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

[Mike Pagano]

commit:     22ef91783c01811b111fe515ead18c5f4336220b
Author:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
AuthorDate: Wed Apr  3 10:48:06 2019 +0000
Commit:     Mike Pagano <mpagano <AT> gentoo <DOT> org>
CommitDate: Wed Apr  3 10:48:06 2019 +0000
URL:        https://gitweb.gentoo.org/proj/linux-patches.git/commit/?id=22ef9178

Linux patch 4.9.167

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

 0000_README              |    4 +
 1166_linux-4.9.167.patch | 1840 ++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 1844 insertions(+)

diff --git a/0000_README b/0000_README
index 64cbb0c..112b631 100644
--- a/0000_README
+++ b/0000_README
@@ -707,6 +707,10 @@ Patch:  1165_linux-4.9.166.patch
 From:   http://www.kernel.org
 Desc:   Linux 4.9.166
 
+Patch:  1166_linux-4.9.167.patch
+From:   http://www.kernel.org
+Desc:   Linux 4.9.167
+
 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/1166_linux-4.9.167.patch b/1166_linux-4.9.167.patch
new file mode 100644
index 0000000..6d6de0d
--- /dev/null
+++ b/1166_linux-4.9.167.patch
@@ -0,0 +1,1840 @@
+diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
+index 3ff58a8ffabb..d1908e50b506 100644
+--- a/Documentation/virtual/kvm/api.txt
++++ b/Documentation/virtual/kvm/api.txt
+@@ -13,7 +13,7 @@ of a virtual machine.  The ioctls belong to three classes
+ 
+  - VM ioctls: These query and set attributes that affect an entire virtual
+    machine, for example memory layout.  In addition a VM ioctl is used to
+-   create virtual cpus (vcpus).
++   create virtual cpus (vcpus) and devices.
+ 
+    Only run VM ioctls from the same process (address space) that was used
+    to create the VM.
+@@ -24,6 +24,11 @@ of a virtual machine.  The ioctls belong to three classes
+    Only run vcpu ioctls from the same thread that was used to create the
+    vcpu.
+ 
++ - device ioctls: These query and set attributes that control the operation
++   of a single device.
++
++   device ioctls must be issued from the same process (address space) that
++   was used to create the VM.
+ 
+ 2. File descriptors
+ -------------------
+@@ -32,10 +37,11 @@ The kvm API is centered around file descriptors.  An initial
+ open("/dev/kvm") obtains a handle to the kvm subsystem; this handle
+ can be used to issue system ioctls.  A KVM_CREATE_VM ioctl on this
+ handle will create a VM file descriptor which can be used to issue VM
+-ioctls.  A KVM_CREATE_VCPU ioctl on a VM fd will create a virtual cpu
+-and return a file descriptor pointing to it.  Finally, ioctls on a vcpu
+-fd can be used to control the vcpu, including the important task of
+-actually running guest code.
++ioctls.  A KVM_CREATE_VCPU or KVM_CREATE_DEVICE ioctl on a VM fd will
++create a virtual cpu or device and return a file descriptor pointing to
++the new resource.  Finally, ioctls on a vcpu or device fd can be used
++to control the vcpu or device.  For vcpus, this includes the important
++task of actually running guest code.
+ 
+ In general file descriptors can be migrated among processes by means
+ of fork() and the SCM_RIGHTS facility of unix domain socket.  These
+diff --git a/Makefile b/Makefile
+index 90478086eff5..2f030baeb162 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 166
++SUBLEVEL = 167
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+ 
+diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c
+index bfeb25aaf9a2..326e870d7123 100644
+--- a/arch/arm/mach-imx/cpuidle-imx6q.c
++++ b/arch/arm/mach-imx/cpuidle-imx6q.c
+@@ -16,30 +16,23 @@
+ #include "cpuidle.h"
+ #include "hardware.h"
+ 
+-static atomic_t master = ATOMIC_INIT(0);
+-static DEFINE_SPINLOCK(master_lock);
++static int num_idle_cpus = 0;
++static DEFINE_SPINLOCK(cpuidle_lock);
+ 
+ static int imx6q_enter_wait(struct cpuidle_device *dev,
+ 			    struct cpuidle_driver *drv, int index)
+ {
+-	if (atomic_inc_return(&master) == num_online_cpus()) {
+-		/*
+-		 * With this lock, we prevent other cpu to exit and enter
+-		 * this function again and become the master.
+-		 */
+-		if (!spin_trylock(&master_lock))
+-			goto idle;
++	spin_lock(&cpuidle_lock);
++	if (++num_idle_cpus == num_online_cpus())
+ 		imx6_set_lpm(WAIT_UNCLOCKED);
+-		cpu_do_idle();
+-		imx6_set_lpm(WAIT_CLOCKED);
+-		spin_unlock(&master_lock);
+-		goto done;
+-	}
++	spin_unlock(&cpuidle_lock);
+ 
+-idle:
+ 	cpu_do_idle();
+-done:
+-	atomic_dec(&master);
++
++	spin_lock(&cpuidle_lock);
++	if (num_idle_cpus-- == num_online_cpus())
++		imx6_set_lpm(WAIT_CLOCKED);
++	spin_unlock(&cpuidle_lock);
+ 
+ 	return index;
+ }
+diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
+index 3e43874568f9..2eb8ae1b2d03 100644
+--- a/arch/arm64/Kconfig
++++ b/arch/arm64/Kconfig
+@@ -1079,6 +1079,10 @@ config SYSVIPC_COMPAT
+ 	def_bool y
+ 	depends on COMPAT && SYSVIPC
+ 
++config KEYS_COMPAT
++	def_bool y
++	depends on COMPAT && KEYS
++
+ endmenu
+ 
+ menu "Power management options"
+diff --git a/arch/powerpc/include/asm/ppc-opcode.h b/arch/powerpc/include/asm/ppc-opcode.h
+index c4ced1d01d57..48e8f1f14872 100644
+--- a/arch/powerpc/include/asm/ppc-opcode.h
++++ b/arch/powerpc/include/asm/ppc-opcode.h
+@@ -225,6 +225,7 @@
+ /* Misc instructions for BPF compiler */
+ #define PPC_INST_LBZ			0x88000000
+ #define PPC_INST_LD			0xe8000000
++#define PPC_INST_LDX			0x7c00002a
+ #define PPC_INST_LHZ			0xa0000000
+ #define PPC_INST_LWZ			0x80000000
+ #define PPC_INST_LHBRX			0x7c00062c
+@@ -232,6 +233,7 @@
+ #define PPC_INST_STB			0x98000000
+ #define PPC_INST_STH			0xb0000000
+ #define PPC_INST_STD			0xf8000000
++#define PPC_INST_STDX			0x7c00012a
+ #define PPC_INST_STDU			0xf8000001
+ #define PPC_INST_STW			0x90000000
+ #define PPC_INST_STWU			0x94000000
+diff --git a/arch/powerpc/net/bpf_jit.h b/arch/powerpc/net/bpf_jit.h
+index 89f70073dec8..7b1d1721a26a 100644
+--- a/arch/powerpc/net/bpf_jit.h
++++ b/arch/powerpc/net/bpf_jit.h
+@@ -51,6 +51,8 @@
+ #define PPC_LIS(r, i)		PPC_ADDIS(r, 0, i)
+ #define PPC_STD(r, base, i)	EMIT(PPC_INST_STD | ___PPC_RS(r) |	      \
+ 				     ___PPC_RA(base) | ((i) & 0xfffc))
++#define PPC_STDX(r, base, b)	EMIT(PPC_INST_STDX | ___PPC_RS(r) |	      \
++				     ___PPC_RA(base) | ___PPC_RB(b))
+ #define PPC_STDU(r, base, i)	EMIT(PPC_INST_STDU | ___PPC_RS(r) |	      \
+ 				     ___PPC_RA(base) | ((i) & 0xfffc))
+ #define PPC_STW(r, base, i)	EMIT(PPC_INST_STW | ___PPC_RS(r) |	      \
+@@ -65,7 +67,9 @@
+ #define PPC_LBZ(r, base, i)	EMIT(PPC_INST_LBZ | ___PPC_RT(r) |	      \
+ 				     ___PPC_RA(base) | IMM_L(i))
+ #define PPC_LD(r, base, i)	EMIT(PPC_INST_LD | ___PPC_RT(r) |	      \
+-				     ___PPC_RA(base) | IMM_L(i))
++				     ___PPC_RA(base) | ((i) & 0xfffc))
++#define PPC_LDX(r, base, b)	EMIT(PPC_INST_LDX | ___PPC_RT(r) |	      \
++				     ___PPC_RA(base) | ___PPC_RB(b))
+ #define PPC_LWZ(r, base, i)	EMIT(PPC_INST_LWZ | ___PPC_RT(r) |	      \
+ 				     ___PPC_RA(base) | IMM_L(i))
+ #define PPC_LHZ(r, base, i)	EMIT(PPC_INST_LHZ | ___PPC_RT(r) |	      \
+@@ -85,17 +89,6 @@
+ 					___PPC_RA(a) | ___PPC_RB(b))
+ #define PPC_BPF_STDCX(s, a, b)	EMIT(PPC_INST_STDCX | ___PPC_RS(s) |	      \
+ 					___PPC_RA(a) | ___PPC_RB(b))
+-
+-#ifdef CONFIG_PPC64
+-#define PPC_BPF_LL(r, base, i) do { PPC_LD(r, base, i); } while(0)
+-#define PPC_BPF_STL(r, base, i) do { PPC_STD(r, base, i); } while(0)
+-#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0)
+-#else
+-#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0)
+-#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0)
+-#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0)
+-#endif
+-
+ #define PPC_CMPWI(a, i)		EMIT(PPC_INST_CMPWI | ___PPC_RA(a) | IMM_L(i))
+ #define PPC_CMPDI(a, i)		EMIT(PPC_INST_CMPDI | ___PPC_RA(a) | IMM_L(i))
+ #define PPC_CMPW(a, b)		EMIT(PPC_INST_CMPW | ___PPC_RA(a) |	      \
+diff --git a/arch/powerpc/net/bpf_jit32.h b/arch/powerpc/net/bpf_jit32.h
+index a8cd7e289ecd..81a9045d8410 100644
+--- a/arch/powerpc/net/bpf_jit32.h
++++ b/arch/powerpc/net/bpf_jit32.h
+@@ -122,6 +122,10 @@ DECLARE_LOAD_FUNC(sk_load_byte_msh);
+ #define PPC_NTOHS_OFFS(r, base, i)	PPC_LHZ_OFFS(r, base, i)
+ #endif
+ 
++#define PPC_BPF_LL(r, base, i) do { PPC_LWZ(r, base, i); } while(0)
++#define PPC_BPF_STL(r, base, i) do { PPC_STW(r, base, i); } while(0)
++#define PPC_BPF_STLU(r, base, i) do { PPC_STWU(r, base, i); } while(0)
++
+ #define SEEN_DATAREF 0x10000 /* might call external helpers */
+ #define SEEN_XREG    0x20000 /* X reg is used */
+ #define SEEN_MEM     0x40000 /* SEEN_MEM+(1<<n) = use mem[n] for temporary
+diff --git a/arch/powerpc/net/bpf_jit64.h b/arch/powerpc/net/bpf_jit64.h
+index 62fa7589db2b..bb944b6018d7 100644
+--- a/arch/powerpc/net/bpf_jit64.h
++++ b/arch/powerpc/net/bpf_jit64.h
+@@ -86,6 +86,26 @@ DECLARE_LOAD_FUNC(sk_load_byte);
+ 			(imm >= SKF_LL_OFF ? func##_negative_offset : func) :	\
+ 			func##_positive_offset)
+ 
++/*
++ * WARNING: These can use TMP_REG_2 if the offset is not at word boundary,
++ * so ensure that it isn't in use already.
++ */
++#define PPC_BPF_LL(r, base, i) do {					      \
++				if ((i) % 4) {				      \
++					PPC_LI(b2p[TMP_REG_2], (i));	      \
++					PPC_LDX(r, base, b2p[TMP_REG_2]);     \
++				} else					      \
++					PPC_LD(r, base, i);		      \
++				} while(0)
++#define PPC_BPF_STL(r, base, i) do {					      \
++				if ((i) % 4) {				      \
++					PPC_LI(b2p[TMP_REG_2], (i));	      \
++					PPC_STDX(r, base, b2p[TMP_REG_2]);    \
++				} else					      \
++					PPC_STD(r, base, i);		      \
++				} while(0)
++#define PPC_BPF_STLU(r, base, i) do { PPC_STDU(r, base, i); } while(0)
++
+ #define SEEN_FUNC	0x1000 /* might call external helpers */
+ #define SEEN_STACK	0x2000 /* uses BPF stack */
+ #define SEEN_SKB	0x4000 /* uses sk_buff */
+diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
+index bdbbc320b006..e7d78f9156ce 100644
+--- a/arch/powerpc/net/bpf_jit_comp64.c
++++ b/arch/powerpc/net/bpf_jit_comp64.c
+@@ -265,7 +265,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32
+ 	 * if (tail_call_cnt > MAX_TAIL_CALL_CNT)
+ 	 *   goto out;
+ 	 */
+-	PPC_LD(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx));
++	PPC_BPF_LL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx));
+ 	PPC_CMPLWI(b2p[TMP_REG_1], MAX_TAIL_CALL_CNT);
+ 	PPC_BCC(COND_GT, out);
+ 
+@@ -278,7 +278,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32
+ 	/* prog = array->ptrs[index]; */
+ 	PPC_MULI(b2p[TMP_REG_1], b2p_index, 8);
+ 	PPC_ADD(b2p[TMP_REG_1], b2p[TMP_REG_1], b2p_bpf_array);
+-	PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs));
++	PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_array, ptrs));
+ 
+ 	/*
+ 	 * if (prog == NULL)
+@@ -288,7 +288,7 @@ static void bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32
+ 	PPC_BCC(COND_EQ, out);
+ 
+ 	/* goto *(prog->bpf_func + prologue_size); */
+-	PPC_LD(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func));
++	PPC_BPF_LL(b2p[TMP_REG_1], b2p[TMP_REG_1], offsetof(struct bpf_prog, bpf_func));
+ #ifdef PPC64_ELF_ABI_v1
+ 	/* skip past the function descriptor */
+ 	PPC_ADDI(b2p[TMP_REG_1], b2p[TMP_REG_1],
+@@ -620,7 +620,7 @@ bpf_alu32_trunc:
+ 				 * the instructions generated will remain the
+ 				 * same across all passes
+ 				 */
+-				PPC_STD(dst_reg, 1, bpf_jit_stack_local(ctx));
++				PPC_BPF_STL(dst_reg, 1, bpf_jit_stack_local(ctx));
+ 				PPC_ADDI(b2p[TMP_REG_1], 1, bpf_jit_stack_local(ctx));
+ 				PPC_LDBRX(dst_reg, 0, b2p[TMP_REG_1]);
+ 				break;
+@@ -676,7 +676,7 @@ emit_clear:
+ 				PPC_LI32(b2p[TMP_REG_1], imm);
+ 				src_reg = b2p[TMP_REG_1];
+ 			}
+-			PPC_STD(src_reg, dst_reg, off);
++			PPC_BPF_STL(src_reg, dst_reg, off);
+ 			break;
+ 
+ 		/*
+@@ -723,7 +723,7 @@ emit_clear:
+ 			break;
+ 		/* dst = *(u64 *)(ul) (src + off) */
+ 		case BPF_LDX | BPF_MEM | BPF_DW:
+-			PPC_LD(dst_reg, src_reg, off);
++			PPC_BPF_LL(dst_reg, src_reg, off);
+ 			break;
+ 
+ 		/*
+diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
+index e31001ec4c07..5a4591ff8407 100644
+--- a/arch/x86/Kconfig
++++ b/arch/x86/Kconfig
+@@ -2051,14 +2051,8 @@ config RANDOMIZE_MEMORY_PHYSICAL_PADDING
+ 	   If unsure, leave at the default value.
+ 
+ config HOTPLUG_CPU
+-	bool "Support for hot-pluggable CPUs"
++	def_bool y
+ 	depends on SMP
+-	---help---
+-	  Say Y here to allow turning CPUs off and on. CPUs can be
+-	  controlled through /sys/devices/system/cpu.
+-	  ( Note: power management support will enable this option
+-	    automatically on SMP systems. )
+-	  Say N if you want to disable CPU hotplug.
+ 
+ config BOOTPARAM_HOTPLUG_CPU0
+ 	bool "Set default setting of cpu0_hotpluggable"
+diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
+index 9a8167b175d5..83b5b2990b49 100644
+--- a/arch/x86/include/asm/kvm_host.h
++++ b/arch/x86/include/asm/kvm_host.h
+@@ -487,6 +487,7 @@ struct kvm_vcpu_arch {
+ 	bool tpr_access_reporting;
+ 	u64 ia32_xss;
+ 	u64 microcode_version;
++	u64 arch_capabilities;
+ 
+ 	/*
+ 	 * Paging state of the vcpu
+diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
+index a34fb7284024..75466d9417b8 100644
+--- a/arch/x86/kvm/vmx.c
++++ b/arch/x86/kvm/vmx.c
+@@ -714,7 +714,6 @@ struct vcpu_vmx {
+ 	u64 		      msr_guest_kernel_gs_base;
+ #endif
+ 
+-	u64 		      arch_capabilities;
+ 	u64 		      spec_ctrl;
+ 
+ 	u32 vm_entry_controls_shadow;
+@@ -3209,12 +3208,6 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
+ 
+ 		msr_info->data = to_vmx(vcpu)->spec_ctrl;
+ 		break;
+-	case MSR_IA32_ARCH_CAPABILITIES:
+-		if (!msr_info->host_initiated &&
+-		    !guest_cpuid_has_arch_capabilities(vcpu))
+-			return 1;
+-		msr_info->data = to_vmx(vcpu)->arch_capabilities;
+-		break;
+ 	case MSR_IA32_SYSENTER_CS:
+ 		msr_info->data = vmcs_read32(GUEST_SYSENTER_CS);
+ 		break;
+@@ -3376,11 +3369,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
+ 		vmx_disable_intercept_for_msr(vmx->vmcs01.msr_bitmap, MSR_IA32_PRED_CMD,
+ 					      MSR_TYPE_W);
+ 		break;
+-	case MSR_IA32_ARCH_CAPABILITIES:
+-		if (!msr_info->host_initiated)
+-			return 1;
+-		vmx->arch_capabilities = data;
+-		break;
+ 	case MSR_IA32_CR_PAT:
+ 		if (vmcs_config.vmentry_ctrl & VM_ENTRY_LOAD_IA32_PAT) {
+ 			if (!kvm_mtrr_valid(vcpu, MSR_IA32_CR_PAT, data))
+@@ -5468,8 +5456,6 @@ static int vmx_vcpu_setup(struct vcpu_vmx *vmx)
+ 		++vmx->nmsrs;
+ 	}
+ 
+-	vmx->arch_capabilities = kvm_get_arch_capabilities();
+-
+ 	vm_exit_controls_init(vmx, vmcs_config.vmexit_ctrl);
+ 
+ 	/* 22.2.1, 20.8.1 */
+diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
+index a29df9ccbfde..8285142556b5 100644
+--- a/arch/x86/kvm/x86.c
++++ b/arch/x86/kvm/x86.c
+@@ -2197,6 +2197,11 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
+ 		if (msr_info->host_initiated)
+ 			vcpu->arch.microcode_version = data;
+ 		break;
++	case MSR_IA32_ARCH_CAPABILITIES:
++		if (!msr_info->host_initiated)
++			return 1;
++		vcpu->arch.arch_capabilities = data;
++		break;
+ 	case MSR_EFER:
+ 		return set_efer(vcpu, data);
+ 	case MSR_K7_HWCR:
+@@ -2473,6 +2478,12 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, struct msr_data *msr_info)
+ 	case MSR_IA32_UCODE_REV:
+ 		msr_info->data = vcpu->arch.microcode_version;
+ 		break;
++	case MSR_IA32_ARCH_CAPABILITIES:
++		if (!msr_info->host_initiated &&
++		    !guest_cpuid_has_arch_capabilities(vcpu))
++			return 1;
++		msr_info->data = vcpu->arch.arch_capabilities;
++		break;
+ 	case MSR_MTRRcap:
+ 	case 0x200 ... 0x2ff:
+ 		return kvm_mtrr_get_msr(vcpu, msr_info->index, &msr_info->data);
+@@ -7672,6 +7683,7 @@ int kvm_arch_vcpu_setup(struct kvm_vcpu *vcpu)
+ {
+ 	int r;
+ 
++	vcpu->arch.arch_capabilities = kvm_get_arch_capabilities();
+ 	kvm_vcpu_mtrr_init(vcpu);
+ 	r = vcpu_load(vcpu);
+ 	if (r)
+diff --git a/drivers/gpio/gpio-adnp.c b/drivers/gpio/gpio-adnp.c
+index 8ff7b0d3eac6..3b68c03a281d 100644
+--- a/drivers/gpio/gpio-adnp.c
++++ b/drivers/gpio/gpio-adnp.c
+@@ -132,8 +132,10 @@ static int adnp_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
+ 	if (err < 0)
+ 		goto out;
+ 
+-	if (err & BIT(pos))
+-		err = -EACCES;
++	if (value & BIT(pos)) {
++		err = -EPERM;
++		goto out;
++	}
+ 
+ 	err = 0;
+ 
+diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c
+index 480c2d7794eb..8feb8e9e29a6 100644
+--- a/drivers/isdn/hardware/mISDN/hfcmulti.c
++++ b/drivers/isdn/hardware/mISDN/hfcmulti.c
+@@ -4370,7 +4370,8 @@ setup_pci(struct hfc_multi *hc, struct pci_dev *pdev,
+ 	if (m->clock2)
+ 		test_and_set_bit(HFC_CHIP_CLOCK2, &hc->chip);
+ 
+-	if (ent->device == 0xB410) {
++	if (ent->vendor == PCI_VENDOR_ID_DIGIUM &&
++	    ent->device == PCI_DEVICE_ID_DIGIUM_HFC4S) {
+ 		test_and_set_bit(HFC_CHIP_B410P, &hc->chip);
+ 		test_and_set_bit(HFC_CHIP_PCM_MASTER, &hc->chip);
+ 		test_and_clear_bit(HFC_CHIP_PCM_SLAVE, &hc->chip);
+diff --git a/drivers/net/dsa/qca8k.c b/drivers/net/dsa/qca8k.c
+index 7f64a76acd37..ebfbaf8597f4 100644
+--- a/drivers/net/dsa/qca8k.c
++++ b/drivers/net/dsa/qca8k.c
+@@ -630,22 +630,6 @@ qca8k_adjust_link(struct dsa_switch *ds, int port, struct phy_device *phy)
+ 	qca8k_port_set_status(priv, port, 1);
+ }
+ 
+-static int
+-qca8k_phy_read(struct dsa_switch *ds, int phy, int regnum)
+-{
+-	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
+-
+-	return mdiobus_read(priv->bus, phy, regnum);
+-}
+-
+-static int
+-qca8k_phy_write(struct dsa_switch *ds, int phy, int regnum, u16 val)
+-{
+-	struct qca8k_priv *priv = (struct qca8k_priv *)ds->priv;
+-
+-	return mdiobus_write(priv->bus, phy, regnum, val);
+-}
+-
+ static void
+ qca8k_get_strings(struct dsa_switch *ds, int port, uint8_t *data)
+ {
+@@ -961,8 +945,6 @@ static struct dsa_switch_ops qca8k_switch_ops = {
+ 	.setup			= qca8k_setup,
+ 	.adjust_link            = qca8k_adjust_link,
+ 	.get_strings		= qca8k_get_strings,
+-	.phy_read		= qca8k_phy_read,
+-	.phy_write		= qca8k_phy_write,
+ 	.get_ethtool_stats	= qca8k_get_ethtool_stats,
+ 	.get_sset_count		= qca8k_get_sset_count,
+ 	.get_eee		= qca8k_get_eee,
+diff --git a/drivers/net/ethernet/8390/mac8390.c b/drivers/net/ethernet/8390/mac8390.c
+index b9283901136e..0fdc9ad32a2e 100644
+--- a/drivers/net/ethernet/8390/mac8390.c
++++ b/drivers/net/ethernet/8390/mac8390.c
+@@ -156,8 +156,6 @@ static void dayna_block_output(struct net_device *dev, int count,
+ #define memcpy_fromio(a, b, c)	memcpy((a), (void *)(b), (c))
+ #define memcpy_toio(a, b, c)	memcpy((void *)(a), (b), (c))
+ 
+-#define memcmp_withio(a, b, c)	memcmp((a), (void *)(b), (c))
+-
+ /* Slow Sane (16-bit chunk memory read/write) Cabletron uses this */
+ static void slow_sane_get_8390_hdr(struct net_device *dev,
+ 				   struct e8390_pkt_hdr *hdr, int ring_page);
+@@ -237,19 +235,26 @@ static enum mac8390_type __init mac8390_ident(struct nubus_dev *dev)
+ 
+ static enum mac8390_access __init mac8390_testio(volatile unsigned long membase)
+ {
+-	unsigned long outdata = 0xA5A0B5B0;
+-	unsigned long indata =  0x00000000;
++	u32 outdata = 0xA5A0B5B0;
++	u32 indata = 0;
++
+ 	/* Try writing 32 bits */
+-	memcpy_toio(membase, &outdata, 4);
+-	/* Now compare them */
+-	if (memcmp_withio(&outdata, membase, 4) == 0)
++	nubus_writel(outdata, membase);
++	/* Now read it back */
++	indata = nubus_readl(membase);
++	if (outdata == indata)
+ 		return ACCESS_32;
++
++	outdata = 0xC5C0D5D0;
++	indata = 0;
++
+ 	/* Write 16 bit output */
+ 	word_memcpy_tocard(membase, &outdata, 4);
+ 	/* Now read it back */
+ 	word_memcpy_fromcard(&indata, membase, 4);
+ 	if (outdata == indata)
+ 		return ACCESS_16;
++
+ 	return ACCESS_UNKNOWN;
+ }
+ 
+diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+index 20a2b01b392c..fc437d75ac76 100644
+--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
++++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+@@ -2931,6 +2931,20 @@ static int stmmac_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+ 	return ret;
+ }
+ 
++static int stmmac_set_mac_address(struct net_device *ndev, void *addr)
++{
++	struct stmmac_priv *priv = netdev_priv(ndev);
++	int ret = 0;
++
++	ret = eth_mac_addr(ndev, addr);
++	if (ret)
++		return ret;
++
++	priv->hw->mac->set_umac_addr(priv->hw, ndev->dev_addr, 0);
++
++	return ret;
++}
++
+ #ifdef CONFIG_DEBUG_FS
+ static struct dentry *stmmac_fs_dir;
+ 
+@@ -3137,7 +3151,7 @@ static const struct net_device_ops stmmac_netdev_ops = {
+ #ifdef CONFIG_NET_POLL_CONTROLLER
+ 	.ndo_poll_controller = stmmac_poll_controller,
+ #endif
+-	.ndo_set_mac_address = eth_mac_addr,
++	.ndo_set_mac_address = stmmac_set_mac_address,
+ };
+ 
+ /**
+diff --git a/drivers/net/tun.c b/drivers/net/tun.c
+index 24cc94453d38..88fe38d6a7ef 100644
+--- a/drivers/net/tun.c
++++ b/drivers/net/tun.c
+@@ -1194,9 +1194,6 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
+ 	u32 rxhash;
+ 	ssize_t n;
+ 
+-	if (!(tun->dev->flags & IFF_UP))
+-		return -EIO;
+-
+ 	if (!(tun->flags & IFF_NO_PI)) {
+ 		if (len < sizeof(pi))
+ 			return -EINVAL;
+@@ -1273,9 +1270,11 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
+ 		err = skb_copy_datagram_from_iter(skb, 0, from, len);
+ 
+ 	if (err) {
++		err = -EFAULT;
++drop:
+ 		this_cpu_inc(tun->pcpu_stats->rx_dropped);
+ 		kfree_skb(skb);
+-		return -EFAULT;
++		return err;
+ 	}
+ 
+ 	err = virtio_net_hdr_to_skb(skb, &gso, tun_is_little_endian(tun));
+@@ -1327,7 +1326,16 @@ static ssize_t tun_get_user(struct tun_struct *tun, struct tun_file *tfile,
+ 	skb_probe_transport_header(skb, 0);
+ 
+ 	rxhash = skb_get_hash(skb);
++
++	rcu_read_lock();
++	if (unlikely(!(tun->dev->flags & IFF_UP))) {
++		err = -EIO;
++		rcu_read_unlock();
++		goto drop;
++	}
++
+ 	netif_rx_ni(skb);
++	rcu_read_unlock();
+ 
+ 	stats = get_cpu_ptr(tun->pcpu_stats);
+ 	u64_stats_update_begin(&stats->syncp);
+diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
+index 016f5da425ab..b6ee0c1690d8 100644
+--- a/drivers/net/vxlan.c
++++ b/drivers/net/vxlan.c
+@@ -3375,10 +3375,8 @@ static void __net_exit vxlan_exit_net(struct net *net)
+ 		/* If vxlan->dev is in the same netns, it has already been added
+ 		 * to the list by the previous loop.
+ 		 */
+-		if (!net_eq(dev_net(vxlan->dev), net)) {
+-			gro_cells_destroy(&vxlan->gro_cells);
++		if (!net_eq(dev_net(vxlan->dev), net))
+ 			unregister_netdevice_queue(vxlan->dev, &list);
+-		}
+ 	}
+ 
+ 	unregister_netdevice_many(&list);
+diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c
+index 2abcd331b05d..abe460eac712 100644
+--- a/drivers/s390/scsi/zfcp_erp.c
++++ b/drivers/s390/scsi/zfcp_erp.c
+@@ -652,6 +652,20 @@ static void zfcp_erp_strategy_memwait(struct zfcp_erp_action *erp_action)
+ 	add_timer(&erp_action->timer);
+ }
+ 
++void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter,
++				     int clear, char *dbftag)
++{
++	unsigned long flags;
++	struct zfcp_port *port;
++
++	write_lock_irqsave(&adapter->erp_lock, flags);
++	read_lock(&adapter->port_list_lock);
++	list_for_each_entry(port, &adapter->port_list, list)
++		_zfcp_erp_port_forced_reopen(port, clear, dbftag);
++	read_unlock(&adapter->port_list_lock);
++	write_unlock_irqrestore(&adapter->erp_lock, flags);
++}
++
+ static void _zfcp_erp_port_reopen_all(struct zfcp_adapter *adapter,
+ 				      int clear, char *id)
+ {
+@@ -1306,6 +1320,9 @@ static void zfcp_erp_try_rport_unblock(struct zfcp_port *port)
+ 		struct zfcp_scsi_dev *zsdev = sdev_to_zfcp(sdev);
+ 		int lun_status;
+ 
++		if (sdev->sdev_state == SDEV_DEL ||
++		    sdev->sdev_state == SDEV_CANCEL)
++			continue;
+ 		if (zsdev->port != port)
+ 			continue;
+ 		/* LUN under port of interest */
+diff --git a/drivers/s390/scsi/zfcp_ext.h b/drivers/s390/scsi/zfcp_ext.h
+index b326f05c7f89..a39a74500e23 100644
+--- a/drivers/s390/scsi/zfcp_ext.h
++++ b/drivers/s390/scsi/zfcp_ext.h
+@@ -68,6 +68,8 @@ extern void zfcp_erp_clear_port_status(struct zfcp_port *, u32);
+ extern int  zfcp_erp_port_reopen(struct zfcp_port *, int, char *);
+ extern void zfcp_erp_port_shutdown(struct zfcp_port *, int, char *);
+ extern void zfcp_erp_port_forced_reopen(struct zfcp_port *, int, char *);
++extern void zfcp_erp_port_forced_reopen_all(struct zfcp_adapter *adapter,
++					    int clear, char *dbftag);
+ extern void zfcp_erp_set_lun_status(struct scsi_device *, u32);
+ extern void zfcp_erp_clear_lun_status(struct scsi_device *, u32);
+ extern void zfcp_erp_lun_reopen(struct scsi_device *, int, char *);
+diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c
+index 3afb200b2829..bdb257eaa2e5 100644
+--- a/drivers/s390/scsi/zfcp_scsi.c
++++ b/drivers/s390/scsi/zfcp_scsi.c
+@@ -326,6 +326,10 @@ static int zfcp_scsi_eh_host_reset_handler(struct scsi_cmnd *scpnt)
+ 	struct zfcp_adapter *adapter = zfcp_sdev->port->adapter;
+ 	int ret = SUCCESS, fc_ret;
+ 
++	if (!(adapter->connection_features & FSF_FEATURE_NPIV_MODE)) {
++		zfcp_erp_port_forced_reopen_all(adapter, 0, "schrh_p");
++		zfcp_erp_wait(adapter);
++	}
+ 	zfcp_erp_adapter_reopen(adapter, 0, "schrh_1");
+ 	zfcp_erp_wait(adapter);
+ 	fc_ret = fc_block_scsi_eh(scpnt);
+diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
+index 3e9cbba41464..58345d3d4682 100644
+--- a/drivers/scsi/sd.c
++++ b/drivers/scsi/sd.c
+@@ -1284,11 +1284,6 @@ static void sd_release(struct gendisk *disk, fmode_t mode)
+ 			scsi_set_medium_removal(sdev, SCSI_REMOVAL_ALLOW);
+ 	}
+ 
+-	/*
+-	 * XXX and what if there are packets in flight and this close()
+-	 * XXX is followed by a "rmmod sd_mod"?
+-	 */
+-
+ 	scsi_disk_put(sdkp);
+ }
+ 
+@@ -2846,6 +2841,9 @@ static bool sd_validate_opt_xfer_size(struct scsi_disk *sdkp,
+ 	unsigned int opt_xfer_bytes =
+ 		logical_to_bytes(sdp, sdkp->opt_xfer_blocks);
+ 
++	if (sdkp->opt_xfer_blocks == 0)
++		return false;
++
+ 	if (sdkp->opt_xfer_blocks > dev_max) {
+ 		sd_first_printk(KERN_WARNING, sdkp,
+ 				"Optimal transfer size %u logical blocks " \
+@@ -3257,11 +3255,23 @@ static void scsi_disk_release(struct device *dev)
+ {
+ 	struct scsi_disk *sdkp = to_scsi_disk(dev);
+ 	struct gendisk *disk = sdkp->disk;
+-	
++	struct request_queue *q = disk->queue;
++
+ 	spin_lock(&sd_index_lock);
+ 	ida_remove(&sd_index_ida, sdkp->index);
+ 	spin_unlock(&sd_index_lock);
+ 
++	/*
++	 * Wait until all requests that are in progress have completed.
++	 * This is necessary to avoid that e.g. scsi_end_request() crashes
++	 * due to clearing the disk->private_data pointer. Wait from inside
++	 * scsi_disk_release() instead of from sd_release() to avoid that
++	 * freezing and unfreezing the request queue affects user space I/O
++	 * in case multiple processes open a /dev/sd... node concurrently.
++	 */
++	blk_mq_freeze_queue(q);
++	blk_mq_unfreeze_queue(q);
++
+ 	disk->private_data = NULL;
+ 	put_disk(disk);
+ 	put_device(&sdkp->device->sdev_gendev);
+diff --git a/drivers/staging/comedi/comedidev.h b/drivers/staging/comedi/comedidev.h
+index dcb637665eb7..35432fbd6551 100644
+--- a/drivers/staging/comedi/comedidev.h
++++ b/drivers/staging/comedi/comedidev.h
+@@ -984,6 +984,8 @@ int comedi_dio_insn_config(struct comedi_device *, struct comedi_subdevice *,
+ 			   unsigned int mask);
+ unsigned int comedi_dio_update_state(struct comedi_subdevice *,
+ 				     unsigned int *data);
++unsigned int comedi_bytes_per_scan_cmd(struct comedi_subdevice *s,
++				       struct comedi_cmd *cmd);
+ unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s);
+ unsigned int comedi_nscans_left(struct comedi_subdevice *s,
+ 				unsigned int nscans);
+diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c
+index 1736248bc5b8..8ca5493c66fe 100644
+--- a/drivers/staging/comedi/drivers.c
++++ b/drivers/staging/comedi/drivers.c
+@@ -390,11 +390,13 @@ unsigned int comedi_dio_update_state(struct comedi_subdevice *s,
+ EXPORT_SYMBOL_GPL(comedi_dio_update_state);
+ 
+ /**
+- * comedi_bytes_per_scan() - Get length of asynchronous command "scan" in bytes
++ * comedi_bytes_per_scan_cmd() - Get length of asynchronous command "scan" in
++ * bytes
+  * @s: COMEDI subdevice.
++ * @cmd: COMEDI command.
+  *
+  * Determines the overall scan length according to the subdevice type and the
+- * number of channels in the scan.
++ * number of channels in the scan for the specified command.
+  *
+  * For digital input, output or input/output subdevices, samples for
+  * multiple channels are assumed to be packed into one or more unsigned
+@@ -404,9 +406,9 @@ EXPORT_SYMBOL_GPL(comedi_dio_update_state);
+  *
+  * Returns the overall scan length in bytes.
+  */
+-unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s)
++unsigned int comedi_bytes_per_scan_cmd(struct comedi_subdevice *s,
++				       struct comedi_cmd *cmd)
+ {
+-	struct comedi_cmd *cmd = &s->async->cmd;
+ 	unsigned int num_samples;
+ 	unsigned int bits_per_sample;
+ 
+@@ -423,6 +425,29 @@ unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s)
+ 	}
+ 	return comedi_samples_to_bytes(s, num_samples);
+ }
++EXPORT_SYMBOL_GPL(comedi_bytes_per_scan_cmd);
++
++/**
++ * comedi_bytes_per_scan() - Get length of asynchronous command "scan" in bytes
++ * @s: COMEDI subdevice.
++ *
++ * Determines the overall scan length according to the subdevice type and the
++ * number of channels in the scan for the current command.
++ *
++ * For digital input, output or input/output subdevices, samples for
++ * multiple channels are assumed to be packed into one or more unsigned
++ * short or unsigned int values according to the subdevice's %SDF_LSAMPL
++ * flag.  For other types of subdevice, samples are assumed to occupy a
++ * whole unsigned short or unsigned int according to the %SDF_LSAMPL flag.
++ *
++ * Returns the overall scan length in bytes.
++ */
++unsigned int comedi_bytes_per_scan(struct comedi_subdevice *s)
++{
++	struct comedi_cmd *cmd = &s->async->cmd;
++
++	return comedi_bytes_per_scan_cmd(s, cmd);
++}
+ EXPORT_SYMBOL_GPL(comedi_bytes_per_scan);
+ 
+ static unsigned int __comedi_nscans_left(struct comedi_subdevice *s,
+diff --git a/drivers/staging/comedi/drivers/ni_mio_common.c b/drivers/staging/comedi/drivers/ni_mio_common.c
+index 0fa85d55c82f..fe03a41dc5cf 100644
+--- a/drivers/staging/comedi/drivers/ni_mio_common.c
++++ b/drivers/staging/comedi/drivers/ni_mio_common.c
+@@ -3477,6 +3477,7 @@ static int ni_cdio_check_chanlist(struct comedi_device *dev,
+ static int ni_cdio_cmdtest(struct comedi_device *dev,
+ 			   struct comedi_subdevice *s, struct comedi_cmd *cmd)
+ {
++	unsigned int bytes_per_scan;
+ 	int err = 0;
+ 	int tmp;
+ 
+@@ -3506,9 +3507,12 @@ static int ni_cdio_cmdtest(struct comedi_device *dev,
+ 	err |= comedi_check_trigger_arg_is(&cmd->convert_arg, 0);
+ 	err |= comedi_check_trigger_arg_is(&cmd->scan_end_arg,
+ 					   cmd->chanlist_len);
+-	err |= comedi_check_trigger_arg_max(&cmd->stop_arg,
+-					    s->async->prealloc_bufsz /
+-					    comedi_bytes_per_scan(s));
++	bytes_per_scan = comedi_bytes_per_scan_cmd(s, cmd);
++	if (bytes_per_scan) {
++		err |= comedi_check_trigger_arg_max(&cmd->stop_arg,
++						    s->async->prealloc_bufsz /
++						    bytes_per_scan);
++	}
+ 
+ 	if (err)
+ 		return 3;
+diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
+index ab96629b7889..22e5116e74f8 100644
+--- a/drivers/staging/vt6655/device_main.c
++++ b/drivers/staging/vt6655/device_main.c
+@@ -977,8 +977,6 @@ static void vnt_interrupt_process(struct vnt_private *priv)
+ 		return;
+ 	}
+ 
+-	MACvIntDisable(priv->PortOffset);
+-
+ 	spin_lock_irqsave(&priv->lock, flags);
+ 
+ 	/* Read low level stats */
+@@ -1067,8 +1065,6 @@ static void vnt_interrupt_process(struct vnt_private *priv)
+ 	}
+ 
+ 	spin_unlock_irqrestore(&priv->lock, flags);
+-
+-	MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE);
+ }
+ 
+ static void vnt_interrupt_work(struct work_struct *work)
+@@ -1078,14 +1074,17 @@ static void vnt_interrupt_work(struct work_struct *work)
+ 
+ 	if (priv->vif)
+ 		vnt_interrupt_process(priv);
++
++	MACvIntEnable(priv->PortOffset, IMR_MASK_VALUE);
+ }
+ 
+ static irqreturn_t vnt_interrupt(int irq,  void *arg)
+ {
+ 	struct vnt_private *priv = arg;
+ 
+-	if (priv->vif)
+-		schedule_work(&priv->interrupt_work);
++	schedule_work(&priv->interrupt_work);
++
++	MACvIntDisable(priv->PortOffset);
+ 
+ 	return IRQ_HANDLED;
+ }
+diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
+index 5a341b1c65c3..d8e1945cb627 100644
+--- a/drivers/tty/serial/atmel_serial.c
++++ b/drivers/tty/serial/atmel_serial.c
+@@ -1166,6 +1166,10 @@ static int atmel_prepare_rx_dma(struct uart_port *port)
+ 					 sg_dma_len(&atmel_port->sg_rx)/2,
+ 					 DMA_DEV_TO_MEM,
+ 					 DMA_PREP_INTERRUPT);
++	if (!desc) {
++		dev_err(port->dev, "Preparing DMA cyclic failed\n");
++		goto chan_err;
++	}
+ 	desc->callback = atmel_complete_rx_dma;
+ 	desc->callback_param = port;
+ 	atmel_port->desc_rx = desc;
+diff --git a/drivers/tty/serial/kgdboc.c b/drivers/tty/serial/kgdboc.c
+index f2b0d8cee8ef..0314e78e31ff 100644
+--- a/drivers/tty/serial/kgdboc.c
++++ b/drivers/tty/serial/kgdboc.c
+@@ -148,8 +148,10 @@ static int configure_kgdboc(void)
+ 	char *cptr = config;
+ 	struct console *cons;
+ 
+-	if (!strlen(config) || isspace(config[0]))
++	if (!strlen(config) || isspace(config[0])) {
++		err = 0;
+ 		goto noconfig;
++	}
+ 
+ 	kgdboc_io_ops.is_console = 0;
+ 	kgdb_tty_driver = NULL;
+diff --git a/drivers/tty/serial/max310x.c b/drivers/tty/serial/max310x.c
+index 8a3e92638e10..5331baf3f699 100644
+--- a/drivers/tty/serial/max310x.c
++++ b/drivers/tty/serial/max310x.c
+@@ -1323,6 +1323,8 @@ static int max310x_spi_probe(struct spi_device *spi)
+ 	if (spi->dev.of_node) {
+ 		const struct of_device_id *of_id =
+ 			of_match_device(max310x_dt_ids, &spi->dev);
++		if (!of_id)
++			return -ENODEV;
+ 
+ 		devtype = (struct max310x_devtype *)of_id->data;
+ 	} else {
+diff --git a/drivers/tty/serial/sh-sci.c b/drivers/tty/serial/sh-sci.c
+index 6ff53b604ff6..bcb997935c5e 100644
+--- a/drivers/tty/serial/sh-sci.c
++++ b/drivers/tty/serial/sh-sci.c
+@@ -834,19 +834,9 @@ static void sci_transmit_chars(struct uart_port *port)
+ 
+ 	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+ 		uart_write_wakeup(port);
+-	if (uart_circ_empty(xmit)) {
++	if (uart_circ_empty(xmit))
+ 		sci_stop_tx(port);
+-	} else {
+-		ctrl = serial_port_in(port, SCSCR);
+-
+-		if (port->type != PORT_SCI) {
+-			serial_port_in(port, SCxSR); /* Dummy read */
+-			sci_clear_SCxSR(port, SCxSR_TDxE_CLEAR(port));
+-		}
+ 
+-		ctrl |= SCSCR_TIE;
+-		serial_port_out(port, SCSCR, ctrl);
+-	}
+ }
+ 
+ /* On SH3, SCIF may read end-of-break as a space->mark char */
+diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
+index 5ef8da6e67c3..64c76403a542 100644
+--- a/drivers/usb/common/common.c
++++ b/drivers/usb/common/common.c
+@@ -148,6 +148,8 @@ enum usb_dr_mode of_usb_get_dr_mode_by_phy(struct device_node *np, int arg0)
+ 
+ 	do {
+ 		controller = of_find_node_with_property(controller, "phys");
++		if (!of_device_is_available(controller))
++			continue;
+ 		index = 0;
+ 		do {
+ 			if (arg0 == -1) {
+diff --git a/drivers/usb/core/config.c b/drivers/usb/core/config.c
+index c6578b321838..5e6136d2ed71 100644
+--- a/drivers/usb/core/config.c
++++ b/drivers/usb/core/config.c
+@@ -763,21 +763,18 @@ void usb_destroy_configuration(struct usb_device *dev)
+ 		return;
+ 
+ 	if (dev->rawdescriptors) {
+-		for (i = 0; i < dev->descriptor.bNumConfigurations &&
+-				i < USB_MAXCONFIG; i++)
++		for (i = 0; i < dev->descriptor.bNumConfigurations; i++)
+ 			kfree(dev->rawdescriptors[i]);
+ 
+ 		kfree(dev->rawdescriptors);
+ 		dev->rawdescriptors = NULL;
+ 	}
+ 
+-	for (c = 0; c < dev->descriptor.bNumConfigurations &&
+-			c < USB_MAXCONFIG; c++) {
++	for (c = 0; c < dev->descriptor.bNumConfigurations; c++) {
+ 		struct usb_host_config *cf = &dev->config[c];
+ 
+ 		kfree(cf->string);
+-		for (i = 0; i < cf->desc.bNumInterfaces &&
+-				i < USB_MAXINTERFACES; i++) {
++		for (i = 0; i < cf->desc.bNumInterfaces; i++) {
+ 			if (cf->intf_cache[i])
+ 				kref_put(&cf->intf_cache[i]->ref,
+ 					  usb_release_interface_cache);
+diff --git a/drivers/usb/gadget/function/f_hid.c b/drivers/usb/gadget/function/f_hid.c
+index 5815120c0402..8e83649f77ce 100644
+--- a/drivers/usb/gadget/function/f_hid.c
++++ b/drivers/usb/gadget/function/f_hid.c
+@@ -340,20 +340,20 @@ try_again:
+ 	req->complete = f_hidg_req_complete;
+ 	req->context  = hidg;
+ 
++	spin_unlock_irqrestore(&hidg->write_spinlock, flags);
++
+ 	status = usb_ep_queue(hidg->in_ep, hidg->req, GFP_ATOMIC);
+ 	if (status < 0) {
+ 		ERROR(hidg->func.config->cdev,
+ 			"usb_ep_queue error on int endpoint %zd\n", status);
+-		goto release_write_pending_unlocked;
++		goto release_write_pending;
+ 	} else {
+ 		status = count;
+ 	}
+-	spin_unlock_irqrestore(&hidg->write_spinlock, flags);
+ 
+ 	return status;
+ release_write_pending:
+ 	spin_lock_irqsave(&hidg->write_spinlock, flags);
+-release_write_pending_unlocked:
+ 	hidg->write_pending = 0;
+ 	spin_unlock_irqrestore(&hidg->write_spinlock, flags);
+ 
+diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
+index 0e4535e632ec..64ee8154f2bb 100644
+--- a/drivers/usb/host/xhci-rcar.c
++++ b/drivers/usb/host/xhci-rcar.c
+@@ -192,5 +192,6 @@ int xhci_rcar_init_quirk(struct usb_hcd *hcd)
+ 			xhci_rcar_is_gen3(hcd->self.controller))
+ 		xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
+ 
++	xhci->quirks |= XHCI_TRUST_TX_LENGTH;
+ 	return xhci_rcar_download_firmware(hcd);
+ }
+diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
+index f4e34a75d413..879d82223068 100644
+--- a/drivers/usb/host/xhci-ring.c
++++ b/drivers/usb/host/xhci-ring.c
+@@ -1645,10 +1645,13 @@ static void handle_port_status(struct xhci_hcd *xhci,
+ 		}
+ 	}
+ 
+-	if ((temp & PORT_PLC) && (temp & PORT_PLS_MASK) == XDEV_U0 &&
+-			DEV_SUPERSPEED_ANY(temp)) {
++	if ((temp & PORT_PLC) &&
++	    DEV_SUPERSPEED_ANY(temp) &&
++	    ((temp & PORT_PLS_MASK) == XDEV_U0 ||
++	     (temp & PORT_PLS_MASK) == XDEV_U1 ||
++	     (temp & PORT_PLS_MASK) == XDEV_U2)) {
+ 		xhci_dbg(xhci, "resume SS port %d finished\n", port_id);
+-		/* We've just brought the device into U0 through either the
++		/* We've just brought the device into U0/1/2 through either the
+ 		 * Resume state after a device remote wakeup, or through the
+ 		 * U3Exit state after a host-initiated resume.  If it's a device
+ 		 * initiated remote wake, don't pass up the link state change,
+diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
+index e679fec9ce3a..de4771ce0df6 100644
+--- a/drivers/usb/host/xhci.h
++++ b/drivers/usb/host/xhci.h
+@@ -311,6 +311,7 @@ struct xhci_op_regs {
+  */
+ #define PORT_PLS_MASK	(0xf << 5)
+ #define XDEV_U0		(0x0 << 5)
++#define XDEV_U1		(0x1 << 5)
+ #define XDEV_U2		(0x2 << 5)
+ #define XDEV_U3		(0x3 << 5)
+ #define XDEV_INACTIVE	(0x6 << 5)
+diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
+index 7bbf2ca73f68..40c58145bf80 100644
+--- a/drivers/usb/serial/cp210x.c
++++ b/drivers/usb/serial/cp210x.c
+@@ -77,6 +77,7 @@ static const struct usb_device_id id_table[] = {
+ 	{ USB_DEVICE(0x10C4, 0x804E) }, /* Software Bisque Paramount ME build-in converter */
+ 	{ USB_DEVICE(0x10C4, 0x8053) }, /* Enfora EDG1228 */
+ 	{ USB_DEVICE(0x10C4, 0x8054) }, /* Enfora GSM2228 */
++	{ USB_DEVICE(0x10C4, 0x8056) }, /* Lorenz Messtechnik devices */
+ 	{ USB_DEVICE(0x10C4, 0x8066) }, /* Argussoft In-System Programmer */
+ 	{ USB_DEVICE(0x10C4, 0x806F) }, /* IMS USB to RS422 Converter Cable */
+ 	{ USB_DEVICE(0x10C4, 0x807A) }, /* Crumb128 board */
+diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
+index b88a72220acd..f54931aa7528 100644
+--- a/drivers/usb/serial/ftdi_sio.c
++++ b/drivers/usb/serial/ftdi_sio.c
+@@ -604,6 +604,8 @@ static const struct usb_device_id id_table_combined[] = {
+ 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
+ 	{ USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLXM_PID),
+ 		.driver_info = (kernel_ulong_t)&ftdi_jtag_quirk },
++	{ USB_DEVICE(FTDI_VID, FTDI_NT_ORIONLX_PLUS_PID) },
++	{ USB_DEVICE(FTDI_VID, FTDI_NT_ORION_IO_PID) },
+ 	{ USB_DEVICE(FTDI_VID, FTDI_SYNAPSE_SS200_PID) },
+ 	{ USB_DEVICE(FTDI_VID, FTDI_CUSTOMWARE_MINIPLEX_PID) },
+ 	{ USB_DEVICE(FTDI_VID, FTDI_CUSTOMWARE_MINIPLEX2_PID) },
+diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
+index ddf5ab983dc9..15d220eaf6e6 100644
+--- a/drivers/usb/serial/ftdi_sio_ids.h
++++ b/drivers/usb/serial/ftdi_sio_ids.h
+@@ -566,7 +566,9 @@
+ /*
+  * NovaTech product ids (FTDI_VID)
+  */
+-#define FTDI_NT_ORIONLXM_PID	0x7c90	/* OrionLXm Substation Automation Platform */
++#define FTDI_NT_ORIONLXM_PID		0x7c90	/* OrionLXm Substation Automation Platform */
++#define FTDI_NT_ORIONLX_PLUS_PID	0x7c91	/* OrionLX+ Substation Automation Platform */
++#define FTDI_NT_ORION_IO_PID		0x7c92	/* Orion I/O */
+ 
+ /*
+  * Synapse Wireless product ids (FTDI_VID)
+diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
+index 135eb04368f9..ea20322e1416 100644
+--- a/drivers/usb/serial/mos7720.c
++++ b/drivers/usb/serial/mos7720.c
+@@ -368,8 +368,6 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
+ 	if (!urbtrack)
+ 		return -ENOMEM;
+ 
+-	kref_get(&mos_parport->ref_count);
+-	urbtrack->mos_parport = mos_parport;
+ 	urbtrack->urb = usb_alloc_urb(0, GFP_ATOMIC);
+ 	if (!urbtrack->urb) {
+ 		kfree(urbtrack);
+@@ -390,6 +388,8 @@ static int write_parport_reg_nonblock(struct mos7715_parport *mos_parport,
+ 			     usb_sndctrlpipe(usbdev, 0),
+ 			     (unsigned char *)urbtrack->setup,
+ 			     NULL, 0, async_complete, urbtrack);
++	kref_get(&mos_parport->ref_count);
++	urbtrack->mos_parport = mos_parport;
+ 	kref_init(&urbtrack->ref_count);
+ 	INIT_LIST_HEAD(&urbtrack->urblist_entry);
+ 
+diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
+index b2b7c12e5c86..9f96dd274370 100644
+--- a/drivers/usb/serial/option.c
++++ b/drivers/usb/serial/option.c
+@@ -1066,7 +1066,8 @@ static const struct usb_device_id option_ids[] = {
+ 	  .driver_info = RSVD(3) },
+ 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x6613)}, /* Onda H600/ZTE MF330 */
+ 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x0023)}, /* ONYX 3G device */
+-	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000)}, /* SIMCom SIM5218 */
++	{ USB_DEVICE(QUALCOMM_VENDOR_ID, 0x9000), /* SIMCom SIM5218 */
++	  .driver_info = NCTRL(0) | NCTRL(1) | NCTRL(2) | NCTRL(3) | RSVD(4) },
+ 	/* Quectel products using Qualcomm vendor ID */
+ 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC15)},
+ 	{ USB_DEVICE(QUALCOMM_VENDOR_ID, QUECTEL_PRODUCT_UC20),
+@@ -1941,10 +1942,12 @@ static const struct usb_device_id option_ids[] = {
+ 	  .driver_info = RSVD(4) },
+ 	{ USB_DEVICE_INTERFACE_CLASS(0x2001, 0x7e35, 0xff),			/* D-Link DWM-222 */
+ 	  .driver_info = RSVD(4) },
+-	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) }, /* D-Link DWM-152/C1 */
+-	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/C1 */
+-	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) }, /* D-Link DWM-156/A3 */
+-	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) },                /* OLICARD300 - MT6225 */
++	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e01, 0xff, 0xff, 0xff) },	/* D-Link DWM-152/C1 */
++	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x3e02, 0xff, 0xff, 0xff) },	/* D-Link DWM-156/C1 */
++	{ USB_DEVICE_AND_INTERFACE_INFO(0x07d1, 0x7e11, 0xff, 0xff, 0xff) },	/* D-Link DWM-156/A3 */
++	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x2031, 0xff),			/* Olicard 600 */
++	  .driver_info = RSVD(4) },
++	{ USB_DEVICE_INTERFACE_CLASS(0x2020, 0x4000, 0xff) },			/* OLICARD300 - MT6225 */
+ 	{ USB_DEVICE(INOVIA_VENDOR_ID, INOVIA_SEW858) },
+ 	{ USB_DEVICE(VIATELECOM_VENDOR_ID, VIATELECOM_PRODUCT_CDS7) },
+ 	{ USB_DEVICE_AND_INTERFACE_INFO(WETELECOM_VENDOR_ID, WETELECOM_PRODUCT_WMD200, 0xff, 0xff, 0xff) },
+diff --git a/drivers/video/fbdev/goldfishfb.c b/drivers/video/fbdev/goldfishfb.c
+index 14a93cb21310..66d58e93bc32 100644
+--- a/drivers/video/fbdev/goldfishfb.c
++++ b/drivers/video/fbdev/goldfishfb.c
+@@ -234,7 +234,7 @@ static int goldfish_fb_probe(struct platform_device *pdev)
+ 	fb->fb.var.activate	= FB_ACTIVATE_NOW;
+ 	fb->fb.var.height	= readl(fb->reg_base + FB_GET_PHYS_HEIGHT);
+ 	fb->fb.var.width	= readl(fb->reg_base + FB_GET_PHYS_WIDTH);
+-	fb->fb.var.pixclock	= 10000;
++	fb->fb.var.pixclock	= 0;
+ 
+ 	fb->fb.var.red.offset = 11;
+ 	fb->fb.var.red.length = 5;
+diff --git a/fs/btrfs/raid56.c b/fs/btrfs/raid56.c
+index af6a776fa18c..5aa07de5750e 100644
+--- a/fs/btrfs/raid56.c
++++ b/fs/btrfs/raid56.c
+@@ -2395,8 +2395,9 @@ static noinline void finish_parity_scrub(struct btrfs_raid_bio *rbio,
+ 			bitmap_clear(rbio->dbitmap, pagenr, 1);
+ 		kunmap(p);
+ 
+-		for (stripe = 0; stripe < rbio->real_stripes; stripe++)
++		for (stripe = 0; stripe < nr_data; stripe++)
+ 			kunmap(page_in_rbio(rbio, stripe, pagenr, 0));
++		kunmap(p_page);
+ 	}
+ 
+ 	__free_page(p_page);
+diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c
+index 47d11a30bee7..a36bb75383dc 100644
+--- a/fs/btrfs/tree-log.c
++++ b/fs/btrfs/tree-log.c
+@@ -3343,9 +3343,16 @@ static noinline int log_dir_items(struct btrfs_trans_handle *trans,
+ 	}
+ 	btrfs_release_path(path);
+ 
+-	/* find the first key from this transaction again */
++	/*
++	 * Find the first key from this transaction again.  See the note for
++	 * log_new_dir_dentries, if we're logging a directory recursively we
++	 * won't be holding its i_mutex, which means we can modify the directory
++	 * while we're logging it.  If we remove an entry between our first
++	 * search and this search we'll not find the key again and can just
++	 * bail.
++	 */
+ 	ret = btrfs_search_slot(NULL, root, &min_key, path, 0, 0);
+-	if (WARN_ON(ret != 0))
++	if (ret != 0)
+ 		goto done;
+ 
+ 	/*
+diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
+index eb55ab6930b5..6d0d94fc243d 100644
+--- a/fs/nfs/nfs4proc.c
++++ b/fs/nfs/nfs4proc.c
+@@ -2748,7 +2748,8 @@ static int _nfs4_open_and_get_state(struct nfs4_opendata *opendata,
+ 			nfs4_schedule_stateid_recovery(server, state);
+ 	}
+ out:
+-	nfs4_sequence_free_slot(&opendata->o_res.seq_res);
++	if (!opendata->cancelled)
++		nfs4_sequence_free_slot(&opendata->o_res.seq_res);
+ 	return ret;
+ }
+ 
+diff --git a/fs/open.c b/fs/open.c
+index a6c6244f4993..f1deb36ee1b7 100644
+--- a/fs/open.c
++++ b/fs/open.c
+@@ -717,6 +717,12 @@ static int do_dentry_open(struct file *f,
+ 		return 0;
+ 	}
+ 
++	/* Any file opened for execve()/uselib() has to be a regular file. */
++	if (unlikely(f->f_flags & FMODE_EXEC && !S_ISREG(inode->i_mode))) {
++		error = -EACCES;
++		goto cleanup_file;
++	}
++
+ 	if (f->f_mode & FMODE_WRITE && !special_file(inode->i_mode)) {
+ 		error = get_write_access(inode);
+ 		if (unlikely(error))
+diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
+index 1999e85840d5..6f30cf8ef7a1 100644
+--- a/fs/proc/proc_sysctl.c
++++ b/fs/proc/proc_sysctl.c
+@@ -1604,7 +1604,8 @@ static void drop_sysctl_table(struct ctl_table_header *header)
+ 	if (--header->nreg)
+ 		return;
+ 
+-	put_links(header);
++	if (parent)
++		put_links(header);
+ 	start_unregistering(header);
+ 	if (!--header->count)
+ 		kfree_rcu(header, rcu);
+diff --git a/include/net/sctp/checksum.h b/include/net/sctp/checksum.h
+index 4a5b9a306c69..803fc26ef0ba 100644
+--- a/include/net/sctp/checksum.h
++++ b/include/net/sctp/checksum.h
+@@ -60,7 +60,7 @@ static inline __wsum sctp_csum_combine(__wsum csum, __wsum csum2,
+ static inline __le32 sctp_compute_cksum(const struct sk_buff *skb,
+ 					unsigned int offset)
+ {
+-	struct sctphdr *sh = sctp_hdr(skb);
++	struct sctphdr *sh = (struct sctphdr *)(skb->data + offset);
+         __le32 ret, old = sh->checksum;
+ 	const struct skb_checksum_ops ops = {
+ 		.update  = sctp_csum_update,
+diff --git a/include/net/sock.h b/include/net/sock.h
+index 15bb04dec40e..116308632fae 100644
+--- a/include/net/sock.h
++++ b/include/net/sock.h
+@@ -650,6 +650,12 @@ static inline void sk_add_node_rcu(struct sock *sk, struct hlist_head *list)
+ 		hlist_add_head_rcu(&sk->sk_node, list);
+ }
+ 
++static inline void sk_add_node_tail_rcu(struct sock *sk, struct hlist_head *list)
++{
++	sock_hold(sk);
++	hlist_add_tail_rcu(&sk->sk_node, list);
++}
++
+ static inline void __sk_nulls_add_node_rcu(struct sock *sk, struct hlist_nulls_head *list)
+ {
+ 	hlist_nulls_add_head_rcu(&sk->sk_nulls_node, list);
+diff --git a/kernel/cpu.c b/kernel/cpu.c
+index b5a0165b7300..bf24e8400903 100644
+--- a/kernel/cpu.c
++++ b/kernel/cpu.c
+@@ -591,6 +591,20 @@ static void undo_cpu_up(unsigned int cpu, struct cpuhp_cpu_state *st)
+ 	}
+ }
+ 
++static inline bool can_rollback_cpu(struct cpuhp_cpu_state *st)
++{
++	if (IS_ENABLED(CONFIG_HOTPLUG_CPU))
++		return true;
++	/*
++	 * When CPU hotplug is disabled, then taking the CPU down is not
++	 * possible because takedown_cpu() and the architecture and
++	 * subsystem specific mechanisms are not available. So the CPU
++	 * which would be completely unplugged again needs to stay around
++	 * in the current state.
++	 */
++	return st->state <= CPUHP_BRINGUP_CPU;
++}
++
+ static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
+ 			      enum cpuhp_state target)
+ {
+@@ -601,8 +615,10 @@ static int cpuhp_up_callbacks(unsigned int cpu, struct cpuhp_cpu_state *st,
+ 		st->state++;
+ 		ret = cpuhp_invoke_callback(cpu, st->state, true, NULL);
+ 		if (ret) {
+-			st->target = prev_state;
+-			undo_cpu_up(cpu, st);
++			if (can_rollback_cpu(st)) {
++				st->target = prev_state;
++				undo_cpu_up(cpu, st);
++			}
+ 			break;
+ 		}
+ 	}
+diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c
+index 1fc23cb4a3e0..d49aa4e6c916 100644
+--- a/net/bluetooth/l2cap_core.c
++++ b/net/bluetooth/l2cap_core.c
+@@ -3326,16 +3326,22 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data
+ 
+ 	while (len >= L2CAP_CONF_OPT_SIZE) {
+ 		len -= l2cap_get_conf_opt(&req, &type, &olen, &val);
++		if (len < 0)
++			break;
+ 
+ 		hint  = type & L2CAP_CONF_HINT;
+ 		type &= L2CAP_CONF_MASK;
+ 
+ 		switch (type) {
+ 		case L2CAP_CONF_MTU:
++			if (olen != 2)
++				break;
+ 			mtu = val;
+ 			break;
+ 
+ 		case L2CAP_CONF_FLUSH_TO:
++			if (olen != 2)
++				break;
+ 			chan->flush_to = val;
+ 			break;
+ 
+@@ -3343,26 +3349,30 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data
+ 			break;
+ 
+ 		case L2CAP_CONF_RFC:
+-			if (olen == sizeof(rfc))
+-				memcpy(&rfc, (void *) val, olen);
++			if (olen != sizeof(rfc))
++				break;
++			memcpy(&rfc, (void *) val, olen);
+ 			break;
+ 
+ 		case L2CAP_CONF_FCS:
++			if (olen != 1)
++				break;
+ 			if (val == L2CAP_FCS_NONE)
+ 				set_bit(CONF_RECV_NO_FCS, &chan->conf_state);
+ 			break;
+ 
+ 		case L2CAP_CONF_EFS:
+-			if (olen == sizeof(efs)) {
+-				remote_efs = 1;
+-				memcpy(&efs, (void *) val, olen);
+-			}
++			if (olen != sizeof(efs))
++				break;
++			remote_efs = 1;
++			memcpy(&efs, (void *) val, olen);
+ 			break;
+ 
+ 		case L2CAP_CONF_EWS:
++			if (olen != 2)
++				break;
+ 			if (!(chan->conn->local_fixed_chan & L2CAP_FC_A2MP))
+ 				return -ECONNREFUSED;
+-
+ 			set_bit(FLAG_EXT_CTRL, &chan->flags);
+ 			set_bit(CONF_EWS_RECV, &chan->conf_state);
+ 			chan->tx_win_max = L2CAP_DEFAULT_EXT_WINDOW;
+@@ -3372,7 +3382,6 @@ static int l2cap_parse_conf_req(struct l2cap_chan *chan, void *data, size_t data
+ 		default:
+ 			if (hint)
+ 				break;
+-
+ 			result = L2CAP_CONF_UNKNOWN;
+ 			*((u8 *) ptr++) = type;
+ 			break;
+@@ -3537,58 +3546,65 @@ static int l2cap_parse_conf_rsp(struct l2cap_chan *chan, void *rsp, int len,
+ 
+ 	while (len >= L2CAP_CONF_OPT_SIZE) {
+ 		len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val);
++		if (len < 0)
++			break;
+ 
+ 		switch (type) {
+ 		case L2CAP_CONF_MTU:
++			if (olen != 2)
++				break;
+ 			if (val < L2CAP_DEFAULT_MIN_MTU) {
+ 				*result = L2CAP_CONF_UNACCEPT;
+ 				chan->imtu = L2CAP_DEFAULT_MIN_MTU;
+ 			} else
+ 				chan->imtu = val;
+-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu, endptr - ptr);
++			l2cap_add_conf_opt(&ptr, L2CAP_CONF_MTU, 2, chan->imtu,
++					   endptr - ptr);
+ 			break;
+ 
+ 		case L2CAP_CONF_FLUSH_TO:
++			if (olen != 2)
++				break;
+ 			chan->flush_to = val;
+-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO,
+-					   2, chan->flush_to, endptr - ptr);
++			l2cap_add_conf_opt(&ptr, L2CAP_CONF_FLUSH_TO, 2,
++					   chan->flush_to, endptr - ptr);
+ 			break;
+ 
+ 		case L2CAP_CONF_RFC:
+-			if (olen == sizeof(rfc))
+-				memcpy(&rfc, (void *)val, olen);
+-
++			if (olen != sizeof(rfc))
++				break;
++			memcpy(&rfc, (void *)val, olen);
+ 			if (test_bit(CONF_STATE2_DEVICE, &chan->conf_state) &&
+ 			    rfc.mode != chan->mode)
+ 				return -ECONNREFUSED;
+-
+ 			chan->fcs = 0;
+-
+-			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC,
+-					   sizeof(rfc), (unsigned long) &rfc, endptr - ptr);
++			l2cap_add_conf_opt(&ptr, L2CAP_CONF_RFC, sizeof(rfc),
++					   (unsigned long) &rfc, endptr - ptr);
+ 			break;
+ 
+ 		case L2CAP_CONF_EWS:
++			if (olen != 2)
++				break;
+ 			chan->ack_win = min_t(u16, val, chan->ack_win);
+ 			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EWS, 2,
+ 					   chan->tx_win, endptr - ptr);
+ 			break;
+ 
+ 		case L2CAP_CONF_EFS:
+-			if (olen == sizeof(efs)) {
+-				memcpy(&efs, (void *)val, olen);
+-
+-				if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
+-				    efs.stype != L2CAP_SERV_NOTRAFIC &&
+-				    efs.stype != chan->local_stype)
+-					return -ECONNREFUSED;
+-
+-				l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs),
+-						   (unsigned long) &efs, endptr - ptr);
+-			}
++			if (olen != sizeof(efs))
++				break;
++			memcpy(&efs, (void *)val, olen);
++			if (chan->local_stype != L2CAP_SERV_NOTRAFIC &&
++			    efs.stype != L2CAP_SERV_NOTRAFIC &&
++			    efs.stype != chan->local_stype)
++				return -ECONNREFUSED;
++			l2cap_add_conf_opt(&ptr, L2CAP_CONF_EFS, sizeof(efs),
++					   (unsigned long) &efs, endptr - ptr);
+ 			break;
+ 
+ 		case L2CAP_CONF_FCS:
++			if (olen != 1)
++				break;
+ 			if (*result == L2CAP_CONF_PENDING)
+ 				if (val == L2CAP_FCS_NONE)
+ 					set_bit(CONF_RECV_NO_FCS,
+@@ -3717,13 +3733,18 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len)
+ 
+ 	while (len >= L2CAP_CONF_OPT_SIZE) {
+ 		len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val);
++		if (len < 0)
++			break;
+ 
+ 		switch (type) {
+ 		case L2CAP_CONF_RFC:
+-			if (olen == sizeof(rfc))
+-				memcpy(&rfc, (void *)val, olen);
++			if (olen != sizeof(rfc))
++				break;
++			memcpy(&rfc, (void *)val, olen);
+ 			break;
+ 		case L2CAP_CONF_EWS:
++			if (olen != 2)
++				break;
+ 			txwin_ext = val;
+ 			break;
+ 		}
+diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
+index 93c706172f40..87c513b5ff2e 100644
+--- a/net/dccp/ipv6.c
++++ b/net/dccp/ipv6.c
+@@ -431,8 +431,8 @@ static struct sock *dccp_v6_request_recv_sock(const struct sock *sk,
+ 		newnp->ipv6_mc_list = NULL;
+ 		newnp->ipv6_ac_list = NULL;
+ 		newnp->ipv6_fl_list = NULL;
+-		newnp->mcast_oif   = inet6_iif(skb);
+-		newnp->mcast_hops  = ipv6_hdr(skb)->hop_limit;
++		newnp->mcast_oif   = inet_iif(skb);
++		newnp->mcast_hops  = ip_hdr(skb)->ttl;
+ 
+ 		/*
+ 		 * No need to charge this sock to the relevant IPv6 refcnt debug socks count
+diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
+index 0a69d39880f2..4953466cf98f 100644
+--- a/net/ipv6/tcp_ipv6.c
++++ b/net/ipv6/tcp_ipv6.c
+@@ -1056,11 +1056,11 @@ static struct sock *tcp_v6_syn_recv_sock(const struct sock *sk, struct sk_buff *
+ 		newnp->ipv6_fl_list = NULL;
+ 		newnp->pktoptions  = NULL;
+ 		newnp->opt	   = NULL;
+-		newnp->mcast_oif   = tcp_v6_iif(skb);
+-		newnp->mcast_hops  = ipv6_hdr(skb)->hop_limit;
+-		newnp->rcv_flowinfo = ip6_flowinfo(ipv6_hdr(skb));
++		newnp->mcast_oif   = inet_iif(skb);
++		newnp->mcast_hops  = ip_hdr(skb)->ttl;
++		newnp->rcv_flowinfo = 0;
+ 		if (np->repflow)
+-			newnp->flow_label = ip6_flowlabel(ipv6_hdr(skb));
++			newnp->flow_label = 0;
+ 
+ 		/*
+ 		 * No need to charge this sock to the relevant IPv6 refcnt debug socks count
+diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
+index 14df2fcf6138..522d4ca715c9 100644
+--- a/net/packet/af_packet.c
++++ b/net/packet/af_packet.c
+@@ -3278,7 +3278,7 @@ static int packet_create(struct net *net, struct socket *sock, int protocol,
+ 	}
+ 
+ 	mutex_lock(&net->packet.sklist_lock);
+-	sk_add_node_rcu(sk, &net->packet.sklist);
++	sk_add_node_tail_rcu(sk, &net->packet.sklist);
+ 	mutex_unlock(&net->packet.sklist_lock);
+ 
+ 	preempt_disable();
+@@ -4229,7 +4229,7 @@ static struct pgv *alloc_pg_vec(struct tpacket_req *req, int order)
+ 	struct pgv *pg_vec;
+ 	int i;
+ 
+-	pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL);
++	pg_vec = kcalloc(block_nr, sizeof(struct pgv), GFP_KERNEL | __GFP_NOWARN);
+ 	if (unlikely(!pg_vec))
+ 		goto out;
+ 
+diff --git a/net/rose/rose_subr.c b/net/rose/rose_subr.c
+index 7ca57741b2fb..7849f286bb93 100644
+--- a/net/rose/rose_subr.c
++++ b/net/rose/rose_subr.c
+@@ -105,16 +105,17 @@ void rose_write_internal(struct sock *sk, int frametype)
+ 	struct sk_buff *skb;
+ 	unsigned char  *dptr;
+ 	unsigned char  lci1, lci2;
+-	char buffer[100];
+-	int len, faclen = 0;
++	int maxfaclen = 0;
++	int len, faclen;
++	int reserve;
+ 
+-	len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN + 1;
++	reserve = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1;
++	len = ROSE_MIN_LEN;
+ 
+ 	switch (frametype) {
+ 	case ROSE_CALL_REQUEST:
+ 		len   += 1 + ROSE_ADDR_LEN + ROSE_ADDR_LEN;
+-		faclen = rose_create_facilities(buffer, rose);
+-		len   += faclen;
++		maxfaclen = 256;
+ 		break;
+ 	case ROSE_CALL_ACCEPTED:
+ 	case ROSE_CLEAR_REQUEST:
+@@ -123,15 +124,16 @@ void rose_write_internal(struct sock *sk, int frametype)
+ 		break;
+ 	}
+ 
+-	if ((skb = alloc_skb(len, GFP_ATOMIC)) == NULL)
++	skb = alloc_skb(reserve + len + maxfaclen, GFP_ATOMIC);
++	if (!skb)
+ 		return;
+ 
+ 	/*
+ 	 *	Space for AX.25 header and PID.
+ 	 */
+-	skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + 1);
++	skb_reserve(skb, reserve);
+ 
+-	dptr = skb_put(skb, skb_tailroom(skb));
++	dptr = skb_put(skb, len);
+ 
+ 	lci1 = (rose->lci >> 8) & 0x0F;
+ 	lci2 = (rose->lci >> 0) & 0xFF;
+@@ -146,7 +148,8 @@ void rose_write_internal(struct sock *sk, int frametype)
+ 		dptr   += ROSE_ADDR_LEN;
+ 		memcpy(dptr, &rose->source_addr, ROSE_ADDR_LEN);
+ 		dptr   += ROSE_ADDR_LEN;
+-		memcpy(dptr, buffer, faclen);
++		faclen = rose_create_facilities(dptr, rose);
++		skb_put(skb, faclen);
+ 		dptr   += faclen;
+ 		break;
+ 
+diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
+index 549d0a4083b3..09a353c6373a 100644
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -12942,7 +12942,7 @@ static void nl80211_send_mlme_event(struct cfg80211_registered_device *rdev,
+ 	struct sk_buff *msg;
+ 	void *hdr;
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
++	msg = nlmsg_new(100 + len, gfp);
+ 	if (!msg)
+ 		return;
+ 
+@@ -13094,7 +13094,7 @@ void nl80211_send_connect_result(struct cfg80211_registered_device *rdev,
+ 	struct sk_buff *msg;
+ 	void *hdr;
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
++	msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
+ 	if (!msg)
+ 		return;
+ 
+@@ -13136,7 +13136,7 @@ void nl80211_send_roamed(struct cfg80211_registered_device *rdev,
+ 	struct sk_buff *msg;
+ 	void *hdr;
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
++	msg = nlmsg_new(100 + req_ie_len + resp_ie_len, gfp);
+ 	if (!msg)
+ 		return;
+ 
+@@ -13173,7 +13173,7 @@ void nl80211_send_disconnected(struct cfg80211_registered_device *rdev,
+ 	struct sk_buff *msg;
+ 	void *hdr;
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
++	msg = nlmsg_new(100 + ie_len, GFP_KERNEL);
+ 	if (!msg)
+ 		return;
+ 
+@@ -13249,7 +13249,7 @@ void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *addr,
+ 
+ 	trace_cfg80211_notify_new_peer_candidate(dev, addr);
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
++	msg = nlmsg_new(100 + ie_len, gfp);
+ 	if (!msg)
+ 		return;
+ 
+@@ -13620,7 +13620,7 @@ int nl80211_send_mgmt(struct cfg80211_registered_device *rdev,
+ 	struct sk_buff *msg;
+ 	void *hdr;
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
++	msg = nlmsg_new(100 + len, gfp);
+ 	if (!msg)
+ 		return -ENOMEM;
+ 
+@@ -13664,7 +13664,7 @@ void cfg80211_mgmt_tx_status(struct wireless_dev *wdev, u64 cookie,
+ 
+ 	trace_cfg80211_mgmt_tx_status(wdev, cookie, ack);
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
++	msg = nlmsg_new(100 + len, gfp);
+ 	if (!msg)
+ 		return;
+ 
+@@ -14473,7 +14473,7 @@ void cfg80211_ft_event(struct net_device *netdev,
+ 	if (!ft_event->target_ap)
+ 		return;
+ 
+-	msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
++	msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL);
+ 	if (!msg)
+ 		return;
+ 
+diff --git a/sound/core/oss/pcm_oss.c b/sound/core/oss/pcm_oss.c
+index cfb8f5896787..824097571467 100644
+--- a/sound/core/oss/pcm_oss.c
++++ b/sound/core/oss/pcm_oss.c
+@@ -951,6 +951,28 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
+ 	oss_frame_size = snd_pcm_format_physical_width(params_format(params)) *
+ 			 params_channels(params) / 8;
+ 
++	err = snd_pcm_oss_period_size(substream, params, sparams);
++	if (err < 0)
++		goto failure;
++
++	n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size);
++	err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL);
++	if (err < 0)
++		goto failure;
++
++	err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS,
++				     runtime->oss.periods, NULL);
++	if (err < 0)
++		goto failure;
++
++	snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
++
++	err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams);
++	if (err < 0) {
++		pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err);
++		goto failure;
++	}
++
+ #ifdef CONFIG_SND_PCM_OSS_PLUGINS
+ 	snd_pcm_oss_plugin_clear(substream);
+ 	if (!direct) {
+@@ -985,27 +1007,6 @@ static int snd_pcm_oss_change_params_locked(struct snd_pcm_substream *substream)
+ 	}
+ #endif
+ 
+-	err = snd_pcm_oss_period_size(substream, params, sparams);
+-	if (err < 0)
+-		goto failure;
+-
+-	n = snd_pcm_plug_slave_size(substream, runtime->oss.period_bytes / oss_frame_size);
+-	err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, n, NULL);
+-	if (err < 0)
+-		goto failure;
+-
+-	err = snd_pcm_hw_param_near(substream, sparams, SNDRV_PCM_HW_PARAM_PERIODS,
+-				     runtime->oss.periods, NULL);
+-	if (err < 0)
+-		goto failure;
+-
+-	snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_DROP, NULL);
+-
+-	if ((err = snd_pcm_kernel_ioctl(substream, SNDRV_PCM_IOCTL_HW_PARAMS, sparams)) < 0) {
+-		pcm_dbg(substream->pcm, "HW_PARAMS failed: %i\n", err);
+-		goto failure;
+-	}
+-
+ 	if (runtime->oss.trigger) {
+ 		sw_params->start_threshold = 1;
+ 	} else {
+diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
+index 3586ab41dec4..e1138e70dbb3 100644
+--- a/sound/core/pcm_native.c
++++ b/sound/core/pcm_native.c
+@@ -1258,8 +1258,15 @@ static int snd_pcm_pause(struct snd_pcm_substream *substream, int push)
+ static int snd_pcm_pre_suspend(struct snd_pcm_substream *substream, int state)
+ {
+ 	struct snd_pcm_runtime *runtime = substream->runtime;
+-	if (runtime->status->state == SNDRV_PCM_STATE_SUSPENDED)
++	switch (runtime->status->state) {
++	case SNDRV_PCM_STATE_SUSPENDED:
+ 		return -EBUSY;
++	/* unresumable PCM state; return -EBUSY for skipping suspend */
++	case SNDRV_PCM_STATE_OPEN:
++	case SNDRV_PCM_STATE_SETUP:
++	case SNDRV_PCM_STATE_DISCONNECTED:
++		return -EBUSY;
++	}
+ 	runtime->trigger_master = substream;
+ 	return 0;
+ }
+diff --git a/sound/core/rawmidi.c b/sound/core/rawmidi.c
+index 59111cadaec2..c8b2309352d7 100644
+--- a/sound/core/rawmidi.c
++++ b/sound/core/rawmidi.c
+@@ -29,6 +29,7 @@
+ #include <linux/mutex.h>
+ #include <linux/module.h>
+ #include <linux/delay.h>
++#include <linux/nospec.h>
+ #include <sound/rawmidi.h>
+ #include <sound/info.h>
+ #include <sound/control.h>
+@@ -591,6 +592,7 @@ static int __snd_rawmidi_info_select(struct snd_card *card,
+ 		return -ENXIO;
+ 	if (info->stream < 0 || info->stream > 1)
+ 		return -EINVAL;
++	info->stream = array_index_nospec(info->stream, 2);
+ 	pstr = &rmidi->streams[info->stream];
+ 	if (pstr->substream_count == 0)
+ 		return -ENOENT;
+diff --git a/sound/core/seq/oss/seq_oss_synth.c b/sound/core/seq/oss/seq_oss_synth.c
+index 278ebb993122..c93945917235 100644
+--- a/sound/core/seq/oss/seq_oss_synth.c
++++ b/sound/core/seq/oss/seq_oss_synth.c
+@@ -617,13 +617,14 @@ int
+ snd_seq_oss_synth_make_info(struct seq_oss_devinfo *dp, int dev, struct synth_info *inf)
+ {
+ 	struct seq_oss_synth *rec;
++	struct seq_oss_synthinfo *info = get_synthinfo_nospec(dp, dev);
+ 
+-	if (dev < 0 || dev >= dp->max_synthdev)
++	if (!info)
+ 		return -ENXIO;
+ 
+-	if (dp->synths[dev].is_midi) {
++	if (info->is_midi) {
+ 		struct midi_info minf;
+-		snd_seq_oss_midi_make_info(dp, dp->synths[dev].midi_mapped, &minf);
++		snd_seq_oss_midi_make_info(dp, info->midi_mapped, &minf);
+ 		inf->synth_type = SYNTH_TYPE_MIDI;
+ 		inf->synth_subtype = 0;
+ 		inf->nr_voices = 16;
+diff --git a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+index 94764efb0a6a..3c1372655c33 100644
+--- a/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
++++ b/tools/perf/util/intel-pt-decoder/intel-pt-decoder.c
+@@ -240,19 +240,15 @@ struct intel_pt_decoder *intel_pt_decoder_new(struct intel_pt_params *params)
+ 		if (!(decoder->tsc_ctc_ratio_n % decoder->tsc_ctc_ratio_d))
+ 			decoder->tsc_ctc_mult = decoder->tsc_ctc_ratio_n /
+ 						decoder->tsc_ctc_ratio_d;
+-
+-		/*
+-		 * Allow for timestamps appearing to backwards because a TSC
+-		 * packet has slipped past a MTC packet, so allow 2 MTC ticks
+-		 * or ...
+-		 */
+-		decoder->tsc_slip = multdiv(2 << decoder->mtc_shift,
+-					decoder->tsc_ctc_ratio_n,
+-					decoder->tsc_ctc_ratio_d);
+ 	}
+-	/* ... or 0x100 paranoia */
+-	if (decoder->tsc_slip < 0x100)
+-		decoder->tsc_slip = 0x100;
++
++	/*
++	 * A TSC packet can slip past MTC packets so that the timestamp appears
++	 * to go backwards. One estimate is that can be up to about 40 CPU
++	 * cycles, which is certainly less than 0x1000 TSC ticks, but accept
++	 * slippage an order of magnitude more to be on the safe side.
++	 */
++	decoder->tsc_slip = 0x10000;
+ 
+ 	intel_pt_log("timestamp: mtc_shift %u\n", decoder->mtc_shift);
+ 	intel_pt_log("timestamp: tsc_ctc_ratio_n %u\n", decoder->tsc_ctc_ratio_n);
+diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
+index 60de4c337f0a..c72586a094ed 100644
+--- a/virt/kvm/kvm_main.c
++++ b/virt/kvm/kvm_main.c
+@@ -2793,6 +2793,9 @@ static long kvm_device_ioctl(struct file *filp, unsigned int ioctl,
+ {
+ 	struct kvm_device *dev = filp->private_data;
+ 
++	if (dev->kvm->mm != current->mm)
++		return -EIO;
++
+ 	switch (ioctl) {
+ 	case KVM_SET_DEVICE_ATTR:
+ 		return kvm_device_ioctl_attr(dev, dev->ops->set_attr, arg);