diff --git linux-libre-5.15.15-gnu/Makefile linux-libre-5.15.16-gnu/Makefile
index 3665046d490c..0c2c081d10fc 100644
--- linux-libre-5.15.15-gnu/Makefile
+++ linux-libre-5.15.16-gnu/Makefile
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 15
-SUBLEVEL = 15
+SUBLEVEL = 16
 EXTRAVERSION = -gnu
 NAME = Trick or Treat
 
diff --git linux-libre-5.15.15-gnu/arch/arm/kernel/perf_callchain.c linux-libre-5.15.16-gnu/arch/arm/kernel/perf_callchain.c
index 3b69a76d341e..1626dfc6f6ce 100644
--- linux-libre-5.15.15-gnu/arch/arm/kernel/perf_callchain.c
+++ linux-libre-5.15.16-gnu/arch/arm/kernel/perf_callchain.c
@@ -62,9 +62,10 @@ user_backtrace(struct frame_tail __user *tail,
 void
 perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct frame_tail __user *tail;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -98,9 +99,10 @@ callchain_trace(struct stackframe *fr,
 void
 perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe fr;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -111,18 +113,21 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *re
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return instruction_pointer(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git linux-libre-5.15.15-gnu/arch/arm64/kernel/perf_callchain.c linux-libre-5.15.16-gnu/arch/arm64/kernel/perf_callchain.c
index 4a72c2727309..86d9f2013172 100644
--- linux-libre-5.15.15-gnu/arch/arm64/kernel/perf_callchain.c
+++ linux-libre-5.15.16-gnu/arch/arm64/kernel/perf_callchain.c
@@ -102,7 +102,9 @@ compat_user_backtrace(struct compat_frame_tail __user *tail,
 void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 			 struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -147,9 +149,10 @@ static bool callchain_trace(void *data, unsigned long pc)
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 			   struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe frame;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -160,18 +163,21 @@ void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return instruction_pointer(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git linux-libre-5.15.15-gnu/arch/csky/kernel/perf_callchain.c linux-libre-5.15.16-gnu/arch/csky/kernel/perf_callchain.c
index ab55e98ee8f6..35318a635a5f 100644
--- linux-libre-5.15.15-gnu/arch/csky/kernel/perf_callchain.c
+++ linux-libre-5.15.16-gnu/arch/csky/kernel/perf_callchain.c
@@ -86,10 +86,11 @@ static unsigned long user_backtrace(struct perf_callchain_entry_ctx *entry,
 void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 			 struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	unsigned long fp = 0;
 
 	/* C-SKY does not support virtualization. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
+	if (guest_cbs && guest_cbs->is_in_guest())
 		return;
 
 	fp = regs->regs[4];
@@ -110,10 +111,11 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 			   struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe fr;
 
 	/* C-SKY does not support virtualization. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		pr_warn("C-SKY does not support perf in guest mode!");
 		return;
 	}
diff --git linux-libre-5.15.15-gnu/arch/nds32/kernel/perf_event_cpu.c linux-libre-5.15.16-gnu/arch/nds32/kernel/perf_event_cpu.c
index 0ce6f9f307e6..f38791960781 100644
--- linux-libre-5.15.15-gnu/arch/nds32/kernel/perf_event_cpu.c
+++ linux-libre-5.15.16-gnu/arch/nds32/kernel/perf_event_cpu.c
@@ -1363,6 +1363,7 @@ void
 perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 		    struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	unsigned long fp = 0;
 	unsigned long gp = 0;
 	unsigned long lp = 0;
@@ -1371,7 +1372,7 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 
 	leaf_fp = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -1479,9 +1480,10 @@ void
 perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 		      struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stackframe fr;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* We don't support guest os callchain now */
 		return;
 	}
@@ -1493,20 +1495,23 @@ perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
 	/* However, NDS32 does not support virtualization */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return instruction_pointer(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
 	/* However, NDS32 does not support virtualization */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git linux-libre-5.15.15-gnu/arch/riscv/kernel/perf_callchain.c linux-libre-5.15.16-gnu/arch/riscv/kernel/perf_callchain.c
index 0bb1854dce83..8ecfc4c128bc 100644
--- linux-libre-5.15.15-gnu/arch/riscv/kernel/perf_callchain.c
+++ linux-libre-5.15.16-gnu/arch/riscv/kernel/perf_callchain.c
@@ -56,10 +56,11 @@ static unsigned long user_backtrace(struct perf_callchain_entry_ctx *entry,
 void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 			 struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	unsigned long fp = 0;
 
 	/* RISC-V does not support perf in guest mode. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
+	if (guest_cbs && guest_cbs->is_in_guest())
 		return;
 
 	fp = regs->s0;
@@ -78,8 +79,10 @@ static bool fill_callchain(void *entry, unsigned long pc)
 void perf_callchain_kernel(struct perf_callchain_entry_ctx *entry,
 			   struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
 	/* RISC-V does not support perf in guest mode. */
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		pr_warn("RISC-V does not support perf in guest mode!");
 		return;
 	}
diff --git linux-libre-5.15.15-gnu/arch/s390/kvm/interrupt.c linux-libre-5.15.16-gnu/arch/s390/kvm/interrupt.c
index 2245f4b8d362..8ce03a5ca863 100644
--- linux-libre-5.15.15-gnu/arch/s390/kvm/interrupt.c
+++ linux-libre-5.15.16-gnu/arch/s390/kvm/interrupt.c
@@ -2115,6 +2115,13 @@ int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu)
 	return test_bit(IRQ_PEND_SIGP_STOP, &li->pending_irqs);
 }
 
+int kvm_s390_is_restart_irq_pending(struct kvm_vcpu *vcpu)
+{
+	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
+
+	return test_bit(IRQ_PEND_RESTART, &li->pending_irqs);
+}
+
 void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu)
 {
 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;
diff --git linux-libre-5.15.15-gnu/arch/s390/kvm/kvm-s390.c linux-libre-5.15.16-gnu/arch/s390/kvm/kvm-s390.c
index 1c97493d21e1..24e42bd7d3b7 100644
--- linux-libre-5.15.15-gnu/arch/s390/kvm/kvm-s390.c
+++ linux-libre-5.15.16-gnu/arch/s390/kvm/kvm-s390.c
@@ -4642,10 +4642,15 @@ int kvm_s390_vcpu_stop(struct kvm_vcpu *vcpu)
 		}
 	}
 
-	/* SIGP STOP and SIGP STOP AND STORE STATUS has been fully processed */
+	/*
+	 * Set the VCPU to STOPPED and THEN clear the interrupt flag,
+	 * now that the SIGP STOP and SIGP STOP AND STORE STATUS orders
+	 * have been fully processed. This will ensure that the VCPU
+	 * is kept BUSY if another VCPU is inquiring with SIGP SENSE.
+	 */
+	kvm_s390_set_cpuflags(vcpu, CPUSTAT_STOPPED);
 	kvm_s390_clear_stop_irq(vcpu);
 
-	kvm_s390_set_cpuflags(vcpu, CPUSTAT_STOPPED);
 	__disable_ibs_on_vcpu(vcpu);
 
 	for (i = 0; i < online_vcpus; i++) {
diff --git linux-libre-5.15.15-gnu/arch/s390/kvm/kvm-s390.h linux-libre-5.15.16-gnu/arch/s390/kvm/kvm-s390.h
index 52bc8fbaa60a..1539dd981104 100644
--- linux-libre-5.15.15-gnu/arch/s390/kvm/kvm-s390.h
+++ linux-libre-5.15.16-gnu/arch/s390/kvm/kvm-s390.h
@@ -418,6 +418,7 @@ void kvm_s390_destroy_adapters(struct kvm *kvm);
 int kvm_s390_ext_call_pending(struct kvm_vcpu *vcpu);
 extern struct kvm_device_ops kvm_flic_ops;
 int kvm_s390_is_stop_irq_pending(struct kvm_vcpu *vcpu);
+int kvm_s390_is_restart_irq_pending(struct kvm_vcpu *vcpu);
 void kvm_s390_clear_stop_irq(struct kvm_vcpu *vcpu);
 int kvm_s390_set_irq_state(struct kvm_vcpu *vcpu,
 			   void __user *buf, int len);
diff --git linux-libre-5.15.15-gnu/arch/s390/kvm/sigp.c linux-libre-5.15.16-gnu/arch/s390/kvm/sigp.c
index 683036c1c92a..3dc921e853b6 100644
--- linux-libre-5.15.15-gnu/arch/s390/kvm/sigp.c
+++ linux-libre-5.15.16-gnu/arch/s390/kvm/sigp.c
@@ -288,6 +288,34 @@ static int handle_sigp_dst(struct kvm_vcpu *vcpu, u8 order_code,
 	if (!dst_vcpu)
 		return SIGP_CC_NOT_OPERATIONAL;
 
+	/*
+	 * SIGP RESTART, SIGP STOP, and SIGP STOP AND STORE STATUS orders
+	 * are processed asynchronously. Until the affected VCPU finishes
+	 * its work and calls back into KVM to clear the (RESTART or STOP)
+	 * interrupt, we need to return any new non-reset orders "busy".
+	 *
+	 * This is important because a single VCPU could issue:
+	 *  1) SIGP STOP $DESTINATION
+	 *  2) SIGP SENSE $DESTINATION
+	 *
+	 * If the SIGP SENSE would not be rejected as "busy", it could
+	 * return an incorrect answer as to whether the VCPU is STOPPED
+	 * or OPERATING.
+	 */
+	if (order_code != SIGP_INITIAL_CPU_RESET &&
+	    order_code != SIGP_CPU_RESET) {
+		/*
+		 * Lockless check. Both SIGP STOP and SIGP (RE)START
+		 * properly synchronize everything while processing
+		 * their orders, while the guest cannot observe a
+		 * difference when issuing other orders from two
+		 * different VCPUs.
+		 */
+		if (kvm_s390_is_stop_irq_pending(dst_vcpu) ||
+		    kvm_s390_is_restart_irq_pending(dst_vcpu))
+			return SIGP_CC_BUSY;
+	}
+
 	switch (order_code) {
 	case SIGP_SENSE:
 		vcpu->stat.instruction_sigp_sense++;
diff --git linux-libre-5.15.15-gnu/arch/x86/events/core.c linux-libre-5.15.16-gnu/arch/x86/events/core.c
index 6dfa8ddaa60f..81d5e0a1f48c 100644
--- linux-libre-5.15.15-gnu/arch/x86/events/core.c
+++ linux-libre-5.15.16-gnu/arch/x86/events/core.c
@@ -2762,10 +2762,11 @@ static bool perf_hw_regs(struct pt_regs *regs)
 void
 perf_callchain_kernel(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct unwind_state state;
 	unsigned long addr;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* TODO: We don't support guest os callchain now */
 		return;
 	}
@@ -2865,10 +2866,11 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *ent
 void
 perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	struct stack_frame frame;
 	const struct stack_frame __user *fp;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
+	if (guest_cbs && guest_cbs->is_in_guest()) {
 		/* TODO: We don't support guest os callchain now */
 		return;
 	}
@@ -2945,18 +2947,21 @@ static unsigned long code_segment_base(struct pt_regs *regs)
 
 unsigned long perf_instruction_pointer(struct pt_regs *regs)
 {
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest())
-		return perf_guest_cbs->get_guest_ip();
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
+
+	if (guest_cbs && guest_cbs->is_in_guest())
+		return guest_cbs->get_guest_ip();
 
 	return regs->ip + code_segment_base(regs);
 }
 
 unsigned long perf_misc_flags(struct pt_regs *regs)
 {
+	struct perf_guest_info_callbacks *guest_cbs = perf_get_guest_cbs();
 	int misc = 0;
 
-	if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) {
-		if (perf_guest_cbs->is_user_mode())
+	if (guest_cbs && guest_cbs->is_in_guest()) {
+		if (guest_cbs->is_user_mode())
 			misc |= PERF_RECORD_MISC_GUEST_USER;
 		else
 			misc |= PERF_RECORD_MISC_GUEST_KERNEL;
diff --git linux-libre-5.15.15-gnu/arch/x86/events/intel/core.c linux-libre-5.15.16-gnu/arch/x86/events/intel/core.c
index fc68faa966a8..029f0cfb18b5 100644
--- linux-libre-5.15.15-gnu/arch/x86/events/intel/core.c
+++ linux-libre-5.15.16-gnu/arch/x86/events/intel/core.c
@@ -2788,6 +2788,7 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
 {
 	struct perf_sample_data data;
 	struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events);
+	struct perf_guest_info_callbacks *guest_cbs;
 	int bit;
 	int handled = 0;
 	u64 intel_ctrl = hybrid(cpuc->pmu, intel_ctrl);
@@ -2854,9 +2855,11 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status)
 	 */
 	if (__test_and_clear_bit(GLOBAL_STATUS_TRACE_TOPAPMI_BIT, (unsigned long *)&status)) {
 		handled++;
-		if (unlikely(perf_guest_cbs && perf_guest_cbs->is_in_guest() &&
-			perf_guest_cbs->handle_intel_pt_intr))
-			perf_guest_cbs->handle_intel_pt_intr();
+
+		guest_cbs = perf_get_guest_cbs();
+		if (unlikely(guest_cbs && guest_cbs->is_in_guest() &&
+			     guest_cbs->handle_intel_pt_intr))
+			guest_cbs->handle_intel_pt_intr();
 		else
 			intel_pt_interrupt();
 	}
diff --git linux-libre-5.15.15-gnu/arch/x86/include/asm/kvm_host.h linux-libre-5.15.16-gnu/arch/x86/include/asm/kvm_host.h
index 75e21715ecb4..77ab14bcd477 100644
--- linux-libre-5.15.15-gnu/arch/x86/include/asm/kvm_host.h
+++ linux-libre-5.15.16-gnu/arch/x86/include/asm/kvm_host.h
@@ -1509,6 +1509,7 @@ struct kvm_x86_init_ops {
 	int (*disabled_by_bios)(void);
 	int (*check_processor_compatibility)(void);
 	int (*hardware_setup)(void);
+	bool (*intel_pt_intr_in_guest)(void);
 
 	struct kvm_x86_ops *runtime_ops;
 };
diff --git linux-libre-5.15.15-gnu/arch/x86/kvm/lapic.c linux-libre-5.15.16-gnu/arch/x86/kvm/lapic.c
index 95f5527646e4..d8f9aa2605e6 100644
--- linux-libre-5.15.15-gnu/arch/x86/kvm/lapic.c
+++ linux-libre-5.15.16-gnu/arch/x86/kvm/lapic.c
@@ -676,31 +676,25 @@ static inline bool pv_eoi_enabled(struct kvm_vcpu *vcpu)
 static bool pv_eoi_get_pending(struct kvm_vcpu *vcpu)
 {
 	u8 val;
-	if (pv_eoi_get_user(vcpu, &val) < 0) {
-		printk(KERN_WARNING "Can't read EOI MSR value: 0x%llx\n",
-			   (unsigned long long)vcpu->arch.pv_eoi.msr_val);
+	if (pv_eoi_get_user(vcpu, &val) < 0)
 		return false;
-	}
+
 	return val & KVM_PV_EOI_ENABLED;
 }
 
 static void pv_eoi_set_pending(struct kvm_vcpu *vcpu)
 {
-	if (pv_eoi_put_user(vcpu, KVM_PV_EOI_ENABLED) < 0) {
-		printk(KERN_WARNING "Can't set EOI MSR value: 0x%llx\n",
-			   (unsigned long long)vcpu->arch.pv_eoi.msr_val);
+	if (pv_eoi_put_user(vcpu, KVM_PV_EOI_ENABLED) < 0)
 		return;
-	}
+
 	__set_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention);
 }
 
 static void pv_eoi_clr_pending(struct kvm_vcpu *vcpu)
 {
-	if (pv_eoi_put_user(vcpu, KVM_PV_EOI_DISABLED) < 0) {
-		printk(KERN_WARNING "Can't clear EOI MSR value: 0x%llx\n",
-			   (unsigned long long)vcpu->arch.pv_eoi.msr_val);
+	if (pv_eoi_put_user(vcpu, KVM_PV_EOI_DISABLED) < 0)
 		return;
-	}
+
 	__clear_bit(KVM_APIC_PV_EOI_PENDING, &vcpu->arch.apic_attention);
 }
 
diff --git linux-libre-5.15.15-gnu/arch/x86/kvm/vmx/vmx.c linux-libre-5.15.16-gnu/arch/x86/kvm/vmx/vmx.c
index 7d280e6f5488..2ab0e997e39f 100644
--- linux-libre-5.15.15-gnu/arch/x86/kvm/vmx/vmx.c
+++ linux-libre-5.15.16-gnu/arch/x86/kvm/vmx/vmx.c
@@ -7899,6 +7899,7 @@ static struct kvm_x86_init_ops vmx_init_ops __initdata = {
 	.disabled_by_bios = vmx_disabled_by_bios,
 	.check_processor_compatibility = vmx_check_processor_compat,
 	.hardware_setup = hardware_setup,
+	.intel_pt_intr_in_guest = vmx_pt_mode_is_host_guest,
 
 	.runtime_ops = &vmx_x86_ops,
 };
diff --git linux-libre-5.15.15-gnu/arch/x86/kvm/x86.c linux-libre-5.15.16-gnu/arch/x86/kvm/x86.c
index ccb256c377a6..2b80edffe02c 100644
--- linux-libre-5.15.15-gnu/arch/x86/kvm/x86.c
+++ linux-libre-5.15.16-gnu/arch/x86/kvm/x86.c
@@ -1323,7 +1323,7 @@ static const u32 msrs_to_save_all[] = {
 	MSR_IA32_UMWAIT_CONTROL,
 
 	MSR_ARCH_PERFMON_FIXED_CTR0, MSR_ARCH_PERFMON_FIXED_CTR1,
-	MSR_ARCH_PERFMON_FIXED_CTR0 + 2, MSR_ARCH_PERFMON_FIXED_CTR0 + 3,
+	MSR_ARCH_PERFMON_FIXED_CTR0 + 2,
 	MSR_CORE_PERF_FIXED_CTR_CTRL, MSR_CORE_PERF_GLOBAL_STATUS,
 	MSR_CORE_PERF_GLOBAL_CTRL, MSR_CORE_PERF_GLOBAL_OVF_CTRL,
 	MSR_ARCH_PERFMON_PERFCTR0, MSR_ARCH_PERFMON_PERFCTR1,
@@ -8430,7 +8430,7 @@ static struct perf_guest_info_callbacks kvm_guest_cbs = {
 	.is_in_guest		= kvm_is_in_guest,
 	.is_user_mode		= kvm_is_user_mode,
 	.get_guest_ip		= kvm_get_guest_ip,
-	.handle_intel_pt_intr	= kvm_handle_intel_pt_intr,
+	.handle_intel_pt_intr	= NULL,
 };
 
 #ifdef CONFIG_X86_64
@@ -8551,8 +8551,6 @@ int kvm_arch_init(void *opaque)
 
 	kvm_timer_init();
 
-	perf_register_guest_info_callbacks(&kvm_guest_cbs);
-
 	if (boot_cpu_has(X86_FEATURE_XSAVE)) {
 		host_xcr0 = xgetbv(XCR_XFEATURE_ENABLED_MASK);
 		supported_xcr0 = host_xcr0 & KVM_SUPPORTED_XCR0;
@@ -8586,7 +8584,6 @@ void kvm_arch_exit(void)
 		clear_hv_tscchange_cb();
 #endif
 	kvm_lapic_exit();
-	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);
 
 	if (!boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
 		cpufreq_unregister_notifier(&kvmclock_cpufreq_notifier_block,
@@ -11186,6 +11183,10 @@ int kvm_arch_hardware_setup(void *opaque)
 	memcpy(&kvm_x86_ops, ops->runtime_ops, sizeof(kvm_x86_ops));
 	kvm_ops_static_call_update();
 
+	if (ops->intel_pt_intr_in_guest && ops->intel_pt_intr_in_guest())
+		kvm_guest_cbs.handle_intel_pt_intr = kvm_handle_intel_pt_intr;
+	perf_register_guest_info_callbacks(&kvm_guest_cbs);
+
 	if (!kvm_cpu_cap_has(X86_FEATURE_XSAVES))
 		supported_xss = 0;
 
@@ -11213,6 +11214,9 @@ int kvm_arch_hardware_setup(void *opaque)
 
 void kvm_arch_hardware_unsetup(void)
 {
+	perf_unregister_guest_info_callbacks(&kvm_guest_cbs);
+	kvm_guest_cbs.handle_intel_pt_intr = NULL;
+
 	static_call(kvm_x86_hardware_unsetup)();
 }
 
diff --git linux-libre-5.15.15-gnu/drivers/base/devtmpfs.c linux-libre-5.15.16-gnu/drivers/base/devtmpfs.c
index 8be352ab4ddb..fa13ad49d211 100644
--- linux-libre-5.15.15-gnu/drivers/base/devtmpfs.c
+++ linux-libre-5.15.16-gnu/drivers/base/devtmpfs.c
@@ -59,8 +59,15 @@ static struct dentry *public_dev_mount(struct file_system_type *fs_type, int fla
 		      const char *dev_name, void *data)
 {
 	struct super_block *s = mnt->mnt_sb;
+	int err;
+
 	atomic_inc(&s->s_active);
 	down_write(&s->s_umount);
+	err = reconfigure_single(s, flags, data);
+	if (err < 0) {
+		deactivate_locked_super(s);
+		return ERR_PTR(err);
+	}
 	return dget(s->s_root);
 }
 
diff --git linux-libre-5.15.15-gnu/drivers/firmware/qemu_fw_cfg.c linux-libre-5.15.16-gnu/drivers/firmware/qemu_fw_cfg.c
index 172c751a4f6c..f08e056ed0ae 100644
--- linux-libre-5.15.15-gnu/drivers/firmware/qemu_fw_cfg.c
+++ linux-libre-5.15.16-gnu/drivers/firmware/qemu_fw_cfg.c
@@ -388,9 +388,7 @@ static void fw_cfg_sysfs_cache_cleanup(void)
 	struct fw_cfg_sysfs_entry *entry, *next;
 
 	list_for_each_entry_safe(entry, next, &fw_cfg_entry_cache, list) {
-		/* will end up invoking fw_cfg_sysfs_cache_delist()
-		 * via each object's release() method (i.e. destructor)
-		 */
+		fw_cfg_sysfs_cache_delist(entry);
 		kobject_put(&entry->kobj);
 	}
 }
@@ -448,7 +446,6 @@ static void fw_cfg_sysfs_release_entry(struct kobject *kobj)
 {
 	struct fw_cfg_sysfs_entry *entry = to_entry(kobj);
 
-	fw_cfg_sysfs_cache_delist(entry);
 	kfree(entry);
 }
 
@@ -601,20 +598,18 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
 	/* set file entry information */
 	entry->size = be32_to_cpu(f->size);
 	entry->select = be16_to_cpu(f->select);
-	memcpy(entry->name, f->name, FW_CFG_MAX_FILE_PATH);
+	strscpy(entry->name, f->name, FW_CFG_MAX_FILE_PATH);
 
 	/* register entry under "/sys/firmware/qemu_fw_cfg/by_key/" */
 	err = kobject_init_and_add(&entry->kobj, &fw_cfg_sysfs_entry_ktype,
 				   fw_cfg_sel_ko, "%d", entry->select);
-	if (err) {
-		kobject_put(&entry->kobj);
-		return err;
-	}
+	if (err)
+		goto err_put_entry;
 
 	/* add raw binary content access */
 	err = sysfs_create_bin_file(&entry->kobj, &fw_cfg_sysfs_attr_raw);
 	if (err)
-		goto err_add_raw;
+		goto err_del_entry;
 
 	/* try adding "/sys/firmware/qemu_fw_cfg/by_name/" symlink */
 	fw_cfg_build_symlink(fw_cfg_fname_kset, &entry->kobj, entry->name);
@@ -623,9 +618,10 @@ static int fw_cfg_register_file(const struct fw_cfg_file *f)
 	fw_cfg_sysfs_cache_enlist(entry);
 	return 0;
 
-err_add_raw:
+err_del_entry:
 	kobject_del(&entry->kobj);
-	kfree(entry);
+err_put_entry:
+	kobject_put(&entry->kobj);
 	return err;
 }
 
diff --git linux-libre-5.15.15-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c linux-libre-5.15.16-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index 8d15e67dd2d1..8ca41e47306a 100644
--- linux-libre-5.15.15-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ linux-libre-5.15.16-gnu/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -5604,6 +5604,7 @@ static void update_dsc_caps(struct amdgpu_dm_connector *aconnector,
 							struct dsc_dec_dpcd_caps *dsc_caps)
 {
 	stream->timing.flags.DSC = 0;
+	dsc_caps->is_dsc_supported = false;
 
 	if (aconnector->dc_link && sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT) {
 		dc_dsc_parse_dsc_dpcd(aconnector->dc_link->ctx->dc,
diff --git linux-libre-5.15.15-gnu/drivers/media/usb/uvc/uvc_video.c linux-libre-5.15.16-gnu/drivers/media/usb/uvc/uvc_video.c
index 9f37eaf28ce7..1b4cc934109e 100644
--- linux-libre-5.15.15-gnu/drivers/media/usb/uvc/uvc_video.c
+++ linux-libre-5.15.16-gnu/drivers/media/usb/uvc/uvc_video.c
@@ -1963,6 +1963,10 @@ static int uvc_video_start_transfer(struct uvc_streaming *stream,
 		if (ep == NULL)
 			return -EIO;
 
+		/* Reject broken descriptors. */
+		if (usb_endpoint_maxp(&ep->desc) == 0)
+			return -EIO;
+
 		ret = uvc_init_video_bulk(stream, ep, gfp_flags);
 	}
 
diff --git linux-libre-5.15.15-gnu/drivers/mtd/chips/Kconfig linux-libre-5.15.16-gnu/drivers/mtd/chips/Kconfig
index aef14990e5f7..19726ebd973d 100644
--- linux-libre-5.15.15-gnu/drivers/mtd/chips/Kconfig
+++ linux-libre-5.15.16-gnu/drivers/mtd/chips/Kconfig
@@ -55,12 +55,14 @@ choice
 	  LITTLE_ENDIAN_BYTE, if the bytes are reversed.
 
 config MTD_CFI_NOSWAP
+	depends on !ARCH_IXP4XX || CPU_BIG_ENDIAN
 	bool "NO"
 
 config MTD_CFI_BE_BYTE_SWAP
 	bool "BIG_ENDIAN_BYTE"
 
 config MTD_CFI_LE_BYTE_SWAP
+	depends on !ARCH_IXP4XX
 	bool "LITTLE_ENDIAN_BYTE"
 
 endchoice
diff --git linux-libre-5.15.15-gnu/drivers/mtd/maps/Kconfig linux-libre-5.15.16-gnu/drivers/mtd/maps/Kconfig
index aaa164b977fe..4945caa88345 100644
--- linux-libre-5.15.15-gnu/drivers/mtd/maps/Kconfig
+++ linux-libre-5.15.16-gnu/drivers/mtd/maps/Kconfig
@@ -302,7 +302,7 @@ config MTD_DC21285
 
 config MTD_IXP4XX
 	tristate "CFI Flash device mapped on Intel IXP4xx based systems"
-	depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX
+	depends on MTD_CFI && MTD_COMPLEX_MAPPINGS && ARCH_IXP4XX && MTD_CFI_ADV_OPTIONS
 	help
 	  This enables MTD access to flash devices on platforms based
 	  on Intel's IXP4xx family of network processors such as the
diff --git linux-libre-5.15.15-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c linux-libre-5.15.16-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
index 6312fddd9c00..eaba66113328 100644
--- linux-libre-5.15.15-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
+++ linux-libre-5.15.16-gnu/drivers/net/wireless/realtek/rtlwifi/rtl8192cu/hw.c
@@ -1000,6 +1000,7 @@ int rtl92cu_hw_init(struct ieee80211_hw *hw)
 	_initpabias(hw);
 	rtl92c_dm_init(hw);
 exit:
+	local_irq_disable();
 	local_irq_restore(flags);
 	return err;
 }
diff --git linux-libre-5.15.15-gnu/drivers/remoteproc/qcom_pil_info.c linux-libre-5.15.16-gnu/drivers/remoteproc/qcom_pil_info.c
index 7c007dd7b200..aca21560e20b 100644
--- linux-libre-5.15.15-gnu/drivers/remoteproc/qcom_pil_info.c
+++ linux-libre-5.15.16-gnu/drivers/remoteproc/qcom_pil_info.c
@@ -104,7 +104,7 @@ int qcom_pil_info_store(const char *image, phys_addr_t base, size_t size)
 	return -ENOMEM;
 
 found_unused:
-	memcpy_toio(entry, image, PIL_RELOC_NAME_LEN);
+	memcpy_toio(entry, image, strnlen(image, PIL_RELOC_NAME_LEN));
 found_existing:
 	/* Use two writel() as base is only aligned to 4 bytes on odd entries */
 	writel(base, entry + PIL_RELOC_NAME_LEN);
diff --git linux-libre-5.15.15-gnu/drivers/remoteproc/qcom_q6v5_pas.c linux-libre-5.15.16-gnu/drivers/remoteproc/qcom_q6v5_pas.c
index 4f5c108defeb..48889567bec2 100644
--- linux-libre-5.15.15-gnu/drivers/remoteproc/qcom_q6v5_pas.c
+++ linux-libre-5.15.16-gnu/drivers/remoteproc/qcom_q6v5_pas.c
@@ -661,6 +661,7 @@ static const struct adsp_data sm8350_cdsp_resource = {
 	},
 	.proxy_pd_names = (char*[]){
 		"cx",
+		"mxc",
 		NULL
 	},
 	.ssr_name = "cdsp",
diff --git linux-libre-5.15.15-gnu/drivers/video/fbdev/vga16fb.c linux-libre-5.15.16-gnu/drivers/video/fbdev/vga16fb.c
index e2757ff1c23d..96e312a3eac7 100644
--- linux-libre-5.15.15-gnu/drivers/video/fbdev/vga16fb.c
+++ linux-libre-5.15.16-gnu/drivers/video/fbdev/vga16fb.c
@@ -184,6 +184,25 @@ static inline void setindex(int index)
 	vga_io_w(VGA_GFX_I, index);
 }
 
+/* Check if the video mode is supported by the driver */
+static inline int check_mode_supported(void)
+{
+	/* non-x86 architectures treat orig_video_isVGA as a boolean flag */
+#if defined(CONFIG_X86)
+	/* only EGA and VGA in 16 color graphic mode are supported */
+	if (screen_info.orig_video_isVGA != VIDEO_TYPE_EGAC &&
+	    screen_info.orig_video_isVGA != VIDEO_TYPE_VGAC)
+		return -ENODEV;
+
+	if (screen_info.orig_video_mode != 0x0D &&	/* 320x200/4 (EGA) */
+	    screen_info.orig_video_mode != 0x0E &&	/* 640x200/4 (EGA) */
+	    screen_info.orig_video_mode != 0x10 &&	/* 640x350/4 (EGA) */
+	    screen_info.orig_video_mode != 0x12)	/* 640x480/4 (VGA) */
+		return -ENODEV;
+#endif
+	return 0;
+}
+
 static void vga16fb_pan_var(struct fb_info *info, 
 			    struct fb_var_screeninfo *var)
 {
@@ -1422,6 +1441,11 @@ static int __init vga16fb_init(void)
 
 	vga16fb_setup(option);
 #endif
+
+	ret = check_mode_supported();
+	if (ret)
+		return ret;
+
 	ret = platform_driver_register(&vga16fb_driver);
 
 	if (!ret) {
diff --git linux-libre-5.15.15-gnu/fs/9p/vfs_inode_dotl.c linux-libre-5.15.16-gnu/fs/9p/vfs_inode_dotl.c
index 01b9e1281a29..a61df2e0ae52 100644
--- linux-libre-5.15.15-gnu/fs/9p/vfs_inode_dotl.c
+++ linux-libre-5.15.16-gnu/fs/9p/vfs_inode_dotl.c
@@ -553,7 +553,10 @@ int v9fs_vfs_setattr_dotl(struct user_namespace *mnt_userns,
 {
 	int retval, use_dentry = 0;
 	struct p9_fid *fid = NULL;
-	struct p9_iattr_dotl p9attr;
+	struct p9_iattr_dotl p9attr = {
+		.uid = INVALID_UID,
+		.gid = INVALID_GID,
+	};
 	struct inode *inode = d_inode(dentry);
 
 	p9_debug(P9_DEBUG_VFS, "\n");
@@ -563,14 +566,22 @@ int v9fs_vfs_setattr_dotl(struct user_namespace *mnt_userns,
 		return retval;
 
 	p9attr.valid = v9fs_mapped_iattr_valid(iattr->ia_valid);
-	p9attr.mode = iattr->ia_mode;
-	p9attr.uid = iattr->ia_uid;
-	p9attr.gid = iattr->ia_gid;
-	p9attr.size = iattr->ia_size;
-	p9attr.atime_sec = iattr->ia_atime.tv_sec;
-	p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
-	p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
-	p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+	if (iattr->ia_valid & ATTR_MODE)
+		p9attr.mode = iattr->ia_mode;
+	if (iattr->ia_valid & ATTR_UID)
+		p9attr.uid = iattr->ia_uid;
+	if (iattr->ia_valid & ATTR_GID)
+		p9attr.gid = iattr->ia_gid;
+	if (iattr->ia_valid & ATTR_SIZE)
+		p9attr.size = iattr->ia_size;
+	if (iattr->ia_valid & ATTR_ATIME_SET) {
+		p9attr.atime_sec = iattr->ia_atime.tv_sec;
+		p9attr.atime_nsec = iattr->ia_atime.tv_nsec;
+	}
+	if (iattr->ia_valid & ATTR_MTIME_SET) {
+		p9attr.mtime_sec = iattr->ia_mtime.tv_sec;
+		p9attr.mtime_nsec = iattr->ia_mtime.tv_nsec;
+	}
 
 	if (iattr->ia_valid & ATTR_FILE) {
 		fid = iattr->ia_file->private_data;
diff --git linux-libre-5.15.15-gnu/fs/fs_context.c linux-libre-5.15.16-gnu/fs/fs_context.c
index b7e43a780a62..24ce12f0db32 100644
--- linux-libre-5.15.15-gnu/fs/fs_context.c
+++ linux-libre-5.15.16-gnu/fs/fs_context.c
@@ -548,7 +548,7 @@ static int legacy_parse_param(struct fs_context *fc, struct fs_parameter *param)
 			      param->key);
 	}
 
-	if (len > PAGE_SIZE - 2 - size)
+	if (size + len + 2 > PAGE_SIZE)
 		return invalf(fc, "VFS: Legacy: Cumulative options too large");
 	if (strchr(param->key, ',') ||
 	    (param->type == fs_value_is_string &&
diff --git linux-libre-5.15.15-gnu/fs/orangefs/orangefs-bufmap.c linux-libre-5.15.16-gnu/fs/orangefs/orangefs-bufmap.c
index 538e839590ef..b501dc07f922 100644
--- linux-libre-5.15.15-gnu/fs/orangefs/orangefs-bufmap.c
+++ linux-libre-5.15.16-gnu/fs/orangefs/orangefs-bufmap.c
@@ -176,7 +176,7 @@ orangefs_bufmap_free(struct orangefs_bufmap *bufmap)
 {
 	kfree(bufmap->page_array);
 	kfree(bufmap->desc_array);
-	kfree(bufmap->buffer_index_array);
+	bitmap_free(bufmap->buffer_index_array);
 	kfree(bufmap);
 }
 
@@ -226,8 +226,7 @@ orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
 	bufmap->desc_size = user_desc->size;
 	bufmap->desc_shift = ilog2(bufmap->desc_size);
 
-	bufmap->buffer_index_array =
-		kzalloc(DIV_ROUND_UP(bufmap->desc_count, BITS_PER_LONG), GFP_KERNEL);
+	bufmap->buffer_index_array = bitmap_zalloc(bufmap->desc_count, GFP_KERNEL);
 	if (!bufmap->buffer_index_array)
 		goto out_free_bufmap;
 
@@ -250,7 +249,7 @@ orangefs_bufmap_alloc(struct ORANGEFS_dev_map_desc *user_desc)
 out_free_desc_array:
 	kfree(bufmap->desc_array);
 out_free_index_array:
-	kfree(bufmap->buffer_index_array);
+	bitmap_free(bufmap->buffer_index_array);
 out_free_bufmap:
 	kfree(bufmap);
 out:
diff --git linux-libre-5.15.15-gnu/fs/super.c linux-libre-5.15.16-gnu/fs/super.c
index bcef3a6f4c4b..a1f82dfd1b39 100644
--- linux-libre-5.15.15-gnu/fs/super.c
+++ linux-libre-5.15.16-gnu/fs/super.c
@@ -1421,8 +1421,8 @@ struct dentry *mount_nodev(struct file_system_type *fs_type,
 }
 EXPORT_SYMBOL(mount_nodev);
 
-static int reconfigure_single(struct super_block *s,
-			      int flags, void *data)
+int reconfigure_single(struct super_block *s,
+		       int flags, void *data)
 {
 	struct fs_context *fc;
 	int ret;
diff --git linux-libre-5.15.15-gnu/include/linux/fs_context.h linux-libre-5.15.16-gnu/include/linux/fs_context.h
index 6b54982fc5f3..13fa6f3df8e4 100644
--- linux-libre-5.15.15-gnu/include/linux/fs_context.h
+++ linux-libre-5.15.16-gnu/include/linux/fs_context.h
@@ -142,6 +142,8 @@ extern void put_fs_context(struct fs_context *fc);
 extern int vfs_parse_fs_param_source(struct fs_context *fc,
 				     struct fs_parameter *param);
 extern void fc_drop_locked(struct fs_context *fc);
+int reconfigure_single(struct super_block *s,
+		       int flags, void *data);
 
 /*
  * sget() wrappers to be called from the ->get_tree() op.
diff --git linux-libre-5.15.15-gnu/include/linux/perf_event.h linux-libre-5.15.16-gnu/include/linux/perf_event.h
index 9b60bb89d86a..ae1f0c8b7562 100644
--- linux-libre-5.15.15-gnu/include/linux/perf_event.h
+++ linux-libre-5.15.16-gnu/include/linux/perf_event.h
@@ -1239,7 +1239,18 @@ extern void perf_event_bpf_event(struct bpf_prog *prog,
 				 enum perf_bpf_event_type type,
 				 u16 flags);
 
-extern struct perf_guest_info_callbacks *perf_guest_cbs;
+extern struct perf_guest_info_callbacks __rcu *perf_guest_cbs;
+static inline struct perf_guest_info_callbacks *perf_get_guest_cbs(void)
+{
+	/*
+	 * Callbacks are RCU-protected and must be READ_ONCE to avoid reloading
+	 * the callbacks between a !NULL check and dereferences, to ensure
+	 * pending stores/changes to the callback pointers are visible before a
+	 * non-NULL perf_guest_cbs is visible to readers, and to prevent a
+	 * module from unloading callbacks while readers are active.
+	 */
+	return rcu_dereference(perf_guest_cbs);
+}
 extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
 extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
 
diff --git linux-libre-5.15.15-gnu/kernel/events/core.c linux-libre-5.15.16-gnu/kernel/events/core.c
index 2931faf92a76..0fe6a65bbd58 100644
--- linux-libre-5.15.15-gnu/kernel/events/core.c
+++ linux-libre-5.15.16-gnu/kernel/events/core.c
@@ -6526,18 +6526,25 @@ static void perf_pending_event(struct irq_work *entry)
  * Later on, we might change it to a list if there is
  * another virtualization implementation supporting the callbacks.
  */
-struct perf_guest_info_callbacks *perf_guest_cbs;
+struct perf_guest_info_callbacks __rcu *perf_guest_cbs;
 
 int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)
 {
-	perf_guest_cbs = cbs;
+	if (WARN_ON_ONCE(rcu_access_pointer(perf_guest_cbs)))
+		return -EBUSY;
+
+	rcu_assign_pointer(perf_guest_cbs, cbs);
 	return 0;
 }
 EXPORT_SYMBOL_GPL(perf_register_guest_info_callbacks);
 
 int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *cbs)
 {
-	perf_guest_cbs = NULL;
+	if (WARN_ON_ONCE(rcu_access_pointer(perf_guest_cbs) != cbs))
+		return -EINVAL;
+
+	rcu_assign_pointer(perf_guest_cbs, NULL);
+	synchronize_rcu();
 	return 0;
 }
 EXPORT_SYMBOL_GPL(perf_unregister_guest_info_callbacks);
diff --git linux-libre-5.15.15-gnu/sound/pci/hda/hda_tegra.c linux-libre-5.15.16-gnu/sound/pci/hda/hda_tegra.c
index ea700395bef4..773f4903550a 100644
--- linux-libre-5.15.15-gnu/sound/pci/hda/hda_tegra.c
+++ linux-libre-5.15.16-gnu/sound/pci/hda/hda_tegra.c
@@ -68,14 +68,20 @@
  */
 #define TEGRA194_NUM_SDO_LINES	  4
 
+struct hda_tegra_soc {
+	bool has_hda2codec_2x_reset;
+};
+
 struct hda_tegra {
 	struct azx chip;
 	struct device *dev;
-	struct reset_control *reset;
+	struct reset_control_bulk_data resets[3];
 	struct clk_bulk_data clocks[3];
+	unsigned int nresets;
 	unsigned int nclocks;
 	void __iomem *regs;
 	struct work_struct probe_work;
+	const struct hda_tegra_soc *soc;
 };
 
 #ifdef CONFIG_PM
@@ -170,7 +176,7 @@ static int __maybe_unused hda_tegra_runtime_resume(struct device *dev)
 	int rc;
 
 	if (!chip->running) {
-		rc = reset_control_assert(hda->reset);
+		rc = reset_control_bulk_assert(hda->nresets, hda->resets);
 		if (rc)
 			return rc;
 	}
@@ -187,7 +193,7 @@ static int __maybe_unused hda_tegra_runtime_resume(struct device *dev)
 	} else {
 		usleep_range(10, 100);
 
-		rc = reset_control_deassert(hda->reset);
+		rc = reset_control_bulk_deassert(hda->nresets, hda->resets);
 		if (rc)
 			return rc;
 	}
@@ -427,9 +433,17 @@ static int hda_tegra_create(struct snd_card *card,
 	return 0;
 }
 
+static const struct hda_tegra_soc tegra30_data = {
+	.has_hda2codec_2x_reset = true,
+};
+
+static const struct hda_tegra_soc tegra194_data = {
+	.has_hda2codec_2x_reset = false,
+};
+
 static const struct of_device_id hda_tegra_match[] = {
-	{ .compatible = "nvidia,tegra30-hda" },
-	{ .compatible = "nvidia,tegra194-hda" },
+	{ .compatible = "nvidia,tegra30-hda", .data = &tegra30_data },
+	{ .compatible = "nvidia,tegra194-hda", .data = &tegra194_data },
 	{},
 };
 MODULE_DEVICE_TABLE(of, hda_tegra_match);
@@ -449,6 +463,8 @@ static int hda_tegra_probe(struct platform_device *pdev)
 	hda->dev = &pdev->dev;
 	chip = &hda->chip;
 
+	hda->soc = of_device_get_match_data(&pdev->dev);
+
 	err = snd_card_new(&pdev->dev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1,
 			   THIS_MODULE, 0, &card);
 	if (err < 0) {
@@ -456,11 +472,20 @@ static int hda_tegra_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	hda->reset = devm_reset_control_array_get_exclusive(&pdev->dev);
-	if (IS_ERR(hda->reset)) {
-		err = PTR_ERR(hda->reset);
+	hda->resets[hda->nresets++].id = "hda";
+	hda->resets[hda->nresets++].id = "hda2hdmi";
+	/*
+	 * "hda2codec_2x" reset is not present on Tegra194. Though DT would
+	 * be updated to reflect this, but to have backward compatibility
+	 * below is necessary.
+	 */
+	if (hda->soc->has_hda2codec_2x_reset)
+		hda->resets[hda->nresets++].id = "hda2codec_2x";
+
+	err = devm_reset_control_bulk_get_exclusive(&pdev->dev, hda->nresets,
+						    hda->resets);
+	if (err)
 		goto out_free;
-	}
 
 	hda->clocks[hda->nclocks++].id = "hda";
 	hda->clocks[hda->nclocks++].id = "hda2hdmi";
diff --git linux-libre-5.15.15-gnu/sound/pci/hda/patch_realtek.c linux-libre-5.15.16-gnu/sound/pci/hda/patch_realtek.c
index 28255e752c4a..fa80a79e9f96 100644
--- linux-libre-5.15.15-gnu/sound/pci/hda/patch_realtek.c
+++ linux-libre-5.15.16-gnu/sound/pci/hda/patch_realtek.c
@@ -1924,6 +1924,7 @@ enum {
 	ALC887_FIXUP_ASUS_BASS,
 	ALC887_FIXUP_BASS_CHMAP,
 	ALC1220_FIXUP_GB_DUAL_CODECS,
+	ALC1220_FIXUP_GB_X570,
 	ALC1220_FIXUP_CLEVO_P950,
 	ALC1220_FIXUP_CLEVO_PB51ED,
 	ALC1220_FIXUP_CLEVO_PB51ED_PINS,
@@ -2113,6 +2114,29 @@ static void alc1220_fixup_gb_dual_codecs(struct hda_codec *codec,
 	}
 }
 
+static void alc1220_fixup_gb_x570(struct hda_codec *codec,
+				     const struct hda_fixup *fix,
+				     int action)
+{
+	static const hda_nid_t conn1[] = { 0x0c };
+	static const struct coef_fw gb_x570_coefs[] = {
+		WRITE_COEF(0x1a, 0x01c1),
+		WRITE_COEF(0x1b, 0x0202),
+		WRITE_COEF(0x43, 0x3005),
+		{}
+	};
+
+	switch (action) {
+	case HDA_FIXUP_ACT_PRE_PROBE:
+		snd_hda_override_conn_list(codec, 0x14, ARRAY_SIZE(conn1), conn1);
+		snd_hda_override_conn_list(codec, 0x1b, ARRAY_SIZE(conn1), conn1);
+		break;
+	case HDA_FIXUP_ACT_INIT:
+		alc_process_coef_fw(codec, gb_x570_coefs);
+		break;
+	}
+}
+
 static void alc1220_fixup_clevo_p950(struct hda_codec *codec,
 				     const struct hda_fixup *fix,
 				     int action)
@@ -2415,6 +2439,10 @@ static const struct hda_fixup alc882_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc1220_fixup_gb_dual_codecs,
 	},
+	[ALC1220_FIXUP_GB_X570] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc1220_fixup_gb_x570,
+	},
 	[ALC1220_FIXUP_CLEVO_P950] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = alc1220_fixup_clevo_p950,
@@ -2517,7 +2545,7 @@ static const struct snd_pci_quirk alc882_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x13fe, 0x1009, "Advantech MIT-W101", ALC886_FIXUP_EAPD),
 	SND_PCI_QUIRK(0x1458, 0xa002, "Gigabyte EP45-DS3/Z87X-UD3H", ALC889_FIXUP_FRONT_HP_NO_PRESENCE),
 	SND_PCI_QUIRK(0x1458, 0xa0b8, "Gigabyte AZ370-Gaming", ALC1220_FIXUP_GB_DUAL_CODECS),
-	SND_PCI_QUIRK(0x1458, 0xa0cd, "Gigabyte X570 Aorus Master", ALC1220_FIXUP_CLEVO_P950),
+	SND_PCI_QUIRK(0x1458, 0xa0cd, "Gigabyte X570 Aorus Master", ALC1220_FIXUP_GB_X570),
 	SND_PCI_QUIRK(0x1458, 0xa0ce, "Gigabyte X570 Aorus Xtreme", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x11f7, "MSI-GE63", ALC1220_FIXUP_CLEVO_P950),
 	SND_PCI_QUIRK(0x1462, 0x1228, "MSI-GP63", ALC1220_FIXUP_CLEVO_P950),
@@ -6784,6 +6812,8 @@ enum {
 	ALC256_FIXUP_SYSTEM76_MIC_NO_PRESENCE,
 	ALC233_FIXUP_NO_AUDIO_JACK,
 	ALC256_FIXUP_MIC_NO_PRESENCE_AND_RESUME,
+	ALC285_FIXUP_LEGION_Y9000X_SPEAKERS,
+	ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE,
 };
 
 static const struct hda_fixup alc269_fixups[] = {
@@ -8380,6 +8410,18 @@ static const struct hda_fixup alc269_fixups[] = {
 		.chained = true,
 		.chain_id = ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF,
 	},
+	[ALC285_FIXUP_LEGION_Y9000X_SPEAKERS] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc285_fixup_ideapad_s740_coef,
+		.chained = true,
+		.chain_id = ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE,
+	},
+	[ALC285_FIXUP_LEGION_Y9000X_AUTOMUTE] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = alc287_fixup_legion_15imhg05_speakers,
+		.chained = true,
+		.chain_id = ALC269_FIXUP_THINKPAD_ACPI,
+	},
 	[ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS] = {
 		.type = HDA_FIXUP_VERBS,
 		//.v.verbs = legion_15imhg05_coefs,
@@ -8730,6 +8772,7 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x103c, 0x8896, "HP EliteBook 855 G8 Notebook PC", ALC285_FIXUP_HP_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x8898, "HP EliteBook 845 G8 Notebook PC", ALC285_FIXUP_HP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x103c, 0x88d0, "HP Pavilion 15-eh1xxx (mainboard 88D0)", ALC287_FIXUP_HP_GPIO_LED),
+	SND_PCI_QUIRK(0x103c, 0x89c3, "HP", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x89ca, "HP", ALC236_FIXUP_HP_MUTE_LED_MICMUTE_VREF),
 	SND_PCI_QUIRK(0x1043, 0x103e, "ASUS X540SA", ALC256_FIXUP_ASUS_MIC),
 	SND_PCI_QUIRK(0x1043, 0x103f, "ASUS TX300", ALC282_FIXUP_ASUS_TX300),
@@ -8921,13 +8964,16 @@ static const struct snd_pci_quirk alc269_fixup_tbl[] = {
 	SND_PCI_QUIRK(0x17aa, 0x3176, "ThinkCentre Station", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x3178, "ThinkCentre Station", ALC283_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x31af, "ThinkCentre Station", ALC623_FIXUP_LENOVO_THINKSTATION_P340),
+	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3818, "Lenovo C940", ALC298_FIXUP_LENOVO_SPK_VOLUME),
+	SND_PCI_QUIRK(0x17aa, 0x3819, "Lenovo 13s Gen2 ITL", ALC287_FIXUP_13S_GEN2_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x3824, "Legion Y9000X 2020", ALC285_FIXUP_LEGION_Y9000X_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3827, "Ideapad S740", ALC285_FIXUP_IDEAPAD_S740_COEF),
+	SND_PCI_QUIRK(0x17aa, 0x3834, "Lenovo IdeaPad Slim 9i 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3843, "Yoga 9i", ALC287_FIXUP_IDEAPAD_BASS_SPK_AMP),
-	SND_PCI_QUIRK(0x17aa, 0x3813, "Legion 7i 15IMHG05", ALC287_FIXUP_LEGION_15IMHG05_SPEAKERS),
+	SND_PCI_QUIRK(0x17aa, 0x384a, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3852, "Lenovo Yoga 7 14ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3853, "Lenovo Yoga 7 15ITL5", ALC287_FIXUP_YOGA7_14ITL_SPEAKERS),
-	SND_PCI_QUIRK(0x17aa, 0x3819, "Lenovo 13s Gen2 ITL", ALC287_FIXUP_13S_GEN2_SPEAKERS),
 	SND_PCI_QUIRK(0x17aa, 0x3902, "Lenovo E50-80", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
 	SND_PCI_QUIRK(0x17aa, 0x3977, "IdeaPad S210", ALC283_FIXUP_INT_MIC),
 	SND_PCI_QUIRK(0x17aa, 0x3978, "Lenovo B50-70", ALC269_FIXUP_DMIC_THINKPAD_ACPI),
diff --git linux-libre-5.15.15-gnu/tools/perf/ui/browsers/annotate.c linux-libre-5.15.16-gnu/tools/perf/ui/browsers/annotate.c
index e81c2493efdf..44ba900828f6 100644
--- linux-libre-5.15.15-gnu/tools/perf/ui/browsers/annotate.c
+++ linux-libre-5.15.16-gnu/tools/perf/ui/browsers/annotate.c
@@ -966,6 +966,7 @@ int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 		.opts = opts,
 	};
 	int ret = -1, err;
+	int not_annotated = list_empty(&notes->src->source);
 
 	if (sym == NULL)
 		return -1;
@@ -973,13 +974,15 @@ int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 	if (ms->map->dso->annotate_warned)
 		return -1;
 
-	err = symbol__annotate2(ms, evsel, opts, &browser.arch);
-	if (err) {
-		char msg[BUFSIZ];
-		ms->map->dso->annotate_warned = true;
-		symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
-		ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
-		goto out_free_offsets;
+	if (not_annotated) {
+		err = symbol__annotate2(ms, evsel, opts, &browser.arch);
+		if (err) {
+			char msg[BUFSIZ];
+			ms->map->dso->annotate_warned = true;
+			symbol__strerror_disassemble(ms, err, msg, sizeof(msg));
+			ui__error("Couldn't annotate %s:\n%s", sym->name, msg);
+			goto out_free_offsets;
+		}
 	}
 
 	ui_helpline__push("Press ESC to exit");
@@ -994,9 +997,11 @@ int symbol__tui_annotate(struct map_symbol *ms, struct evsel *evsel,
 
 	ret = annotate_browser__run(&browser, evsel, hbt);
 
-	annotated_source__purge(notes->src);
+	if(not_annotated)
+		annotated_source__purge(notes->src);
 
 out_free_offsets:
-	zfree(&notes->offsets);
+	if(not_annotated)
+		zfree(&notes->offsets);
 	return ret;
 }
