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Diffstat (limited to '4.9.10/1009_linux-4.9.10.patch')
-rw-r--r--4.9.10/1009_linux-4.9.10.patch2157
1 files changed, 2157 insertions, 0 deletions
diff --git a/4.9.10/1009_linux-4.9.10.patch b/4.9.10/1009_linux-4.9.10.patch
new file mode 100644
index 0000000..1767b59
--- /dev/null
+++ b/4.9.10/1009_linux-4.9.10.patch
@@ -0,0 +1,2157 @@
+diff --git a/Makefile b/Makefile
+index c0c41c9..d2fe757 100644
+--- a/Makefile
++++ b/Makefile
+@@ -1,6 +1,6 @@
+ VERSION = 4
+ PATCHLEVEL = 9
+-SUBLEVEL = 9
++SUBLEVEL = 10
+ EXTRAVERSION =
+ NAME = Roaring Lionus
+
+diff --git a/arch/arc/kernel/unaligned.c b/arch/arc/kernel/unaligned.c
+index 91ebe38..5f69c3b 100644
+--- a/arch/arc/kernel/unaligned.c
++++ b/arch/arc/kernel/unaligned.c
+@@ -243,7 +243,7 @@ int misaligned_fixup(unsigned long address, struct pt_regs *regs,
+
+ /* clear any remanants of delay slot */
+ if (delay_mode(regs)) {
+- regs->ret = regs->bta ~1U;
++ regs->ret = regs->bta & ~1U;
+ regs->status32 &= ~STATUS_DE_MASK;
+ } else {
+ regs->ret += state.instr_len;
+diff --git a/arch/arm/boot/dts/imx6dl.dtsi b/arch/arm/boot/dts/imx6dl.dtsi
+index 1ade195..7aa120f 100644
+--- a/arch/arm/boot/dts/imx6dl.dtsi
++++ b/arch/arm/boot/dts/imx6dl.dtsi
+@@ -137,7 +137,7 @@
+ &gpio4 {
+ gpio-ranges = <&iomuxc 5 136 1>, <&iomuxc 6 145 1>, <&iomuxc 7 150 1>,
+ <&iomuxc 8 146 1>, <&iomuxc 9 151 1>, <&iomuxc 10 147 1>,
+- <&iomuxc 11 151 1>, <&iomuxc 12 148 1>, <&iomuxc 13 153 1>,
++ <&iomuxc 11 152 1>, <&iomuxc 12 148 1>, <&iomuxc 13 153 1>,
+ <&iomuxc 14 149 1>, <&iomuxc 15 154 1>, <&iomuxc 16 39 7>,
+ <&iomuxc 23 56 1>, <&iomuxc 24 61 7>, <&iomuxc 31 46 1>;
+ };
+diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c
+index ce131ed..ae738a6 100644
+--- a/arch/arm/kernel/ptrace.c
++++ b/arch/arm/kernel/ptrace.c
+@@ -600,7 +600,7 @@ static int gpr_set(struct task_struct *target,
+ const void *kbuf, const void __user *ubuf)
+ {
+ int ret;
+- struct pt_regs newregs;
++ struct pt_regs newregs = *task_pt_regs(target);
+
+ ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &newregs,
+diff --git a/arch/arm/mm/fault.c b/arch/arm/mm/fault.c
+index 3a2e678..0122ad1 100644
+--- a/arch/arm/mm/fault.c
++++ b/arch/arm/mm/fault.c
+@@ -610,9 +610,9 @@ static int __init early_abort_handler(unsigned long addr, unsigned int fsr,
+
+ void __init early_abt_enable(void)
+ {
+- fsr_info[22].fn = early_abort_handler;
++ fsr_info[FSR_FS_AEA].fn = early_abort_handler;
+ local_abt_enable();
+- fsr_info[22].fn = do_bad;
++ fsr_info[FSR_FS_AEA].fn = do_bad;
+ }
+
+ #ifndef CONFIG_ARM_LPAE
+diff --git a/arch/arm/mm/fault.h b/arch/arm/mm/fault.h
+index 67532f2..afc1f84 100644
+--- a/arch/arm/mm/fault.h
++++ b/arch/arm/mm/fault.h
+@@ -11,11 +11,15 @@
+ #define FSR_FS5_0 (0x3f)
+
+ #ifdef CONFIG_ARM_LPAE
++#define FSR_FS_AEA 17
++
+ static inline int fsr_fs(unsigned int fsr)
+ {
+ return fsr & FSR_FS5_0;
+ }
+ #else
++#define FSR_FS_AEA 22
++
+ static inline int fsr_fs(unsigned int fsr)
+ {
+ return (fsr & FSR_FS3_0) | (fsr & FSR_FS4) >> 6;
+diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h
+index 9e1499f..13f5fad 100644
+--- a/arch/powerpc/include/asm/reg.h
++++ b/arch/powerpc/include/asm/reg.h
+@@ -641,9 +641,10 @@
+ #define SRR1_ISI_N_OR_G 0x10000000 /* ISI: Access is no-exec or G */
+ #define SRR1_ISI_PROT 0x08000000 /* ISI: Other protection fault */
+ #define SRR1_WAKEMASK 0x00380000 /* reason for wakeup */
+-#define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 */
++#define SRR1_WAKEMASK_P8 0x003c0000 /* reason for wakeup on POWER8 and 9 */
+ #define SRR1_WAKESYSERR 0x00300000 /* System error */
+ #define SRR1_WAKEEE 0x00200000 /* External interrupt */
++#define SRR1_WAKEHVI 0x00240000 /* Hypervisor Virtualization Interrupt (P9) */
+ #define SRR1_WAKEMT 0x00280000 /* mtctrl */
+ #define SRR1_WAKEHMI 0x00280000 /* Hypervisor maintenance */
+ #define SRR1_WAKEDEC 0x00180000 /* Decrementer interrupt */
+diff --git a/arch/powerpc/include/asm/xics.h b/arch/powerpc/include/asm/xics.h
+index f0b2385..e0b9e57 100644
+--- a/arch/powerpc/include/asm/xics.h
++++ b/arch/powerpc/include/asm/xics.h
+@@ -44,6 +44,7 @@ static inline int icp_hv_init(void) { return -ENODEV; }
+
+ #ifdef CONFIG_PPC_POWERNV
+ extern int icp_opal_init(void);
++extern void icp_opal_flush_interrupt(void);
+ #else
+ static inline int icp_opal_init(void) { return -ENODEV; }
+ #endif
+diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c
+index 3493cf4..71697ff 100644
+--- a/arch/powerpc/mm/tlb-radix.c
++++ b/arch/powerpc/mm/tlb-radix.c
+@@ -50,9 +50,7 @@ static inline void _tlbiel_pid(unsigned long pid, unsigned long ric)
+ for (set = 0; set < POWER9_TLB_SETS_RADIX ; set++) {
+ __tlbiel_pid(pid, set, ric);
+ }
+- if (cpu_has_feature(CPU_FTR_POWER9_DD1))
+- asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
+- return;
++ asm volatile(PPC_INVALIDATE_ERAT "; isync" : : :"memory");
+ }
+
+ static inline void _tlbie_pid(unsigned long pid, unsigned long ric)
+@@ -85,8 +83,6 @@ static inline void _tlbiel_va(unsigned long va, unsigned long pid,
+ asm volatile(PPC_TLBIEL(%0, %4, %3, %2, %1)
+ : : "r"(rb), "i"(r), "i"(prs), "i"(ric), "r"(rs) : "memory");
+ asm volatile("ptesync": : :"memory");
+- if (cpu_has_feature(CPU_FTR_POWER9_DD1))
+- asm volatile(PPC_INVALIDATE_ERAT : : :"memory");
+ }
+
+ static inline void _tlbie_va(unsigned long va, unsigned long pid,
+diff --git a/arch/powerpc/platforms/powernv/smp.c b/arch/powerpc/platforms/powernv/smp.c
+index c789258..eec0e8d 100644
+--- a/arch/powerpc/platforms/powernv/smp.c
++++ b/arch/powerpc/platforms/powernv/smp.c
+@@ -155,8 +155,10 @@ static void pnv_smp_cpu_kill_self(void)
+ wmask = SRR1_WAKEMASK_P8;
+
+ idle_states = pnv_get_supported_cpuidle_states();
++
+ /* We don't want to take decrementer interrupts while we are offline,
+- * so clear LPCR:PECE1. We keep PECE2 enabled.
++ * so clear LPCR:PECE1. We keep PECE2 (and LPCR_PECE_HVEE on P9)
++ * enabled as to let IPIs in.
+ */
+ mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) & ~(u64)LPCR_PECE1);
+
+@@ -206,8 +208,12 @@ static void pnv_smp_cpu_kill_self(void)
+ * contains 0.
+ */
+ if (((srr1 & wmask) == SRR1_WAKEEE) ||
++ ((srr1 & wmask) == SRR1_WAKEHVI) ||
+ (local_paca->irq_happened & PACA_IRQ_EE)) {
+- icp_native_flush_interrupt();
++ if (cpu_has_feature(CPU_FTR_ARCH_300))
++ icp_opal_flush_interrupt();
++ else
++ icp_native_flush_interrupt();
+ } else if ((srr1 & wmask) == SRR1_WAKEHDBELL) {
+ unsigned long msg = PPC_DBELL_TYPE(PPC_DBELL_SERVER);
+ asm volatile(PPC_MSGCLR(%0) : : "r" (msg));
+@@ -221,6 +227,8 @@ static void pnv_smp_cpu_kill_self(void)
+ if (srr1 && !generic_check_cpu_restart(cpu))
+ DBG("CPU%d Unexpected exit while offline !\n", cpu);
+ }
++
++ /* Re-enable decrementer interrupts */
+ mtspr(SPRN_LPCR, mfspr(SPRN_LPCR) | LPCR_PECE1);
+ DBG("CPU%d coming online...\n", cpu);
+ }
+diff --git a/arch/powerpc/sysdev/xics/icp-opal.c b/arch/powerpc/sysdev/xics/icp-opal.c
+index 60c5765..c96c0cb 100644
+--- a/arch/powerpc/sysdev/xics/icp-opal.c
++++ b/arch/powerpc/sysdev/xics/icp-opal.c
+@@ -132,6 +132,35 @@ static irqreturn_t icp_opal_ipi_action(int irq, void *dev_id)
+ return smp_ipi_demux();
+ }
+
++/*
++ * Called when an interrupt is received on an off-line CPU to
++ * clear the interrupt, so that the CPU can go back to nap mode.
++ */
++void icp_opal_flush_interrupt(void)
++{
++ unsigned int xirr;
++ unsigned int vec;
++
++ do {
++ xirr = icp_opal_get_xirr();
++ vec = xirr & 0x00ffffff;
++ if (vec == XICS_IRQ_SPURIOUS)
++ break;
++ if (vec == XICS_IPI) {
++ /* Clear pending IPI */
++ int cpu = smp_processor_id();
++ kvmppc_set_host_ipi(cpu, 0);
++ opal_int_set_mfrr(get_hard_smp_processor_id(cpu), 0xff);
++ } else {
++ pr_err("XICS: hw interrupt 0x%x to offline cpu, "
++ "disabling\n", vec);
++ xics_mask_unknown_vec(vec);
++ }
++
++ /* EOI the interrupt */
++ } while (opal_int_eoi(xirr) > 0);
++}
++
+ #endif /* CONFIG_SMP */
+
+ static const struct icp_ops icp_opal_ops = {
+diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
+index 984a7bf..83db0ea 100644
+--- a/arch/x86/include/asm/processor.h
++++ b/arch/x86/include/asm/processor.h
+@@ -104,6 +104,7 @@ struct cpuinfo_x86 {
+ __u8 x86_phys_bits;
+ /* CPUID returned core id bits: */
+ __u8 x86_coreid_bits;
++ __u8 cu_id;
+ /* Max extended CPUID function supported: */
+ __u32 extended_cpuid_level;
+ /* Maximum supported CPUID level, -1=no CPUID: */
+diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c
+index 7249f15..d1e2556 100644
+--- a/arch/x86/kernel/apic/io_apic.c
++++ b/arch/x86/kernel/apic/io_apic.c
+@@ -1876,7 +1876,6 @@ static struct irq_chip ioapic_chip __read_mostly = {
+ .irq_ack = irq_chip_ack_parent,
+ .irq_eoi = ioapic_ack_level,
+ .irq_set_affinity = ioapic_set_affinity,
+- .irq_retrigger = irq_chip_retrigger_hierarchy,
+ .flags = IRQCHIP_SKIP_SET_WAKE,
+ };
+
+@@ -1888,7 +1887,6 @@ static struct irq_chip ioapic_ir_chip __read_mostly = {
+ .irq_ack = irq_chip_ack_parent,
+ .irq_eoi = ioapic_ir_ack_level,
+ .irq_set_affinity = ioapic_set_affinity,
+- .irq_retrigger = irq_chip_retrigger_hierarchy,
+ .flags = IRQCHIP_SKIP_SET_WAKE,
+ };
+
+diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
+index 1d31672..2b4cf04 100644
+--- a/arch/x86/kernel/cpu/amd.c
++++ b/arch/x86/kernel/cpu/amd.c
+@@ -309,8 +309,22 @@ static void amd_get_topology(struct cpuinfo_x86 *c)
+
+ /* get information required for multi-node processors */
+ if (boot_cpu_has(X86_FEATURE_TOPOEXT)) {
++ u32 eax, ebx, ecx, edx;
+
+- node_id = cpuid_ecx(0x8000001e) & 7;
++ cpuid(0x8000001e, &eax, &ebx, &ecx, &edx);
++
++ node_id = ecx & 0xff;
++ smp_num_siblings = ((ebx >> 8) & 0xff) + 1;
++
++ if (c->x86 == 0x15)
++ c->cu_id = ebx & 0xff;
++
++ if (c->x86 >= 0x17) {
++ c->cpu_core_id = ebx & 0xff;
++
++ if (smp_num_siblings > 1)
++ c->x86_max_cores /= smp_num_siblings;
++ }
+
+ /*
+ * We may have multiple LLCs if L3 caches exist, so check if we
+diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
+index 023c7bf..4eece91 100644
+--- a/arch/x86/kernel/cpu/common.c
++++ b/arch/x86/kernel/cpu/common.c
+@@ -1015,6 +1015,7 @@ static void identify_cpu(struct cpuinfo_x86 *c)
+ c->x86_model_id[0] = '\0'; /* Unset */
+ c->x86_max_cores = 1;
+ c->x86_coreid_bits = 0;
++ c->cu_id = 0xff;
+ #ifdef CONFIG_X86_64
+ c->x86_clflush_size = 64;
+ c->x86_phys_bits = 36;
+diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
+index e9bbe02..36171bc 100644
+--- a/arch/x86/kernel/smpboot.c
++++ b/arch/x86/kernel/smpboot.c
+@@ -423,9 +423,15 @@ static bool match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o)
+ int cpu1 = c->cpu_index, cpu2 = o->cpu_index;
+
+ if (c->phys_proc_id == o->phys_proc_id &&
+- per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2) &&
+- c->cpu_core_id == o->cpu_core_id)
+- return topology_sane(c, o, "smt");
++ per_cpu(cpu_llc_id, cpu1) == per_cpu(cpu_llc_id, cpu2)) {
++ if (c->cpu_core_id == o->cpu_core_id)
++ return topology_sane(c, o, "smt");
++
++ if ((c->cu_id != 0xff) &&
++ (o->cu_id != 0xff) &&
++ (c->cu_id == o->cu_id))
++ return topology_sane(c, o, "smt");
++ }
+
+ } else if (c->phys_proc_id == o->phys_proc_id &&
+ c->cpu_core_id == o->cpu_core_id) {
+diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c
+index ea9c49a..8aa6bea 100644
+--- a/arch/x86/mm/dump_pagetables.c
++++ b/arch/x86/mm/dump_pagetables.c
+@@ -15,6 +15,7 @@
+ #include <linux/debugfs.h>
+ #include <linux/mm.h>
+ #include <linux/init.h>
++#include <linux/sched.h>
+ #include <linux/seq_file.h>
+
+ #include <asm/pgtable.h>
+@@ -406,6 +407,7 @@ static void ptdump_walk_pgd_level_core(struct seq_file *m, pgd_t *pgd,
+ } else
+ note_page(m, &st, __pgprot(0), 1);
+
++ cond_resched();
+ start++;
+ }
+
+diff --git a/crypto/algif_aead.c b/crypto/algif_aead.c
+index e9c0993..e8817e2 100644
+--- a/crypto/algif_aead.c
++++ b/crypto/algif_aead.c
+@@ -671,9 +671,9 @@ static int aead_recvmsg_sync(struct socket *sock, struct msghdr *msg, int flags)
+ unlock:
+ list_for_each_entry_safe(rsgl, tmp, &ctx->list, list) {
+ af_alg_free_sg(&rsgl->sgl);
++ list_del(&rsgl->list);
+ if (rsgl != &ctx->first_rsgl)
+ sock_kfree_s(sk, rsgl, sizeof(*rsgl));
+- list_del(&rsgl->list);
+ }
+ INIT_LIST_HEAD(&ctx->list);
+ aead_wmem_wakeup(sk);
+diff --git a/drivers/acpi/nfit/core.c b/drivers/acpi/nfit/core.c
+index 312c4b4..6eb6733 100644
+--- a/drivers/acpi/nfit/core.c
++++ b/drivers/acpi/nfit/core.c
+@@ -2704,6 +2704,7 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
+ struct acpi_nfit_desc *acpi_desc = to_acpi_nfit_desc(nd_desc);
+ struct device *dev = acpi_desc->dev;
+ struct acpi_nfit_flush_work flush;
++ int rc;
+
+ /* bounce the device lock to flush acpi_nfit_add / acpi_nfit_notify */
+ device_lock(dev);
+@@ -2716,7 +2717,10 @@ static int acpi_nfit_flush_probe(struct nvdimm_bus_descriptor *nd_desc)
+ INIT_WORK_ONSTACK(&flush.work, flush_probe);
+ COMPLETION_INITIALIZER_ONSTACK(flush.cmp);
+ queue_work(nfit_wq, &flush.work);
+- return wait_for_completion_interruptible(&flush.cmp);
++
++ rc = wait_for_completion_interruptible(&flush.cmp);
++ cancel_work_sync(&flush.work);
++ return rc;
+ }
+
+ static int acpi_nfit_clear_to_send(struct nvdimm_bus_descriptor *nd_desc,
+diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
+index 4737520..80fa656 100644
+--- a/drivers/cpufreq/intel_pstate.c
++++ b/drivers/cpufreq/intel_pstate.c
+@@ -820,6 +820,25 @@ static void intel_pstate_hwp_enable(struct cpudata *cpudata)
+ wrmsrl_on_cpu(cpudata->cpu, MSR_PM_ENABLE, 0x1);
+ }
+
++#define MSR_IA32_POWER_CTL_BIT_EE 19
++
++/* Disable energy efficiency optimization */
++static void intel_pstate_disable_ee(int cpu)
++{
++ u64 power_ctl;
++ int ret;
++
++ ret = rdmsrl_on_cpu(cpu, MSR_IA32_POWER_CTL, &power_ctl);
++ if (ret)
++ return;
++
++ if (!(power_ctl & BIT(MSR_IA32_POWER_CTL_BIT_EE))) {
++ pr_info("Disabling energy efficiency optimization\n");
++ power_ctl |= BIT(MSR_IA32_POWER_CTL_BIT_EE);
++ wrmsrl_on_cpu(cpu, MSR_IA32_POWER_CTL, power_ctl);
++ }
++}
++
+ static int atom_get_min_pstate(void)
+ {
+ u64 value;
+@@ -1420,6 +1439,11 @@ static const struct x86_cpu_id intel_pstate_cpu_oob_ids[] __initconst = {
+ {}
+ };
+
++static const struct x86_cpu_id intel_pstate_cpu_ee_disable_ids[] = {
++ ICPU(INTEL_FAM6_KABYLAKE_DESKTOP, core_params),
++ {}
++};
++
+ static int intel_pstate_init_cpu(unsigned int cpunum)
+ {
+ struct cpudata *cpu;
+@@ -1435,6 +1459,12 @@ static int intel_pstate_init_cpu(unsigned int cpunum)
+ cpu->cpu = cpunum;
+
+ if (hwp_active) {
++ const struct x86_cpu_id *id;
++
++ id = x86_match_cpu(intel_pstate_cpu_ee_disable_ids);
++ if (id)
++ intel_pstate_disable_ee(cpunum);
++
+ intel_pstate_hwp_enable(cpu);
+ pid_params.sample_rate_ms = 50;
+ pid_params.sample_rate_ns = 50 * NSEC_PER_MSEC;
+diff --git a/drivers/crypto/ccp/ccp-dev-v5.c b/drivers/crypto/ccp/ccp-dev-v5.c
+index faf3cb3..a388bf2 100644
+--- a/drivers/crypto/ccp/ccp-dev-v5.c
++++ b/drivers/crypto/ccp/ccp-dev-v5.c
+@@ -955,7 +955,7 @@ static irqreturn_t ccp5_irq_handler(int irq, void *data)
+ static void ccp5_config(struct ccp_device *ccp)
+ {
+ /* Public side */
+- iowrite32(0x00001249, ccp->io_regs + CMD5_REQID_CONFIG_OFFSET);
++ iowrite32(0x0, ccp->io_regs + CMD5_REQID_CONFIG_OFFSET);
+ }
+
+ static void ccp5other_config(struct ccp_device *ccp)
+diff --git a/drivers/crypto/ccp/ccp-dev.h b/drivers/crypto/ccp/ccp-dev.h
+index da5f4a6..340aef1 100644
+--- a/drivers/crypto/ccp/ccp-dev.h
++++ b/drivers/crypto/ccp/ccp-dev.h
+@@ -238,6 +238,7 @@ struct ccp_dma_chan {
+ struct ccp_device *ccp;
+
+ spinlock_t lock;
++ struct list_head created;
+ struct list_head pending;
+ struct list_head active;
+ struct list_head complete;
+diff --git a/drivers/crypto/ccp/ccp-dmaengine.c b/drivers/crypto/ccp/ccp-dmaengine.c
+index 6553912..e5d9278 100644
+--- a/drivers/crypto/ccp/ccp-dmaengine.c
++++ b/drivers/crypto/ccp/ccp-dmaengine.c
+@@ -63,6 +63,7 @@ static void ccp_free_chan_resources(struct dma_chan *dma_chan)
+ ccp_free_desc_resources(chan->ccp, &chan->complete);
+ ccp_free_desc_resources(chan->ccp, &chan->active);
+ ccp_free_desc_resources(chan->ccp, &chan->pending);
++ ccp_free_desc_resources(chan->ccp, &chan->created);
+
+ spin_unlock_irqrestore(&chan->lock, flags);
+ }
+@@ -273,6 +274,7 @@ static dma_cookie_t ccp_tx_submit(struct dma_async_tx_descriptor *tx_desc)
+ spin_lock_irqsave(&chan->lock, flags);
+
+ cookie = dma_cookie_assign(tx_desc);
++ list_del(&desc->entry);
+ list_add_tail(&desc->entry, &chan->pending);
+
+ spin_unlock_irqrestore(&chan->lock, flags);
+@@ -426,7 +428,7 @@ static struct ccp_dma_desc *ccp_create_desc(struct dma_chan *dma_chan,
+
+ spin_lock_irqsave(&chan->lock, sflags);
+
+- list_add_tail(&desc->entry, &chan->pending);
++ list_add_tail(&desc->entry, &chan->created);
+
+ spin_unlock_irqrestore(&chan->lock, sflags);
+
+@@ -610,6 +612,7 @@ static int ccp_terminate_all(struct dma_chan *dma_chan)
+ /*TODO: Purge the complete list? */
+ ccp_free_desc_resources(chan->ccp, &chan->active);
+ ccp_free_desc_resources(chan->ccp, &chan->pending);
++ ccp_free_desc_resources(chan->ccp, &chan->created);
+
+ spin_unlock_irqrestore(&chan->lock, flags);
+
+@@ -679,6 +682,7 @@ int ccp_dmaengine_register(struct ccp_device *ccp)
+ chan->ccp = ccp;
+
+ spin_lock_init(&chan->lock);
++ INIT_LIST_HEAD(&chan->created);
+ INIT_LIST_HEAD(&chan->pending);
+ INIT_LIST_HEAD(&chan->active);
+ INIT_LIST_HEAD(&chan->complete);
+diff --git a/drivers/crypto/chelsio/chcr_core.c b/drivers/crypto/chelsio/chcr_core.c
+index fb5f9bb..6aece3f 100644
+--- a/drivers/crypto/chelsio/chcr_core.c
++++ b/drivers/crypto/chelsio/chcr_core.c
+@@ -51,6 +51,7 @@ static struct cxgb4_uld_info chcr_uld_info = {
+ int assign_chcr_device(struct chcr_dev **dev)
+ {
+ struct uld_ctx *u_ctx;
++ int ret = -ENXIO;
+
+ /*
+ * Which device to use if multiple devices are available TODO
+@@ -58,15 +59,14 @@ int assign_chcr_device(struct chcr_dev **dev)
+ * must go to the same device to maintain the ordering.
+ */
+ mutex_lock(&dev_mutex); /* TODO ? */
+- u_ctx = list_first_entry(&uld_ctx_list, struct uld_ctx, entry);
+- if (!u_ctx) {
+- mutex_unlock(&dev_mutex);
+- return -ENXIO;
++ list_for_each_entry(u_ctx, &uld_ctx_list, entry)
++ if (u_ctx && u_ctx->dev) {
++ *dev = u_ctx->dev;
++ ret = 0;
++ break;
+ }
+-
+- *dev = u_ctx->dev;
+ mutex_unlock(&dev_mutex);
+- return 0;
++ return ret;
+ }
+
+ static int chcr_dev_add(struct uld_ctx *u_ctx)
+@@ -203,10 +203,8 @@ static int chcr_uld_state_change(void *handle, enum cxgb4_state state)
+
+ static int __init chcr_crypto_init(void)
+ {
+- if (cxgb4_register_uld(CXGB4_ULD_CRYPTO, &chcr_uld_info)) {
++ if (cxgb4_register_uld(CXGB4_ULD_CRYPTO, &chcr_uld_info))
+ pr_err("ULD register fail: No chcr crypto support in cxgb4");
+- return -1;
+- }
+
+ return 0;
+ }
+diff --git a/drivers/crypto/qat/qat_c62x/adf_drv.c b/drivers/crypto/qat/qat_c62x/adf_drv.c
+index bc5cbc1..5b2d78a 100644
+--- a/drivers/crypto/qat/qat_c62x/adf_drv.c
++++ b/drivers/crypto/qat/qat_c62x/adf_drv.c
+@@ -233,7 +233,7 @@ static int adf_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+ &hw_data->accel_capabilities_mask);
+
+ /* Find and map all the device's BARS */
+- i = 0;
++ i = (hw_data->fuses & ADF_DEVICE_FUSECTL_MASK) ? 1 : 0;
+ bar_mask = pci_select_bars(pdev, IORESOURCE_MEM);
+ for_each_set_bit(bar_nr, (const unsigned long *)&bar_mask,
+ ADF_PCI_MAX_BARS * 2) {
+diff --git a/drivers/crypto/qat/qat_common/adf_accel_devices.h b/drivers/crypto/qat/qat_common/adf_accel_devices.h
+index e882253..33f0a62 100644
+--- a/drivers/crypto/qat/qat_common/adf_accel_devices.h
++++ b/drivers/crypto/qat/qat_common/adf_accel_devices.h
+@@ -69,6 +69,7 @@
+ #define ADF_ERRSOU5 (0x3A000 + 0xD8)
+ #define ADF_DEVICE_FUSECTL_OFFSET 0x40
+ #define ADF_DEVICE_LEGFUSE_OFFSET 0x4C
++#define ADF_DEVICE_FUSECTL_MASK 0x80000000
+ #define ADF_PCI_MAX_BARS 3
+ #define ADF_DEVICE_NAME_LENGTH 32
+ #define ADF_ETR_MAX_RINGS_PER_BANK 16
+diff --git a/drivers/crypto/qat/qat_common/qat_hal.c b/drivers/crypto/qat/qat_common/qat_hal.c
+index 1e480f1..8c4fd25 100644
+--- a/drivers/crypto/qat/qat_common/qat_hal.c
++++ b/drivers/crypto/qat/qat_common/qat_hal.c
+@@ -456,7 +456,7 @@ static int qat_hal_init_esram(struct icp_qat_fw_loader_handle *handle)
+ unsigned int csr_val;
+ int times = 30;
+
+- if (handle->pci_dev->device == ADF_C3XXX_PCI_DEVICE_ID)
++ if (handle->pci_dev->device != ADF_DH895XCC_PCI_DEVICE_ID)
+ return 0;
+
+ csr_val = ADF_CSR_RD(csr_addr, 0);
+@@ -716,7 +716,7 @@ int qat_hal_init(struct adf_accel_dev *accel_dev)
+ (void __iomem *)((uintptr_t)handle->hal_cap_ae_xfer_csr_addr_v +
+ LOCAL_TO_XFER_REG_OFFSET);
+ handle->pci_dev = pci_info->pci_dev;
+- if (handle->pci_dev->device != ADF_C3XXX_PCI_DEVICE_ID) {
++ if (handle->pci_dev->device == ADF_DH895XCC_PCI_DEVICE_ID) {
+ sram_bar =
+ &pci_info->pci_bars[hw_data->get_sram_bar_id(hw_data)];
+ handle->hal_sram_addr_v = sram_bar->virt_addr;
+diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
+index e6862a7..4e19bde 100644
+--- a/drivers/gpu/drm/drm_atomic.c
++++ b/drivers/gpu/drm/drm_atomic.c
+@@ -1759,16 +1759,16 @@ int drm_mode_atomic_ioctl(struct drm_device *dev,
+
+ if (ret && arg->flags & DRM_MODE_PAGE_FLIP_EVENT) {
+ /*
+- * TEST_ONLY and PAGE_FLIP_EVENT are mutually exclusive,
+- * if they weren't, this code should be called on success
+- * for TEST_ONLY too.
++ * Free the allocated event. drm_atomic_helper_setup_commit
++ * can allocate an event too, so only free it if it's ours
++ * to prevent a double free in drm_atomic_state_clear.
+ */
+-
+ for_each_crtc_in_state(state, crtc, crtc_state, i) {
+- if (!crtc_state->event)
+- continue;
+-
+- drm_event_cancel_free(dev, &crtc_state->event->base);
++ struct drm_pending_vblank_event *event = crtc_state->event;
++ if (event && (event->base.fence || event->base.file_priv)) {
++ drm_event_cancel_free(dev, &event->base);
++ crtc_state->event = NULL;
++ }
+ }
+ }
+
+diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+index a218c2e..0c400f8 100644
+--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
++++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+@@ -1215,14 +1215,14 @@ validate_exec_list(struct drm_device *dev,
+ if (exec[i].offset !=
+ gen8_canonical_addr(exec[i].offset & PAGE_MASK))
+ return -EINVAL;
+-
+- /* From drm_mm perspective address space is continuous,
+- * so from this point we're always using non-canonical
+- * form internally.
+- */
+- exec[i].offset = gen8_noncanonical_addr(exec[i].offset);
+ }
+
++ /* From drm_mm perspective address space is continuous,
++ * so from this point we're always using non-canonical
++ * form internally.
++ */
++ exec[i].offset = gen8_noncanonical_addr(exec[i].offset);
++
+ if (exec[i].alignment && !is_power_of_2(exec[i].alignment))
+ return -EINVAL;
+
+diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
+index 8079e5b..b9be8a6 100644
+--- a/drivers/gpu/drm/i915/intel_display.c
++++ b/drivers/gpu/drm/i915/intel_display.c
+@@ -4280,10 +4280,10 @@ static void page_flip_completed(struct intel_crtc *intel_crtc)
+ drm_crtc_vblank_put(&intel_crtc->base);
+
+ wake_up_all(&dev_priv->pending_flip_queue);
+- queue_work(dev_priv->wq, &work->unpin_work);
+-
+ trace_i915_flip_complete(intel_crtc->plane,
+ work->pending_flip_obj);
++
++ queue_work(dev_priv->wq, &work->unpin_work);
+ }
+
+ static int intel_crtc_wait_for_pending_flips(struct drm_crtc *crtc)
+diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
+index 1c59ca5..cae27c5 100644
+--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
++++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
+@@ -1723,7 +1723,8 @@ bxt_get_dpll(struct intel_crtc *crtc,
+ return NULL;
+
+ if ((encoder->type == INTEL_OUTPUT_DP ||
+- encoder->type == INTEL_OUTPUT_EDP) &&
++ encoder->type == INTEL_OUTPUT_EDP ||
++ encoder->type == INTEL_OUTPUT_DP_MST) &&
+ !bxt_ddi_dp_set_dpll_hw_state(clock, &dpll_hw_state))
+ return NULL;
+
+diff --git a/drivers/hv/channel.c b/drivers/hv/channel.c
+index 16f91c8..5fb4c6d 100644
+--- a/drivers/hv/channel.c
++++ b/drivers/hv/channel.c
+@@ -39,7 +39,7 @@
+ * vmbus_setevent- Trigger an event notification on the specified
+ * channel.
+ */
+-static void vmbus_setevent(struct vmbus_channel *channel)
++void vmbus_setevent(struct vmbus_channel *channel)
+ {
+ struct hv_monitor_page *monitorpage;
+
+@@ -65,6 +65,7 @@ static void vmbus_setevent(struct vmbus_channel *channel)
+ vmbus_set_event(channel);
+ }
+ }
++EXPORT_SYMBOL_GPL(vmbus_setevent);
+
+ /*
+ * vmbus_open - Open the specified channel.
+@@ -635,8 +636,6 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
+ u32 packetlen_aligned = ALIGN(packetlen, sizeof(u64));
+ struct kvec bufferlist[3];
+ u64 aligned_data = 0;
+- int ret;
+- bool signal = false;
+ bool lock = channel->acquire_ring_lock;
+ int num_vecs = ((bufferlen != 0) ? 3 : 1);
+
+@@ -656,33 +655,9 @@ int vmbus_sendpacket_ctl(struct vmbus_channel *channel, void *buffer,
+ bufferlist[2].iov_base = &aligned_data;
+ bufferlist[2].iov_len = (packetlen_aligned - packetlen);
+
+- ret = hv_ringbuffer_write(&channel->outbound, bufferlist, num_vecs,
+- &signal, lock, channel->signal_policy);
+-
+- /*
+- * Signalling the host is conditional on many factors:
+- * 1. The ring state changed from being empty to non-empty.
+- * This is tracked by the variable "signal".
+- * 2. The variable kick_q tracks if more data will be placed
+- * on the ring. We will not signal if more data is
+- * to be placed.
+- *
+- * Based on the channel signal state, we will decide
+- * which signaling policy will be applied.
+- *
+- * If we cannot write to the ring-buffer; signal the host
+- * even if we may not have written anything. This is a rare
+- * enough condition that it should not matter.
+- * NOTE: in this case, the hvsock channel is an exception, because
+- * it looks the host side's hvsock implementation has a throttling
+- * mechanism which can hurt the performance otherwise.
+- */
+-
+- if (((ret == 0) && kick_q && signal) ||
+- (ret && !is_hvsock_channel(channel)))
+- vmbus_setevent(channel);
++ return hv_ringbuffer_write(channel, bufferlist, num_vecs,
++ lock, kick_q);
+
+- return ret;
+ }
+ EXPORT_SYMBOL(vmbus_sendpacket_ctl);
+
+@@ -723,7 +698,6 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
+ u32 flags,
+ bool kick_q)
+ {
+- int ret;
+ int i;
+ struct vmbus_channel_packet_page_buffer desc;
+ u32 descsize;
+@@ -731,7 +705,6 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
+ u32 packetlen_aligned;
+ struct kvec bufferlist[3];
+ u64 aligned_data = 0;
+- bool signal = false;
+ bool lock = channel->acquire_ring_lock;
+
+ if (pagecount > MAX_PAGE_BUFFER_COUNT)
+@@ -769,29 +742,8 @@ int vmbus_sendpacket_pagebuffer_ctl(struct vmbus_channel *channel,
+ bufferlist[2].iov_base = &aligned_data;
+ bufferlist[2].iov_len = (packetlen_aligned - packetlen);
+
+- ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
+- &signal, lock, channel->signal_policy);
+-
+- /*
+- * Signalling the host is conditional on many factors:
+- * 1. The ring state changed from being empty to non-empty.
+- * This is tracked by the variable "signal".
+- * 2. The variable kick_q tracks if more data will be placed
+- * on the ring. We will not signal if more data is
+- * to be placed.
+- *
+- * Based on the channel signal state, we will decide
+- * which signaling policy will be applied.
+- *
+- * If we cannot write to the ring-buffer; signal the host
+- * even if we may not have written anything. This is a rare
+- * enough condition that it should not matter.
+- */
+-
+- if (((ret == 0) && kick_q && signal) || (ret))
+- vmbus_setevent(channel);
+-
+- return ret;
++ return hv_ringbuffer_write(channel, bufferlist, 3,
++ lock, kick_q);
+ }
+ EXPORT_SYMBOL_GPL(vmbus_sendpacket_pagebuffer_ctl);
+
+@@ -822,12 +774,10 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
+ u32 desc_size,
+ void *buffer, u32 bufferlen, u64 requestid)
+ {
+- int ret;
+ u32 packetlen;
+ u32 packetlen_aligned;
+ struct kvec bufferlist[3];
+ u64 aligned_data = 0;
+- bool signal = false;
+ bool lock = channel->acquire_ring_lock;
+
+ packetlen = desc_size + bufferlen;
+@@ -848,13 +798,8 @@ int vmbus_sendpacket_mpb_desc(struct vmbus_channel *channel,
+ bufferlist[2].iov_base = &aligned_data;
+ bufferlist[2].iov_len = (packetlen_aligned - packetlen);
+
+- ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
+- &signal, lock, channel->signal_policy);
+-
+- if (ret == 0 && signal)
+- vmbus_setevent(channel);
+-
+- return ret;
++ return hv_ringbuffer_write(channel, bufferlist, 3,
++ lock, true);
+ }
+ EXPORT_SYMBOL_GPL(vmbus_sendpacket_mpb_desc);
+
+@@ -866,14 +811,12 @@ int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
+ struct hv_multipage_buffer *multi_pagebuffer,
+ void *buffer, u32 bufferlen, u64 requestid)
+ {
+- int ret;
+ struct vmbus_channel_packet_multipage_buffer desc;
+ u32 descsize;
+ u32 packetlen;
+ u32 packetlen_aligned;
+ struct kvec bufferlist[3];
+ u64 aligned_data = 0;
+- bool signal = false;
+ bool lock = channel->acquire_ring_lock;
+ u32 pfncount = NUM_PAGES_SPANNED(multi_pagebuffer->offset,
+ multi_pagebuffer->len);
+@@ -913,13 +856,8 @@ int vmbus_sendpacket_multipagebuffer(struct vmbus_channel *channel,
+ bufferlist[2].iov_base = &aligned_data;
+ bufferlist[2].iov_len = (packetlen_aligned - packetlen);
+
+- ret = hv_ringbuffer_write(&channel->outbound, bufferlist, 3,
+- &signal, lock, channel->signal_policy);
+-
+- if (ret == 0 && signal)
+- vmbus_setevent(channel);
+-
+- return ret;
++ return hv_ringbuffer_write(channel, bufferlist, 3,
++ lock, true);
+ }
+ EXPORT_SYMBOL_GPL(vmbus_sendpacket_multipagebuffer);
+
+@@ -941,16 +879,9 @@ __vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
+ u32 bufferlen, u32 *buffer_actual_len, u64 *requestid,
+ bool raw)
+ {
+- int ret;
+- bool signal = false;
++ return hv_ringbuffer_read(channel, buffer, bufferlen,
++ buffer_actual_len, requestid, raw);
+
+- ret = hv_ringbuffer_read(&channel->inbound, buffer, bufferlen,
+- buffer_actual_len, requestid, &signal, raw);
+-
+- if (signal)
+- vmbus_setevent(channel);
+-
+- return ret;
+ }
+
+ int vmbus_recvpacket(struct vmbus_channel *channel, void *buffer,
+diff --git a/drivers/hv/channel_mgmt.c b/drivers/hv/channel_mgmt.c
+index 1bc1d479..caf3418 100644
+--- a/drivers/hv/channel_mgmt.c
++++ b/drivers/hv/channel_mgmt.c
+@@ -449,8 +449,6 @@ static void vmbus_process_offer(struct vmbus_channel *newchannel)
+ }
+
+ dev_type = hv_get_dev_type(newchannel);
+- if (dev_type == HV_NIC)
+- set_channel_signal_state(newchannel, HV_SIGNAL_POLICY_EXPLICIT);
+
+ init_vp_index(newchannel, dev_type);
+
+diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
+index a5b4442..2b13f2a 100644
+--- a/drivers/hv/hyperv_vmbus.h
++++ b/drivers/hv/hyperv_vmbus.h
+@@ -527,14 +527,14 @@ int hv_ringbuffer_init(struct hv_ring_buffer_info *ring_info,
+
+ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info);
+
+-int hv_ringbuffer_write(struct hv_ring_buffer_info *ring_info,
++int hv_ringbuffer_write(struct vmbus_channel *channel,
+ struct kvec *kv_list,
+- u32 kv_count, bool *signal, bool lock,
+- enum hv_signal_policy policy);
++ u32 kv_count, bool lock,
++ bool kick_q);
+
+-int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
++int hv_ringbuffer_read(struct vmbus_channel *channel,
+ void *buffer, u32 buflen, u32 *buffer_actual_len,
+- u64 *requestid, bool *signal, bool raw);
++ u64 *requestid, bool raw);
+
+ void hv_ringbuffer_get_debuginfo(struct hv_ring_buffer_info *ring_info,
+ struct hv_ring_buffer_debug_info *debug_info);
+diff --git a/drivers/hv/ring_buffer.c b/drivers/hv/ring_buffer.c
+index 08043da..308dbda 100644
+--- a/drivers/hv/ring_buffer.c
++++ b/drivers/hv/ring_buffer.c
+@@ -66,21 +66,25 @@ u32 hv_end_read(struct hv_ring_buffer_info *rbi)
+ * once the ring buffer is empty, it will clear the
+ * interrupt_mask and re-check to see if new data has
+ * arrived.
++ *
++ * KYS: Oct. 30, 2016:
++ * It looks like Windows hosts have logic to deal with DOS attacks that
++ * can be triggered if it receives interrupts when it is not expecting
++ * the interrupt. The host expects interrupts only when the ring
++ * transitions from empty to non-empty (or full to non full on the guest
++ * to host ring).
++ * So, base the signaling decision solely on the ring state until the
++ * host logic is fixed.
+ */
+
+-static bool hv_need_to_signal(u32 old_write, struct hv_ring_buffer_info *rbi,
+- enum hv_signal_policy policy)
++static void hv_signal_on_write(u32 old_write, struct vmbus_channel *channel,
++ bool kick_q)
+ {
++ struct hv_ring_buffer_info *rbi = &channel->outbound;
++
+ virt_mb();
+ if (READ_ONCE(rbi->ring_buffer->interrupt_mask))
+- return false;
+-
+- /*
+- * When the client wants to control signaling,
+- * we only honour the host interrupt mask.
+- */
+- if (policy == HV_SIGNAL_POLICY_EXPLICIT)
+- return true;
++ return;
+
+ /* check interrupt_mask before read_index */
+ virt_rmb();
+@@ -89,9 +93,9 @@ static bool hv_need_to_signal(u32 old_write, struct hv_ring_buffer_info *rbi,
+ * ring transitions from being empty to non-empty.
+ */
+ if (old_write == READ_ONCE(rbi->ring_buffer->read_index))
+- return true;
++ vmbus_setevent(channel);
+
+- return false;
++ return;
+ }
+
+ /* Get the next write location for the specified ring buffer. */
+@@ -280,9 +284,9 @@ void hv_ringbuffer_cleanup(struct hv_ring_buffer_info *ring_info)
+ }
+
+ /* Write to the ring buffer. */
+-int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
+- struct kvec *kv_list, u32 kv_count, bool *signal, bool lock,
+- enum hv_signal_policy policy)
++int hv_ringbuffer_write(struct vmbus_channel *channel,
++ struct kvec *kv_list, u32 kv_count, bool lock,
++ bool kick_q)
+ {
+ int i = 0;
+ u32 bytes_avail_towrite;
+@@ -292,6 +296,7 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
+ u32 old_write;
+ u64 prev_indices = 0;
+ unsigned long flags = 0;
++ struct hv_ring_buffer_info *outring_info = &channel->outbound;
+
+ for (i = 0; i < kv_count; i++)
+ totalbytes_towrite += kv_list[i].iov_len;
+@@ -344,13 +349,13 @@ int hv_ringbuffer_write(struct hv_ring_buffer_info *outring_info,
+ if (lock)
+ spin_unlock_irqrestore(&outring_info->ring_lock, flags);
+
+- *signal = hv_need_to_signal(old_write, outring_info, policy);
++ hv_signal_on_write(old_write, channel, kick_q);
+ return 0;
+ }
+
+-int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
++int hv_ringbuffer_read(struct vmbus_channel *channel,
+ void *buffer, u32 buflen, u32 *buffer_actual_len,
+- u64 *requestid, bool *signal, bool raw)
++ u64 *requestid, bool raw)
+ {
+ u32 bytes_avail_toread;
+ u32 next_read_location = 0;
+@@ -359,6 +364,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+ u32 offset;
+ u32 packetlen;
+ int ret = 0;
++ struct hv_ring_buffer_info *inring_info = &channel->inbound;
+
+ if (buflen <= 0)
+ return -EINVAL;
+@@ -377,6 +383,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+ return ret;
+ }
+
++ init_cached_read_index(channel);
+ next_read_location = hv_get_next_read_location(inring_info);
+ next_read_location = hv_copyfrom_ringbuffer(inring_info, &desc,
+ sizeof(desc),
+@@ -416,7 +423,7 @@ int hv_ringbuffer_read(struct hv_ring_buffer_info *inring_info,
+ /* Update the read index */
+ hv_set_next_read_location(inring_info, next_read_location);
+
+- *signal = hv_need_to_signal_on_read(inring_info);
++ hv_signal_on_read(channel);
+
+ return ret;
+ }
+diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c
+index 1869152..9b732c5 100644
+--- a/drivers/infiniband/sw/rxe/rxe_mr.c
++++ b/drivers/infiniband/sw/rxe/rxe_mr.c
+@@ -59,9 +59,11 @@ int mem_check_range(struct rxe_mem *mem, u64 iova, size_t length)
+
+ case RXE_MEM_TYPE_MR:
+ case RXE_MEM_TYPE_FMR:
+- return ((iova < mem->iova) ||
+- ((iova + length) > (mem->iova + mem->length))) ?
+- -EFAULT : 0;
++ if (iova < mem->iova ||
++ length > mem->length ||
++ iova > mem->iova + mem->length - length)
++ return -EFAULT;
++ return 0;
+
+ default:
+ return -EFAULT;
+diff --git a/drivers/infiniband/sw/rxe/rxe_resp.c b/drivers/infiniband/sw/rxe/rxe_resp.c
+index dd3d88a..ccf6247 100644
+--- a/drivers/infiniband/sw/rxe/rxe_resp.c
++++ b/drivers/infiniband/sw/rxe/rxe_resp.c
+@@ -472,7 +472,7 @@ static enum resp_states check_rkey(struct rxe_qp *qp,
+ goto err2;
+ }
+
+- resid = mtu;
++ qp->resp.resid = mtu;
+ } else {
+ if (pktlen != resid) {
+ state = RESPST_ERR_LENGTH;
+diff --git a/drivers/input/misc/uinput.c b/drivers/input/misc/uinput.c
+index 92595b9..022be0e 100644
+--- a/drivers/input/misc/uinput.c
++++ b/drivers/input/misc/uinput.c
+@@ -263,13 +263,21 @@ static int uinput_create_device(struct uinput_device *udev)
+ return -EINVAL;
+ }
+
+- if (test_bit(ABS_MT_SLOT, dev->absbit)) {
+- nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
+- error = input_mt_init_slots(dev, nslot, 0);
+- if (error)
++ if (test_bit(EV_ABS, dev->evbit)) {
++ input_alloc_absinfo(dev);
++ if (!dev->absinfo) {
++ error = -EINVAL;
+ goto fail1;
+- } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
+- input_set_events_per_packet(dev, 60);
++ }
++
++ if (test_bit(ABS_MT_SLOT, dev->absbit)) {
++ nslot = input_abs_get_max(dev, ABS_MT_SLOT) + 1;
++ error = input_mt_init_slots(dev, nslot, 0);
++ if (error)
++ goto fail1;
++ } else if (test_bit(ABS_MT_POSITION_X, dev->absbit)) {
++ input_set_events_per_packet(dev, 60);
++ }
+ }
+
+ if (test_bit(EV_FF, dev->evbit) && !udev->ff_effects_max) {
+diff --git a/drivers/md/dm-rq.c b/drivers/md/dm-rq.c
+index 31a89c8..2c96542 100644
+--- a/drivers/md/dm-rq.c
++++ b/drivers/md/dm-rq.c
+@@ -804,6 +804,10 @@ static void dm_old_request_fn(struct request_queue *q)
+ int srcu_idx;
+ struct dm_table *map = dm_get_live_table(md, &srcu_idx);
+
++ if (unlikely(!map)) {
++ dm_put_live_table(md, srcu_idx);
++ return;
++ }
+ ti = dm_table_find_target(map, pos);
+ dm_put_live_table(md, srcu_idx);
+ }
+diff --git a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+index 878950a..2cf8b1d 100644
+--- a/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
++++ b/drivers/net/ethernet/hisilicon/hns/hns_dsaf_reg.h
+@@ -1007,9 +1007,7 @@
+
+ static inline void dsaf_write_reg(void __iomem *base, u32 reg, u32 value)
+ {
+- u8 __iomem *reg_addr = ACCESS_ONCE(base);
+-
+- writel(value, reg_addr + reg);
++ writel(value, base + reg);
+ }
+
+ #define dsaf_write_dev(a, reg, value) \
+@@ -1017,9 +1015,7 @@ static inline void dsaf_write_reg(void __iomem *base, u32 reg, u32 value)
+
+ static inline u32 dsaf_read_reg(u8 __iomem *base, u32 reg)
+ {
+- u8 __iomem *reg_addr = ACCESS_ONCE(base);
+-
+- return readl(reg_addr + reg);
++ return readl(base + reg);
+ }
+
+ static inline void dsaf_write_syscon(struct regmap *base, u32 reg, u32 value)
+diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+index 27ff401..51c6a57 100644
+--- a/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
++++ b/drivers/net/ethernet/mellanox/mlx5/core/en_ethtool.c
+@@ -991,6 +991,7 @@ static int mlx5e_set_rxfh(struct net_device *dev, const u32 *indir,
+ {
+ struct mlx5e_priv *priv = netdev_priv(dev);
+ int inlen = MLX5_ST_SZ_BYTES(modify_tir_in);
++ bool hash_changed = false;
+ void *in;
+
+ if ((hfunc != ETH_RSS_HASH_NO_CHANGE) &&
+@@ -1012,14 +1013,21 @@ static int mlx5e_set_rxfh(struct net_device *dev, const u32 *indir,
+ mlx5e_redirect_rqt(priv, rqtn, MLX5E_INDIR_RQT_SIZE, 0);
+ }
+
+- if (key)
++ if (hfunc != ETH_RSS_HASH_NO_CHANGE &&
++ hfunc != priv->params.rss_hfunc) {
++ priv->params.rss_hfunc = hfunc;
++ hash_changed = true;
++ }
++
++ if (key) {
+ memcpy(priv->params.toeplitz_hash_key, key,
+ sizeof(priv->params.toeplitz_hash_key));
++ hash_changed = hash_changed ||
++ priv->params.rss_hfunc == ETH_RSS_HASH_TOP;
++ }
+
+- if (hfunc != ETH_RSS_HASH_NO_CHANGE)
+- priv->params.rss_hfunc = hfunc;
+-
+- mlx5e_modify_tirs_hash(priv, in, inlen);
++ if (hash_changed)
++ mlx5e_modify_tirs_hash(priv, in, inlen);
+
+ mutex_unlock(&priv->state_lock);
+
+diff --git a/drivers/net/hyperv/netvsc.c b/drivers/net/hyperv/netvsc.c
+index 720b5fa..c2ac39a 100644
+--- a/drivers/net/hyperv/netvsc.c
++++ b/drivers/net/hyperv/netvsc.c
+@@ -1288,6 +1288,9 @@ void netvsc_channel_cb(void *context)
+ ndev = hv_get_drvdata(device);
+ buffer = get_per_channel_state(channel);
+
++ /* commit_rd_index() -> hv_signal_on_read() needs this. */
++ init_cached_read_index(channel);
++
+ do {
+ desc = get_next_pkt_raw(channel);
+ if (desc != NULL) {
+@@ -1340,6 +1343,9 @@ void netvsc_channel_cb(void *context)
+
+ bufferlen = bytes_recvd;
+ }
++
++ init_cached_read_index(channel);
++
+ } while (1);
+
+ if (bufferlen > NETVSC_PACKET_SIZE)
+diff --git a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c
+index 8b6e37c..20bfb37 100644
+--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c
++++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192ce/sw.c
+@@ -96,7 +96,7 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
+ struct rtl_priv *rtlpriv = rtl_priv(hw);
+ struct rtl_pci *rtlpci = rtl_pcidev(rtl_pcipriv(hw));
+ struct rtl_hal *rtlhal = rtl_hal(rtl_priv(hw));
+- char *fw_name = "rtlwifi/rtl8192cfwU.bin";
++ char *fw_name;
+
+ rtl8192ce_bt_reg_init(hw);
+
+@@ -168,8 +168,13 @@ int rtl92c_init_sw_vars(struct ieee80211_hw *hw)
+ }
+
+ /* request fw */
+- if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version))
++ if (IS_VENDOR_UMC_A_CUT(rtlhal->version) &&
++ !IS_92C_SERIAL(rtlhal->version))
++ fw_name = "rtlwifi/rtl8192cfwU.bin";
++ else if (IS_81XXC_VENDOR_UMC_B_CUT(rtlhal->version))
+ fw_name = "rtlwifi/rtl8192cfwU_B.bin";
++ else
++ fw_name = "rtlwifi/rtl8192cfw.bin";
+
+ rtlpriv->max_fw_size = 0x4000;
+ pr_info("Using firmware %s\n", fw_name);
+diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
+index bf2744e..0cdcb21 100644
+--- a/drivers/net/xen-netfront.c
++++ b/drivers/net/xen-netfront.c
+@@ -1397,6 +1397,8 @@ static void xennet_disconnect_backend(struct netfront_info *info)
+ for (i = 0; i < num_queues && info->queues; ++i) {
+ struct netfront_queue *queue = &info->queues[i];
+
++ del_timer_sync(&queue->rx_refill_timer);
++
+ if (queue->tx_irq && (queue->tx_irq == queue->rx_irq))
+ unbind_from_irqhandler(queue->tx_irq, queue);
+ if (queue->tx_irq && (queue->tx_irq != queue->rx_irq)) {
+@@ -1751,7 +1753,6 @@ static void xennet_destroy_queues(struct netfront_info *info)
+
+ if (netif_running(info->netdev))
+ napi_disable(&queue->napi);
+- del_timer_sync(&queue->rx_refill_timer);
+ netif_napi_del(&queue->napi);
+ }
+
+diff --git a/drivers/nvdimm/namespace_devs.c b/drivers/nvdimm/namespace_devs.c
+index 1480734..aefca64 100644
+--- a/drivers/nvdimm/namespace_devs.c
++++ b/drivers/nvdimm/namespace_devs.c
+@@ -962,8 +962,8 @@ static ssize_t __size_store(struct device *dev, unsigned long long val)
+ struct nvdimm_drvdata *ndd;
+ struct nd_label_id label_id;
+ u32 flags = 0, remainder;
++ int rc, i, id = -1;
+ u8 *uuid = NULL;
+- int rc, i;
+
+ if (dev->driver || ndns->claim)
+ return -EBUSY;
+@@ -972,11 +972,13 @@ static ssize_t __size_store(struct device *dev, unsigned long long val)
+ struct nd_namespace_pmem *nspm = to_nd_namespace_pmem(dev);
+
+ uuid = nspm->uuid;
++ id = nspm->id;
+ } else if (is_namespace_blk(dev)) {
+ struct nd_namespace_blk *nsblk = to_nd_namespace_blk(dev);
+
+ uuid = nsblk->uuid;
+ flags = NSLABEL_FLAG_LOCAL;
++ id = nsblk->id;
+ }
+
+ /*
+@@ -1039,10 +1041,11 @@ static ssize_t __size_store(struct device *dev, unsigned long long val)
+
+ /*
+ * Try to delete the namespace if we deleted all of its
+- * allocation, this is not the seed device for the region, and
+- * it is not actively claimed by a btt instance.
++ * allocation, this is not the seed or 0th device for the
++ * region, and it is not actively claimed by a btt, pfn, or dax
++ * instance.
+ */
+- if (val == 0 && nd_region->ns_seed != dev && !ndns->claim)
++ if (val == 0 && id != 0 && nd_region->ns_seed != dev && !ndns->claim)
+ nd_device_unregister(dev, ND_ASYNC);
+
+ return rc;
+diff --git a/drivers/nvdimm/pfn_devs.c b/drivers/nvdimm/pfn_devs.c
+index a2ac9e6..6c033c9 100644
+--- a/drivers/nvdimm/pfn_devs.c
++++ b/drivers/nvdimm/pfn_devs.c
+@@ -627,15 +627,12 @@ static int nd_pfn_init(struct nd_pfn *nd_pfn)
+ size = resource_size(&nsio->res);
+ npfns = (size - start_pad - end_trunc - SZ_8K) / SZ_4K;
+ if (nd_pfn->mode == PFN_MODE_PMEM) {
+- unsigned long memmap_size;
+-
+ /*
+ * vmemmap_populate_hugepages() allocates the memmap array in
+ * HPAGE_SIZE chunks.
+ */
+- memmap_size = ALIGN(64 * npfns, HPAGE_SIZE);
+- offset = ALIGN(start + SZ_8K + memmap_size + dax_label_reserve,
+- nd_pfn->align) - start;
++ offset = ALIGN(start + SZ_8K + 64 * npfns + dax_label_reserve,
++ max(nd_pfn->align, HPAGE_SIZE)) - start;
+ } else if (nd_pfn->mode == PFN_MODE_RAM)
+ offset = ALIGN(start + SZ_8K + dax_label_reserve,
+ nd_pfn->align) - start;
+diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
+index 75f820ca..27ff38f 100644
+--- a/drivers/s390/scsi/zfcp_fsf.c
++++ b/drivers/s390/scsi/zfcp_fsf.c
+@@ -1583,7 +1583,7 @@ static void zfcp_fsf_open_wka_port_handler(struct zfcp_fsf_req *req)
+ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
+ {
+ struct zfcp_qdio *qdio = wka_port->adapter->qdio;
+- struct zfcp_fsf_req *req = NULL;
++ struct zfcp_fsf_req *req;
+ int retval = -EIO;
+
+ spin_lock_irq(&qdio->req_q_lock);
+@@ -1612,7 +1612,7 @@ int zfcp_fsf_open_wka_port(struct zfcp_fc_wka_port *wka_port)
+ zfcp_fsf_req_free(req);
+ out:
+ spin_unlock_irq(&qdio->req_q_lock);
+- if (req && !IS_ERR(req))
++ if (!retval)
+ zfcp_dbf_rec_run_wka("fsowp_1", wka_port, req->req_id);
+ return retval;
+ }
+@@ -1638,7 +1638,7 @@ static void zfcp_fsf_close_wka_port_handler(struct zfcp_fsf_req *req)
+ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
+ {
+ struct zfcp_qdio *qdio = wka_port->adapter->qdio;
+- struct zfcp_fsf_req *req = NULL;
++ struct zfcp_fsf_req *req;
+ int retval = -EIO;
+
+ spin_lock_irq(&qdio->req_q_lock);
+@@ -1667,7 +1667,7 @@ int zfcp_fsf_close_wka_port(struct zfcp_fc_wka_port *wka_port)
+ zfcp_fsf_req_free(req);
+ out:
+ spin_unlock_irq(&qdio->req_q_lock);
+- if (req && !IS_ERR(req))
++ if (!retval)
+ zfcp_dbf_rec_run_wka("fscwp_1", wka_port, req->req_id);
+ return retval;
+ }
+diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c
+index 341ea32..792d3e7 100644
+--- a/drivers/scsi/aacraid/comminit.c
++++ b/drivers/scsi/aacraid/comminit.c
+@@ -50,9 +50,13 @@ struct aac_common aac_config = {
+
+ static inline int aac_is_msix_mode(struct aac_dev *dev)
+ {
+- u32 status;
++ u32 status = 0;
+
+- status = src_readl(dev, MUnit.OMR);
++ if (dev->pdev->device == PMC_DEVICE_S6 ||
++ dev->pdev->device == PMC_DEVICE_S7 ||
++ dev->pdev->device == PMC_DEVICE_S8) {
++ status = src_readl(dev, MUnit.OMR);
++ }
+ return (status & AAC_INT_MODE_MSIX);
+ }
+
+diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+index e3b911c..91dfd58 100644
+--- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
++++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c
+@@ -3929,6 +3929,7 @@ static struct configfs_attribute *ibmvscsis_tpg_attrs[] = {
+ static const struct target_core_fabric_ops ibmvscsis_ops = {
+ .module = THIS_MODULE,
+ .name = "ibmvscsis",
++ .max_data_sg_nents = MAX_TXU / PAGE_SIZE,
+ .get_fabric_name = ibmvscsis_get_fabric_name,
+ .tpg_get_wwn = ibmvscsis_get_fabric_wwn,
+ .tpg_get_tag = ibmvscsis_get_tag,
+diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+index f84a608..8a7941b 100644
+--- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c
++++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c
+@@ -51,6 +51,7 @@
+ #include <linux/workqueue.h>
+ #include <linux/delay.h>
+ #include <linux/pci.h>
++#include <linux/pci-aspm.h>
+ #include <linux/interrupt.h>
+ #include <linux/aer.h>
+ #include <linux/raid_class.h>
+@@ -8706,6 +8707,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+
+ switch (hba_mpi_version) {
+ case MPI2_VERSION:
++ pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S |
++ PCIE_LINK_STATE_L1 | PCIE_LINK_STATE_CLKPM);
+ /* Use mpt2sas driver host template for SAS 2.0 HBA's */
+ shost = scsi_host_alloc(&mpt2sas_driver_template,
+ sizeof(struct MPT3SAS_ADAPTER));
+diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
+index 078d797..bea819e 100644
+--- a/drivers/scsi/qla2xxx/qla_os.c
++++ b/drivers/scsi/qla2xxx/qla_os.c
+@@ -1459,7 +1459,7 @@ qla2x00_abort_all_cmds(scsi_qla_host_t *vha, int res)
+ /* Don't abort commands in adapter during EEH
+ * recovery as it's not accessible/responding.
+ */
+- if (!ha->flags.eeh_busy) {
++ if (GET_CMD_SP(sp) && !ha->flags.eeh_busy) {
+ /* Get a reference to the sp and drop the lock.
+ * The reference ensures this sp->done() call
+ * - and not the call in qla2xxx_eh_abort() -
+diff --git a/drivers/target/target_core_device.c b/drivers/target/target_core_device.c
+index 6b42348..ea9617c 100644
+--- a/drivers/target/target_core_device.c
++++ b/drivers/target/target_core_device.c
+@@ -351,7 +351,15 @@ int core_enable_device_list_for_node(
+ kfree(new);
+ return -EINVAL;
+ }
+- BUG_ON(orig->se_lun_acl != NULL);
++ if (orig->se_lun_acl != NULL) {
++ pr_warn_ratelimited("Detected existing explicit"
++ " se_lun_acl->se_lun_group reference for %s"
++ " mapped_lun: %llu, failing\n",
++ nacl->initiatorname, mapped_lun);
++ mutex_unlock(&nacl->lun_entry_mutex);
++ kfree(new);
++ return -EINVAL;
++ }
+
+ rcu_assign_pointer(new->se_lun, lun);
+ rcu_assign_pointer(new->se_lun_acl, lun_acl);
+diff --git a/drivers/target/target_core_sbc.c b/drivers/target/target_core_sbc.c
+index 04f616b..aabd660 100644
+--- a/drivers/target/target_core_sbc.c
++++ b/drivers/target/target_core_sbc.c
+@@ -450,6 +450,7 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success,
+ int *post_ret)
+ {
+ struct se_device *dev = cmd->se_dev;
++ sense_reason_t ret = TCM_NO_SENSE;
+
+ /*
+ * Only set SCF_COMPARE_AND_WRITE_POST to force a response fall-through
+@@ -457,9 +458,12 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success,
+ * sent to the backend driver.
+ */
+ spin_lock_irq(&cmd->t_state_lock);
+- if ((cmd->transport_state & CMD_T_SENT) && !cmd->scsi_status) {
++ if (cmd->transport_state & CMD_T_SENT) {
+ cmd->se_cmd_flags |= SCF_COMPARE_AND_WRITE_POST;
+ *post_ret = 1;
++
++ if (cmd->scsi_status == SAM_STAT_CHECK_CONDITION)
++ ret = TCM_LOGICAL_UNIT_COMMUNICATION_FAILURE;
+ }
+ spin_unlock_irq(&cmd->t_state_lock);
+
+@@ -469,7 +473,7 @@ static sense_reason_t compare_and_write_post(struct se_cmd *cmd, bool success,
+ */
+ up(&dev->caw_sem);
+
+- return TCM_NO_SENSE;
++ return ret;
+ }
+
+ static sense_reason_t compare_and_write_callback(struct se_cmd *cmd, bool success,
+diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
+index 7dfefd6..767d1eb6 100644
+--- a/drivers/target/target_core_transport.c
++++ b/drivers/target/target_core_transport.c
+@@ -457,8 +457,20 @@ static void target_complete_nacl(struct kref *kref)
+ {
+ struct se_node_acl *nacl = container_of(kref,
+ struct se_node_acl, acl_kref);
++ struct se_portal_group *se_tpg = nacl->se_tpg;
+
+- complete(&nacl->acl_free_comp);
++ if (!nacl->dynamic_stop) {
++ complete(&nacl->acl_free_comp);
++ return;
++ }
++
++ mutex_lock(&se_tpg->acl_node_mutex);
++ list_del(&nacl->acl_list);
++ mutex_unlock(&se_tpg->acl_node_mutex);
++
++ core_tpg_wait_for_nacl_pr_ref(nacl);
++ core_free_device_list_for_node(nacl, se_tpg);
++ kfree(nacl);
+ }
+
+ void target_put_nacl(struct se_node_acl *nacl)
+@@ -499,12 +511,39 @@ EXPORT_SYMBOL(transport_deregister_session_configfs);
+ void transport_free_session(struct se_session *se_sess)
+ {
+ struct se_node_acl *se_nacl = se_sess->se_node_acl;
++
+ /*
+ * Drop the se_node_acl->nacl_kref obtained from within
+ * core_tpg_get_initiator_node_acl().
+ */
+ if (se_nacl) {
++ struct se_portal_group *se_tpg = se_nacl->se_tpg;
++ const struct target_core_fabric_ops *se_tfo = se_tpg->se_tpg_tfo;
++ unsigned long flags;
++
+ se_sess->se_node_acl = NULL;
++
++ /*
++ * Also determine if we need to drop the extra ->cmd_kref if
++ * it had been previously dynamically generated, and
++ * the endpoint is not caching dynamic ACLs.
++ */
++ mutex_lock(&se_tpg->acl_node_mutex);
++ if (se_nacl->dynamic_node_acl &&
++ !se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
++ spin_lock_irqsave(&se_nacl->nacl_sess_lock, flags);
++ if (list_empty(&se_nacl->acl_sess_list))
++ se_nacl->dynamic_stop = true;
++ spin_unlock_irqrestore(&se_nacl->nacl_sess_lock, flags);
++
++ if (se_nacl->dynamic_stop)
++ list_del(&se_nacl->acl_list);
++ }
++ mutex_unlock(&se_tpg->acl_node_mutex);
++
++ if (se_nacl->dynamic_stop)
++ target_put_nacl(se_nacl);
++
+ target_put_nacl(se_nacl);
+ }
+ if (se_sess->sess_cmd_map) {
+@@ -518,16 +557,12 @@ EXPORT_SYMBOL(transport_free_session);
+ void transport_deregister_session(struct se_session *se_sess)
+ {
+ struct se_portal_group *se_tpg = se_sess->se_tpg;
+- const struct target_core_fabric_ops *se_tfo;
+- struct se_node_acl *se_nacl;
+ unsigned long flags;
+- bool drop_nacl = false;
+
+ if (!se_tpg) {
+ transport_free_session(se_sess);
+ return;
+ }
+- se_tfo = se_tpg->se_tpg_tfo;
+
+ spin_lock_irqsave(&se_tpg->session_lock, flags);
+ list_del(&se_sess->sess_list);
+@@ -535,33 +570,15 @@ void transport_deregister_session(struct se_session *se_sess)
+ se_sess->fabric_sess_ptr = NULL;
+ spin_unlock_irqrestore(&se_tpg->session_lock, flags);
+
+- /*
+- * Determine if we need to do extra work for this initiator node's
+- * struct se_node_acl if it had been previously dynamically generated.
+- */
+- se_nacl = se_sess->se_node_acl;
+-
+- mutex_lock(&se_tpg->acl_node_mutex);
+- if (se_nacl && se_nacl->dynamic_node_acl) {
+- if (!se_tfo->tpg_check_demo_mode_cache(se_tpg)) {
+- list_del(&se_nacl->acl_list);
+- drop_nacl = true;
+- }
+- }
+- mutex_unlock(&se_tpg->acl_node_mutex);
+-
+- if (drop_nacl) {
+- core_tpg_wait_for_nacl_pr_ref(se_nacl);
+- core_free_device_list_for_node(se_nacl, se_tpg);
+- se_sess->se_node_acl = NULL;
+- kfree(se_nacl);
+- }
+ pr_debug("TARGET_CORE[%s]: Deregistered fabric_sess\n",
+ se_tpg->se_tpg_tfo->get_fabric_name());
+ /*
+ * If last kref is dropping now for an explicit NodeACL, awake sleeping
+ * ->acl_free_comp caller to wakeup configfs se_node_acl->acl_group
+ * removal context from within transport_free_session() code.
++ *
++ * For dynamic ACL, target_put_nacl() uses target_complete_nacl()
++ * to release all remaining generate_node_acl=1 created ACL resources.
+ */
+
+ transport_free_session(se_sess);
+@@ -3086,7 +3103,6 @@ static void target_tmr_work(struct work_struct *work)
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+ goto check_stop;
+ }
+- cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
+ cmd->se_tfo->queue_tm_rsp(cmd);
+@@ -3099,11 +3115,25 @@ int transport_generic_handle_tmr(
+ struct se_cmd *cmd)
+ {
+ unsigned long flags;
++ bool aborted = false;
+
+ spin_lock_irqsave(&cmd->t_state_lock, flags);
+- cmd->transport_state |= CMD_T_ACTIVE;
++ if (cmd->transport_state & CMD_T_ABORTED) {
++ aborted = true;
++ } else {
++ cmd->t_state = TRANSPORT_ISTATE_PROCESSING;
++ cmd->transport_state |= CMD_T_ACTIVE;
++ }
+ spin_unlock_irqrestore(&cmd->t_state_lock, flags);
+
++ if (aborted) {
++ pr_warn_ratelimited("handle_tmr caught CMD_T_ABORTED TMR %d"
++ "ref_tag: %llu tag: %llu\n", cmd->se_tmr_req->function,
++ cmd->se_tmr_req->ref_task_tag, cmd->tag);
++ transport_cmd_check_stop_to_fabric(cmd);
++ return 0;
++ }
++
+ INIT_WORK(&cmd->work, target_tmr_work);
+ queue_work(cmd->se_dev->tmr_wq, &cmd->work);
+ return 0;
+diff --git a/drivers/target/target_core_xcopy.c b/drivers/target/target_core_xcopy.c
+index 094a144..18848ba 100644
+--- a/drivers/target/target_core_xcopy.c
++++ b/drivers/target/target_core_xcopy.c
+@@ -836,7 +836,7 @@ static void target_xcopy_do_work(struct work_struct *work)
+ " CHECK_CONDITION -> sending response\n", rc);
+ ec_cmd->scsi_status = SAM_STAT_CHECK_CONDITION;
+ }
+- target_complete_cmd(ec_cmd, SAM_STAT_CHECK_CONDITION);
++ target_complete_cmd(ec_cmd, ec_cmd->scsi_status);
+ }
+
+ sense_reason_t target_do_xcopy(struct se_cmd *se_cmd)
+diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
+index 7acbd2c..1782804 100644
+--- a/fs/btrfs/ioctl.c
++++ b/fs/btrfs/ioctl.c
+@@ -5648,6 +5648,10 @@ long btrfs_ioctl(struct file *file, unsigned int
+ #ifdef CONFIG_COMPAT
+ long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+ {
++ /*
++ * These all access 32-bit values anyway so no further
++ * handling is necessary.
++ */
+ switch (cmd) {
+ case FS_IOC32_GETFLAGS:
+ cmd = FS_IOC_GETFLAGS;
+@@ -5658,8 +5662,6 @@ long btrfs_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+ case FS_IOC32_GETVERSION:
+ cmd = FS_IOC_GETVERSION;
+ break;
+- default:
+- return -ENOIOCTLCMD;
+ }
+
+ return btrfs_ioctl(file, cmd, (unsigned long) compat_ptr(arg));
+diff --git a/include/linux/cpumask.h b/include/linux/cpumask.h
+index da7fbf1..fa3b155 100644
+--- a/include/linux/cpumask.h
++++ b/include/linux/cpumask.h
+@@ -560,7 +560,7 @@ static inline void cpumask_copy(struct cpumask *dstp,
+ static inline int cpumask_parse_user(const char __user *buf, int len,
+ struct cpumask *dstp)
+ {
+- return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpu_ids);
++ return bitmap_parse_user(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
+ }
+
+ /**
+@@ -575,7 +575,7 @@ static inline int cpumask_parselist_user(const char __user *buf, int len,
+ struct cpumask *dstp)
+ {
+ return bitmap_parselist_user(buf, len, cpumask_bits(dstp),
+- nr_cpu_ids);
++ nr_cpumask_bits);
+ }
+
+ /**
+@@ -590,7 +590,7 @@ static inline int cpumask_parse(const char *buf, struct cpumask *dstp)
+ char *nl = strchr(buf, '\n');
+ unsigned int len = nl ? (unsigned int)(nl - buf) : strlen(buf);
+
+- return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpu_ids);
++ return bitmap_parse(buf, len, cpumask_bits(dstp), nr_cpumask_bits);
+ }
+
+ /**
+@@ -602,7 +602,7 @@ static inline int cpumask_parse(const char *buf, struct cpumask *dstp)
+ */
+ static inline int cpulist_parse(const char *buf, struct cpumask *dstp)
+ {
+- return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpu_ids);
++ return bitmap_parselist(buf, cpumask_bits(dstp), nr_cpumask_bits);
+ }
+
+ /**
+diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
+index cd184bd..c92a083 100644
+--- a/include/linux/hyperv.h
++++ b/include/linux/hyperv.h
+@@ -128,6 +128,7 @@ struct hv_ring_buffer_info {
+ u32 ring_data_startoffset;
+ u32 priv_write_index;
+ u32 priv_read_index;
++ u32 cached_read_index;
+ };
+
+ /*
+@@ -180,6 +181,19 @@ static inline u32 hv_get_bytes_to_write(struct hv_ring_buffer_info *rbi)
+ return write;
+ }
+
++static inline u32 hv_get_cached_bytes_to_write(
++ const struct hv_ring_buffer_info *rbi)
++{
++ u32 read_loc, write_loc, dsize, write;
++
++ dsize = rbi->ring_datasize;
++ read_loc = rbi->cached_read_index;
++ write_loc = rbi->ring_buffer->write_index;
++
++ write = write_loc >= read_loc ? dsize - (write_loc - read_loc) :
++ read_loc - write_loc;
++ return write;
++}
+ /*
+ * VMBUS version is 32 bit entity broken up into
+ * two 16 bit quantities: major_number. minor_number.
+@@ -1447,6 +1461,7 @@ void hv_event_tasklet_enable(struct vmbus_channel *channel);
+
+ void hv_process_channel_removal(struct vmbus_channel *channel, u32 relid);
+
++void vmbus_setevent(struct vmbus_channel *channel);
+ /*
+ * Negotiated version with the Host.
+ */
+@@ -1479,10 +1494,11 @@ hv_get_ring_buffer(struct hv_ring_buffer_info *ring_info)
+ * there is room for the producer to send the pending packet.
+ */
+
+-static inline bool hv_need_to_signal_on_read(struct hv_ring_buffer_info *rbi)
++static inline void hv_signal_on_read(struct vmbus_channel *channel)
+ {
+- u32 cur_write_sz;
++ u32 cur_write_sz, cached_write_sz;
+ u32 pending_sz;
++ struct hv_ring_buffer_info *rbi = &channel->inbound;
+
+ /*
+ * Issue a full memory barrier before making the signaling decision.
+@@ -1500,14 +1516,26 @@ static inline bool hv_need_to_signal_on_read(struct hv_ring_buffer_info *rbi)
+ pending_sz = READ_ONCE(rbi->ring_buffer->pending_send_sz);
+ /* If the other end is not blocked on write don't bother. */
+ if (pending_sz == 0)
+- return false;
++ return;
+
+ cur_write_sz = hv_get_bytes_to_write(rbi);
+
+- if (cur_write_sz >= pending_sz)
+- return true;
++ if (cur_write_sz < pending_sz)
++ return;
++
++ cached_write_sz = hv_get_cached_bytes_to_write(rbi);
++ if (cached_write_sz < pending_sz)
++ vmbus_setevent(channel);
++
++ return;
++}
++
++static inline void
++init_cached_read_index(struct vmbus_channel *channel)
++{
++ struct hv_ring_buffer_info *rbi = &channel->inbound;
+
+- return false;
++ rbi->cached_read_index = rbi->ring_buffer->read_index;
+ }
+
+ /*
+@@ -1571,6 +1599,8 @@ static inline void put_pkt_raw(struct vmbus_channel *channel,
+ * This call commits the read index and potentially signals the host.
+ * Here is the pattern for using the "in-place" consumption APIs:
+ *
++ * init_cached_read_index();
++ *
+ * while (get_next_pkt_raw() {
+ * process the packet "in-place";
+ * put_pkt_raw();
+@@ -1589,8 +1619,7 @@ static inline void commit_rd_index(struct vmbus_channel *channel)
+ virt_rmb();
+ ring_info->ring_buffer->read_index = ring_info->priv_read_index;
+
+- if (hv_need_to_signal_on_read(ring_info))
+- vmbus_set_event(channel);
++ hv_signal_on_read(channel);
+ }
+
+
+diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
+index c211900..48bc1ac 100644
+--- a/include/target/target_core_base.h
++++ b/include/target/target_core_base.h
+@@ -538,6 +538,7 @@ struct se_node_acl {
+ char initiatorname[TRANSPORT_IQN_LEN];
+ /* Used to signal demo mode created ACL, disabled by default */
+ bool dynamic_node_acl;
++ bool dynamic_stop;
+ u32 queue_depth;
+ u32 acl_index;
+ enum target_prot_type saved_prot_type;
+diff --git a/kernel/events/core.c b/kernel/events/core.c
+index b1cfd74..4b33231 100644
+--- a/kernel/events/core.c
++++ b/kernel/events/core.c
+@@ -3461,14 +3461,15 @@ struct perf_read_data {
+ int ret;
+ };
+
+-static int find_cpu_to_read(struct perf_event *event, int local_cpu)
++static int __perf_event_read_cpu(struct perf_event *event, int event_cpu)
+ {
+- int event_cpu = event->oncpu;
+ u16 local_pkg, event_pkg;
+
+ if (event->group_caps & PERF_EV_CAP_READ_ACTIVE_PKG) {
+- event_pkg = topology_physical_package_id(event_cpu);
+- local_pkg = topology_physical_package_id(local_cpu);
++ int local_cpu = smp_processor_id();
++
++ event_pkg = topology_physical_package_id(event_cpu);
++ local_pkg = topology_physical_package_id(local_cpu);
+
+ if (event_pkg == local_pkg)
+ return local_cpu;
+@@ -3598,7 +3599,7 @@ u64 perf_event_read_local(struct perf_event *event)
+
+ static int perf_event_read(struct perf_event *event, bool group)
+ {
+- int ret = 0, cpu_to_read, local_cpu;
++ int event_cpu, ret = 0;
+
+ /*
+ * If event is enabled and currently active on a CPU, update the
+@@ -3611,21 +3612,25 @@ static int perf_event_read(struct perf_event *event, bool group)
+ .ret = 0,
+ };
+
+- local_cpu = get_cpu();
+- cpu_to_read = find_cpu_to_read(event, local_cpu);
+- put_cpu();
++ event_cpu = READ_ONCE(event->oncpu);
++ if ((unsigned)event_cpu >= nr_cpu_ids)
++ return 0;
++
++ preempt_disable();
++ event_cpu = __perf_event_read_cpu(event, event_cpu);
+
+ /*
+ * Purposely ignore the smp_call_function_single() return
+ * value.
+ *
+- * If event->oncpu isn't a valid CPU it means the event got
++ * If event_cpu isn't a valid CPU it means the event got
+ * scheduled out and that will have updated the event count.
+ *
+ * Therefore, either way, we'll have an up-to-date event count
+ * after this.
+ */
+- (void)smp_call_function_single(cpu_to_read, __perf_event_read, &data, 1);
++ (void)smp_call_function_single(event_cpu, __perf_event_read, &data, 1);
++ preempt_enable();
+ ret = data.ret;
+ } else if (event->state == PERF_EVENT_STATE_INACTIVE) {
+ struct perf_event_context *ctx = event->ctx;
+diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
+index b6e4c16..9c15a91 100644
+--- a/kernel/stacktrace.c
++++ b/kernel/stacktrace.c
+@@ -18,10 +18,8 @@ void print_stack_trace(struct stack_trace *trace, int spaces)
+ if (WARN_ON(!trace->entries))
+ return;
+
+- for (i = 0; i < trace->nr_entries; i++) {
+- printk("%*c", 1 + spaces, ' ');
+- print_ip_sym(trace->entries[i]);
+- }
++ for (i = 0; i < trace->nr_entries; i++)
++ printk("%*c%pS\n", 1 + spaces, ' ', (void *)trace->entries[i]);
+ }
+ EXPORT_SYMBOL_GPL(print_stack_trace);
+
+@@ -29,7 +27,6 @@ int snprint_stack_trace(char *buf, size_t size,
+ struct stack_trace *trace, int spaces)
+ {
+ int i;
+- unsigned long ip;
+ int generated;
+ int total = 0;
+
+@@ -37,9 +34,8 @@ int snprint_stack_trace(char *buf, size_t size,
+ return 0;
+
+ for (i = 0; i < trace->nr_entries; i++) {
+- ip = trace->entries[i];
+- generated = snprintf(buf, size, "%*c[<%p>] %pS\n",
+- 1 + spaces, ' ', (void *) ip, (void *) ip);
++ generated = snprintf(buf, size, "%*c%pS\n", 1 + spaces, ' ',
++ (void *)trace->entries[i]);
+
+ total += generated;
+
+diff --git a/mm/slub.c b/mm/slub.c
+index 2b3e740..7aa0e97 100644
+--- a/mm/slub.c
++++ b/mm/slub.c
+@@ -1419,6 +1419,10 @@ static int init_cache_random_seq(struct kmem_cache *s)
+ int err;
+ unsigned long i, count = oo_objects(s->oo);
+
++ /* Bailout if already initialised */
++ if (s->random_seq)
++ return 0;
++
+ err = cache_random_seq_create(s, count, GFP_KERNEL);
+ if (err) {
+ pr_err("SLUB: Unable to initialize free list for %s\n",
+diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c
+index 42120d9..50e1b7f 100644
+--- a/net/mac80211/mesh.c
++++ b/net/mac80211/mesh.c
+@@ -339,7 +339,7 @@ int mesh_add_vendor_ies(struct ieee80211_sub_if_data *sdata,
+ /* fast-forward to vendor IEs */
+ offset = ieee80211_ie_split_vendor(ifmsh->ie, ifmsh->ie_len, 0);
+
+- if (offset) {
++ if (offset < ifmsh->ie_len) {
+ len = ifmsh->ie_len - offset;
+ data = ifmsh->ie + offset;
+ if (skb_tailroom(skb) < len)
+diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
+index 1b3c18c..cd7a419 100644
+--- a/net/wireless/nl80211.c
++++ b/net/wireless/nl80211.c
+@@ -5874,6 +5874,7 @@ do { \
+ break;
+ }
+ cfg->ht_opmode = ht_opmode;
++ mask |= (1 << (NL80211_MESHCONF_HT_OPMODE - 1));
+ }
+ FILL_IN_MESH_PARAM_IF_SET(tb, cfg, dot11MeshHWMPactivePathToRootTimeout,
+ 1, 65535, mask,
+diff --git a/security/selinux/hooks.c b/security/selinux/hooks.c
+index 09fd610..c2da45a 100644
+--- a/security/selinux/hooks.c
++++ b/security/selinux/hooks.c
+@@ -5858,7 +5858,7 @@ static int selinux_setprocattr(struct task_struct *p,
+ return error;
+
+ /* Obtain a SID for the context, if one was specified. */
+- if (size && str[1] && str[1] != '\n') {
++ if (size && str[0] && str[0] != '\n') {
+ if (str[size-1] == '\n') {
+ str[size-1] = 0;
+ size--;
+diff --git a/sound/core/seq/seq_memory.c b/sound/core/seq/seq_memory.c
+index c850345..dfa5156 100644
+--- a/sound/core/seq/seq_memory.c
++++ b/sound/core/seq/seq_memory.c
+@@ -419,7 +419,6 @@ int snd_seq_pool_done(struct snd_seq_pool *pool)
+ {
+ unsigned long flags;
+ struct snd_seq_event_cell *ptr;
+- int max_count = 5 * HZ;
+
+ if (snd_BUG_ON(!pool))
+ return -EINVAL;
+@@ -432,14 +431,8 @@ int snd_seq_pool_done(struct snd_seq_pool *pool)
+ if (waitqueue_active(&pool->output_sleep))
+ wake_up(&pool->output_sleep);
+
+- while (atomic_read(&pool->counter) > 0) {
+- if (max_count == 0) {
+- pr_warn("ALSA: snd_seq_pool_done timeout: %d cells remain\n", atomic_read(&pool->counter));
+- break;
+- }
++ while (atomic_read(&pool->counter) > 0)
+ schedule_timeout_uninterruptible(1);
+- max_count--;
+- }
+
+ /* release all resources */
+ spin_lock_irqsave(&pool->lock, flags);
+diff --git a/sound/core/seq/seq_queue.c b/sound/core/seq/seq_queue.c
+index 0bec02e..450c518 100644
+--- a/sound/core/seq/seq_queue.c
++++ b/sound/core/seq/seq_queue.c
+@@ -181,6 +181,8 @@ void __exit snd_seq_queues_delete(void)
+ }
+ }
+
++static void queue_use(struct snd_seq_queue *queue, int client, int use);
++
+ /* allocate a new queue -
+ * return queue index value or negative value for error
+ */
+@@ -192,11 +194,11 @@ int snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
+ if (q == NULL)
+ return -ENOMEM;
+ q->info_flags = info_flags;
++ queue_use(q, client, 1);
+ if (queue_list_add(q) < 0) {
+ queue_delete(q);
+ return -ENOMEM;
+ }
+- snd_seq_queue_use(q->queue, client, 1); /* use this queue */
+ return q->queue;
+ }
+
+@@ -502,19 +504,9 @@ int snd_seq_queue_timer_set_tempo(int queueid, int client,
+ return result;
+ }
+
+-
+-/* use or unuse this queue -
+- * if it is the first client, starts the timer.
+- * if it is not longer used by any clients, stop the timer.
+- */
+-int snd_seq_queue_use(int queueid, int client, int use)
++/* use or unuse this queue */
++static void queue_use(struct snd_seq_queue *queue, int client, int use)
+ {
+- struct snd_seq_queue *queue;
+-
+- queue = queueptr(queueid);
+- if (queue == NULL)
+- return -EINVAL;
+- mutex_lock(&queue->timer_mutex);
+ if (use) {
+ if (!test_and_set_bit(client, queue->clients_bitmap))
+ queue->clients++;
+@@ -529,6 +521,21 @@ int snd_seq_queue_use(int queueid, int client, int use)
+ } else {
+ snd_seq_timer_close(queue);
+ }
++}
++
++/* use or unuse this queue -
++ * if it is the first client, starts the timer.
++ * if it is not longer used by any clients, stop the timer.
++ */
++int snd_seq_queue_use(int queueid, int client, int use)
++{
++ struct snd_seq_queue *queue;
++
++ queue = queueptr(queueid);
++ if (queue == NULL)
++ return -EINVAL;
++ mutex_lock(&queue->timer_mutex);
++ queue_use(queue, client, use);
+ mutex_unlock(&queue->timer_mutex);
+ queuefree(queue);
+ return 0;
+diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
+index 56e5204..4bf4833 100644
+--- a/sound/pci/hda/patch_hdmi.c
++++ b/sound/pci/hda/patch_hdmi.c
+@@ -3638,6 +3638,7 @@ HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP", patch_nvhdmi),
+ HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP", patch_nvhdmi),
+ HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP", patch_nvhdmi),
+ HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP", patch_nvhdmi),
++HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP", patch_nvhdmi),
+ HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP", patch_nvhdmi),
+ HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP", patch_nvhdmi),
+ HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI", patch_nvhdmi_2ch),
+diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
+index 90009c0..ab3c280 100644
+--- a/sound/usb/line6/driver.c
++++ b/sound/usb/line6/driver.c
+@@ -754,8 +754,9 @@ int line6_probe(struct usb_interface *interface,
+ goto error;
+ }
+
++ line6_get_interval(line6);
++
+ if (properties->capabilities & LINE6_CAP_CONTROL) {
+- line6_get_interval(line6);
+ ret = line6_init_cap_control(line6);
+ if (ret < 0)
+ goto error;
+diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
+index 9ff0db4..933aeec 100644
+--- a/tools/perf/builtin-diff.c
++++ b/tools/perf/builtin-diff.c
+@@ -1199,7 +1199,7 @@ static int ui_init(void)
+ BUG_ON(1);
+ }
+
+- perf_hpp__register_sort_field(fmt);
++ perf_hpp__prepend_sort_field(fmt);
+ return 0;
+ }
+
+diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
+index 3738839..18cfcdc9 100644
+--- a/tools/perf/ui/hist.c
++++ b/tools/perf/ui/hist.c
+@@ -521,6 +521,12 @@ void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
+ list_add_tail(&format->sort_list, &list->sorts);
+ }
+
++void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
++ struct perf_hpp_fmt *format)
++{
++ list_add(&format->sort_list, &list->sorts);
++}
++
+ void perf_hpp__column_unregister(struct perf_hpp_fmt *format)
+ {
+ list_del(&format->list);
+@@ -560,6 +566,10 @@ void perf_hpp__setup_output_field(struct perf_hpp_list *list)
+ perf_hpp_list__for_each_sort_list(list, fmt) {
+ struct perf_hpp_fmt *pos;
+
++ /* skip sort-only fields ("sort_compute" in perf diff) */
++ if (!fmt->entry && !fmt->color)
++ continue;
++
+ perf_hpp_list__for_each_format(list, pos) {
+ if (fmt_equal(fmt, pos))
+ goto next;
+diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
+index 9928fed..a440a04 100644
+--- a/tools/perf/util/hist.h
++++ b/tools/perf/util/hist.h
+@@ -282,6 +282,8 @@ void perf_hpp_list__column_register(struct perf_hpp_list *list,
+ struct perf_hpp_fmt *format);
+ void perf_hpp_list__register_sort_field(struct perf_hpp_list *list,
+ struct perf_hpp_fmt *format);
++void perf_hpp_list__prepend_sort_field(struct perf_hpp_list *list,
++ struct perf_hpp_fmt *format);
+
+ static inline void perf_hpp__column_register(struct perf_hpp_fmt *format)
+ {
+@@ -293,6 +295,11 @@ static inline void perf_hpp__register_sort_field(struct perf_hpp_fmt *format)
+ perf_hpp_list__register_sort_field(&perf_hpp_list, format);
+ }
+
++static inline void perf_hpp__prepend_sort_field(struct perf_hpp_fmt *format)
++{
++ perf_hpp_list__prepend_sort_field(&perf_hpp_list, format);
++}
++
+ #define perf_hpp_list__for_each_format(_list, format) \
+ list_for_each_entry(format, &(_list)->fields, list)
+