[gentoo-commits] proj/linux-patches:4.14 commit in: /

[Mike Pagano]

commit:     316f136dd790037a552e77ba0ef96b8aa00e9493
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed May  2 16:14:20 2018 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed May  2 16:14:20 2018 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=316f136d

Linux patch 4.14.39

 0000_README              |    4 +
 1038_linux-4.14.39.patch | 3551 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 3555 insertions(+)

diff --git a/0000_README b/0000_README
index 03b1461..648c705 100644
--- a/0000_README
+++ b/0000_README
@@ -195,6 +195,10 @@ Patch:  1037_linux-4.14.38.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.14.38
 
+Patch:  1038_linux-4.14.39.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.14.39
+
 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/1038_linux-4.14.39.patch b/1038_linux-4.14.39.patch
new file mode 100644
index 0000000..f7760eb
--- /dev/null
+++ b/1038_linux-4.14.39.patch
@@ -0,0 +1,3551 @@
+diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
+index 0f9089416b4c..88ad78c6f605 100644
+--- a/Documentation/virtual/kvm/api.txt
++++ b/Documentation/virtual/kvm/api.txt
+@@ -1940,6 +1940,9 @@ ARM 32-bit VFP control registers have the following id bit patterns:
+ ARM 64-bit FP registers have the following id bit patterns:
+   0x4030 0000 0012 0 <regno:12>
+ 
++ARM firmware pseudo-registers have the following bit pattern:
++  0x4030 0000 0014 <regno:16>
++
+ 
+ arm64 registers are mapped using the lower 32 bits. The upper 16 of
+ that is the register group type, or coprocessor number:
+@@ -1956,6 +1959,9 @@ arm64 CCSIDR registers are demultiplexed by CSSELR value:
+ arm64 system registers have the following id bit patterns:
+   0x6030 0000 0013 <op0:2> <op1:3> <crn:4> <crm:4> <op2:3>
+ 
++arm64 firmware pseudo-registers have the following bit pattern:
++  0x6030 0000 0014 <regno:16>
++
+ 
+ MIPS registers are mapped using the lower 32 bits.  The upper 16 of that is
+ the register group type:
+@@ -2490,7 +2496,8 @@ Possible features:
+ 	  and execute guest code when KVM_RUN is called.
+ 	- KVM_ARM_VCPU_EL1_32BIT: Starts the CPU in a 32bit mode.
+ 	  Depends on KVM_CAP_ARM_EL1_32BIT (arm64 only).
+-	- KVM_ARM_VCPU_PSCI_0_2: Emulate PSCI v0.2 for the CPU.
++	- KVM_ARM_VCPU_PSCI_0_2: Emulate PSCI v0.2 (or a future revision
++          backward compatible with v0.2) for the CPU.
+ 	  Depends on KVM_CAP_ARM_PSCI_0_2.
+ 	- KVM_ARM_VCPU_PMU_V3: Emulate PMUv3 for the CPU.
+ 	  Depends on KVM_CAP_ARM_PMU_V3.
+diff --git a/Documentation/virtual/kvm/arm/psci.txt b/Documentation/virtual/kvm/arm/psci.txt
+new file mode 100644
+index 000000000000..aafdab887b04
+--- /dev/null
++++ b/Documentation/virtual/kvm/arm/psci.txt
+@@ -0,0 +1,30 @@
++KVM implements the PSCI (Power State Coordination Interface)
++specification in order to provide services such as CPU on/off, reset
++and power-off to the guest.
++
++The PSCI specification is regularly updated to provide new features,
++and KVM implements these updates if they make sense from a virtualization
++point of view.
++
++This means that a guest booted on two different versions of KVM can
++observe two different "firmware" revisions. This could cause issues if
++a given guest is tied to a particular PSCI revision (unlikely), or if
++a migration causes a different PSCI version to be exposed out of the
++blue to an unsuspecting guest.
++
++In order to remedy this situation, KVM exposes a set of "firmware
++pseudo-registers" that can be manipulated using the GET/SET_ONE_REG
++interface. These registers can be saved/restored by userspace, and set
++to a convenient value if required.
++
++The following register is defined:
++
++* KVM_REG_ARM_PSCI_VERSION:
++
++  - Only valid if the vcpu has the KVM_ARM_VCPU_PSCI_0_2 feature set
++    (and thus has already been initialized)
++  - Returns the current PSCI version on GET_ONE_REG (defaulting to the
++    highest PSCI version implemented by KVM and compatible with v0.2)
++  - Allows any PSCI version implemented by KVM and compatible with
++    v0.2 to be set with SET_ONE_REG
++  - Affects the whole VM (even if the register view is per-vcpu)
+diff --git a/Makefile b/Makefile
+index 27a8d5c37180..248b99283f71 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,7 +1,7 @@
+ # SPDX-License-Identifier: GPL-2.0
+ VERSION = 4
+ PATCHLEVEL = 14
+-SUBLEVEL = 38
++SUBLEVEL = 39
+ EXTRAVERSION =
+ NAME = Petit Gorille
+ 
+diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig
+index 2620ce790db0..371fca4e1ab7 100644
+--- a/arch/arm/configs/socfpga_defconfig
++++ b/arch/arm/configs/socfpga_defconfig
+@@ -57,6 +57,7 @@ CONFIG_MTD_M25P80=y
+ CONFIG_MTD_NAND=y
+ CONFIG_MTD_NAND_DENALI_DT=y
+ CONFIG_MTD_SPI_NOR=y
++# CONFIG_MTD_SPI_NOR_USE_4K_SECTORS is not set
+ CONFIG_SPI_CADENCE_QUADSPI=y
+ CONFIG_OF_OVERLAY=y
+ CONFIG_OF_CONFIGFS=y
+diff --git a/arch/arm/include/asm/kvm_host.h b/arch/arm/include/asm/kvm_host.h
+index 31fbb9285f62..8f973e3b7348 100644
+--- a/arch/arm/include/asm/kvm_host.h
++++ b/arch/arm/include/asm/kvm_host.h
+@@ -75,6 +75,9 @@ struct kvm_arch {
+ 	/* Interrupt controller */
+ 	struct vgic_dist	vgic;
+ 	int max_vcpus;
++
++	/* Mandated version of PSCI */
++	u32 psci_version;
+ };
+ 
+ #define KVM_NR_MEM_OBJS     40
+diff --git a/arch/arm/include/uapi/asm/kvm.h b/arch/arm/include/uapi/asm/kvm.h
+index 1f57bbe82b6f..df24fc8da1bc 100644
+--- a/arch/arm/include/uapi/asm/kvm.h
++++ b/arch/arm/include/uapi/asm/kvm.h
+@@ -180,6 +180,12 @@ struct kvm_arch_memory_slot {
+ #define KVM_REG_ARM_VFP_FPINST		0x1009
+ #define KVM_REG_ARM_VFP_FPINST2		0x100A
+ 
++/* KVM-as-firmware specific pseudo-registers */
++#define KVM_REG_ARM_FW			(0x0014 << KVM_REG_ARM_COPROC_SHIFT)
++#define KVM_REG_ARM_FW_REG(r)		(KVM_REG_ARM | KVM_REG_SIZE_U64 | \
++					 KVM_REG_ARM_FW | ((r) & 0xffff))
++#define KVM_REG_ARM_PSCI_VERSION	KVM_REG_ARM_FW_REG(0)
++
+ /* Device Control API: ARM VGIC */
+ #define KVM_DEV_ARM_VGIC_GRP_ADDR	0
+ #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS	1
+diff --git a/arch/arm/kvm/guest.c b/arch/arm/kvm/guest.c
+index 1e0784ebbfd6..a18f33edc471 100644
+--- a/arch/arm/kvm/guest.c
++++ b/arch/arm/kvm/guest.c
+@@ -22,6 +22,7 @@
+ #include <linux/module.h>
+ #include <linux/vmalloc.h>
+ #include <linux/fs.h>
++#include <kvm/arm_psci.h>
+ #include <asm/cputype.h>
+ #include <linux/uaccess.h>
+ #include <asm/kvm.h>
+@@ -176,6 +177,7 @@ static unsigned long num_core_regs(void)
+ unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu)
+ {
+ 	return num_core_regs() + kvm_arm_num_coproc_regs(vcpu)
++		+ kvm_arm_get_fw_num_regs(vcpu)
+ 		+ NUM_TIMER_REGS;
+ }
+ 
+@@ -196,6 +198,11 @@ int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
+ 		uindices++;
+ 	}
+ 
++	ret = kvm_arm_copy_fw_reg_indices(vcpu, uindices);
++	if (ret)
++		return ret;
++	uindices += kvm_arm_get_fw_num_regs(vcpu);
++
+ 	ret = copy_timer_indices(vcpu, uindices);
+ 	if (ret)
+ 		return ret;
+@@ -214,6 +221,9 @@ int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
+ 	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
+ 		return get_core_reg(vcpu, reg);
+ 
++	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
++		return kvm_arm_get_fw_reg(vcpu, reg);
++
+ 	if (is_timer_reg(reg->id))
+ 		return get_timer_reg(vcpu, reg);
+ 
+@@ -230,6 +240,9 @@ int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
+ 	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
+ 		return set_core_reg(vcpu, reg);
+ 
++	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
++		return kvm_arm_set_fw_reg(vcpu, reg);
++
+ 	if (is_timer_reg(reg->id))
+ 		return set_timer_reg(vcpu, reg);
+ 
+diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
+index 8ad208cb866c..8abec9f7f430 100644
+--- a/arch/arm64/include/asm/kvm_host.h
++++ b/arch/arm64/include/asm/kvm_host.h
+@@ -71,6 +71,9 @@ struct kvm_arch {
+ 
+ 	/* Interrupt controller */
+ 	struct vgic_dist	vgic;
++
++	/* Mandated version of PSCI */
++	u32 psci_version;
+ };
+ 
+ #define KVM_NR_MEM_OBJS     40
+diff --git a/arch/arm64/include/uapi/asm/kvm.h b/arch/arm64/include/uapi/asm/kvm.h
+index 51149ec75fe4..9f74ce5899f0 100644
+--- a/arch/arm64/include/uapi/asm/kvm.h
++++ b/arch/arm64/include/uapi/asm/kvm.h
+@@ -200,6 +200,12 @@ struct kvm_arch_memory_slot {
+ #define KVM_REG_ARM_TIMER_CNT		ARM64_SYS_REG(3, 3, 14, 3, 2)
+ #define KVM_REG_ARM_TIMER_CVAL		ARM64_SYS_REG(3, 3, 14, 0, 2)
+ 
++/* KVM-as-firmware specific pseudo-registers */
++#define KVM_REG_ARM_FW			(0x0014 << KVM_REG_ARM_COPROC_SHIFT)
++#define KVM_REG_ARM_FW_REG(r)		(KVM_REG_ARM64 | KVM_REG_SIZE_U64 | \
++					 KVM_REG_ARM_FW | ((r) & 0xffff))
++#define KVM_REG_ARM_PSCI_VERSION	KVM_REG_ARM_FW_REG(0)
++
+ /* Device Control API: ARM VGIC */
+ #define KVM_DEV_ARM_VGIC_GRP_ADDR	0
+ #define KVM_DEV_ARM_VGIC_GRP_DIST_REGS	1
+diff --git a/arch/arm64/kvm/guest.c b/arch/arm64/kvm/guest.c
+index 5c7f657dd207..811f04c5760e 100644
+--- a/arch/arm64/kvm/guest.c
++++ b/arch/arm64/kvm/guest.c
+@@ -25,6 +25,7 @@
+ #include <linux/module.h>
+ #include <linux/vmalloc.h>
+ #include <linux/fs.h>
++#include <kvm/arm_psci.h>
+ #include <asm/cputype.h>
+ #include <linux/uaccess.h>
+ #include <asm/kvm.h>
+@@ -205,7 +206,7 @@ static int get_timer_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
+ unsigned long kvm_arm_num_regs(struct kvm_vcpu *vcpu)
+ {
+ 	return num_core_regs() + kvm_arm_num_sys_reg_descs(vcpu)
+-                + NUM_TIMER_REGS;
++		+ kvm_arm_get_fw_num_regs(vcpu)	+ NUM_TIMER_REGS;
+ }
+ 
+ /**
+@@ -225,6 +226,11 @@ int kvm_arm_copy_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
+ 		uindices++;
+ 	}
+ 
++	ret = kvm_arm_copy_fw_reg_indices(vcpu, uindices);
++	if (ret)
++		return ret;
++	uindices += kvm_arm_get_fw_num_regs(vcpu);
++
+ 	ret = copy_timer_indices(vcpu, uindices);
+ 	if (ret)
+ 		return ret;
+@@ -243,6 +249,9 @@ int kvm_arm_get_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
+ 	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
+ 		return get_core_reg(vcpu, reg);
+ 
++	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
++		return kvm_arm_get_fw_reg(vcpu, reg);
++
+ 	if (is_timer_reg(reg->id))
+ 		return get_timer_reg(vcpu, reg);
+ 
+@@ -259,6 +268,9 @@ int kvm_arm_set_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
+ 	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_CORE)
+ 		return set_core_reg(vcpu, reg);
+ 
++	if ((reg->id & KVM_REG_ARM_COPROC_MASK) == KVM_REG_ARM_FW)
++		return kvm_arm_set_fw_reg(vcpu, reg);
++
+ 	if (is_timer_reg(reg->id))
+ 		return set_timer_reg(vcpu, reg);
+ 
+diff --git a/arch/powerpc/kernel/eeh_driver.c b/arch/powerpc/kernel/eeh_driver.c
+index 8b840191df59..ca2243df9cb2 100644
+--- a/arch/powerpc/kernel/eeh_driver.c
++++ b/arch/powerpc/kernel/eeh_driver.c
+@@ -207,18 +207,18 @@ static void *eeh_report_error(void *data, void *userdata)
+ 
+ 	if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
+ 		return NULL;
++
++	device_lock(&dev->dev);
+ 	dev->error_state = pci_channel_io_frozen;
+ 
+ 	driver = eeh_pcid_get(dev);
+-	if (!driver) return NULL;
++	if (!driver) goto out_no_dev;
+ 
+ 	eeh_disable_irq(dev);
+ 
+ 	if (!driver->err_handler ||
+-	    !driver->err_handler->error_detected) {
+-		eeh_pcid_put(dev);
+-		return NULL;
+-	}
++	    !driver->err_handler->error_detected)
++		goto out;
+ 
+ 	rc = driver->err_handler->error_detected(dev, pci_channel_io_frozen);
+ 
+@@ -227,7 +227,10 @@ static void *eeh_report_error(void *data, void *userdata)
+ 	if (*res == PCI_ERS_RESULT_NONE) *res = rc;
+ 
+ 	edev->in_error = true;
++out:
+ 	eeh_pcid_put(dev);
++out_no_dev:
++	device_unlock(&dev->dev);
+ 	return NULL;
+ }
+ 
+@@ -250,15 +253,14 @@ static void *eeh_report_mmio_enabled(void *data, void *userdata)
+ 	if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
+ 		return NULL;
+ 
++	device_lock(&dev->dev);
+ 	driver = eeh_pcid_get(dev);
+-	if (!driver) return NULL;
++	if (!driver) goto out_no_dev;
+ 
+ 	if (!driver->err_handler ||
+ 	    !driver->err_handler->mmio_enabled ||
+-	    (edev->mode & EEH_DEV_NO_HANDLER)) {
+-		eeh_pcid_put(dev);
+-		return NULL;
+-	}
++	    (edev->mode & EEH_DEV_NO_HANDLER))
++		goto out;
+ 
+ 	rc = driver->err_handler->mmio_enabled(dev);
+ 
+@@ -266,7 +268,10 @@ static void *eeh_report_mmio_enabled(void *data, void *userdata)
+ 	if (rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
+ 	if (*res == PCI_ERS_RESULT_NONE) *res = rc;
+ 
++out:
+ 	eeh_pcid_put(dev);
++out_no_dev:
++	device_unlock(&dev->dev);
+ 	return NULL;
+ }
+ 
+@@ -289,20 +294,20 @@ static void *eeh_report_reset(void *data, void *userdata)
+ 
+ 	if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
+ 		return NULL;
++
++	device_lock(&dev->dev);
+ 	dev->error_state = pci_channel_io_normal;
+ 
+ 	driver = eeh_pcid_get(dev);
+-	if (!driver) return NULL;
++	if (!driver) goto out_no_dev;
+ 
+ 	eeh_enable_irq(dev);
+ 
+ 	if (!driver->err_handler ||
+ 	    !driver->err_handler->slot_reset ||
+ 	    (edev->mode & EEH_DEV_NO_HANDLER) ||
+-	    (!edev->in_error)) {
+-		eeh_pcid_put(dev);
+-		return NULL;
+-	}
++	    (!edev->in_error))
++		goto out;
+ 
+ 	rc = driver->err_handler->slot_reset(dev);
+ 	if ((*res == PCI_ERS_RESULT_NONE) ||
+@@ -310,7 +315,10 @@ static void *eeh_report_reset(void *data, void *userdata)
+ 	if (*res == PCI_ERS_RESULT_DISCONNECT &&
+ 	     rc == PCI_ERS_RESULT_NEED_RESET) *res = rc;
+ 
++out:
+ 	eeh_pcid_put(dev);
++out_no_dev:
++	device_unlock(&dev->dev);
+ 	return NULL;
+ }
+ 
+@@ -361,10 +369,12 @@ static void *eeh_report_resume(void *data, void *userdata)
+ 
+ 	if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
+ 		return NULL;
++
++	device_lock(&dev->dev);
+ 	dev->error_state = pci_channel_io_normal;
+ 
+ 	driver = eeh_pcid_get(dev);
+-	if (!driver) return NULL;
++	if (!driver) goto out_no_dev;
+ 
+ 	was_in_error = edev->in_error;
+ 	edev->in_error = false;
+@@ -374,13 +384,15 @@ static void *eeh_report_resume(void *data, void *userdata)
+ 	    !driver->err_handler->resume ||
+ 	    (edev->mode & EEH_DEV_NO_HANDLER) || !was_in_error) {
+ 		edev->mode &= ~EEH_DEV_NO_HANDLER;
+-		eeh_pcid_put(dev);
+-		return NULL;
++		goto out;
+ 	}
+ 
+ 	driver->err_handler->resume(dev);
+ 
++out:
+ 	eeh_pcid_put(dev);
++out_no_dev:
++	device_unlock(&dev->dev);
+ 	return NULL;
+ }
+ 
+@@ -400,22 +412,25 @@ static void *eeh_report_failure(void *data, void *userdata)
+ 
+ 	if (!dev || eeh_dev_removed(edev) || eeh_pe_passed(edev->pe))
+ 		return NULL;
++
++	device_lock(&dev->dev);
+ 	dev->error_state = pci_channel_io_perm_failure;
+ 
+ 	driver = eeh_pcid_get(dev);
+-	if (!driver) return NULL;
++	if (!driver) goto out_no_dev;
+ 
+ 	eeh_disable_irq(dev);
+ 
+ 	if (!driver->err_handler ||
+-	    !driver->err_handler->error_detected) {
+-		eeh_pcid_put(dev);
+-		return NULL;
+-	}
++	    !driver->err_handler->error_detected)
++		goto out;
+ 
+ 	driver->err_handler->error_detected(dev, pci_channel_io_perm_failure);
+ 
++out:
+ 	eeh_pcid_put(dev);
++out_no_dev:
++	device_unlock(&dev->dev);
+ 	return NULL;
+ }
+ 
+diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
+index 4362b86ef84c..9c2f83331e5b 100644
+--- a/arch/powerpc/mm/mem.c
++++ b/arch/powerpc/mm/mem.c
+@@ -143,6 +143,7 @@ int arch_add_memory(int nid, u64 start, u64 size, bool want_memblock)
+ 			start, start + size, rc);
+ 		return -EFAULT;
+ 	}
++	flush_inval_dcache_range(start, start + size);
+ 
+ 	return __add_pages(nid, start_pfn, nr_pages, want_memblock);
+ }
+@@ -171,6 +172,7 @@ int arch_remove_memory(u64 start, u64 size)
+ 
+ 	/* Remove htab bolted mappings for this section of memory */
+ 	start = (unsigned long)__va(start);
++	flush_inval_dcache_range(start, start + size);
+ 	ret = remove_section_mapping(start, start + size);
+ 
+ 	/* Ensure all vmalloc mappings are flushed in case they also
+diff --git a/arch/powerpc/platforms/powernv/npu-dma.c b/arch/powerpc/platforms/powernv/npu-dma.c
+index 2cb6cbea4b3b..4043109f4051 100644
+--- a/arch/powerpc/platforms/powernv/npu-dma.c
++++ b/arch/powerpc/platforms/powernv/npu-dma.c
+@@ -33,6 +33,13 @@
+ 
+ #define npu_to_phb(x) container_of(x, struct pnv_phb, npu)
+ 
++/*
++ * When an address shootdown range exceeds this threshold we invalidate the
++ * entire TLB on the GPU for the given PID rather than each specific address in
++ * the range.
++ */
++#define ATSD_THRESHOLD (2*1024*1024)
++
+ /*
+  * Other types of TCE cache invalidation are not functional in the
+  * hardware.
+@@ -621,11 +628,19 @@ static void pnv_npu2_mn_invalidate_range(struct mmu_notifier *mn,
+ 	struct npu_context *npu_context = mn_to_npu_context(mn);
+ 	unsigned long address;
+ 
+-	for (address = start; address < end; address += PAGE_SIZE)
+-		mmio_invalidate(npu_context, 1, address, false);
++	if (end - start > ATSD_THRESHOLD) {
++		/*
++		 * Just invalidate the entire PID if the address range is too
++		 * large.
++		 */
++		mmio_invalidate(npu_context, 0, 0, true);
++	} else {
++		for (address = start; address < end; address += PAGE_SIZE)
++			mmio_invalidate(npu_context, 1, address, false);
+ 
+-	/* Do the flush only on the final addess == end */
+-	mmio_invalidate(npu_context, 1, address, true);
++		/* Do the flush only on the final addess == end */
++		mmio_invalidate(npu_context, 1, address, true);
++	}
+ }
+ 
+ static const struct mmu_notifier_ops nv_nmmu_notifier_ops = {
+diff --git a/arch/powerpc/platforms/powernv/opal-rtc.c b/arch/powerpc/platforms/powernv/opal-rtc.c
+index f8868864f373..aa2a5139462e 100644
+--- a/arch/powerpc/platforms/powernv/opal-rtc.c
++++ b/arch/powerpc/platforms/powernv/opal-rtc.c
+@@ -48,10 +48,12 @@ unsigned long __init opal_get_boot_time(void)
+ 
+ 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
+ 		rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
+-		if (rc == OPAL_BUSY_EVENT)
++		if (rc == OPAL_BUSY_EVENT) {
++			mdelay(OPAL_BUSY_DELAY_MS);
+ 			opal_poll_events(NULL);
+-		else if (rc == OPAL_BUSY)
+-			mdelay(10);
++		} else if (rc == OPAL_BUSY) {
++			mdelay(OPAL_BUSY_DELAY_MS);
++		}
+ 	}
+ 	if (rc != OPAL_SUCCESS)
+ 		return 0;
+diff --git a/arch/x86/include/uapi/asm/msgbuf.h b/arch/x86/include/uapi/asm/msgbuf.h
+index 809134c644a6..90ab9a795b49 100644
+--- a/arch/x86/include/uapi/asm/msgbuf.h
++++ b/arch/x86/include/uapi/asm/msgbuf.h
+@@ -1 +1,32 @@
++/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
++#ifndef __ASM_X64_MSGBUF_H
++#define __ASM_X64_MSGBUF_H
++
++#if !defined(__x86_64__) || !defined(__ILP32__)
+ #include <asm-generic/msgbuf.h>
++#else
++/*
++ * The msqid64_ds structure for x86 architecture with x32 ABI.
++ *
++ * On x86-32 and x86-64 we can just use the generic definition, but
++ * x32 uses the same binary layout as x86_64, which is differnet
++ * from other 32-bit architectures.
++ */
++
++struct msqid64_ds {
++	struct ipc64_perm msg_perm;
++	__kernel_time_t msg_stime;	/* last msgsnd time */
++	__kernel_time_t msg_rtime;	/* last msgrcv time */
++	__kernel_time_t msg_ctime;	/* last change time */
++	__kernel_ulong_t msg_cbytes;	/* current number of bytes on queue */
++	__kernel_ulong_t msg_qnum;	/* number of messages in queue */
++	__kernel_ulong_t msg_qbytes;	/* max number of bytes on queue */
++	__kernel_pid_t msg_lspid;	/* pid of last msgsnd */
++	__kernel_pid_t msg_lrpid;	/* last receive pid */
++	__kernel_ulong_t __unused4;
++	__kernel_ulong_t __unused5;
++};
++
++#endif
++
++#endif /* __ASM_GENERIC_MSGBUF_H */
+diff --git a/arch/x86/include/uapi/asm/shmbuf.h b/arch/x86/include/uapi/asm/shmbuf.h
+index 83c05fc2de38..644421f3823b 100644
+--- a/arch/x86/include/uapi/asm/shmbuf.h
++++ b/arch/x86/include/uapi/asm/shmbuf.h
+@@ -1 +1,43 @@
++/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
++#ifndef __ASM_X86_SHMBUF_H
++#define __ASM_X86_SHMBUF_H
++
++#if !defined(__x86_64__) || !defined(__ILP32__)
+ #include <asm-generic/shmbuf.h>
++#else
++/*
++ * The shmid64_ds structure for x86 architecture with x32 ABI.
++ *
++ * On x86-32 and x86-64 we can just use the generic definition, but
++ * x32 uses the same binary layout as x86_64, which is differnet
++ * from other 32-bit architectures.
++ */
++
++struct shmid64_ds {
++	struct ipc64_perm	shm_perm;	/* operation perms */
++	size_t			shm_segsz;	/* size of segment (bytes) */
++	__kernel_time_t		shm_atime;	/* last attach time */
++	__kernel_time_t		shm_dtime;	/* last detach time */
++	__kernel_time_t		shm_ctime;	/* last change time */
++	__kernel_pid_t		shm_cpid;	/* pid of creator */
++	__kernel_pid_t		shm_lpid;	/* pid of last operator */
++	__kernel_ulong_t	shm_nattch;	/* no. of current attaches */
++	__kernel_ulong_t	__unused4;
++	__kernel_ulong_t	__unused5;
++};
++
++struct shminfo64 {
++	__kernel_ulong_t	shmmax;
++	__kernel_ulong_t	shmmin;
++	__kernel_ulong_t	shmmni;
++	__kernel_ulong_t	shmseg;
++	__kernel_ulong_t	shmall;
++	__kernel_ulong_t	__unused1;
++	__kernel_ulong_t	__unused2;
++	__kernel_ulong_t	__unused3;
++	__kernel_ulong_t	__unused4;
++};
++
++#endif
++
++#endif /* __ASM_X86_SHMBUF_H */
+diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
+index 021c90464cc2..c8e0cda0f272 100644
+--- a/arch/x86/kernel/cpu/microcode/core.c
++++ b/arch/x86/kernel/cpu/microcode/core.c
+@@ -564,14 +564,12 @@ static int __reload_late(void *info)
+ 	apply_microcode_local(&err);
+ 	spin_unlock(&update_lock);
+ 
++	/* siblings return UCODE_OK because their engine got updated already */
+ 	if (err > UCODE_NFOUND) {
+ 		pr_warn("Error reloading microcode on CPU %d\n", cpu);
+-		return -1;
+-	/* siblings return UCODE_OK because their engine got updated already */
++		ret = -1;
+ 	} else if (err == UCODE_UPDATED || err == UCODE_OK) {
+ 		ret = 1;
+-	} else {
+-		return ret;
+ 	}
+ 
+ 	/*
+diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
+index 32b8e5724f96..1c2cfa0644aa 100644
+--- a/arch/x86/kernel/cpu/microcode/intel.c
++++ b/arch/x86/kernel/cpu/microcode/intel.c
+@@ -485,7 +485,6 @@ static void show_saved_mc(void)
+  */
+ static void save_mc_for_early(u8 *mc, unsigned int size)
+ {
+-#ifdef CONFIG_HOTPLUG_CPU
+ 	/* Synchronization during CPU hotplug. */
+ 	static DEFINE_MUTEX(x86_cpu_microcode_mutex);
+ 
+@@ -495,7 +494,6 @@ static void save_mc_for_early(u8 *mc, unsigned int size)
+ 	show_saved_mc();
+ 
+ 	mutex_unlock(&x86_cpu_microcode_mutex);
+-#endif
+ }
+ 
+ static bool load_builtin_intel_microcode(struct cpio_data *cp)
+diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
+index 2651ca2112c4..6b841262b790 100644
+--- a/arch/x86/kernel/smpboot.c
++++ b/arch/x86/kernel/smpboot.c
+@@ -1613,6 +1613,8 @@ static inline void mwait_play_dead(void)
+ 	void *mwait_ptr;
+ 	int i;
+ 
++	if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD)
++		return;
+ 	if (!this_cpu_has(X86_FEATURE_MWAIT))
+ 		return;
+ 	if (!this_cpu_has(X86_FEATURE_CLFLUSH))
+diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
+index 0f860cf0d56d..56c9cd01fd1d 100644
+--- a/block/bfq-iosched.c
++++ b/block/bfq-iosched.c
+@@ -4447,8 +4447,16 @@ static void bfq_prepare_request(struct request *rq, struct bio *bio)
+ 	bool new_queue = false;
+ 	bool bfqq_already_existing = false, split = false;
+ 
+-	if (!rq->elv.icq)
++	/*
++	 * Even if we don't have an icq attached, we should still clear
++	 * the scheduler pointers, as they might point to previously
++	 * allocated bic/bfqq structs.
++	 */
++	if (!rq->elv.icq) {
++		rq->elv.priv[0] = rq->elv.priv[1] = NULL;
+ 		return;
++	}
++
+ 	bic = icq_to_bic(rq->elv.icq);
+ 
+ 	spin_lock_irq(&bfqd->lock);
+diff --git a/crypto/drbg.c b/crypto/drbg.c
+index 70018397e59a..6c3221313753 100644
+--- a/crypto/drbg.c
++++ b/crypto/drbg.c
+@@ -1134,8 +1134,10 @@ static inline void drbg_dealloc_state(struct drbg_state *drbg)
+ 	if (!drbg)
+ 		return;
+ 	kzfree(drbg->Vbuf);
++	drbg->Vbuf = NULL;
+ 	drbg->V = NULL;
+ 	kzfree(drbg->Cbuf);
++	drbg->Cbuf = NULL;
+ 	drbg->C = NULL;
+ 	kzfree(drbg->scratchpadbuf);
+ 	drbg->scratchpadbuf = NULL;
+diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
+index e0f74ddc22b7..8a99fbe5759f 100644
+--- a/drivers/amba/bus.c
++++ b/drivers/amba/bus.c
+@@ -69,11 +69,12 @@ static ssize_t driver_override_show(struct device *_dev,
+ 				    struct device_attribute *attr, char *buf)
+ {
+ 	struct amba_device *dev = to_amba_device(_dev);
++	ssize_t len;
+ 
+-	if (!dev->driver_override)
+-		return 0;
+-
+-	return sprintf(buf, "%s\n", dev->driver_override);
++	device_lock(_dev);
++	len = sprintf(buf, "%s\n", dev->driver_override);
++	device_unlock(_dev);
++	return len;
+ }
+ 
+ static ssize_t driver_override_store(struct device *_dev,
+@@ -81,9 +82,10 @@ static ssize_t driver_override_store(struct device *_dev,
+ 				     const char *buf, size_t count)
+ {
+ 	struct amba_device *dev = to_amba_device(_dev);
+-	char *driver_override, *old = dev->driver_override, *cp;
++	char *driver_override, *old, *cp;
+ 
+-	if (count > PATH_MAX)
++	/* We need to keep extra room for a newline */
++	if (count >= (PAGE_SIZE - 1))
+ 		return -EINVAL;
+ 
+ 	driver_override = kstrndup(buf, count, GFP_KERNEL);
+@@ -94,12 +96,15 @@ static ssize_t driver_override_store(struct device *_dev,
+ 	if (cp)
+ 		*cp = '\0';
+ 
++	device_lock(_dev);
++	old = dev->driver_override;
+ 	if (strlen(driver_override)) {
+ 		dev->driver_override = driver_override;
+ 	} else {
+ 	       kfree(driver_override);
+ 	       dev->driver_override = NULL;
+ 	}
++	device_unlock(_dev);
+ 
+ 	kfree(old);
+ 
+diff --git a/drivers/android/binder.c b/drivers/android/binder.c
+index b7efdc8badee..a86c27948fca 100644
+--- a/drivers/android/binder.c
++++ b/drivers/android/binder.c
+@@ -2785,6 +2785,14 @@ static void binder_transaction(struct binder_proc *proc,
+ 			else
+ 				return_error = BR_DEAD_REPLY;
+ 			mutex_unlock(&context->context_mgr_node_lock);
++			if (target_node && target_proc == proc) {
++				binder_user_error("%d:%d got transaction to context manager from process owning it\n",
++						  proc->pid, thread->pid);
++				return_error = BR_FAILED_REPLY;
++				return_error_param = -EINVAL;
++				return_error_line = __LINE__;
++				goto err_invalid_target_handle;
++			}
+ 		}
+ 		if (!target_node) {
+ 			/*
+diff --git a/drivers/char/random.c b/drivers/char/random.c
+index 58a2ff7df392..ddc493d976fd 100644
+--- a/drivers/char/random.c
++++ b/drivers/char/random.c
+@@ -261,6 +261,7 @@
+ #include <linux/ptrace.h>
+ #include <linux/workqueue.h>
+ #include <linux/irq.h>
++#include <linux/ratelimit.h>
+ #include <linux/syscalls.h>
+ #include <linux/completion.h>
+ #include <linux/uuid.h>
+@@ -438,6 +439,16 @@ static void _crng_backtrack_protect(struct crng_state *crng,
+ static void process_random_ready_list(void);
+ static void _get_random_bytes(void *buf, int nbytes);
+ 
++static struct ratelimit_state unseeded_warning =
++	RATELIMIT_STATE_INIT("warn_unseeded_randomness", HZ, 3);
++static struct ratelimit_state urandom_warning =
++	RATELIMIT_STATE_INIT("warn_urandom_randomness", HZ, 3);
++
++static int ratelimit_disable __read_mostly;
++
++module_param_named(ratelimit_disable, ratelimit_disable, int, 0644);
++MODULE_PARM_DESC(ratelimit_disable, "Disable random ratelimit suppression");
++
+ /**********************************************************************
+  *
+  * OS independent entropy store.   Here are the functions which handle
+@@ -787,6 +798,39 @@ static void crng_initialize(struct crng_state *crng)
+ 	crng->init_time = jiffies - CRNG_RESEED_INTERVAL - 1;
+ }
+ 
++#ifdef CONFIG_NUMA
++static void do_numa_crng_init(struct work_struct *work)
++{
++	int i;
++	struct crng_state *crng;
++	struct crng_state **pool;
++
++	pool = kcalloc(nr_node_ids, sizeof(*pool), GFP_KERNEL|__GFP_NOFAIL);
++	for_each_online_node(i) {
++		crng = kmalloc_node(sizeof(struct crng_state),
++				    GFP_KERNEL | __GFP_NOFAIL, i);
++		spin_lock_init(&crng->lock);
++		crng_initialize(crng);
++		pool[i] = crng;
++	}
++	mb();
++	if (cmpxchg(&crng_node_pool, NULL, pool)) {
++		for_each_node(i)
++			kfree(pool[i]);
++		kfree(pool);
++	}
++}
++
++static DECLARE_WORK(numa_crng_init_work, do_numa_crng_init);
++
++static void numa_crng_init(void)
++{
++	schedule_work(&numa_crng_init_work);
++}
++#else
++static void numa_crng_init(void) {}
++#endif
++
+ /*
+  * crng_fast_load() can be called by code in the interrupt service
+  * path.  So we can't afford to dilly-dally.
+@@ -893,10 +937,23 @@ static void crng_reseed(struct crng_state *crng, struct entropy_store *r)
+ 	spin_unlock_irqrestore(&crng->lock, flags);
+ 	if (crng == &primary_crng && crng_init < 2) {
+ 		invalidate_batched_entropy();
++		numa_crng_init();
+ 		crng_init = 2;
+ 		process_random_ready_list();
+ 		wake_up_interruptible(&crng_init_wait);
+ 		pr_notice("random: crng init done\n");
++		if (unseeded_warning.missed) {
++			pr_notice("random: %d get_random_xx warning(s) missed "
++				  "due to ratelimiting\n",
++				  unseeded_warning.missed);
++			unseeded_warning.missed = 0;
++		}
++		if (urandom_warning.missed) {
++			pr_notice("random: %d urandom warning(s) missed "
++				  "due to ratelimiting\n",
++				  urandom_warning.missed);
++			urandom_warning.missed = 0;
++		}
+ 	}
+ }
+ 
+@@ -1540,8 +1597,9 @@ static void _warn_unseeded_randomness(const char *func_name, void *caller,
+ #ifndef CONFIG_WARN_ALL_UNSEEDED_RANDOM
+ 	print_once = true;
+ #endif
+-	pr_notice("random: %s called from %pS with crng_init=%d\n",
+-		  func_name, caller, crng_init);
++	if (__ratelimit(&unseeded_warning))
++		pr_notice("random: %s called from %pS with crng_init=%d\n",
++			  func_name, caller, crng_init);
+ }
+ 
+ /*
+@@ -1731,29 +1789,14 @@ static void init_std_data(struct entropy_store *r)
+  */
+ static int rand_initialize(void)
+ {
+-#ifdef CONFIG_NUMA
+-	int i;
+-	struct crng_state *crng;
+-	struct crng_state **pool;
+-#endif
+-
+ 	init_std_data(&input_pool);
+ 	init_std_data(&blocking_pool);
+ 	crng_initialize(&primary_crng);
+ 	crng_global_init_time = jiffies;
+-
+-#ifdef CONFIG_NUMA
+-	pool = kcalloc(nr_node_ids, sizeof(*pool), GFP_KERNEL|__GFP_NOFAIL);
+-	for_each_online_node(i) {
+-		crng = kmalloc_node(sizeof(struct crng_state),
+-				    GFP_KERNEL | __GFP_NOFAIL, i);
+-		spin_lock_init(&crng->lock);
+-		crng_initialize(crng);
+-		pool[i] = crng;
++	if (ratelimit_disable) {
++		urandom_warning.interval = 0;
++		unseeded_warning.interval = 0;
+ 	}
+-	mb();
+-	crng_node_pool = pool;
+-#endif
+ 	return 0;
+ }
+ early_initcall(rand_initialize);
+@@ -1821,9 +1864,10 @@ urandom_read(struct file *file, char __user *buf, size_t nbytes, loff_t *ppos)
+ 
+ 	if (!crng_ready() && maxwarn > 0) {
+ 		maxwarn--;
+-		printk(KERN_NOTICE "random: %s: uninitialized urandom read "
+-		       "(%zd bytes read)\n",
+-		       current->comm, nbytes);
++		if (__ratelimit(&urandom_warning))
++			printk(KERN_NOTICE "random: %s: uninitialized "
++			       "urandom read (%zd bytes read)\n",
++			       current->comm, nbytes);
+ 		spin_lock_irqsave(&primary_crng.lock, flags);
+ 		crng_init_cnt = 0;
+ 		spin_unlock_irqrestore(&primary_crng.lock, flags);
+diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
+index d1aed2513bd9..a089474cb046 100644
+--- a/drivers/char/virtio_console.c
++++ b/drivers/char/virtio_console.c
+@@ -422,7 +422,7 @@ static void reclaim_dma_bufs(void)
+ 	}
+ }
+ 
+-static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size,
++static struct port_buffer *alloc_buf(struct virtio_device *vdev, size_t buf_size,
+ 				     int pages)
+ {
+ 	struct port_buffer *buf;
+@@ -445,16 +445,16 @@ static struct port_buffer *alloc_buf(struct virtqueue *vq, size_t buf_size,
+ 		return buf;
+ 	}
+ 
+-	if (is_rproc_serial(vq->vdev)) {
++	if (is_rproc_serial(vdev)) {
+ 		/*
+ 		 * Allocate DMA memory from ancestor. When a virtio
+ 		 * device is created by remoteproc, the DMA memory is
+ 		 * associated with the grandparent device:
+ 		 * vdev => rproc => platform-dev.
+ 		 */
+-		if (!vq->vdev->dev.parent || !vq->vdev->dev.parent->parent)
++		if (!vdev->dev.parent || !vdev->dev.parent->parent)
+ 			goto free_buf;
+-		buf->dev = vq->vdev->dev.parent->parent;
++		buf->dev = vdev->dev.parent->parent;
+ 
+ 		/* Increase device refcnt to avoid freeing it */
+ 		get_device(buf->dev);
+@@ -838,7 +838,7 @@ static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
+ 
+ 	count = min((size_t)(32 * 1024), count);
+ 
+-	buf = alloc_buf(port->out_vq, count, 0);
++	buf = alloc_buf(port->portdev->vdev, count, 0);
+ 	if (!buf)
+ 		return -ENOMEM;
+ 
+@@ -957,7 +957,7 @@ static ssize_t port_fops_splice_write(struct pipe_inode_info *pipe,
+ 	if (ret < 0)
+ 		goto error_out;
+ 
+-	buf = alloc_buf(port->out_vq, 0, pipe->nrbufs);
++	buf = alloc_buf(port->portdev->vdev, 0, pipe->nrbufs);
+ 	if (!buf) {
+ 		ret = -ENOMEM;
+ 		goto error_out;
+@@ -1374,7 +1374,7 @@ static unsigned int fill_queue(struct virtqueue *vq, spinlock_t *lock)
+ 
+ 	nr_added_bufs = 0;
+ 	do {
+-		buf = alloc_buf(vq, PAGE_SIZE, 0);
++		buf = alloc_buf(vq->vdev, PAGE_SIZE, 0);
+ 		if (!buf)
+ 			break;
+ 
+@@ -1402,7 +1402,6 @@ static int add_port(struct ports_device *portdev, u32 id)
+ {
+ 	char debugfs_name[16];
+ 	struct port *port;
+-	struct port_buffer *buf;
+ 	dev_t devt;
+ 	unsigned int nr_added_bufs;
+ 	int err;
+@@ -1513,8 +1512,6 @@ static int add_port(struct ports_device *portdev, u32 id)
+ 	return 0;
+ 
+ free_inbufs:
+-	while ((buf = virtqueue_detach_unused_buf(port->in_vq)))
+-		free_buf(buf, true);
+ free_device:
+ 	device_destroy(pdrvdata.class, port->dev->devt);
+ free_cdev:
+@@ -1539,34 +1536,14 @@ static void remove_port(struct kref *kref)
+ 
+ static void remove_port_data(struct port *port)
+ {
+-	struct port_buffer *buf;
+-
+ 	spin_lock_irq(&port->inbuf_lock);
+ 	/* Remove unused data this port might have received. */
+ 	discard_port_data(port);
+ 	spin_unlock_irq(&port->inbuf_lock);
+ 
+-	/* Remove buffers we queued up for the Host to send us data in. */
+-	do {
+-		spin_lock_irq(&port->inbuf_lock);
+-		buf = virtqueue_detach_unused_buf(port->in_vq);
+-		spin_unlock_irq(&port->inbuf_lock);
+-		if (buf)
+-			free_buf(buf, true);
+-	} while (buf);
+-
+ 	spin_lock_irq(&port->outvq_lock);
+ 	reclaim_consumed_buffers(port);
+ 	spin_unlock_irq(&port->outvq_lock);
+-
+-	/* Free pending buffers from the out-queue. */
+-	do {
+-		spin_lock_irq(&port->outvq_lock);
+-		buf = virtqueue_detach_unused_buf(port->out_vq);
+-		spin_unlock_irq(&port->outvq_lock);
+-		if (buf)
+-			free_buf(buf, true);
+-	} while (buf);
+ }
+ 
+ /*
+@@ -1791,13 +1768,24 @@ static void control_work_handler(struct work_struct *work)
+ 	spin_unlock(&portdev->c_ivq_lock);
+ }
+ 
++static void flush_bufs(struct virtqueue *vq, bool can_sleep)
++{
++	struct port_buffer *buf;
++	unsigned int len;
++
++	while ((buf = virtqueue_get_buf(vq, &len)))
++		free_buf(buf, can_sleep);
++}
++
+ static void out_intr(struct virtqueue *vq)
+ {
+ 	struct port *port;
+ 
+ 	port = find_port_by_vq(vq->vdev->priv, vq);
+-	if (!port)
++	if (!port) {
++		flush_bufs(vq, false);
+ 		return;
++	}
+ 
+ 	wake_up_interruptible(&port->waitqueue);
+ }
+@@ -1808,8 +1796,10 @@ static void in_intr(struct virtqueue *vq)
+ 	unsigned long flags;
+ 
+ 	port = find_port_by_vq(vq->vdev->priv, vq);
+-	if (!port)
++	if (!port) {
++		flush_bufs(vq, false);
+ 		return;
++	}
+ 
+ 	spin_lock_irqsave(&port->inbuf_lock, flags);
+ 	port->inbuf = get_inbuf(port);
+@@ -1984,24 +1974,54 @@ static const struct file_operations portdev_fops = {
+ 
+ static void remove_vqs(struct ports_device *portdev)
+ {
++	struct virtqueue *vq;
++
++	virtio_device_for_each_vq(portdev->vdev, vq) {
++		struct port_buffer *buf;
++
++		flush_bufs(vq, true);
++		while ((buf = virtqueue_detach_unused_buf(vq)))
++			free_buf(buf, true);
++	}
+ 	portdev->vdev->config->del_vqs(portdev->vdev);
+ 	kfree(portdev->in_vqs);
+ 	kfree(portdev->out_vqs);
+ }
+ 
+-static void remove_controlq_data(struct ports_device *portdev)
++static void virtcons_remove(struct virtio_device *vdev)
+ {
+-	struct port_buffer *buf;
+-	unsigned int len;
++	struct ports_device *portdev;
++	struct port *port, *port2;
+ 
+-	if (!use_multiport(portdev))
+-		return;
++	portdev = vdev->priv;
+ 
+-	while ((buf = virtqueue_get_buf(portdev->c_ivq, &len)))
+-		free_buf(buf, true);
++	spin_lock_irq(&pdrvdata_lock);
++	list_del(&portdev->list);
++	spin_unlock_irq(&pdrvdata_lock);
+ 
+-	while ((buf = virtqueue_detach_unused_buf(portdev->c_ivq)))
+-		free_buf(buf, true);
++	/* Disable interrupts for vqs */
++	vdev->config->reset(vdev);
++	/* Finish up work that's lined up */
++	if (use_multiport(portdev))
++		cancel_work_sync(&portdev->control_work);
++	else
++		cancel_work_sync(&portdev->config_work);
++
++	list_for_each_entry_safe(port, port2, &portdev->ports, list)
++		unplug_port(port);
++
++	unregister_chrdev(portdev->chr_major, "virtio-portsdev");
++
++	/*
++	 * When yanking out a device, we immediately lose the
++	 * (device-side) queues.  So there's no point in keeping the
++	 * guest side around till we drop our final reference.  This
++	 * also means that any ports which are in an open state will
++	 * have to just stop using the port, as the vqs are going
++	 * away.
++	 */
++	remove_vqs(portdev);
++	kfree(portdev);
+ }
+ 
+ /*
+@@ -2070,6 +2090,7 @@ static int virtcons_probe(struct virtio_device *vdev)
+ 
+ 	spin_lock_init(&portdev->ports_lock);
+ 	INIT_LIST_HEAD(&portdev->ports);
++	INIT_LIST_HEAD(&portdev->list);
+ 
+ 	virtio_device_ready(portdev->vdev);
+ 
+@@ -2087,8 +2108,15 @@ static int virtcons_probe(struct virtio_device *vdev)
+ 		if (!nr_added_bufs) {
+ 			dev_err(&vdev->dev,
+ 				"Error allocating buffers for control queue\n");
+-			err = -ENOMEM;
+-			goto free_vqs;
++			/*
++			 * The host might want to notify mgmt sw about device
++			 * add failure.
++			 */
++			__send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID,
++					   VIRTIO_CONSOLE_DEVICE_READY, 0);
++			/* Device was functional: we need full cleanup. */
++			virtcons_remove(vdev);
++			return -ENOMEM;
+ 		}
+ 	} else {
+ 		/*
+@@ -2119,11 +2147,6 @@ static int virtcons_probe(struct virtio_device *vdev)
+ 
+ 	return 0;
+ 
+-free_vqs:
+-	/* The host might want to notify mgmt sw about device add failure */
+-	__send_control_msg(portdev, VIRTIO_CONSOLE_BAD_ID,
+-			   VIRTIO_CONSOLE_DEVICE_READY, 0);
+-	remove_vqs(portdev);
+ free_chrdev:
+ 	unregister_chrdev(portdev->chr_major, "virtio-portsdev");
+ free:
+@@ -2132,43 +2155,6 @@ static int virtcons_probe(struct virtio_device *vdev)
+ 	return err;
+ }
+ 
+-static void virtcons_remove(struct virtio_device *vdev)
+-{
+-	struct ports_device *portdev;
+-	struct port *port, *port2;
+-
+-	portdev = vdev->priv;
+-
+-	spin_lock_irq(&pdrvdata_lock);
+-	list_del(&portdev->list);
+-	spin_unlock_irq(&pdrvdata_lock);
+-
+-	/* Disable interrupts for vqs */
+-	vdev->config->reset(vdev);
+-	/* Finish up work that's lined up */
+-	if (use_multiport(portdev))
+-		cancel_work_sync(&portdev->control_work);
+-	else
+-		cancel_work_sync(&portdev->config_work);
+-
+-	list_for_each_entry_safe(port, port2, &portdev->ports, list)
+-		unplug_port(port);
+-
+-	unregister_chrdev(portdev->chr_major, "virtio-portsdev");
+-
+-	/*
+-	 * When yanking out a device, we immediately lose the
+-	 * (device-side) queues.  So there's no point in keeping the
+-	 * guest side around till we drop our final reference.  This
+-	 * also means that any ports which are in an open state will
+-	 * have to just stop using the port, as the vqs are going
+-	 * away.
+-	 */
+-	remove_controlq_data(portdev);
+-	remove_vqs(portdev);
+-	kfree(portdev);
+-}
+-
+ static struct virtio_device_id id_table[] = {
+ 	{ VIRTIO_ID_CONSOLE, VIRTIO_DEV_ANY_ID },
+ 	{ 0 },
+@@ -2209,7 +2195,6 @@ static int virtcons_freeze(struct virtio_device *vdev)
+ 	 */
+ 	if (use_multiport(portdev))
+ 		virtqueue_disable_cb(portdev->c_ivq);
+-	remove_controlq_data(portdev);
+ 
+ 	list_for_each_entry(port, &portdev->ports, list) {
+ 		virtqueue_disable_cb(port->in_vq);
+diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
+index 6b3a63545619..a28bb8f3f395 100644
+--- a/drivers/cpufreq/powernv-cpufreq.c
++++ b/drivers/cpufreq/powernv-cpufreq.c
+@@ -646,6 +646,16 @@ void gpstate_timer_handler(unsigned long data)
+ 
+ 	if (!spin_trylock(&gpstates->gpstate_lock))
+ 		return;
++	/*
++	 * If the timer has migrated to the different cpu then bring
++	 * it back to one of the policy->cpus
++	 */
++	if (!cpumask_test_cpu(raw_smp_processor_id(), policy->cpus)) {
++		gpstates->timer.expires = jiffies + msecs_to_jiffies(1);
++		add_timer_on(&gpstates->timer, cpumask_first(policy->cpus));
++		spin_unlock(&gpstates->gpstate_lock);
++		return;
++	}
+ 
+ 	/*
+ 	 * If PMCR was last updated was using fast_swtich then
+@@ -685,10 +695,8 @@ void gpstate_timer_handler(unsigned long data)
+ 	if (gpstate_idx != gpstates->last_lpstate_idx)
+ 		queue_gpstate_timer(gpstates);
+ 
++	set_pstate(&freq_data);
+ 	spin_unlock(&gpstates->gpstate_lock);
+-
+-	/* Timer may get migrated to a different cpu on cpu hot unplug */
+-	smp_call_function_any(policy->cpus, set_pstate, &freq_data, 1);
+ }
+ 
+ /*
+diff --git a/drivers/fpga/altera-ps-spi.c b/drivers/fpga/altera-ps-spi.c
+index 14f14efdf0d5..06d212a3d49d 100644
+--- a/drivers/fpga/altera-ps-spi.c
++++ b/drivers/fpga/altera-ps-spi.c
+@@ -249,7 +249,7 @@ static int altera_ps_probe(struct spi_device *spi)
+ 
+ 	conf->data = of_id->data;
+ 	conf->spi = spi;
+-	conf->config = devm_gpiod_get(&spi->dev, "nconfig", GPIOD_OUT_HIGH);
++	conf->config = devm_gpiod_get(&spi->dev, "nconfig", GPIOD_OUT_LOW);
+ 	if (IS_ERR(conf->config)) {
+ 		dev_err(&spi->dev, "Failed to get config gpio: %ld\n",
+ 			PTR_ERR(conf->config));
+diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+index fc260c13b1da..a7e54820a330 100644
+--- a/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
++++ b/drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c
+@@ -1398,10 +1398,11 @@ static const u32 sgpr_init_compute_shader[] =
+ static const u32 vgpr_init_regs[] =
+ {
+ 	mmCOMPUTE_STATIC_THREAD_MGMT_SE0, 0xffffffff,
+-	mmCOMPUTE_RESOURCE_LIMITS, 0,
++	mmCOMPUTE_RESOURCE_LIMITS, 0x1000000, /* CU_GROUP_COUNT=1 */
+ 	mmCOMPUTE_NUM_THREAD_X, 256*4,
+ 	mmCOMPUTE_NUM_THREAD_Y, 1,
+ 	mmCOMPUTE_NUM_THREAD_Z, 1,
++	mmCOMPUTE_PGM_RSRC1, 0x100004f, /* VGPRS=15 (64 logical VGPRs), SGPRS=1 (16 SGPRs), BULKY=1 */
+ 	mmCOMPUTE_PGM_RSRC2, 20,
+ 	mmCOMPUTE_USER_DATA_0, 0xedcedc00,
+ 	mmCOMPUTE_USER_DATA_1, 0xedcedc01,
+@@ -1418,10 +1419,11 @@ static const u32 vgpr_init_regs[] =
+ static const u32 sgpr1_init_regs[] =
+ {
+ 	mmCOMPUTE_STATIC_THREAD_MGMT_SE0, 0x0f,
+-	mmCOMPUTE_RESOURCE_LIMITS, 0x1000000,
++	mmCOMPUTE_RESOURCE_LIMITS, 0x1000000, /* CU_GROUP_COUNT=1 */
+ 	mmCOMPUTE_NUM_THREAD_X, 256*5,
+ 	mmCOMPUTE_NUM_THREAD_Y, 1,
+ 	mmCOMPUTE_NUM_THREAD_Z, 1,
++	mmCOMPUTE_PGM_RSRC1, 0x240, /* SGPRS=9 (80 GPRS) */
+ 	mmCOMPUTE_PGM_RSRC2, 20,
+ 	mmCOMPUTE_USER_DATA_0, 0xedcedc00,
+ 	mmCOMPUTE_USER_DATA_1, 0xedcedc01,
+@@ -1442,6 +1444,7 @@ static const u32 sgpr2_init_regs[] =
+ 	mmCOMPUTE_NUM_THREAD_X, 256*5,
+ 	mmCOMPUTE_NUM_THREAD_Y, 1,
+ 	mmCOMPUTE_NUM_THREAD_Z, 1,
++	mmCOMPUTE_PGM_RSRC1, 0x240, /* SGPRS=9 (80 GPRS) */
+ 	mmCOMPUTE_PGM_RSRC2, 20,
+ 	mmCOMPUTE_USER_DATA_0, 0xedcedc00,
+ 	mmCOMPUTE_USER_DATA_1, 0xedcedc01,
+diff --git a/drivers/gpu/drm/i915/intel_runtime_pm.c b/drivers/gpu/drm/i915/intel_runtime_pm.c
+index bcccacba1ec6..bcfc1c235966 100644
+--- a/drivers/gpu/drm/i915/intel_runtime_pm.c
++++ b/drivers/gpu/drm/i915/intel_runtime_pm.c
+@@ -622,19 +622,18 @@ void skl_enable_dc6(struct drm_i915_private *dev_priv)
+ 
+ 	DRM_DEBUG_KMS("Enabling DC6\n");
+ 
+-	gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
++	/* Wa Display #1183: skl,kbl,cfl */
++	if (IS_GEN9_BC(dev_priv))
++		I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
++			   SKL_SELECT_ALTERNATE_DC_EXIT);
+ 
++	gen9_set_dc_state(dev_priv, DC_STATE_EN_UPTO_DC6);
+ }
+ 
+ void skl_disable_dc6(struct drm_i915_private *dev_priv)
+ {
+ 	DRM_DEBUG_KMS("Disabling DC6\n");
+ 
+-	/* Wa Display #1183: skl,kbl,cfl */
+-	if (IS_GEN9_BC(dev_priv))
+-		I915_WRITE(GEN8_CHICKEN_DCPR_1, I915_READ(GEN8_CHICKEN_DCPR_1) |
+-			   SKL_SELECT_ALTERNATE_DC_EXIT);
+-
+ 	gen9_set_dc_state(dev_priv, DC_STATE_DISABLE);
+ }
+ 
+diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c
+index 9eb96fb2c147..26a2da1f712d 100644
+--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
++++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
+@@ -291,7 +291,7 @@ static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev,
+ 	ret = virtqueue_add_sgs(vq, sgs, outcnt, incnt, vbuf, GFP_ATOMIC);
+ 	if (ret == -ENOSPC) {
+ 		spin_unlock(&vgdev->ctrlq.qlock);
+-		wait_event(vgdev->ctrlq.ack_queue, vq->num_free);
++		wait_event(vgdev->ctrlq.ack_queue, vq->num_free >= outcnt + incnt);
+ 		spin_lock(&vgdev->ctrlq.qlock);
+ 		goto retry;
+ 	} else {
+@@ -366,7 +366,7 @@ static int virtio_gpu_queue_cursor(struct virtio_gpu_device *vgdev,
+ 	ret = virtqueue_add_sgs(vq, sgs, outcnt, 0, vbuf, GFP_ATOMIC);
+ 	if (ret == -ENOSPC) {
+ 		spin_unlock(&vgdev->cursorq.qlock);
+-		wait_event(vgdev->cursorq.ack_queue, vq->num_free);
++		wait_event(vgdev->cursorq.ack_queue, vq->num_free >= outcnt);
+ 		spin_lock(&vgdev->cursorq.qlock);
+ 		goto retry;
+ 	} else {
+diff --git a/drivers/mtd/chips/cfi_cmdset_0001.c b/drivers/mtd/chips/cfi_cmdset_0001.c
+index 5e1b68cbcd0a..e1b603ca0170 100644
+--- a/drivers/mtd/chips/cfi_cmdset_0001.c
++++ b/drivers/mtd/chips/cfi_cmdset_0001.c
+@@ -45,6 +45,7 @@
+ #define I82802AB	0x00ad
+ #define I82802AC	0x00ac
+ #define PF38F4476	0x881c
++#define M28F00AP30	0x8963
+ /* STMicroelectronics chips */
+ #define M50LPW080       0x002F
+ #define M50FLW080A	0x0080
+@@ -375,6 +376,17 @@ static void cfi_fixup_major_minor(struct cfi_private *cfi,
+ 		extp->MinorVersion = '1';
+ }
+ 
++static int cfi_is_micron_28F00AP30(struct cfi_private *cfi, struct flchip *chip)
++{
++	/*
++	 * Micron(was Numonyx) 1Gbit bottom boot are buggy w.r.t
++	 * Erase Supend for their small Erase Blocks(0x8000)
++	 */
++	if (cfi->mfr == CFI_MFR_INTEL && cfi->id == M28F00AP30)
++		return 1;
++	return 0;
++}
++
+ static inline struct cfi_pri_intelext *
+ read_pri_intelext(struct map_info *map, __u16 adr)
+ {
+@@ -831,21 +843,30 @@ static int chip_ready (struct map_info *map, struct flchip *chip, unsigned long
+ 		     (mode == FL_WRITING && (cfip->SuspendCmdSupport & 1))))
+ 			goto sleep;
+ 
++		/* Do not allow suspend iff read/write to EB address */
++		if ((adr & chip->in_progress_block_mask) ==
++		    chip->in_progress_block_addr)
++			goto sleep;
++
++		/* do not suspend small EBs, buggy Micron Chips */
++		if (cfi_is_micron_28F00AP30(cfi, chip) &&
++		    (chip->in_progress_block_mask == ~(0x8000-1)))
++			goto sleep;
+ 
+ 		/* Erase suspend */
+-		map_write(map, CMD(0xB0), adr);
++		map_write(map, CMD(0xB0), chip->in_progress_block_addr);
+ 
+ 		/* If the flash has finished erasing, then 'erase suspend'
+ 		 * appears to make some (28F320) flash devices switch to
+ 		 * 'read' mode.  Make sure that we switch to 'read status'
+ 		 * mode so we get the right data. --rmk
+ 		 */
+-		map_write(map, CMD(0x70), adr);
++		map_write(map, CMD(0x70), chip->in_progress_block_addr);
+ 		chip->oldstate = FL_ERASING;
+ 		chip->state = FL_ERASE_SUSPENDING;
+ 		chip->erase_suspended = 1;
+ 		for (;;) {
+-			status = map_read(map, adr);
++			status = map_read(map, chip->in_progress_block_addr);
+ 			if (map_word_andequal(map, status, status_OK, status_OK))
+ 			        break;
+ 
+@@ -1041,8 +1062,8 @@ static void put_chip(struct map_info *map, struct flchip *chip, unsigned long ad
+ 		   sending the 0x70 (Read Status) command to an erasing
+ 		   chip and expecting it to be ignored, that's what we
+ 		   do. */
+-		map_write(map, CMD(0xd0), adr);
+-		map_write(map, CMD(0x70), adr);
++		map_write(map, CMD(0xd0), chip->in_progress_block_addr);
++		map_write(map, CMD(0x70), chip->in_progress_block_addr);
+ 		chip->oldstate = FL_READY;
+ 		chip->state = FL_ERASING;
+ 		break;
+@@ -1933,6 +1954,8 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
+ 	map_write(map, CMD(0xD0), adr);
+ 	chip->state = FL_ERASING;
+ 	chip->erase_suspended = 0;
++	chip->in_progress_block_addr = adr;
++	chip->in_progress_block_mask = ~(len - 1);
+ 
+ 	ret = INVAL_CACHE_AND_WAIT(map, chip, adr,
+ 				   adr, len,
+diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c
+index 56aa6b75213d..d524a64ed754 100644
+--- a/drivers/mtd/chips/cfi_cmdset_0002.c
++++ b/drivers/mtd/chips/cfi_cmdset_0002.c
+@@ -816,9 +816,10 @@ static int get_chip(struct map_info *map, struct flchip *chip, unsigned long adr
+ 		    (mode == FL_WRITING && (cfip->EraseSuspend & 0x2))))
+ 			goto sleep;
+ 
+-		/* We could check to see if we're trying to access the sector
+-		 * that is currently being erased. However, no user will try
+-		 * anything like that so we just wait for the timeout. */
++		/* Do not allow suspend iff read/write to EB address */
++		if ((adr & chip->in_progress_block_mask) ==
++		    chip->in_progress_block_addr)
++			goto sleep;
+ 
+ 		/* Erase suspend */
+ 		/* It's harmless to issue the Erase-Suspend and Erase-Resume
+@@ -2267,6 +2268,7 @@ static int __xipram do_erase_chip(struct map_info *map, struct flchip *chip)
+ 	chip->state = FL_ERASING;
+ 	chip->erase_suspended = 0;
+ 	chip->in_progress_block_addr = adr;
++	chip->in_progress_block_mask = ~(map->size - 1);
+ 
+ 	INVALIDATE_CACHE_UDELAY(map, chip,
+ 				adr, map->size,
+@@ -2356,6 +2358,7 @@ static int __xipram do_erase_oneblock(struct map_info *map, struct flchip *chip,
+ 	chip->state = FL_ERASING;
+ 	chip->erase_suspended = 0;
+ 	chip->in_progress_block_addr = adr;
++	chip->in_progress_block_mask = ~(len - 1);
+ 
+ 	INVALIDATE_CACHE_UDELAY(map, chip,
+ 				adr, len,
+diff --git a/drivers/mtd/nand/tango_nand.c b/drivers/mtd/nand/tango_nand.c
+index 766906f03943..ce366816a7ef 100644
+--- a/drivers/mtd/nand/tango_nand.c
++++ b/drivers/mtd/nand/tango_nand.c
+@@ -654,7 +654,7 @@ static int tango_nand_probe(struct platform_device *pdev)
+ 
+ 	writel_relaxed(MODE_RAW, nfc->pbus_base + PBUS_PAD_MODE);
+ 
+-	clk = clk_get(&pdev->dev, NULL);
++	clk = devm_clk_get(&pdev->dev, NULL);
+ 	if (IS_ERR(clk))
+ 		return PTR_ERR(clk);
+ 
+diff --git a/drivers/mtd/spi-nor/cadence-quadspi.c b/drivers/mtd/spi-nor/cadence-quadspi.c
+index 53c7d8e0327a..8d89204b90d2 100644
+--- a/drivers/mtd/spi-nor/cadence-quadspi.c
++++ b/drivers/mtd/spi-nor/cadence-quadspi.c
+@@ -495,7 +495,9 @@ static int cqspi_indirect_read_execute(struct spi_nor *nor,
+ 	void __iomem *reg_base = cqspi->iobase;
+ 	void __iomem *ahb_base = cqspi->ahb_base;
+ 	unsigned int remaining = n_rx;
++	unsigned int mod_bytes = n_rx % 4;
+ 	unsigned int bytes_to_read = 0;
++	u8 *rxbuf_end = rxbuf + n_rx;
+ 	int ret = 0;
+ 
+ 	writel(remaining, reg_base + CQSPI_REG_INDIRECTRDBYTES);
+@@ -523,11 +525,24 @@ static int cqspi_indirect_read_execute(struct spi_nor *nor,
+ 		}
+ 
+ 		while (bytes_to_read != 0) {
++			unsigned int word_remain = round_down(remaining, 4);
++
+ 			bytes_to_read *= cqspi->fifo_width;
+ 			bytes_to_read = bytes_to_read > remaining ?
+ 					remaining : bytes_to_read;
+-			ioread32_rep(ahb_base, rxbuf,
+-				     DIV_ROUND_UP(bytes_to_read, 4));
++			bytes_to_read = round_down(bytes_to_read, 4);
++			/* Read 4 byte word chunks then single bytes */
++			if (bytes_to_read) {
++				ioread32_rep(ahb_base, rxbuf,
++					     (bytes_to_read / 4));
++			} else if (!word_remain && mod_bytes) {
++				unsigned int temp = ioread32(ahb_base);
++
++				bytes_to_read = mod_bytes;
++				memcpy(rxbuf, &temp, min((unsigned int)
++							 (rxbuf_end - rxbuf),
++							 bytes_to_read));
++			}
+ 			rxbuf += bytes_to_read;
+ 			remaining -= bytes_to_read;
+ 			bytes_to_read = cqspi_get_rd_sram_level(cqspi);
+diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
+index ce30c9a588a4..6337c394bfe3 100644
+--- a/drivers/of/fdt.c
++++ b/drivers/of/fdt.c
+@@ -975,7 +975,7 @@ int __init early_init_dt_scan_chosen_stdout(void)
+ 	int offset;
+ 	const char *p, *q, *options = NULL;
+ 	int l;
+-	const struct earlycon_id *match;
++	const struct earlycon_id **p_match;
+ 	const void *fdt = initial_boot_params;
+ 
+ 	offset = fdt_path_offset(fdt, "/chosen");
+@@ -1002,7 +1002,10 @@ int __init early_init_dt_scan_chosen_stdout(void)
+ 		return 0;
+ 	}
+ 
+-	for (match = __earlycon_table; match < __earlycon_table_end; match++) {
++	for (p_match = __earlycon_table; p_match < __earlycon_table_end;
++	     p_match++) {
++		const struct earlycon_id *match = *p_match;
++
+ 		if (!match->compatible[0])
+ 			continue;
+ 
+diff --git a/drivers/pci/host/pci-aardvark.c b/drivers/pci/host/pci-aardvark.c
+index 26ed0c08f209..9bfc22b5da4b 100644
+--- a/drivers/pci/host/pci-aardvark.c
++++ b/drivers/pci/host/pci-aardvark.c
+@@ -32,6 +32,7 @@
+ #define     PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ_SHIFT	5
+ #define     PCIE_CORE_DEV_CTRL_STATS_SNOOP_DISABLE		(0 << 11)
+ #define     PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SIZE_SHIFT	12
++#define     PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SZ		0x2
+ #define PCIE_CORE_LINK_CTRL_STAT_REG				0xd0
+ #define     PCIE_CORE_LINK_L0S_ENTRY				BIT(0)
+ #define     PCIE_CORE_LINK_TRAINING				BIT(5)
+@@ -103,7 +104,8 @@
+ #define PCIE_ISR1_MASK_REG			(CONTROL_BASE_ADDR + 0x4C)
+ #define     PCIE_ISR1_POWER_STATE_CHANGE	BIT(4)
+ #define     PCIE_ISR1_FLUSH			BIT(5)
+-#define     PCIE_ISR1_ALL_MASK			GENMASK(5, 4)
++#define     PCIE_ISR1_INTX_ASSERT(val)		BIT(8 + (val))
++#define     PCIE_ISR1_ALL_MASK			GENMASK(11, 4)
+ #define PCIE_MSI_ADDR_LOW_REG			(CONTROL_BASE_ADDR + 0x50)
+ #define PCIE_MSI_ADDR_HIGH_REG			(CONTROL_BASE_ADDR + 0x54)
+ #define PCIE_MSI_STATUS_REG			(CONTROL_BASE_ADDR + 0x58)
+@@ -175,8 +177,6 @@
+ #define PCIE_CONFIG_WR_TYPE0			0xa
+ #define PCIE_CONFIG_WR_TYPE1			0xb
+ 
+-/* PCI_BDF shifts 8bit, so we need extra 4bit shift */
+-#define PCIE_BDF(dev)				(dev << 4)
+ #define PCIE_CONF_BUS(bus)			(((bus) & 0xff) << 20)
+ #define PCIE_CONF_DEV(dev)			(((dev) & 0x1f) << 15)
+ #define PCIE_CONF_FUNC(fun)			(((fun) & 0x7)	<< 12)
+@@ -299,7 +299,8 @@ static void advk_pcie_setup_hw(struct advk_pcie *pcie)
+ 	reg = PCIE_CORE_DEV_CTRL_STATS_RELAX_ORDER_DISABLE |
+ 		(7 << PCIE_CORE_DEV_CTRL_STATS_MAX_PAYLOAD_SZ_SHIFT) |
+ 		PCIE_CORE_DEV_CTRL_STATS_SNOOP_DISABLE |
+-		PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SIZE_SHIFT;
++		(PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SZ <<
++		 PCIE_CORE_DEV_CTRL_STATS_MAX_RD_REQ_SIZE_SHIFT);
+ 	advk_writel(pcie, reg, PCIE_CORE_DEV_CTRL_STATS_REG);
+ 
+ 	/* Program PCIe Control 2 to disable strict ordering */
+@@ -440,7 +441,7 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
+ 	u32 reg;
+ 	int ret;
+ 
+-	if (PCI_SLOT(devfn) != 0) {
++	if ((bus->number == pcie->root_bus_nr) && PCI_SLOT(devfn) != 0) {
+ 		*val = 0xffffffff;
+ 		return PCIBIOS_DEVICE_NOT_FOUND;
+ 	}
+@@ -459,7 +460,7 @@ static int advk_pcie_rd_conf(struct pci_bus *bus, u32 devfn,
+ 	advk_writel(pcie, reg, PIO_CTRL);
+ 
+ 	/* Program the address registers */
+-	reg = PCIE_BDF(devfn) | PCIE_CONF_REG(where);
++	reg = PCIE_CONF_ADDR(bus->number, devfn, where);
+ 	advk_writel(pcie, reg, PIO_ADDR_LS);
+ 	advk_writel(pcie, 0, PIO_ADDR_MS);
+ 
+@@ -494,7 +495,7 @@ static int advk_pcie_wr_conf(struct pci_bus *bus, u32 devfn,
+ 	int offset;
+ 	int ret;
+ 
+-	if (PCI_SLOT(devfn) != 0)
++	if ((bus->number == pcie->root_bus_nr) && PCI_SLOT(devfn) != 0)
+ 		return PCIBIOS_DEVICE_NOT_FOUND;
+ 
+ 	if (where % size)
+@@ -612,9 +613,9 @@ static void advk_pcie_irq_mask(struct irq_data *d)
+ 	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+ 	u32 mask;
+ 
+-	mask = advk_readl(pcie, PCIE_ISR0_MASK_REG);
+-	mask |= PCIE_ISR0_INTX_ASSERT(hwirq);
+-	advk_writel(pcie, mask, PCIE_ISR0_MASK_REG);
++	mask = advk_readl(pcie, PCIE_ISR1_MASK_REG);
++	mask |= PCIE_ISR1_INTX_ASSERT(hwirq);
++	advk_writel(pcie, mask, PCIE_ISR1_MASK_REG);
+ }
+ 
+ static void advk_pcie_irq_unmask(struct irq_data *d)
+@@ -623,9 +624,9 @@ static void advk_pcie_irq_unmask(struct irq_data *d)
+ 	irq_hw_number_t hwirq = irqd_to_hwirq(d);
+ 	u32 mask;
+ 
+-	mask = advk_readl(pcie, PCIE_ISR0_MASK_REG);
+-	mask &= ~PCIE_ISR0_INTX_ASSERT(hwirq);
+-	advk_writel(pcie, mask, PCIE_ISR0_MASK_REG);
++	mask = advk_readl(pcie, PCIE_ISR1_MASK_REG);
++	mask &= ~PCIE_ISR1_INTX_ASSERT(hwirq);
++	advk_writel(pcie, mask, PCIE_ISR1_MASK_REG);
+ }
+ 
+ static int advk_pcie_irq_map(struct irq_domain *h,
+@@ -768,29 +769,35 @@ static void advk_pcie_handle_msi(struct advk_pcie *pcie)
+ 
+ static void advk_pcie_handle_int(struct advk_pcie *pcie)
+ {
+-	u32 val, mask, status;
++	u32 isr0_val, isr0_mask, isr0_status;
++	u32 isr1_val, isr1_mask, isr1_status;
+ 	int i, virq;
+ 
+-	val = advk_readl(pcie, PCIE_ISR0_REG);
+-	mask = advk_readl(pcie, PCIE_ISR0_MASK_REG);
+-	status = val & ((~mask) & PCIE_ISR0_ALL_MASK);
++	isr0_val = advk_readl(pcie, PCIE_ISR0_REG);
++	isr0_mask = advk_readl(pcie, PCIE_ISR0_MASK_REG);
++	isr0_status = isr0_val & ((~isr0_mask) & PCIE_ISR0_ALL_MASK);
++
++	isr1_val = advk_readl(pcie, PCIE_ISR1_REG);
++	isr1_mask = advk_readl(pcie, PCIE_ISR1_MASK_REG);
++	isr1_status = isr1_val & ((~isr1_mask) & PCIE_ISR1_ALL_MASK);
+ 
+-	if (!status) {
+-		advk_writel(pcie, val, PCIE_ISR0_REG);
++	if (!isr0_status && !isr1_status) {
++		advk_writel(pcie, isr0_val, PCIE_ISR0_REG);
++		advk_writel(pcie, isr1_val, PCIE_ISR1_REG);
+ 		return;
+ 	}
+ 
+ 	/* Process MSI interrupts */
+-	if (status & PCIE_ISR0_MSI_INT_PENDING)
++	if (isr0_status & PCIE_ISR0_MSI_INT_PENDING)
+ 		advk_pcie_handle_msi(pcie);
+ 
+ 	/* Process legacy interrupts */
+ 	for (i = 0; i < PCI_NUM_INTX; i++) {
+-		if (!(status & PCIE_ISR0_INTX_ASSERT(i)))
++		if (!(isr1_status & PCIE_ISR1_INTX_ASSERT(i)))
+ 			continue;
+ 
+-		advk_writel(pcie, PCIE_ISR0_INTX_ASSERT(i),
+-			    PCIE_ISR0_REG);
++		advk_writel(pcie, PCIE_ISR1_INTX_ASSERT(i),
++			    PCIE_ISR1_REG);
+ 
+ 		virq = irq_find_mapping(pcie->irq_domain, i);
+ 		generic_handle_irq(virq);
+diff --git a/drivers/rtc/rtc-opal.c b/drivers/rtc/rtc-opal.c
+index 304e891e35fc..60f2250fd96b 100644
+--- a/drivers/rtc/rtc-opal.c
++++ b/drivers/rtc/rtc-opal.c
+@@ -57,7 +57,7 @@ static void tm_to_opal(struct rtc_time *tm, u32 *y_m_d, u64 *h_m_s_ms)
+ 
+ static int opal_get_rtc_time(struct device *dev, struct rtc_time *tm)
+ {
+-	long rc = OPAL_BUSY;
++	s64 rc = OPAL_BUSY;
+ 	int retries = 10;
+ 	u32 y_m_d;
+ 	u64 h_m_s_ms;
+@@ -66,13 +66,17 @@ static int opal_get_rtc_time(struct device *dev, struct rtc_time *tm)
+ 
+ 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
+ 		rc = opal_rtc_read(&__y_m_d, &__h_m_s_ms);
+-		if (rc == OPAL_BUSY_EVENT)
++		if (rc == OPAL_BUSY_EVENT) {
++			msleep(OPAL_BUSY_DELAY_MS);
+ 			opal_poll_events(NULL);
+-		else if (retries-- && (rc == OPAL_HARDWARE
+-				       || rc == OPAL_INTERNAL_ERROR))
+-			msleep(10);
+-		else if (rc != OPAL_BUSY && rc != OPAL_BUSY_EVENT)
+-			break;
++		} else if (rc == OPAL_BUSY) {
++			msleep(OPAL_BUSY_DELAY_MS);
++		} else if (rc == OPAL_HARDWARE || rc == OPAL_INTERNAL_ERROR) {
++			if (retries--) {
++				msleep(10); /* Wait 10ms before retry */
++				rc = OPAL_BUSY; /* go around again */
++			}
++		}
+ 	}
+ 
+ 	if (rc != OPAL_SUCCESS)
+@@ -87,21 +91,26 @@ static int opal_get_rtc_time(struct device *dev, struct rtc_time *tm)
+ 
+ static int opal_set_rtc_time(struct device *dev, struct rtc_time *tm)
+ {
+-	long rc = OPAL_BUSY;
++	s64 rc = OPAL_BUSY;
+ 	int retries = 10;
+ 	u32 y_m_d = 0;
+ 	u64 h_m_s_ms = 0;
+ 
+ 	tm_to_opal(tm, &y_m_d, &h_m_s_ms);
++
+ 	while (rc == OPAL_BUSY || rc == OPAL_BUSY_EVENT) {
+ 		rc = opal_rtc_write(y_m_d, h_m_s_ms);
+-		if (rc == OPAL_BUSY_EVENT)
++		if (rc == OPAL_BUSY_EVENT) {
++			msleep(OPAL_BUSY_DELAY_MS);
+ 			opal_poll_events(NULL);
+-		else if (retries-- && (rc == OPAL_HARDWARE
+-				       || rc == OPAL_INTERNAL_ERROR))
+-			msleep(10);
+-		else if (rc != OPAL_BUSY && rc != OPAL_BUSY_EVENT)
+-			break;
++		} else if (rc == OPAL_BUSY) {
++			msleep(OPAL_BUSY_DELAY_MS);
++		} else if (rc == OPAL_HARDWARE || rc == OPAL_INTERNAL_ERROR) {
++			if (retries--) {
++				msleep(10); /* Wait 10ms before retry */
++				rc = OPAL_BUSY; /* go around again */
++			}
++		}
+ 	}
+ 
+ 	return rc == OPAL_SUCCESS ? 0 : -EIO;
+diff --git a/drivers/s390/cio/vfio_ccw_fsm.c b/drivers/s390/cio/vfio_ccw_fsm.c
+index c30420c517b1..e96b85579f21 100644
+--- a/drivers/s390/cio/vfio_ccw_fsm.c
++++ b/drivers/s390/cio/vfio_ccw_fsm.c
+@@ -20,12 +20,12 @@ static int fsm_io_helper(struct vfio_ccw_private *private)
+ 	int ccode;
+ 	__u8 lpm;
+ 	unsigned long flags;
++	int ret;
+ 
+ 	sch = private->sch;
+ 
+ 	spin_lock_irqsave(sch->lock, flags);
+ 	private->state = VFIO_CCW_STATE_BUSY;
+-	spin_unlock_irqrestore(sch->lock, flags);
+ 
+ 	orb = cp_get_orb(&private->cp, (u32)(addr_t)sch, sch->lpm);
+ 
+@@ -38,10 +38,12 @@ static int fsm_io_helper(struct vfio_ccw_private *private)
+ 		 * Initialize device status information
+ 		 */
+ 		sch->schib.scsw.cmd.actl |= SCSW_ACTL_START_PEND;
+-		return 0;
++		ret = 0;
++		break;
+ 	case 1:		/* Status pending */
+ 	case 2:		/* Busy */
+-		return -EBUSY;
++		ret = -EBUSY;
++		break;
+ 	case 3:		/* Device/path not operational */
+ 	{
+ 		lpm = orb->cmd.lpm;
+@@ -51,13 +53,16 @@ static int fsm_io_helper(struct vfio_ccw_private *private)
+ 			sch->lpm = 0;
+ 
+ 		if (cio_update_schib(sch))
+-			return -ENODEV;
+-
+-		return sch->lpm ? -EACCES : -ENODEV;
++			ret = -ENODEV;
++		else
++			ret = sch->lpm ? -EACCES : -ENODEV;
++		break;
+ 	}
+ 	default:
+-		return ccode;
++		ret = ccode;
+ 	}
++	spin_unlock_irqrestore(sch->lock, flags);
++	return ret;
+ }
+ 
+ static void fsm_notoper(struct vfio_ccw_private *private,
+diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
+index 72db0f7d221a..2f9912de2212 100644
+--- a/drivers/scsi/sd.c
++++ b/drivers/scsi/sd.c
+@@ -2132,6 +2132,8 @@ sd_spinup_disk(struct scsi_disk *sdkp)
+ 				break;	/* standby */
+ 			if (sshdr.asc == 4 && sshdr.ascq == 0xc)
+ 				break;	/* unavailable */
++			if (sshdr.asc == 4 && sshdr.ascq == 0x1b)
++				break;	/* sanitize in progress */
+ 			/*
+ 			 * Issue command to spin up drive when not ready
+ 			 */
+diff --git a/drivers/tty/n_gsm.c b/drivers/tty/n_gsm.c
+index 7253e8d2c6d9..f46bd1af7a10 100644
+--- a/drivers/tty/n_gsm.c
++++ b/drivers/tty/n_gsm.c
+@@ -133,6 +133,9 @@ struct gsm_dlci {
+ 	struct mutex mutex;
+ 
+ 	/* Link layer */
++	int mode;
++#define DLCI_MODE_ABM		0	/* Normal Asynchronous Balanced Mode */
++#define DLCI_MODE_ADM		1	/* Asynchronous Disconnected Mode */
+ 	spinlock_t lock;	/* Protects the internal state */
+ 	struct timer_list t1;	/* Retransmit timer for SABM and UA */
+ 	int retries;
+@@ -1376,7 +1379,13 @@ static struct gsm_control *gsm_control_send(struct gsm_mux *gsm,
+ 	ctrl->data = data;
+ 	ctrl->len = clen;
+ 	gsm->pending_cmd = ctrl;
+-	gsm->cretries = gsm->n2;
++
++	/* If DLCI0 is in ADM mode skip retries, it won't respond */
++	if (gsm->dlci[0]->mode == DLCI_MODE_ADM)
++		gsm->cretries = 1;
++	else
++		gsm->cretries = gsm->n2;
++
+ 	mod_timer(&gsm->t2_timer, jiffies + gsm->t2 * HZ / 100);
+ 	gsm_control_transmit(gsm, ctrl);
+ 	spin_unlock_irqrestore(&gsm->control_lock, flags);
+@@ -1484,6 +1493,7 @@ static void gsm_dlci_t1(unsigned long data)
+ 			if (debug & 8)
+ 				pr_info("DLCI %d opening in ADM mode.\n",
+ 					dlci->addr);
++			dlci->mode = DLCI_MODE_ADM;
+ 			gsm_dlci_open(dlci);
+ 		} else {
+ 			gsm_dlci_close(dlci);
+@@ -2875,11 +2885,22 @@ static int gsmtty_modem_update(struct gsm_dlci *dlci, u8 brk)
+ static int gsm_carrier_raised(struct tty_port *port)
+ {
+ 	struct gsm_dlci *dlci = container_of(port, struct gsm_dlci, port);
++	struct gsm_mux *gsm = dlci->gsm;
++
+ 	/* Not yet open so no carrier info */
+ 	if (dlci->state != DLCI_OPEN)
+ 		return 0;
+ 	if (debug & 2)
+ 		return 1;
++
++	/*
++	 * Basic mode with control channel in ADM mode may not respond
++	 * to CMD_MSC at all and modem_rx is empty.
++	 */
++	if (gsm->encoding == 0 && gsm->dlci[0]->mode == DLCI_MODE_ADM &&
++	    !dlci->modem_rx)
++		return 1;
++
+ 	return dlci->modem_rx & TIOCM_CD;
+ }
+ 
+diff --git a/drivers/tty/serial/earlycon.c b/drivers/tty/serial/earlycon.c
+index 17dba0af5ee9..ac667b47f199 100644
+--- a/drivers/tty/serial/earlycon.c
++++ b/drivers/tty/serial/earlycon.c
+@@ -172,7 +172,7 @@ static int __init register_earlycon(char *buf, const struct earlycon_id *match)
+  */
+ int __init setup_earlycon(char *buf)
+ {
+-	const struct earlycon_id *match;
++	const struct earlycon_id **p_match;
+ 
+ 	if (!buf || !buf[0])
+ 		return -EINVAL;
+@@ -180,7 +180,9 @@ int __init setup_earlycon(char *buf)
+ 	if (early_con.flags & CON_ENABLED)
+ 		return -EALREADY;
+ 
+-	for (match = __earlycon_table; match < __earlycon_table_end; match++) {
++	for (p_match = __earlycon_table; p_match < __earlycon_table_end;
++	     p_match++) {
++		const struct earlycon_id *match = *p_match;
+ 		size_t len = strlen(match->name);
+ 
+ 		if (strncmp(buf, match->name, len))
+diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
+index 52627478ab61..562d31073f9a 100644
+--- a/drivers/tty/tty_io.c
++++ b/drivers/tty/tty_io.c
+@@ -2815,7 +2815,10 @@ struct tty_struct *alloc_tty_struct(struct tty_driver *driver, int idx)
+ 
+ 	kref_init(&tty->kref);
+ 	tty->magic = TTY_MAGIC;
+-	tty_ldisc_init(tty);
++	if (tty_ldisc_init(tty)) {
++		kfree(tty);
++		return NULL;
++	}
+ 	tty->session = NULL;
+ 	tty->pgrp = NULL;
+ 	mutex_init(&tty->legacy_mutex);
+diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
+index 7c895684c3ef..ca656ef8de64 100644
+--- a/drivers/tty/tty_ldisc.c
++++ b/drivers/tty/tty_ldisc.c
+@@ -175,12 +175,11 @@ static struct tty_ldisc *tty_ldisc_get(struct tty_struct *tty, int disc)
+ 			return ERR_CAST(ldops);
+ 	}
+ 
+-	ld = kmalloc(sizeof(struct tty_ldisc), GFP_KERNEL);
+-	if (ld == NULL) {
+-		put_ldops(ldops);
+-		return ERR_PTR(-ENOMEM);
+-	}
+-
++	/*
++	 * There is no way to handle allocation failure of only 16 bytes.
++	 * Let's simplify error handling and save more memory.
++	 */
++	ld = kmalloc(sizeof(struct tty_ldisc), GFP_KERNEL | __GFP_NOFAIL);
+ 	ld->ops = ldops;
+ 	ld->tty = tty;
+ 
+@@ -526,19 +525,16 @@ static int tty_ldisc_failto(struct tty_struct *tty, int ld)
+ static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
+ {
+ 	/* There is an outstanding reference here so this is safe */
+-	old = tty_ldisc_get(tty, old->ops->num);
+-	WARN_ON(IS_ERR(old));
+-	tty->ldisc = old;
+-	tty_set_termios_ldisc(tty, old->ops->num);
+-	if (tty_ldisc_open(tty, old) < 0) {
+-		tty_ldisc_put(old);
++	if (tty_ldisc_failto(tty, old->ops->num) < 0) {
++		const char *name = tty_name(tty);
++
++		pr_warn("Falling back ldisc for %s.\n", name);
+ 		/* The traditional behaviour is to fall back to N_TTY, we
+ 		   want to avoid falling back to N_NULL unless we have no
+ 		   choice to avoid the risk of breaking anything */
+ 		if (tty_ldisc_failto(tty, N_TTY) < 0 &&
+ 		    tty_ldisc_failto(tty, N_NULL) < 0)
+-			panic("Couldn't open N_NULL ldisc for %s.",
+-			      tty_name(tty));
++			panic("Couldn't open N_NULL ldisc for %s.", name);
+ 	}
+ }
+ 
+@@ -823,12 +819,13 @@ EXPORT_SYMBOL_GPL(tty_ldisc_release);
+  *	the tty structure is not completely set up when this call is made.
+  */
+ 
+-void tty_ldisc_init(struct tty_struct *tty)
++int tty_ldisc_init(struct tty_struct *tty)
+ {
+ 	struct tty_ldisc *ld = tty_ldisc_get(tty, N_TTY);
+ 	if (IS_ERR(ld))
+-		panic("n_tty: init_tty");
++		return PTR_ERR(ld);
+ 	tty->ldisc = ld;
++	return 0;
+ }
+ 
+ /**
+diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
+index 75ad6718858c..d0b2e0ed9bab 100644
+--- a/drivers/usb/core/hcd.c
++++ b/drivers/usb/core/hcd.c
+@@ -2376,6 +2376,7 @@ void usb_hcd_resume_root_hub (struct usb_hcd *hcd)
+ 
+ 	spin_lock_irqsave (&hcd_root_hub_lock, flags);
+ 	if (hcd->rh_registered) {
++		pm_wakeup_event(&hcd->self.root_hub->dev, 0);
+ 		set_bit(HCD_FLAG_WAKEUP_PENDING, &hcd->flags);
+ 		queue_work(pm_wq, &hcd->wakeup_work);
+ 	}
+diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
+index 8f7d94239ee3..442be7f312f6 100644
+--- a/drivers/usb/core/hub.c
++++ b/drivers/usb/core/hub.c
+@@ -650,12 +650,17 @@ void usb_wakeup_notification(struct usb_device *hdev,
+ 		unsigned int portnum)
+ {
+ 	struct usb_hub *hub;
++	struct usb_port *port_dev;
+ 
+ 	if (!hdev)
+ 		return;
+ 
+ 	hub = usb_hub_to_struct_hub(hdev);
+ 	if (hub) {
++		port_dev = hub->ports[portnum - 1];
++		if (port_dev && port_dev->child)
++			pm_wakeup_event(&port_dev->child->dev, 0);
++
+ 		set_bit(portnum, hub->wakeup_bits);
+ 		kick_hub_wq(hub);
+ 	}
+@@ -3415,8 +3420,11 @@ int usb_port_resume(struct usb_device *udev, pm_message_t msg)
+ 
+ 	/* Skip the initial Clear-Suspend step for a remote wakeup */
+ 	status = hub_port_status(hub, port1, &portstatus, &portchange);
+-	if (status == 0 && !port_is_suspended(hub, portstatus))
++	if (status == 0 && !port_is_suspended(hub, portstatus)) {
++		if (portchange & USB_PORT_STAT_C_SUSPEND)
++			pm_wakeup_event(&udev->dev, 0);
+ 		goto SuspendCleared;
++	}
+ 
+ 	/* see 7.1.7.7; affects power usage, but not budgeting */
+ 	if (hub_is_superspeed(hub->hdev))
+diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
+index 4f1c6f8d4352..40ce175655e6 100644
+--- a/drivers/usb/core/quirks.c
++++ b/drivers/usb/core/quirks.c
+@@ -45,6 +45,9 @@ static const struct usb_device_id usb_quirk_list[] = {
+ 	{ USB_DEVICE(0x03f0, 0x0701), .driver_info =
+ 			USB_QUIRK_STRING_FETCH_255 },
+ 
++	/* HP v222w 16GB Mini USB Drive */
++	{ USB_DEVICE(0x03f0, 0x3f40), .driver_info = USB_QUIRK_DELAY_INIT },
++
+ 	/* Creative SB Audigy 2 NX */
+ 	{ USB_DEVICE(0x041e, 0x3020), .driver_info = USB_QUIRK_RESET_RESUME },
+ 
+diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
+index 3fb57cf8abb8..d79ab0d85924 100644
+--- a/drivers/usb/host/xhci-pci.c
++++ b/drivers/usb/host/xhci-pci.c
+@@ -134,7 +134,10 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
+ 	if (pdev->vendor == PCI_VENDOR_ID_AMD && usb_amd_find_chipset_info())
+ 		xhci->quirks |= XHCI_AMD_PLL_FIX;
+ 
+-	if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43bb)
++	if (pdev->vendor == PCI_VENDOR_ID_AMD &&
++		(pdev->device == 0x15e0 ||
++		 pdev->device == 0x15e1 ||
++		 pdev->device == 0x43bb))
+ 		xhci->quirks |= XHCI_SUSPEND_DELAY;
+ 
+ 	if (pdev->vendor == PCI_VENDOR_ID_AMD)
+diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
+index 1cb6eaef4ae1..7d9e085f7b85 100644
+--- a/drivers/usb/host/xhci-plat.c
++++ b/drivers/usb/host/xhci-plat.c
+@@ -423,7 +423,6 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
+ static struct platform_driver usb_xhci_driver = {
+ 	.probe	= xhci_plat_probe,
+ 	.remove	= xhci_plat_remove,
+-	.shutdown	= usb_hcd_platform_shutdown,
+ 	.driver	= {
+ 		.name = "xhci-hcd",
+ 		.pm = &xhci_plat_pm_ops,
+diff --git a/drivers/usb/serial/Kconfig b/drivers/usb/serial/Kconfig
+index c66b93664d54..c508e2d7104b 100644
+--- a/drivers/usb/serial/Kconfig
++++ b/drivers/usb/serial/Kconfig
+@@ -62,6 +62,7 @@ config USB_SERIAL_SIMPLE
+ 		- Fundamental Software dongle.
+ 		- Google USB serial devices
+ 		- HP4x calculators
++		- Libtransistor USB console
+ 		- a number of Motorola phones
+ 		- Motorola Tetra devices
+ 		- Novatel Wireless GPS receivers
+diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
+index 2836acf73a07..d0f00274d16c 100644
+--- a/drivers/usb/serial/cp210x.c
++++ b/drivers/usb/serial/cp210x.c
+@@ -217,6 +217,7 @@ static const struct usb_device_id id_table[] = {
+ 	{ USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */
+ 	{ USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */
+ 	{ USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */
++	{ USB_DEVICE(0x3923, 0x7A0B) }, /* National Instruments USB Serial Console */
+ 	{ USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */
+ 	{ } /* Terminating Entry */
+ };
+diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
+index a2a5232751cb..385f2ae3be24 100644
+--- a/drivers/usb/serial/ftdi_sio.c
++++ b/drivers/usb/serial/ftdi_sio.c
+@@ -1902,7 +1902,8 @@ static int ftdi_8u2232c_probe(struct usb_serial *serial)
+ 		return ftdi_jtag_probe(serial);
+ 
+ 	if (udev->product &&
+-		(!strcmp(udev->product, "BeagleBone/XDS100V2") ||
++		(!strcmp(udev->product, "Arrow USB Blaster") ||
++		 !strcmp(udev->product, "BeagleBone/XDS100V2") ||
+ 		 !strcmp(udev->product, "SNAP Connect E10")))
+ 		return ftdi_jtag_probe(serial);
+ 
+diff --git a/drivers/usb/serial/usb-serial-simple.c b/drivers/usb/serial/usb-serial-simple.c
+index 6aa7ff2c1cf7..2674da40d9cd 100644
+--- a/drivers/usb/serial/usb-serial-simple.c
++++ b/drivers/usb/serial/usb-serial-simple.c
+@@ -66,6 +66,11 @@ DEVICE(flashloader, FLASHLOADER_IDS);
+ 					0x01) }
+ DEVICE(google, GOOGLE_IDS);
+ 
++/* Libtransistor USB console */
++#define LIBTRANSISTOR_IDS()			\
++	{ USB_DEVICE(0x1209, 0x8b00) }
++DEVICE(libtransistor, LIBTRANSISTOR_IDS);
++
+ /* ViVOpay USB Serial Driver */
+ #define VIVOPAY_IDS()			\
+ 	{ USB_DEVICE(0x1d5f, 0x1004) }	/* ViVOpay 8800 */
+@@ -113,6 +118,7 @@ static struct usb_serial_driver * const serial_drivers[] = {
+ 	&funsoft_device,
+ 	&flashloader_device,
+ 	&google_device,
++	&libtransistor_device,
+ 	&vivopay_device,
+ 	&moto_modem_device,
+ 	&motorola_tetra_device,
+@@ -129,6 +135,7 @@ static const struct usb_device_id id_table[] = {
+ 	FUNSOFT_IDS(),
+ 	FLASHLOADER_IDS(),
+ 	GOOGLE_IDS(),
++	LIBTRANSISTOR_IDS(),
+ 	VIVOPAY_IDS(),
+ 	MOTO_IDS(),
+ 	MOTOROLA_TETRA_IDS(),
+diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
+index 714c5bcedf2b..dd24c5c1534d 100644
+--- a/drivers/usb/typec/ucsi/ucsi.c
++++ b/drivers/usb/typec/ucsi/ucsi.c
+@@ -31,7 +31,7 @@
+  * difficult to estimate the time it takes for the system to process the command
+  * before it is actually passed to the PPM.
+  */
+-#define UCSI_TIMEOUT_MS		1000
++#define UCSI_TIMEOUT_MS		5000
+ 
+ /*
+  * UCSI_SWAP_TIMEOUT_MS - Timeout for role swap requests
+diff --git a/drivers/usb/usbip/stub_main.c b/drivers/usb/usbip/stub_main.c
+index 6968c906fa29..b59a253a8479 100644
+--- a/drivers/usb/usbip/stub_main.c
++++ b/drivers/usb/usbip/stub_main.c
+@@ -200,7 +200,12 @@ static ssize_t rebind_store(struct device_driver *dev, const char *buf,
+ 	if (!bid)
+ 		return -ENODEV;
+ 
++	/* device_attach() callers should hold parent lock for USB */
++	if (bid->udev->dev.parent)
++		device_lock(bid->udev->dev.parent);
+ 	ret = device_attach(&bid->udev->dev);
++	if (bid->udev->dev.parent)
++		device_unlock(bid->udev->dev.parent);
+ 	if (ret < 0) {
+ 		dev_err(&bid->udev->dev, "rebind failed\n");
+ 		return ret;
+diff --git a/drivers/usb/usbip/usbip_common.h b/drivers/usb/usbip/usbip_common.h
+index 33737b612b1f..c81c44c13a56 100644
+--- a/drivers/usb/usbip/usbip_common.h
++++ b/drivers/usb/usbip/usbip_common.h
+@@ -257,7 +257,7 @@ enum usbip_side {
+ #define	VUDC_EVENT_ERROR_USB	(USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE)
+ #define	VUDC_EVENT_ERROR_MALLOC	(USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE)
+ 
+-#define	VDEV_EVENT_REMOVED	(USBIP_EH_SHUTDOWN | USBIP_EH_BYE)
++#define	VDEV_EVENT_REMOVED (USBIP_EH_SHUTDOWN | USBIP_EH_RESET | USBIP_EH_BYE)
+ #define	VDEV_EVENT_DOWN		(USBIP_EH_SHUTDOWN | USBIP_EH_RESET)
+ #define	VDEV_EVENT_ERROR_TCP	(USBIP_EH_SHUTDOWN | USBIP_EH_RESET)
+ #define	VDEV_EVENT_ERROR_MALLOC	(USBIP_EH_SHUTDOWN | USBIP_EH_UNUSABLE)
+diff --git a/drivers/usb/usbip/usbip_event.c b/drivers/usb/usbip/usbip_event.c
+index f1635662c299..f8f7f3803a99 100644
+--- a/drivers/usb/usbip/usbip_event.c
++++ b/drivers/usb/usbip/usbip_event.c
+@@ -105,10 +105,6 @@ static void event_handler(struct work_struct *work)
+ 			unset_event(ud, USBIP_EH_UNUSABLE);
+ 		}
+ 
+-		/* Stop the error handler. */
+-		if (ud->event & USBIP_EH_BYE)
+-			usbip_dbg_eh("removed %p\n", ud);
+-
+ 		wake_up(&ud->eh_waitq);
+ 	}
+ }
+diff --git a/drivers/usb/usbip/vhci_hcd.c b/drivers/usb/usbip/vhci_hcd.c
+index 89858aeed647..05aa1ba351b6 100644
+--- a/drivers/usb/usbip/vhci_hcd.c
++++ b/drivers/usb/usbip/vhci_hcd.c
+@@ -368,6 +368,8 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ 		usbip_dbg_vhci_rh(" ClearHubFeature\n");
+ 		break;
+ 	case ClearPortFeature:
++		if (rhport < 0)
++			goto error;
+ 		switch (wValue) {
+ 		case USB_PORT_FEAT_SUSPEND:
+ 			if (hcd->speed == HCD_USB3) {
+@@ -525,11 +527,16 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ 				goto error;
+ 			}
+ 
++			if (rhport < 0)
++				goto error;
++
+ 			vhci_hcd->port_status[rhport] |= USB_PORT_STAT_SUSPEND;
+ 			break;
+ 		case USB_PORT_FEAT_POWER:
+ 			usbip_dbg_vhci_rh(
+ 				" SetPortFeature: USB_PORT_FEAT_POWER\n");
++			if (rhport < 0)
++				goto error;
+ 			if (hcd->speed == HCD_USB3)
+ 				vhci_hcd->port_status[rhport] |= USB_SS_PORT_STAT_POWER;
+ 			else
+@@ -538,6 +545,8 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ 		case USB_PORT_FEAT_BH_PORT_RESET:
+ 			usbip_dbg_vhci_rh(
+ 				" SetPortFeature: USB_PORT_FEAT_BH_PORT_RESET\n");
++			if (rhport < 0)
++				goto error;
+ 			/* Applicable only for USB3.0 hub */
+ 			if (hcd->speed != HCD_USB3) {
+ 				pr_err("USB_PORT_FEAT_BH_PORT_RESET req not "
+@@ -548,6 +557,8 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ 		case USB_PORT_FEAT_RESET:
+ 			usbip_dbg_vhci_rh(
+ 				" SetPortFeature: USB_PORT_FEAT_RESET\n");
++			if (rhport < 0)
++				goto error;
+ 			/* if it's already enabled, disable */
+ 			if (hcd->speed == HCD_USB3) {
+ 				vhci_hcd->port_status[rhport] = 0;
+@@ -568,6 +579,8 @@ static int vhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue,
+ 		default:
+ 			usbip_dbg_vhci_rh(" SetPortFeature: default %d\n",
+ 					  wValue);
++			if (rhport < 0)
++				goto error;
+ 			if (hcd->speed == HCD_USB3) {
+ 				if ((vhci_hcd->port_status[rhport] &
+ 				     USB_SS_PORT_STAT_POWER) != 0) {
+diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
+index db5be5e2e6f2..58db8109defa 100644
+--- a/fs/ext4/balloc.c
++++ b/fs/ext4/balloc.c
+@@ -321,6 +321,7 @@ static ext4_fsblk_t ext4_valid_block_bitmap(struct super_block *sb,
+ 	struct ext4_sb_info *sbi = EXT4_SB(sb);
+ 	ext4_grpblk_t offset;
+ 	ext4_grpblk_t next_zero_bit;
++	ext4_grpblk_t max_bit = EXT4_CLUSTERS_PER_GROUP(sb);
+ 	ext4_fsblk_t blk;
+ 	ext4_fsblk_t group_first_block;
+ 
+@@ -338,20 +339,25 @@ static ext4_fsblk_t ext4_valid_block_bitmap(struct super_block *sb,
+ 	/* check whether block bitmap block number is set */
+ 	blk = ext4_block_bitmap(sb, desc);
+ 	offset = blk - group_first_block;
+-	if (!ext4_test_bit(EXT4_B2C(sbi, offset), bh->b_data))
++	if (offset < 0 || EXT4_B2C(sbi, offset) >= max_bit ||
++	    !ext4_test_bit(EXT4_B2C(sbi, offset), bh->b_data))
+ 		/* bad block bitmap */
+ 		return blk;
+ 
+ 	/* check whether the inode bitmap block number is set */
+ 	blk = ext4_inode_bitmap(sb, desc);
+ 	offset = blk - group_first_block;
+-	if (!ext4_test_bit(EXT4_B2C(sbi, offset), bh->b_data))
++	if (offset < 0 || EXT4_B2C(sbi, offset) >= max_bit ||
++	    !ext4_test_bit(EXT4_B2C(sbi, offset), bh->b_data))
+ 		/* bad block bitmap */
+ 		return blk;
+ 
+ 	/* check whether the inode table block number is set */
+ 	blk = ext4_inode_table(sb, desc);
+ 	offset = blk - group_first_block;
++	if (offset < 0 || EXT4_B2C(sbi, offset) >= max_bit ||
++	    EXT4_B2C(sbi, offset + sbi->s_itb_per_group) >= max_bit)
++		return blk;
+ 	next_zero_bit = ext4_find_next_zero_bit(bh->b_data,
+ 			EXT4_B2C(sbi, offset + EXT4_SB(sb)->s_itb_per_group),
+ 			EXT4_B2C(sbi, offset));
+@@ -417,6 +423,7 @@ struct buffer_head *
+ ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group)
+ {
+ 	struct ext4_group_desc *desc;
++	struct ext4_sb_info *sbi = EXT4_SB(sb);
+ 	struct buffer_head *bh;
+ 	ext4_fsblk_t bitmap_blk;
+ 	int err;
+@@ -425,6 +432,12 @@ ext4_read_block_bitmap_nowait(struct super_block *sb, ext4_group_t block_group)
+ 	if (!desc)
+ 		return ERR_PTR(-EFSCORRUPTED);
+ 	bitmap_blk = ext4_block_bitmap(sb, desc);
++	if ((bitmap_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
++	    (bitmap_blk >= ext4_blocks_count(sbi->s_es))) {
++		ext4_error(sb, "Invalid block bitmap block %llu in "
++			   "block_group %u", bitmap_blk, block_group);
++		return ERR_PTR(-EFSCORRUPTED);
++	}
+ 	bh = sb_getblk(sb, bitmap_blk);
+ 	if (unlikely(!bh)) {
+ 		ext4_error(sb, "Cannot get buffer for block bitmap - "
+diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
+index c941251ac0c0..883e89a903d1 100644
+--- a/fs/ext4/extents.c
++++ b/fs/ext4/extents.c
+@@ -5346,8 +5346,9 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
+ 	stop = le32_to_cpu(extent->ee_block);
+ 
+        /*
+-	 * In case of left shift, Don't start shifting extents until we make
+-	 * sure the hole is big enough to accommodate the shift.
++	* For left shifts, make sure the hole on the left is big enough to
++	* accommodate the shift.  For right shifts, make sure the last extent
++	* won't be shifted beyond EXT_MAX_BLOCKS.
+ 	*/
+ 	if (SHIFT == SHIFT_LEFT) {
+ 		path = ext4_find_extent(inode, start - 1, &path,
+@@ -5367,9 +5368,14 @@ ext4_ext_shift_extents(struct inode *inode, handle_t *handle,
+ 
+ 		if ((start == ex_start && shift > ex_start) ||
+ 		    (shift > start - ex_end)) {
+-			ext4_ext_drop_refs(path);
+-			kfree(path);
+-			return -EINVAL;
++			ret = -EINVAL;
++			goto out;
++		}
++	} else {
++		if (shift > EXT_MAX_BLOCKS -
++		    (stop + ext4_ext_get_actual_len(extent))) {
++			ret = -EINVAL;
++			goto out;
+ 		}
+ 	}
+ 
+diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
+index 7ec55dd8db56..f420124ac035 100644
+--- a/fs/ext4/ialloc.c
++++ b/fs/ext4/ialloc.c
+@@ -122,6 +122,7 @@ static struct buffer_head *
+ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
+ {
+ 	struct ext4_group_desc *desc;
++	struct ext4_sb_info *sbi = EXT4_SB(sb);
+ 	struct buffer_head *bh = NULL;
+ 	ext4_fsblk_t bitmap_blk;
+ 	int err;
+@@ -131,6 +132,12 @@ ext4_read_inode_bitmap(struct super_block *sb, ext4_group_t block_group)
+ 		return ERR_PTR(-EFSCORRUPTED);
+ 
+ 	bitmap_blk = ext4_inode_bitmap(sb, desc);
++	if ((bitmap_blk <= le32_to_cpu(sbi->s_es->s_first_data_block)) ||
++	    (bitmap_blk >= ext4_blocks_count(sbi->s_es))) {
++		ext4_error(sb, "Invalid inode bitmap blk %llu in "
++			   "block_group %u", bitmap_blk, block_group);
++		return ERR_PTR(-EFSCORRUPTED);
++	}
+ 	bh = sb_getblk(sb, bitmap_blk);
+ 	if (unlikely(!bh)) {
+ 		ext4_error(sb, "Cannot read inode bitmap - "
+diff --git a/fs/ext4/super.c b/fs/ext4/super.c
+index 3a605c672649..9102ae7709d3 100644
+--- a/fs/ext4/super.c
++++ b/fs/ext4/super.c
+@@ -5865,5 +5865,6 @@ static void __exit ext4_exit_fs(void)
+ MODULE_AUTHOR("Remy Card, Stephen Tweedie, Andrew Morton, Andreas Dilger, Theodore Ts'o and others");
+ MODULE_DESCRIPTION("Fourth Extended Filesystem");
+ MODULE_LICENSE("GPL");
++MODULE_SOFTDEP("pre: crc32c");
+ module_init(ext4_init_fs)
+ module_exit(ext4_exit_fs)
+diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
+index c0681814c379..07793e25c976 100644
+--- a/fs/jbd2/transaction.c
++++ b/fs/jbd2/transaction.c
+@@ -535,6 +535,7 @@ int jbd2_journal_start_reserved(handle_t *handle, unsigned int type,
+ 	 */
+ 	ret = start_this_handle(journal, handle, GFP_NOFS);
+ 	if (ret < 0) {
++		handle->h_journal = journal;
+ 		jbd2_journal_free_reserved(handle);
+ 		return ret;
+ 	}
+diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
+index 353f52fdc35e..fcec26d60d8c 100644
+--- a/include/asm-generic/vmlinux.lds.h
++++ b/include/asm-generic/vmlinux.lds.h
+@@ -170,7 +170,7 @@
+ #endif
+ 
+ #ifdef CONFIG_SERIAL_EARLYCON
+-#define EARLYCON_TABLE() STRUCT_ALIGN();			\
++#define EARLYCON_TABLE() . = ALIGN(8);				\
+ 			 VMLINUX_SYMBOL(__earlycon_table) = .;	\
+ 			 KEEP(*(__earlycon_table))		\
+ 			 VMLINUX_SYMBOL(__earlycon_table_end) = .;
+diff --git a/include/kvm/arm_psci.h b/include/kvm/arm_psci.h
+index e518e4e3dfb5..4b1548129fa2 100644
+--- a/include/kvm/arm_psci.h
++++ b/include/kvm/arm_psci.h
+@@ -37,10 +37,15 @@ static inline int kvm_psci_version(struct kvm_vcpu *vcpu, struct kvm *kvm)
+ 	 * Our PSCI implementation stays the same across versions from
+ 	 * v0.2 onward, only adding the few mandatory functions (such
+ 	 * as FEATURES with 1.0) that are required by newer
+-	 * revisions. It is thus safe to return the latest.
++	 * revisions. It is thus safe to return the latest, unless
++	 * userspace has instructed us otherwise.
+ 	 */
+-	if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features))
++	if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features)) {
++		if (vcpu->kvm->arch.psci_version)
++			return vcpu->kvm->arch.psci_version;
++
+ 		return KVM_ARM_PSCI_LATEST;
++	}
+ 
+ 	return KVM_ARM_PSCI_0_1;
+ }
+@@ -48,4 +53,11 @@ static inline int kvm_psci_version(struct kvm_vcpu *vcpu, struct kvm *kvm)
+ 
+ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu);
+ 
++struct kvm_one_reg;
++
++int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu);
++int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
++int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
++int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
++
+ #endif /* __KVM_ARM_PSCI_H__ */
+diff --git a/include/linux/mtd/flashchip.h b/include/linux/mtd/flashchip.h
+index b63fa457febd..3529683f691e 100644
+--- a/include/linux/mtd/flashchip.h
++++ b/include/linux/mtd/flashchip.h
+@@ -85,6 +85,7 @@ struct flchip {
+ 	unsigned int write_suspended:1;
+ 	unsigned int erase_suspended:1;
+ 	unsigned long in_progress_block_addr;
++	unsigned long in_progress_block_mask;
+ 
+ 	struct mutex mutex;
+ 	wait_queue_head_t wq; /* Wait on here when we're waiting for the chip
+diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
+index 5553e04e59c9..74fc82d22310 100644
+--- a/include/linux/serial_core.h
++++ b/include/linux/serial_core.h
+@@ -351,10 +351,10 @@ struct earlycon_id {
+ 	char	name[16];
+ 	char	compatible[128];
+ 	int	(*setup)(struct earlycon_device *, const char *options);
+-} __aligned(32);
++};
+ 
+-extern const struct earlycon_id __earlycon_table[];
+-extern const struct earlycon_id __earlycon_table_end[];
++extern const struct earlycon_id *__earlycon_table[];
++extern const struct earlycon_id *__earlycon_table_end[];
+ 
+ #if defined(CONFIG_SERIAL_EARLYCON) && !defined(MODULE)
+ #define EARLYCON_USED_OR_UNUSED	__used
+@@ -362,12 +362,19 @@ extern const struct earlycon_id __earlycon_table_end[];
+ #define EARLYCON_USED_OR_UNUSED	__maybe_unused
+ #endif
+ 
+-#define OF_EARLYCON_DECLARE(_name, compat, fn)				\
+-	static const struct earlycon_id __UNIQUE_ID(__earlycon_##_name)	\
+-	     EARLYCON_USED_OR_UNUSED __section(__earlycon_table)	\
++#define _OF_EARLYCON_DECLARE(_name, compat, fn, unique_id)		\
++	static const struct earlycon_id unique_id			\
++	     EARLYCON_USED_OR_UNUSED __initconst			\
+ 		= { .name = __stringify(_name),				\
+ 		    .compatible = compat,				\
+-		    .setup = fn  }
++		    .setup = fn  };					\
++	static const struct earlycon_id EARLYCON_USED_OR_UNUSED		\
++		__section(__earlycon_table)				\
++		* const __PASTE(__p, unique_id) = &unique_id
++
++#define OF_EARLYCON_DECLARE(_name, compat, fn)				\
++	_OF_EARLYCON_DECLARE(_name, compat, fn,				\
++			     __UNIQUE_ID(__earlycon_##_name))
+ 
+ #define EARLYCON_DECLARE(_name, fn)	OF_EARLYCON_DECLARE(_name, "", fn)
+ 
+diff --git a/include/linux/tty.h b/include/linux/tty.h
+index 47f8af22f216..1dd587ba6d88 100644
+--- a/include/linux/tty.h
++++ b/include/linux/tty.h
+@@ -701,7 +701,7 @@ extern int tty_unregister_ldisc(int disc);
+ extern int tty_set_ldisc(struct tty_struct *tty, int disc);
+ extern int tty_ldisc_setup(struct tty_struct *tty, struct tty_struct *o_tty);
+ extern void tty_ldisc_release(struct tty_struct *tty);
+-extern void tty_ldisc_init(struct tty_struct *tty);
++extern int __must_check tty_ldisc_init(struct tty_struct *tty);
+ extern void tty_ldisc_deinit(struct tty_struct *tty);
+ extern int tty_ldisc_receive_buf(struct tty_ldisc *ld, const unsigned char *p,
+ 				 char *f, int count);
+diff --git a/include/linux/virtio.h b/include/linux/virtio.h
+index 988c7355bc22..fa1b5da2804e 100644
+--- a/include/linux/virtio.h
++++ b/include/linux/virtio.h
+@@ -157,6 +157,9 @@ int virtio_device_freeze(struct virtio_device *dev);
+ int virtio_device_restore(struct virtio_device *dev);
+ #endif
+ 
++#define virtio_device_for_each_vq(vdev, vq) \
++	list_for_each_entry(vq, &vdev->vqs, list)
++
+ /**
+  * virtio_driver - operations for a virtio I/O driver
+  * @driver: underlying device driver (populate name and owner).
+diff --git a/include/sound/control.h b/include/sound/control.h
+index ca13a44ae9d4..6011a58d3e20 100644
+--- a/include/sound/control.h
++++ b/include/sound/control.h
+@@ -23,6 +23,7 @@
+  */
+ 
+ #include <linux/wait.h>
++#include <linux/nospec.h>
+ #include <sound/asound.h>
+ 
+ #define snd_kcontrol_chip(kcontrol) ((kcontrol)->private_data)
+@@ -148,12 +149,14 @@ int snd_ctl_get_preferred_subdevice(struct snd_card *card, int type);
+ 
+ static inline unsigned int snd_ctl_get_ioffnum(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
+ {
+-	return id->numid - kctl->id.numid;
++	unsigned int ioff = id->numid - kctl->id.numid;
++	return array_index_nospec(ioff, kctl->count);
+ }
+ 
+ static inline unsigned int snd_ctl_get_ioffidx(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
+ {
+-	return id->index - kctl->id.index;
++	unsigned int ioff = id->index - kctl->id.index;
++	return array_index_nospec(ioff, kctl->count);
+ }
+ 
+ static inline unsigned int snd_ctl_get_ioff(struct snd_kcontrol *kctl, struct snd_ctl_elem_id *id)
+diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c
+index dfa4a117fee3..bb2af74e6b62 100644
+--- a/kernel/time/tick-sched.c
++++ b/kernel/time/tick-sched.c
+@@ -820,12 +820,13 @@ static ktime_t tick_nohz_stop_sched_tick(struct tick_sched *ts,
+ 		goto out;
+ 	}
+ 
+-	hrtimer_set_expires(&ts->sched_timer, tick);
+-
+-	if (ts->nohz_mode == NOHZ_MODE_HIGHRES)
+-		hrtimer_start_expires(&ts->sched_timer, HRTIMER_MODE_ABS_PINNED);
+-	else
++	if (ts->nohz_mode == NOHZ_MODE_HIGHRES) {
++		hrtimer_start(&ts->sched_timer, tick, HRTIMER_MODE_ABS_PINNED);
++	} else {
++		hrtimer_set_expires(&ts->sched_timer, tick);
+ 		tick_program_event(tick, 1);
++	}
++
+ out:
+ 	/*
+ 	 * Update the estimated sleep length until the next timer
+diff --git a/lib/kobject.c b/lib/kobject.c
+index 763d70a18941..34f847252c02 100644
+--- a/lib/kobject.c
++++ b/lib/kobject.c
+@@ -234,14 +234,12 @@ static int kobject_add_internal(struct kobject *kobj)
+ 
+ 		/* be noisy on error issues */
+ 		if (error == -EEXIST)
+-			WARN(1, "%s failed for %s with "
+-			     "-EEXIST, don't try to register things with "
+-			     "the same name in the same directory.\n",
+-			     __func__, kobject_name(kobj));
++			pr_err("%s failed for %s with -EEXIST, don't try to register things with the same name in the same directory.\n",
++			       __func__, kobject_name(kobj));
+ 		else
+-			WARN(1, "%s failed for %s (error: %d parent: %s)\n",
+-			     __func__, kobject_name(kobj), error,
+-			     parent ? kobject_name(parent) : "'none'");
++			pr_err("%s failed for %s (error: %d parent: %s)\n",
++			       __func__, kobject_name(kobj), error,
++			       parent ? kobject_name(parent) : "'none'");
+ 	} else
+ 		kobj->state_in_sysfs = 1;
+ 
+diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
+index ad93342c90d7..5c4e85296cf6 100644
+--- a/net/ceph/messenger.c
++++ b/net/ceph/messenger.c
+@@ -2530,6 +2530,11 @@ static int try_write(struct ceph_connection *con)
+ 	int ret = 1;
+ 
+ 	dout("try_write start %p state %lu\n", con, con->state);
++	if (con->state != CON_STATE_PREOPEN &&
++	    con->state != CON_STATE_CONNECTING &&
++	    con->state != CON_STATE_NEGOTIATING &&
++	    con->state != CON_STATE_OPEN)
++		return 0;
+ 
+ more:
+ 	dout("try_write out_kvec_bytes %d\n", con->out_kvec_bytes);
+@@ -2555,6 +2560,8 @@ static int try_write(struct ceph_connection *con)
+ 	}
+ 
+ more_kvec:
++	BUG_ON(!con->sock);
++
+ 	/* kvec data queued? */
+ 	if (con->out_kvec_left) {
+ 		ret = write_partial_kvec(con);
+diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
+index 9ae1bab8c05d..f14498a7eaec 100644
+--- a/net/ceph/mon_client.c
++++ b/net/ceph/mon_client.c
+@@ -209,6 +209,14 @@ static void reopen_session(struct ceph_mon_client *monc)
+ 	__open_session(monc);
+ }
+ 
++static void un_backoff(struct ceph_mon_client *monc)
++{
++	monc->hunt_mult /= 2; /* reduce by 50% */
++	if (monc->hunt_mult < 1)
++		monc->hunt_mult = 1;
++	dout("%s hunt_mult now %d\n", __func__, monc->hunt_mult);
++}
++
+ /*
+  * Reschedule delayed work timer.
+  */
+@@ -963,6 +971,7 @@ static void delayed_work(struct work_struct *work)
+ 		if (!monc->hunting) {
+ 			ceph_con_keepalive(&monc->con);
+ 			__validate_auth(monc);
++			un_backoff(monc);
+ 		}
+ 
+ 		if (is_auth &&
+@@ -1123,9 +1132,8 @@ static void finish_hunting(struct ceph_mon_client *monc)
+ 		dout("%s found mon%d\n", __func__, monc->cur_mon);
+ 		monc->hunting = false;
+ 		monc->had_a_connection = true;
+-		monc->hunt_mult /= 2; /* reduce by 50% */
+-		if (monc->hunt_mult < 1)
+-			monc->hunt_mult = 1;
++		un_backoff(monc);
++		__schedule_delayed(monc);
+ 	}
+ }
+ 
+diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c
+index b719d0bd833e..06d7c40af570 100644
+--- a/sound/core/pcm_compat.c
++++ b/sound/core/pcm_compat.c
+@@ -27,10 +27,11 @@ static int snd_pcm_ioctl_delay_compat(struct snd_pcm_substream *substream,
+ 				      s32 __user *src)
+ {
+ 	snd_pcm_sframes_t delay;
++	int err;
+ 
+-	delay = snd_pcm_delay(substream);
+-	if (delay < 0)
+-		return delay;
++	err = snd_pcm_delay(substream, &delay);
++	if (err)
++		return err;
+ 	if (put_user(delay, src))
+ 		return -EFAULT;
+ 	return 0;
+diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
+index eba2bedcbc81..ab3bf36786b6 100644
+--- a/sound/core/pcm_native.c
++++ b/sound/core/pcm_native.c
+@@ -2689,7 +2689,8 @@ static int snd_pcm_hwsync(struct snd_pcm_substream *substream)
+ 	return err;
+ }
+ 		
+-static snd_pcm_sframes_t snd_pcm_delay(struct snd_pcm_substream *substream)
++static int snd_pcm_delay(struct snd_pcm_substream *substream,
++			 snd_pcm_sframes_t *delay)
+ {
+ 	struct snd_pcm_runtime *runtime = substream->runtime;
+ 	int err;
+@@ -2705,7 +2706,9 @@ static snd_pcm_sframes_t snd_pcm_delay(struct snd_pcm_substream *substream)
+ 		n += runtime->delay;
+ 	}
+ 	snd_pcm_stream_unlock_irq(substream);
+-	return err < 0 ? err : n;
++	if (!err)
++		*delay = n;
++	return err;
+ }
+ 		
+ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
+@@ -2748,6 +2751,7 @@ static int snd_pcm_sync_ptr(struct snd_pcm_substream *substream,
+ 	sync_ptr.s.status.hw_ptr = status->hw_ptr;
+ 	sync_ptr.s.status.tstamp = status->tstamp;
+ 	sync_ptr.s.status.suspended_state = status->suspended_state;
++	sync_ptr.s.status.audio_tstamp = status->audio_tstamp;
+ 	snd_pcm_stream_unlock_irq(substream);
+ 	if (copy_to_user(_sync_ptr, &sync_ptr, sizeof(sync_ptr)))
+ 		return -EFAULT;
+@@ -2913,11 +2917,13 @@ static int snd_pcm_common_ioctl(struct file *file,
+ 		return snd_pcm_hwsync(substream);
+ 	case SNDRV_PCM_IOCTL_DELAY:
+ 	{
+-		snd_pcm_sframes_t delay = snd_pcm_delay(substream);
++		snd_pcm_sframes_t delay;
+ 		snd_pcm_sframes_t __user *res = arg;
++		int err;
+ 
+-		if (delay < 0)
+-			return delay;
++		err = snd_pcm_delay(substream, &delay);
++		if (err)
++			return err;
+ 		if (put_user(delay, res))
+ 			return -EFAULT;
+ 		return 0;
+@@ -3005,13 +3011,7 @@ int snd_pcm_kernel_ioctl(struct snd_pcm_substream *substream,
+ 	case SNDRV_PCM_IOCTL_DROP:
+ 		return snd_pcm_drop(substream);
+ 	case SNDRV_PCM_IOCTL_DELAY:
+-	{
+-		result = snd_pcm_delay(substream);
+-		if (result < 0)
+-			return result;
+-		*frames = result;
+-		return 0;
+-	}
++		return snd_pcm_delay(substream, frames);
+ 	default:
+ 		return -EINVAL;
+ 	}
+diff --git a/sound/core/seq/oss/seq_oss_event.c b/sound/core/seq/oss/seq_oss_event.c
+index c3908862bc8b..86ca584c27b2 100644
+--- a/sound/core/seq/oss/seq_oss_event.c
++++ b/sound/core/seq/oss/seq_oss_event.c
+@@ -26,6 +26,7 @@
+ #include <sound/seq_oss_legacy.h>
+ #include "seq_oss_readq.h"
+ #include "seq_oss_writeq.h"
++#include <linux/nospec.h>
+ 
+ 
+ /*
+@@ -287,10 +288,10 @@ note_on_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, st
+ {
+ 	struct seq_oss_synthinfo *info;
+ 
+-	if (!snd_seq_oss_synth_is_valid(dp, dev))
++	info = snd_seq_oss_synth_info(dp, dev);
++	if (!info)
+ 		return -ENXIO;
+ 
+-	info = &dp->synths[dev];
+ 	switch (info->arg.event_passing) {
+ 	case SNDRV_SEQ_OSS_PROCESS_EVENTS:
+ 		if (! info->ch || ch < 0 || ch >= info->nr_voices) {
+@@ -298,6 +299,7 @@ note_on_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, st
+ 			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+ 		}
+ 
++		ch = array_index_nospec(ch, info->nr_voices);
+ 		if (note == 255 && info->ch[ch].note >= 0) {
+ 			/* volume control */
+ 			int type;
+@@ -347,10 +349,10 @@ note_off_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, s
+ {
+ 	struct seq_oss_synthinfo *info;
+ 
+-	if (!snd_seq_oss_synth_is_valid(dp, dev))
++	info = snd_seq_oss_synth_info(dp, dev);
++	if (!info)
+ 		return -ENXIO;
+ 
+-	info = &dp->synths[dev];
+ 	switch (info->arg.event_passing) {
+ 	case SNDRV_SEQ_OSS_PROCESS_EVENTS:
+ 		if (! info->ch || ch < 0 || ch >= info->nr_voices) {
+@@ -358,6 +360,7 @@ note_off_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, s
+ 			return set_note_event(dp, dev, SNDRV_SEQ_EVENT_NOTEON, ch, note, vel, ev);
+ 		}
+ 
++		ch = array_index_nospec(ch, info->nr_voices);
+ 		if (info->ch[ch].note >= 0) {
+ 			note = info->ch[ch].note;
+ 			info->ch[ch].vel = 0;
+@@ -381,7 +384,7 @@ note_off_event(struct seq_oss_devinfo *dp, int dev, int ch, int note, int vel, s
+ static int
+ set_note_event(struct seq_oss_devinfo *dp, int dev, int type, int ch, int note, int vel, struct snd_seq_event *ev)
+ {
+-	if (! snd_seq_oss_synth_is_valid(dp, dev))
++	if (!snd_seq_oss_synth_info(dp, dev))
+ 		return -ENXIO;
+ 	
+ 	ev->type = type;
+@@ -399,7 +402,7 @@ set_note_event(struct seq_oss_devinfo *dp, int dev, int type, int ch, int note,
+ static int
+ set_control_event(struct seq_oss_devinfo *dp, int dev, int type, int ch, int param, int val, struct snd_seq_event *ev)
+ {
+-	if (! snd_seq_oss_synth_is_valid(dp, dev))
++	if (!snd_seq_oss_synth_info(dp, dev))
+ 		return -ENXIO;
+ 	
+ 	ev->type = type;
+diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
+index b30b2139e3f0..9debd1b8fd28 100644
+--- a/sound/core/seq/oss/seq_oss_midi.c
++++ b/sound/core/seq/oss/seq_oss_midi.c
+@@ -29,6 +29,7 @@
+ #include "../seq_lock.h"
+ #include <linux/init.h>
+ #include <linux/slab.h>
++#include <linux/nospec.h>
+ 
+ 
+ /*
+@@ -315,6 +316,7 @@ get_mididev(struct seq_oss_devinfo *dp, int dev)
+ {
+ 	if (dev < 0 || dev >= dp->max_mididev)
+ 		return NULL;
++	dev = array_index_nospec(dev, dp->max_mididev);
+ 	return get_mdev(dev);
+ }
+ 
+diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c
+index cd0e0ebbfdb1..278ebb993122 100644
+--- a/sound/core/seq/oss/seq_oss_synth.c
++++ b/sound/core/seq/oss/seq_oss_synth.c
+@@ -26,6 +26,7 @@
+ #include <linux/init.h>
+ #include <linux/module.h>
+ #include <linux/slab.h>
++#include <linux/nospec.h>
+ 
+ /*
+  * constants
+@@ -339,17 +340,13 @@ snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp)
+ 	dp->max_synthdev = 0;
+ }
+ 
+-/*
+- * check if the specified device is MIDI mapped device
+- */
+-static int
+-is_midi_dev(struct seq_oss_devinfo *dp, int dev)
++static struct seq_oss_synthinfo *
++get_synthinfo_nospec(struct seq_oss_devinfo *dp, int dev)
+ {
+ 	if (dev < 0 || dev >= dp->max_synthdev)
+-		return 0;
+-	if (dp->synths[dev].is_midi)
+-		return 1;
+-	return 0;
++		return NULL;
++	dev = array_index_nospec(dev, SNDRV_SEQ_OSS_MAX_SYNTH_DEVS);
++	return &dp->synths[dev];
+ }
+ 
+ /*
+@@ -359,14 +356,20 @@ static struct seq_oss_synth *
+ get_synthdev(struct seq_oss_devinfo *dp, int dev)
+ {
+ 	struct seq_oss_synth *rec;
+-	if (dev < 0 || dev >= dp->max_synthdev)
+-		return NULL;
+-	if (! dp->synths[dev].opened)
++	struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev);
++
++	if (!info)
+ 		return NULL;
+-	if (dp->synths[dev].is_midi)
+-		return &midi_synth_dev;
+-	if ((rec = get_sdev(dev)) == NULL)
++	if (!info->opened)
+ 		return NULL;
++	if (info->is_midi) {
++		rec = &midi_synth_dev;
++		snd_use_lock_use(&rec->use_lock);
++	} else {
++		rec = get_sdev(dev);
++		if (!rec)
++			return NULL;
++	}
+ 	if (! rec->opened) {
+ 		snd_use_lock_free(&rec->use_lock);
+ 		return NULL;
+@@ -402,10 +405,8 @@ snd_seq_oss_synth_reset(struct seq_oss_devinfo *dp, int dev)
+ 	struct seq_oss_synth *rec;
+ 	struct seq_oss_synthinfo *info;
+ 
+-	if (snd_BUG_ON(dev < 0 || dev >= dp->max_synthdev))
+-		return;
+-	info = &dp->synths[dev];
+-	if (! info->opened)
++	info = get_synthinfo_nospec(dp, dev);
++	if (!info || !info->opened)
+ 		return;
+ 	if (info->sysex)
+ 		info->sysex->len = 0; /* reset sysex */
+@@ -454,12 +455,14 @@ snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt,
+ 			    const char __user *buf, int p, int c)
+ {
+ 	struct seq_oss_synth *rec;
++	struct seq_oss_synthinfo *info;
+ 	int rc;
+ 
+-	if (dev < 0 || dev >= dp->max_synthdev)
++	info = get_synthinfo_nospec(dp, dev);
++	if (!info)
+ 		return -ENXIO;
+ 
+-	if (is_midi_dev(dp, dev))
++	if (info->is_midi)
+ 		return 0;
+ 	if ((rec = get_synthdev(dp, dev)) == NULL)
+ 		return -ENXIO;
+@@ -467,24 +470,25 @@ snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt,
+ 	if (rec->oper.load_patch == NULL)
+ 		rc = -ENXIO;
+ 	else
+-		rc = rec->oper.load_patch(&dp->synths[dev].arg, fmt, buf, p, c);
++		rc = rec->oper.load_patch(&info->arg, fmt, buf, p, c);
+ 	snd_use_lock_free(&rec->use_lock);
+ 	return rc;
+ }
+ 
+ /*
+- * check if the device is valid synth device
++ * check if the device is valid synth device and return the synth info
+  */
+-int
+-snd_seq_oss_synth_is_valid(struct seq_oss_devinfo *dp, int dev)
++struct seq_oss_synthinfo *
++snd_seq_oss_synth_info(struct seq_oss_devinfo *dp, int dev)
+ {
+ 	struct seq_oss_synth *rec;
++
+ 	rec = get_synthdev(dp, dev);
+ 	if (rec) {
+ 		snd_use_lock_free(&rec->use_lock);
+-		return 1;
++		return get_synthinfo_nospec(dp, dev);
+ 	}
+-	return 0;
++	return NULL;
+ }
+ 
+ 
+@@ -499,16 +503,18 @@ snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf,
+ 	int i, send;
+ 	unsigned char *dest;
+ 	struct seq_oss_synth_sysex *sysex;
++	struct seq_oss_synthinfo *info;
+ 
+-	if (! snd_seq_oss_synth_is_valid(dp, dev))
++	info = snd_seq_oss_synth_info(dp, dev);
++	if (!info)
+ 		return -ENXIO;
+ 
+-	sysex = dp->synths[dev].sysex;
++	sysex = info->sysex;
+ 	if (sysex == NULL) {
+ 		sysex = kzalloc(sizeof(*sysex), GFP_KERNEL);
+ 		if (sysex == NULL)
+ 			return -ENOMEM;
+-		dp->synths[dev].sysex = sysex;
++		info->sysex = sysex;
+ 	}
+ 
+ 	send = 0;
+@@ -553,10 +559,12 @@ snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf,
+ int
+ snd_seq_oss_synth_addr(struct seq_oss_devinfo *dp, int dev, struct snd_seq_event *ev)
+ {
+-	if (! snd_seq_oss_synth_is_valid(dp, dev))
++	struct seq_oss_synthinfo *info = snd_seq_oss_synth_info(dp, dev);
++
++	if (!info)
+ 		return -EINVAL;
+-	snd_seq_oss_fill_addr(dp, ev, dp->synths[dev].arg.addr.client,
+-			      dp->synths[dev].arg.addr.port);
++	snd_seq_oss_fill_addr(dp, ev, info->arg.addr.client,
++			      info->arg.addr.port);
+ 	return 0;
+ }
+ 
+@@ -568,16 +576,18 @@ int
+ snd_seq_oss_synth_ioctl(struct seq_oss_devinfo *dp, int dev, unsigned int cmd, unsigned long addr)
+ {
+ 	struct seq_oss_synth *rec;
++	struct seq_oss_synthinfo *info;
+ 	int rc;
+ 
+-	if (is_midi_dev(dp, dev))
++	info = get_synthinfo_nospec(dp, dev);
++	if (!info || info->is_midi)
+ 		return -ENXIO;
+ 	if ((rec = get_synthdev(dp, dev)) == NULL)
+ 		return -ENXIO;
+ 	if (rec->oper.ioctl == NULL)
+ 		rc = -ENXIO;
+ 	else
+-		rc = rec->oper.ioctl(&dp->synths[dev].arg, cmd, addr);
++		rc = rec->oper.ioctl(&info->arg, cmd, addr);
+ 	snd_use_lock_free(&rec->use_lock);
+ 	return rc;
+ }
+@@ -589,7 +599,10 @@ snd_seq_oss_synth_ioctl(struct seq_oss_devinfo *dp, int dev, unsigned int cmd, u
+ int
+ snd_seq_oss_synth_raw_event(struct seq_oss_devinfo *dp, int dev, unsigned char *data, struct snd_seq_event *ev)
+ {
+-	if (! snd_seq_oss_synth_is_valid(dp, dev) || is_midi_dev(dp, dev))
++	struct seq_oss_synthinfo *info;
++
++	info = snd_seq_oss_synth_info(dp, dev);
++	if (!info || info->is_midi)
+ 		return -ENXIO;
+ 	ev->type = SNDRV_SEQ_EVENT_OSS;
+ 	memcpy(ev->data.raw8.d, data, 8);
+diff --git a/sound/core/seq/oss/seq_oss_synth.h b/sound/core/seq/oss/seq_oss_synth.h
+index 74ac55f166b6..a63f9e22974d 100644
+--- a/sound/core/seq/oss/seq_oss_synth.h
++++ b/sound/core/seq/oss/seq_oss_synth.h
+@@ -37,7 +37,8 @@ void snd_seq_oss_synth_cleanup(struct seq_oss_devinfo *dp);
+ void snd_seq_oss_synth_reset(struct seq_oss_devinfo *dp, int dev);
+ int snd_seq_oss_synth_load_patch(struct seq_oss_devinfo *dp, int dev, int fmt,
+ 				 const char __user *buf, int p, int c);
+-int snd_seq_oss_synth_is_valid(struct seq_oss_devinfo *dp, int dev);
++struct seq_oss_synthinfo *snd_seq_oss_synth_info(struct seq_oss_devinfo *dp,
++						 int dev);
+ int snd_seq_oss_synth_sysex(struct seq_oss_devinfo *dp, int dev, unsigned char *buf,
+ 			    struct snd_seq_event *ev);
+ int snd_seq_oss_synth_addr(struct seq_oss_devinfo *dp, int dev, struct snd_seq_event *ev);
+diff --git a/sound/drivers/opl3/opl3_synth.c b/sound/drivers/opl3/opl3_synth.c
+index ddcc1a325a61..42920a243328 100644
+--- a/sound/drivers/opl3/opl3_synth.c
++++ b/sound/drivers/opl3/opl3_synth.c
+@@ -21,6 +21,7 @@
+ 
+ #include <linux/slab.h>
+ #include <linux/export.h>
++#include <linux/nospec.h>
+ #include <sound/opl3.h>
+ #include <sound/asound_fm.h>
+ 
+@@ -448,7 +449,7 @@ static int snd_opl3_set_voice(struct snd_opl3 * opl3, struct snd_dm_fm_voice * v
+ {
+ 	unsigned short reg_side;
+ 	unsigned char op_offset;
+-	unsigned char voice_offset;
++	unsigned char voice_offset, voice_op;
+ 
+ 	unsigned short opl3_reg;
+ 	unsigned char reg_val;
+@@ -473,7 +474,9 @@ static int snd_opl3_set_voice(struct snd_opl3 * opl3, struct snd_dm_fm_voice * v
+ 		voice_offset = voice->voice - MAX_OPL2_VOICES;
+ 	}
+ 	/* Get register offset of operator */
+-	op_offset = snd_opl3_regmap[voice_offset][voice->op];
++	voice_offset = array_index_nospec(voice_offset, MAX_OPL2_VOICES);
++	voice_op = array_index_nospec(voice->op, 4);
++	op_offset = snd_opl3_regmap[voice_offset][voice_op];
+ 
+ 	reg_val = 0x00;
+ 	/* Set amplitude modulation (tremolo) effect */
+diff --git a/sound/firewire/dice/dice-stream.c b/sound/firewire/dice/dice-stream.c
+index 8573289c381e..928a255bfc35 100644
+--- a/sound/firewire/dice/dice-stream.c
++++ b/sound/firewire/dice/dice-stream.c
+@@ -435,7 +435,7 @@ int snd_dice_stream_init_duplex(struct snd_dice *dice)
+ 		err = init_stream(dice, AMDTP_IN_STREAM, i);
+ 		if (err < 0) {
+ 			for (; i >= 0; i--)
+-				destroy_stream(dice, AMDTP_OUT_STREAM, i);
++				destroy_stream(dice, AMDTP_IN_STREAM, i);
+ 			goto end;
+ 		}
+ 	}
+diff --git a/sound/firewire/dice/dice.c b/sound/firewire/dice/dice.c
+index 4ddb4cdd054b..96bb01b6b751 100644
+--- a/sound/firewire/dice/dice.c
++++ b/sound/firewire/dice/dice.c
+@@ -14,7 +14,7 @@ MODULE_LICENSE("GPL v2");
+ #define OUI_WEISS		0x001c6a
+ #define OUI_LOUD		0x000ff2
+ #define OUI_FOCUSRITE		0x00130e
+-#define OUI_TCELECTRONIC	0x001486
++#define OUI_TCELECTRONIC	0x000166
+ 
+ #define DICE_CATEGORY_ID	0x04
+ #define WEISS_CATEGORY_ID	0x00
+diff --git a/sound/pci/asihpi/hpimsginit.c b/sound/pci/asihpi/hpimsginit.c
+index 7eb617175fde..a31a70dccecf 100644
+--- a/sound/pci/asihpi/hpimsginit.c
++++ b/sound/pci/asihpi/hpimsginit.c
+@@ -23,6 +23,7 @@
+ 
+ #include "hpi_internal.h"
+ #include "hpimsginit.h"
++#include <linux/nospec.h>
+ 
+ /* The actual message size for each object type */
+ static u16 msg_size[HPI_OBJ_MAXINDEX + 1] = HPI_MESSAGE_SIZE_BY_OBJECT;
+@@ -39,10 +40,12 @@ static void hpi_init_message(struct hpi_message *phm, u16 object,
+ {
+ 	u16 size;
+ 
+-	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX))
++	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) {
++		object = array_index_nospec(object, HPI_OBJ_MAXINDEX + 1);
+ 		size = msg_size[object];
+-	else
++	} else {
+ 		size = sizeof(*phm);
++	}
+ 
+ 	memset(phm, 0, size);
+ 	phm->size = size;
+@@ -66,10 +69,12 @@ void hpi_init_response(struct hpi_response *phr, u16 object, u16 function,
+ {
+ 	u16 size;
+ 
+-	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX))
++	if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) {
++		object = array_index_nospec(object, HPI_OBJ_MAXINDEX + 1);
+ 		size = res_size[object];
+-	else
++	} else {
+ 		size = sizeof(*phr);
++	}
+ 
+ 	memset(phr, 0, sizeof(*phr));
+ 	phr->size = size;
+diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c
+index 5badd08e1d69..b1a2a7ea4172 100644
+--- a/sound/pci/asihpi/hpioctl.c
++++ b/sound/pci/asihpi/hpioctl.c
+@@ -33,6 +33,7 @@
+ #include <linux/stringify.h>
+ #include <linux/module.h>
+ #include <linux/vmalloc.h>
++#include <linux/nospec.h>
+ 
+ #ifdef MODULE_FIRMWARE
+ MODULE_FIRMWARE("asihpi/dsp5000.bin");
+@@ -186,7 +187,8 @@ long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+ 		struct hpi_adapter *pa = NULL;
+ 
+ 		if (hm->h.adapter_index < ARRAY_SIZE(adapters))
+-			pa = &adapters[hm->h.adapter_index];
++			pa = &adapters[array_index_nospec(hm->h.adapter_index,
++							  ARRAY_SIZE(adapters))];
+ 
+ 		if (!pa || !pa->adapter || !pa->adapter->type) {
+ 			hpi_init_response(&hr->r0, hm->h.object,
+diff --git a/sound/pci/hda/hda_hwdep.c b/sound/pci/hda/hda_hwdep.c
+index 57df06e76968..cc009a4a3d1d 100644
+--- a/sound/pci/hda/hda_hwdep.c
++++ b/sound/pci/hda/hda_hwdep.c
+@@ -21,6 +21,7 @@
+ #include <linux/init.h>
+ #include <linux/slab.h>
+ #include <linux/compat.h>
++#include <linux/nospec.h>
+ #include <sound/core.h>
+ #include "hda_codec.h"
+ #include "hda_local.h"
+@@ -51,7 +52,16 @@ static int get_wcap_ioctl(struct hda_codec *codec,
+ 	
+ 	if (get_user(verb, &arg->verb))
+ 		return -EFAULT;
+-	res = get_wcaps(codec, verb >> 24);
++	/* open-code get_wcaps(verb>>24) with nospec */
++	verb >>= 24;
++	if (verb < codec->core.start_nid ||
++	    verb >= codec->core.start_nid + codec->core.num_nodes) {
++		res = 0;
++	} else {
++		verb -= codec->core.start_nid;
++		verb = array_index_nospec(verb, codec->core.num_nodes);
++		res = codec->wcaps[verb];
++	}
+ 	if (put_user(res, &arg->res))
+ 		return -EFAULT;
+ 	return 0;
+diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
+index b4f1b6e88305..7d7eb1354eee 100644
+--- a/sound/pci/hda/patch_hdmi.c
++++ b/sound/pci/hda/patch_hdmi.c
+@@ -1383,6 +1383,8 @@ static void hdmi_pcm_setup_pin(struct hdmi_spec *spec,
+ 		pcm = get_pcm_rec(spec, per_pin->pcm_idx);
+ 	else
+ 		return;
++	if (!pcm->pcm)
++		return;
+ 	if (!test_bit(per_pin->pcm_idx, &spec->pcm_in_use))
+ 		return;
+ 
+@@ -2151,8 +2153,13 @@ static int generic_hdmi_build_controls(struct hda_codec *codec)
+ 	int dev, err;
+ 	int pin_idx, pcm_idx;
+ 
+-
+ 	for (pcm_idx = 0; pcm_idx < spec->pcm_used; pcm_idx++) {
++		if (!get_pcm_rec(spec, pcm_idx)->pcm) {
++			/* no PCM: mark this for skipping permanently */
++			set_bit(pcm_idx, &spec->pcm_bitmap);
++			continue;
++		}
++
+ 		err = generic_hdmi_build_jack(codec, pcm_idx);
+ 		if (err < 0)
+ 			return err;
+diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
+index 590887d9b7a1..59daf9901466 100644
+--- a/sound/pci/hda/patch_realtek.c
++++ b/sound/pci/hda/patch_realtek.c
+@@ -331,6 +331,7 @@ static void alc_fill_eapd_coef(struct hda_codec *codec)
+ 		/* fallthrough */
+ 	case 0x10ec0215:
+ 	case 0x10ec0233:
++	case 0x10ec0235:
+ 	case 0x10ec0236:
+ 	case 0x10ec0255:
+ 	case 0x10ec0256:
+@@ -6435,6 +6436,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
+ 	SND_PCI_QUIRK(0x17aa, 0x30bb, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+ 	SND_PCI_QUIRK(0x17aa, 0x30e2, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+ 	SND_PCI_QUIRK(0x17aa, 0x310c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
++	SND_PCI_QUIRK(0x17aa, 0x312f, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
+ 	SND_PCI_QUIRK(0x17aa, 0x3138, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
+ 	SND_PCI_QUIRK(0x17aa, 0x313c, "ThinkCentre Station", ALC294_FIXUP_LENOVO_MIC_LOCATION),
+ 	SND_PCI_QUIRK(0x17aa, 0x3112, "ThinkCentre AIO", ALC233_FIXUP_LENOVO_LINE2_MIC_HOTKEY),
+@@ -7015,8 +7017,11 @@ static int patch_alc269(struct hda_codec *codec)
+ 	case 0x10ec0298:
+ 		spec->codec_variant = ALC269_TYPE_ALC298;
+ 		break;
++	case 0x10ec0235:
+ 	case 0x10ec0255:
+ 		spec->codec_variant = ALC269_TYPE_ALC255;
++		spec->shutup = alc256_shutup;
++		spec->init_hook = alc256_init;
+ 		break;
+ 	case 0x10ec0236:
+ 	case 0x10ec0256:
+diff --git a/sound/pci/rme9652/hdspm.c b/sound/pci/rme9652/hdspm.c
+index f20d42714e4d..343f533906ba 100644
+--- a/sound/pci/rme9652/hdspm.c
++++ b/sound/pci/rme9652/hdspm.c
+@@ -137,6 +137,7 @@
+ #include <linux/pci.h>
+ #include <linux/math64.h>
+ #include <linux/io.h>
++#include <linux/nospec.h>
+ 
+ #include <sound/core.h>
+ #include <sound/control.h>
+@@ -5698,40 +5699,43 @@ static int snd_hdspm_channel_info(struct snd_pcm_substream *substream,
+ 		struct snd_pcm_channel_info *info)
+ {
+ 	struct hdspm *hdspm = snd_pcm_substream_chip(substream);
++	unsigned int channel = info->channel;
+ 
+ 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+-		if (snd_BUG_ON(info->channel >= hdspm->max_channels_out)) {
++		if (snd_BUG_ON(channel >= hdspm->max_channels_out)) {
+ 			dev_info(hdspm->card->dev,
+ 				 "snd_hdspm_channel_info: output channel out of range (%d)\n",
+-				 info->channel);
++				 channel);
+ 			return -EINVAL;
+ 		}
+ 
+-		if (hdspm->channel_map_out[info->channel] < 0) {
++		channel = array_index_nospec(channel, hdspm->max_channels_out);
++		if (hdspm->channel_map_out[channel] < 0) {
+ 			dev_info(hdspm->card->dev,
+ 				 "snd_hdspm_channel_info: output channel %d mapped out\n",
+-				 info->channel);
++				 channel);
+ 			return -EINVAL;
+ 		}
+ 
+-		info->offset = hdspm->channel_map_out[info->channel] *
++		info->offset = hdspm->channel_map_out[channel] *
+ 			HDSPM_CHANNEL_BUFFER_BYTES;
+ 	} else {
+-		if (snd_BUG_ON(info->channel >= hdspm->max_channels_in)) {
++		if (snd_BUG_ON(channel >= hdspm->max_channels_in)) {
+ 			dev_info(hdspm->card->dev,
+ 				 "snd_hdspm_channel_info: input channel out of range (%d)\n",
+-				 info->channel);
++				 channel);
+ 			return -EINVAL;
+ 		}
+ 
+-		if (hdspm->channel_map_in[info->channel] < 0) {
++		channel = array_index_nospec(channel, hdspm->max_channels_in);
++		if (hdspm->channel_map_in[channel] < 0) {
+ 			dev_info(hdspm->card->dev,
+ 				 "snd_hdspm_channel_info: input channel %d mapped out\n",
+-				 info->channel);
++				 channel);
+ 			return -EINVAL;
+ 		}
+ 
+-		info->offset = hdspm->channel_map_in[info->channel] *
++		info->offset = hdspm->channel_map_in[channel] *
+ 			HDSPM_CHANNEL_BUFFER_BYTES;
+ 	}
+ 
+diff --git a/sound/pci/rme9652/rme9652.c b/sound/pci/rme9652/rme9652.c
+index df648b1d9217..edd765e22377 100644
+--- a/sound/pci/rme9652/rme9652.c
++++ b/sound/pci/rme9652/rme9652.c
+@@ -26,6 +26,7 @@
+ #include <linux/pci.h>
+ #include <linux/module.h>
+ #include <linux/io.h>
++#include <linux/nospec.h>
+ 
+ #include <sound/core.h>
+ #include <sound/control.h>
+@@ -2071,9 +2072,10 @@ static int snd_rme9652_channel_info(struct snd_pcm_substream *substream,
+ 	if (snd_BUG_ON(info->channel >= RME9652_NCHANNELS))
+ 		return -EINVAL;
+ 
+-	if ((chn = rme9652->channel_map[info->channel]) < 0) {
++	chn = rme9652->channel_map[array_index_nospec(info->channel,
++						      RME9652_NCHANNELS)];
++	if (chn < 0)
+ 		return -EINVAL;
+-	}
+ 
+ 	info->offset = chn * RME9652_CHANNEL_BUFFER_BYTES;
+ 	info->first = 0;
+diff --git a/sound/soc/fsl/fsl_esai.c b/sound/soc/fsl/fsl_esai.c
+index cef79a1a620b..81268760b7a9 100644
+--- a/sound/soc/fsl/fsl_esai.c
++++ b/sound/soc/fsl/fsl_esai.c
+@@ -144,6 +144,13 @@ static int fsl_esai_divisor_cal(struct snd_soc_dai *dai, bool tx, u32 ratio,
+ 
+ 	psr = ratio <= 256 * maxfp ? ESAI_xCCR_xPSR_BYPASS : ESAI_xCCR_xPSR_DIV8;
+ 
++	/* Do not loop-search if PM (1 ~ 256) alone can serve the ratio */
++	if (ratio <= 256) {
++		pm = ratio;
++		fp = 1;
++		goto out;
++	}
++
+ 	/* Set the max fluctuation -- 0.1% of the max devisor */
+ 	savesub = (psr ? 1 : 8)  * 256 * maxfp / 1000;
+ 
+diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c
+index 9038b2e7df73..eaa03acd4686 100644
+--- a/sound/usb/mixer_maps.c
++++ b/sound/usb/mixer_maps.c
+@@ -353,8 +353,11 @@ static struct usbmix_name_map bose_companion5_map[] = {
+ /*
+  * Dell usb dock with ALC4020 codec had a firmware problem where it got
+  * screwed up when zero volume is passed; just skip it as a workaround
++ *
++ * Also the extension unit gives an access error, so skip it as well.
+  */
+ static const struct usbmix_name_map dell_alc4020_map[] = {
++	{ 4, NULL },	/* extension unit */
+ 	{ 16, NULL },
+ 	{ 19, NULL },
+ 	{ 0 }
+diff --git a/tools/lib/str_error_r.c b/tools/lib/str_error_r.c
+index d6d65537b0d9..6aad8308a0ac 100644
+--- a/tools/lib/str_error_r.c
++++ b/tools/lib/str_error_r.c
+@@ -22,6 +22,6 @@ char *str_error_r(int errnum, char *buf, size_t buflen)
+ {
+ 	int err = strerror_r(errnum, buf, buflen);
+ 	if (err)
+-		snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, %p, %zd)=%d", errnum, buf, buflen, err);
++		snprintf(buf, buflen, "INTERNAL ERROR: strerror_r(%d, [buf], %zd)=%d", errnum, buflen, err);
+ 	return buf;
+ }
+diff --git a/tools/lib/subcmd/pager.c b/tools/lib/subcmd/pager.c
+index 5ba754d17952..9997a8805a82 100644
+--- a/tools/lib/subcmd/pager.c
++++ b/tools/lib/subcmd/pager.c
+@@ -30,10 +30,13 @@ static void pager_preexec(void)
+ 	 * have real input
+ 	 */
+ 	fd_set in;
++	fd_set exception;
+ 
+ 	FD_ZERO(&in);
++	FD_ZERO(&exception);
+ 	FD_SET(0, &in);
+-	select(1, &in, NULL, &in, NULL);
++	FD_SET(0, &exception);
++	select(1, &in, NULL, &exception, NULL);
+ 
+ 	setenv("LESS", "FRSX", 0);
+ }
+diff --git a/virt/kvm/arm/arm.c b/virt/kvm/arm/arm.c
+index 1366462a3ab2..9bee849db682 100644
+--- a/virt/kvm/arm/arm.c
++++ b/virt/kvm/arm/arm.c
+@@ -61,7 +61,7 @@ static DEFINE_PER_CPU(struct kvm_vcpu *, kvm_arm_running_vcpu);
+ static atomic64_t kvm_vmid_gen = ATOMIC64_INIT(1);
+ static u32 kvm_next_vmid;
+ static unsigned int kvm_vmid_bits __read_mostly;
+-static DEFINE_SPINLOCK(kvm_vmid_lock);
++static DEFINE_RWLOCK(kvm_vmid_lock);
+ 
+ static bool vgic_present;
+ 
+@@ -462,11 +462,16 @@ static void update_vttbr(struct kvm *kvm)
+ {
+ 	phys_addr_t pgd_phys;
+ 	u64 vmid;
++	bool new_gen;
+ 
+-	if (!need_new_vmid_gen(kvm))
++	read_lock(&kvm_vmid_lock);
++	new_gen = need_new_vmid_gen(kvm);
++	read_unlock(&kvm_vmid_lock);
++
++	if (!new_gen)
+ 		return;
+ 
+-	spin_lock(&kvm_vmid_lock);
++	write_lock(&kvm_vmid_lock);
+ 
+ 	/*
+ 	 * We need to re-check the vmid_gen here to ensure that if another vcpu
+@@ -474,7 +479,7 @@ static void update_vttbr(struct kvm *kvm)
+ 	 * use the same vmid.
+ 	 */
+ 	if (!need_new_vmid_gen(kvm)) {
+-		spin_unlock(&kvm_vmid_lock);
++		write_unlock(&kvm_vmid_lock);
+ 		return;
+ 	}
+ 
+@@ -508,7 +513,7 @@ static void update_vttbr(struct kvm *kvm)
+ 	vmid = ((u64)(kvm->arch.vmid) << VTTBR_VMID_SHIFT) & VTTBR_VMID_MASK(kvm_vmid_bits);
+ 	kvm->arch.vttbr = pgd_phys | vmid;
+ 
+-	spin_unlock(&kvm_vmid_lock);
++	write_unlock(&kvm_vmid_lock);
+ }
+ 
+ static int kvm_vcpu_first_run_init(struct kvm_vcpu *vcpu)
+diff --git a/virt/kvm/arm/psci.c b/virt/kvm/arm/psci.c
+index 6919352cbf15..c4762bef13c6 100644
+--- a/virt/kvm/arm/psci.c
++++ b/virt/kvm/arm/psci.c
+@@ -18,6 +18,7 @@
+ #include <linux/arm-smccc.h>
+ #include <linux/preempt.h>
+ #include <linux/kvm_host.h>
++#include <linux/uaccess.h>
+ #include <linux/wait.h>
+ 
+ #include <asm/cputype.h>
+@@ -427,3 +428,62 @@ int kvm_hvc_call_handler(struct kvm_vcpu *vcpu)
+ 	smccc_set_retval(vcpu, val, 0, 0, 0);
+ 	return 1;
+ }
++
++int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu)
++{
++	return 1;		/* PSCI version */
++}
++
++int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices)
++{
++	if (put_user(KVM_REG_ARM_PSCI_VERSION, uindices))
++		return -EFAULT;
++
++	return 0;
++}
++
++int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
++{
++	if (reg->id == KVM_REG_ARM_PSCI_VERSION) {
++		void __user *uaddr = (void __user *)(long)reg->addr;
++		u64 val;
++
++		val = kvm_psci_version(vcpu, vcpu->kvm);
++		if (copy_to_user(uaddr, &val, KVM_REG_SIZE(reg->id)))
++			return -EFAULT;
++
++		return 0;
++	}
++
++	return -EINVAL;
++}
++
++int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg)
++{
++	if (reg->id == KVM_REG_ARM_PSCI_VERSION) {
++		void __user *uaddr = (void __user *)(long)reg->addr;
++		bool wants_02;
++		u64 val;
++
++		if (copy_from_user(&val, uaddr, KVM_REG_SIZE(reg->id)))
++			return -EFAULT;
++
++		wants_02 = test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features);
++
++		switch (val) {
++		case KVM_ARM_PSCI_0_1:
++			if (wants_02)
++				return -EINVAL;
++			vcpu->kvm->arch.psci_version = val;
++			return 0;
++		case KVM_ARM_PSCI_0_2:
++		case KVM_ARM_PSCI_1_0:
++			if (!wants_02)
++				return -EINVAL;
++			vcpu->kvm->arch.psci_version = val;
++			return 0;
++		}
++	}
++
++	return -EINVAL;
++}