_INC(local->tx_expand_skb_head_cloned);
+ 	else if (head_need || tail_need)
+ 		I802_DEBUG_INC(local->tx_expand_skb_head);
+diff --git a/net/xfrm/xfrm_user.c b/net/xfrm/xfrm_user.c
+index 026770884d46..f6f91c3b2de0 100644
+--- a/net/xfrm/xfrm_user.c
++++ b/net/xfrm/xfrm_user.c
+@@ -1408,10 +1408,15 @@ static int validate_tmpl(int nr, struct xfrm_user_tmpl *ut, u16 family)
+ 		if (!ut[i].family)
+ 			ut[i].family = family;
+ 
+-		if ((ut[i].mode == XFRM_MODE_TRANSPORT) &&
+-		    (ut[i].family != prev_family))
+-			return -EINVAL;
+-
++		switch (ut[i].mode) {
++		case XFRM_MODE_TUNNEL:
++		case XFRM_MODE_BEET:
++			break;
++		default:
++			if (ut[i].family != prev_family)
++				return -EINVAL;
++			break;
++		}
+ 		if (ut[i].mode >= XFRM_MODE_MAX)
+ 			return -EINVAL;
+ 
+diff --git a/samples/mei/mei-amt-version.c b/samples/mei/mei-amt-version.c
+index 57d0d871dcf7..bb9988914a56 100644
+--- a/samples/mei/mei-amt-version.c
++++ b/samples/mei/mei-amt-version.c
+@@ -117,7 +117,7 @@ static bool mei_init(struct mei *me, const uuid_le *guid,
+ 
+ 	me->verbose = verbose;
+ 
+-	me->fd = open("/dev/mei", O_RDWR);
++	me->fd = open("/dev/mei0", O_RDWR);
+ 	if (me->fd == -1) {
+ 		mei_err(me, "Cannot establish a handle to the Intel MEI driver\n");
+ 		goto err;

diff --git a/1157_linux-4.9.158.patch b/1157_linux-4.9.158.patch
new file mode 100644
index 0000000..b38b7c6
--- /dev/null
+++ b/1157_linux-4.9.158.patch
@@ -0,0 +1,34 @@
+diff --git a/Makefile b/Makefile
+index 4eb7a17e18f1..2b8434aaeece 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 157
++SUBLEVEL = 158
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+ 
+diff --git a/fs/binfmt_script.c b/fs/binfmt_script.c
+index 634bdbb23851..afdf4e3cafc2 100644
+--- a/fs/binfmt_script.c
++++ b/fs/binfmt_script.c
+@@ -43,14 +43,10 @@ static int load_script(struct linux_binprm *bprm)
+ 	fput(bprm->file);
+ 	bprm->file = NULL;
+ 
+-	for (cp = bprm->buf+2;; cp++) {
+-		if (cp >= bprm->buf + BINPRM_BUF_SIZE)
+-			return -ENOEXEC;
+-		if (!*cp || (*cp == '\n'))
+-			break;
+-	}
++	bprm->buf[BINPRM_BUF_SIZE - 1] = '\0';
++	if ((cp = strchr(bprm->buf, '\n')) == NULL)
++		cp = bprm->buf+BINPRM_BUF_SIZE-1;
+ 	*cp = '\0';
+-
+ 	while (cp > bprm->buf) {
+ 		cp--;
+ 		if ((*cp == ' ') || (*cp == '\t'))