Merge 6.1.114 into android14-6.1-lts

Changes in 6.1.114 btrfs: fix uninitialized pointer free in add_inode_ref() btrfs: fix uninitialized pointer free on read_alloc_one_name() error ksmbd: fix user-after-free from session log off ALSA: hda/conexant - Fix audio routing for HP EliteOne 1000 G2 mptcp: pm: fix UaF read in mptcp_pm_nl_rm_addr_or_subflow udf: New directory iteration code udf: Convert udf_expand_dir_adinicb() to new directory iteration udf: Move udf_expand_dir_adinicb() to its callsite udf: Implement searching for directory entry using new iteration code udf: Provide function to mark entry as deleted using new directory iteration code udf: Convert udf_rename() to new directory iteration code udf: Convert udf_readdir() to new directory iteration udf: Convert udf_lookup() to use new directory iteration code udf: Convert udf_get_parent() to new directory iteration code udf: Convert empty_dir() to new directory iteration code udf: Convert udf_rmdir() to new directory iteration code udf: Convert udf_unlink() to new directory iteration code udf: Implement adding of dir entries using new iteration code udf: Convert udf_add_nondir() to new directory iteration udf: Convert udf_mkdir() to new directory iteration code udf: Convert udf_link() to new directory iteration code udf: Remove old directory iteration code udf: Handle error when expanding directory udf: Don't return bh from udf_expand_dir_adinicb() net: enetc: remove xdp_drops statistic from enetc_xdp_drop() net: enetc: add missing static descriptor and inline keyword posix-clock: Fix missing timespec64 check in pc_clock_settime() arm64: probes: Remove broken LDR (literal) uprobe support arm64: probes: Fix simulate_ldr*_literal() net: macb: Avoid 20s boot delay by skipping MDIO bus registration for fixed-link PHY irqchip/gic-v3-its: Fix VSYNC referencing an unmapped VPE on GIC v4.1 fat: fix uninitialized variable mm/swapfile: skip HugeTLB pages for unuse_vma devlink: drop the filter argument from devlinks_xa_find_get devlink: bump the instance index directly when iterating maple_tree: correct tree corruption on spanning store drm/shmem-helper: Fix BUG_ON() on mmap(PROT_WRITE, MAP_PRIVATE) iommu/vt-d: Fix incorrect pci_for_each_dma_alias() for non-PCI devices s390/sclp: Deactivate sclp after all its users s390/sclp_vt220: Convert newlines to CRLF instead of LFCR KVM: s390: gaccess: Check if guest address is in memslot KVM: s390: Change virtual to physical address access in diag 0x258 handler x86/cpufeatures: Define X86_FEATURE_AMD_IBPB_RET x86/cpufeatures: Add a IBPB_NO_RET BUG flag x86/entry: Have entry_ibpb() invalidate return predictions x86/bugs: Skip RSB fill at VMEXIT x86/bugs: Do not use UNTRAIN_RET with IBPB on entry blk-rq-qos: fix crash on rq_qos_wait vs. rq_qos_wake_function race io_uring/sqpoll: close race on waiting for sqring entries scsi: ufs: core: Set SDEV_OFFLINE when UFS is shut down drm/radeon: Fix encoder->possible_clones drm/vmwgfx: Handle surface check failure correctly drm/amdgpu/swsmu: Only force workload setup on init drm/amdgpu: prevent BO_HANDLES error from being overwritten iio: dac: ad5770r: add missing select REGMAP_SPI in Kconfig iio: dac: ltc1660: add missing select REGMAP_SPI in Kconfig iio: dac: stm32-dac-core: add missing select REGMAP_MMIO in Kconfig iio: adc: ti-ads8688: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig iio: hid-sensors: Fix an error handling path in _hid_sensor_set_report_latency() iio: light: veml6030: fix ALS sensor resolution iio: light: veml6030: fix IIO device retrieval from embedded device iio: light: opt3001: add missing full-scale range value iio: amplifiers: ada4250: add missing select REGMAP_SPI in Kconfig iio: dac: ad5766: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig iio: proximity: mb1232: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig iio: dac: ad3552r: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig iio: adc: ti-ads124s08: add missing select IIO_(TRIGGERED_)BUFFER in Kconfig Bluetooth: Call iso_exit() on module unload Bluetooth: Remove debugfs directory on module init failure Bluetooth: ISO: Fix multiple init when debugfs is disabled Bluetooth: btusb: Fix regression with fake CSR controllers 0a12:0001 xhci: Fix incorrect stream context type macro xhci: Mitigate failed set dequeue pointer commands USB: serial: option: add support for Quectel EG916Q-GL USB: serial: option: add Telit FN920C04 MBIM compositions usb: dwc3: Wait for EndXfer completion before restoring GUSB2PHYCFG parport: Proper fix for array out-of-bounds access x86/resctrl: Annotate get_mem_config() functions as __init x86/apic: Always explicitly disarm TSC-deadline timer x86/entry_32: Do not clobber user EFLAGS.ZF x86/entry_32: Clear CPU buffers after register restore in NMI return tty: n_gsm: Fix use-after-free in gsm_cleanup_mux pinctrl: ocelot: fix system hang on level based interrupts pinctrl: apple: check devm_kasprintf() returned value irqchip/gic-v4: Don't allow a VMOVP on a dying VPE irqchip/sifive-plic: Unmask interrupt in plic_irq_enable() tcp: fix mptcp DSS corruption due to large pmtu xmit mptcp: prevent MPC handshake on port-based signal endpoints nilfs2: propagate directory read errors from nilfs_find_entry() powerpc/64: Add big-endian ELFv2 flavour to crypto VMX asm generation ALSA: hda/conexant - Use cached pin control for Node 0x1d on HP EliteOne 1000 G2 udf: Allocate name buffer in directory iterator on heap udf: Avoid directory type conversion failure due to ENOMEM Linux 6.1.114 Change-Id: I02423f0d3a5feb145be5ce9aacc44ea4675e573b Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
2026-06-11 13:27:06 +09:00 · 2024-11-09 13:53:57 +00:00
parent edae6e6e3d 7ec6f9fa3d
commit 4d5ecb6e03
75 changed files with 1247 additions and 1275 deletions
--- a/2
+++ b/2
@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 6
 PATCHLEVEL = 1
-SUBLEVEL = 113
+SUBLEVEL = 114
 EXTRAVERSION =
 NAME = Curry Ramen

--- a/arch/arm64/kernel/probes/decode-insn.c
+++ b/arch/arm64/kernel/probes/decode-insn.c
@@ -99,10 +99,6 @@ arm_probe_decode_insn(probe_opcode_t insn, struct arch_probe_insn *api)
 	    aarch64_insn_is_blr(insn) ||
 	    aarch64_insn_is_ret(insn)) {
 		api->handler = simulate_br_blr_ret;
-	} else if (aarch64_insn_is_ldr_lit(insn)) {
-		api->handler = simulate_ldr_literal;
-	} else if (aarch64_insn_is_ldrsw_lit(insn)) {
-		api->handler = simulate_ldrsw_literal;
 	} else {
 		/*
 		 * Instruction cannot be stepped out-of-line and we don't
@@ -140,6 +136,17 @@ arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi)
 	probe_opcode_t insn = le32_to_cpu(*addr);
 	probe_opcode_t *scan_end = NULL;
 	unsigned long size = 0, offset = 0;
+	struct arch_probe_insn *api = &asi->api;
+
+	if (aarch64_insn_is_ldr_lit(insn)) {
+		api->handler = simulate_ldr_literal;
+		decoded = INSN_GOOD_NO_SLOT;
+	} else if (aarch64_insn_is_ldrsw_lit(insn)) {
+		api->handler = simulate_ldrsw_literal;
+		decoded = INSN_GOOD_NO_SLOT;
+	} else {
+		decoded = arm_probe_decode_insn(insn, &asi->api);
+	}

 	/*
 	 * If there's a symbol defined in front of and near enough to
@@ -157,7 +164,6 @@ arm_kprobe_decode_insn(kprobe_opcode_t *addr, struct arch_specific_insn *asi)
 		else
 			scan_end = addr - MAX_ATOMIC_CONTEXT_SIZE;
 	}
-	decoded = arm_probe_decode_insn(insn, &asi->api);

 	if (decoded != INSN_REJECTED && scan_end)
 		if (is_probed_address_atomic(addr - 1, scan_end))
--- a/arch/arm64/kernel/probes/simulate-insn.c
+++ b/arch/arm64/kernel/probes/simulate-insn.c
@@ -171,17 +171,15 @@ simulate_tbz_tbnz(u32 opcode, long addr, struct pt_regs *regs)
 void __kprobes
 simulate_ldr_literal(u32 opcode, long addr, struct pt_regs *regs)
 {
-	u64 *load_addr;
+	unsigned long load_addr;
 	int xn = opcode & 0x1f;
-	int disp;

-	disp = ldr_displacement(opcode);
-	load_addr = (u64 *) (addr + disp);
+	load_addr = addr + ldr_displacement(opcode);

 	if (opcode & (1 << 30))	/* x0-x30 */
-		set_x_reg(regs, xn, *load_addr);
+		set_x_reg(regs, xn, READ_ONCE(*(u64 *)load_addr));
 	else			/* w0-w30 */
-		set_w_reg(regs, xn, *load_addr);
+		set_w_reg(regs, xn, READ_ONCE(*(u32 *)load_addr));

 	instruction_pointer_set(regs, instruction_pointer(regs) + 4);
 }
@@ -189,14 +187,12 @@ simulate_ldr_literal(u32 opcode, long addr, struct pt_regs *regs)
 void __kprobes
 simulate_ldrsw_literal(u32 opcode, long addr, struct pt_regs *regs)
 {
-	s32 *load_addr;
+	unsigned long load_addr;
 	int xn = opcode & 0x1f;
-	int disp;

-	disp = ldr_displacement(opcode);
-	load_addr = (s32 *) (addr + disp);
+	load_addr = addr + ldr_displacement(opcode);

-	set_x_reg(regs, xn, *load_addr);
+	set_x_reg(regs, xn, READ_ONCE(*(s32 *)load_addr));

 	instruction_pointer_set(regs, instruction_pointer(regs) + 4);
 }
--- a/arch/s390/kvm/diag.c
+++ b/arch/s390/kvm/diag.c
@@ -77,7 +77,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
 	vcpu->stat.instruction_diagnose_258++;
 	if (vcpu->run->s.regs.gprs[rx] & 7)
 		return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
-	rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], rx, &parm, sizeof(parm));
+	rc = read_guest_real(vcpu, vcpu->run->s.regs.gprs[rx], &parm, sizeof(parm));
 	if (rc)
 		return kvm_s390_inject_prog_cond(vcpu, rc);
 	if (parm.parm_version != 2 || parm.parm_len < 5 || parm.code != 0x258)
--- a/arch/s390/kvm/gaccess.c
+++ b/arch/s390/kvm/gaccess.c
@@ -1001,6 +1001,8 @@ static int access_guest_page(struct kvm *kvm, enum gacc_mode mode, gpa_t gpa,
 	const gfn_t gfn = gpa_to_gfn(gpa);
 	int rc;

+	if (!gfn_to_memslot(kvm, gfn))
+		return PGM_ADDRESSING;
 	if (mode == GACC_STORE)
 		rc = kvm_write_guest_page(kvm, gfn, data, offset, len);
 	else
@@ -1158,6 +1160,8 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
 		gra += fragment_len;
 		data += fragment_len;
 	}
+	if (rc > 0)
+		vcpu->arch.pgm.code = rc;
 	return rc;
 }

--- a/arch/s390/kvm/gaccess.h
+++ b/arch/s390/kvm/gaccess.h
@@ -402,11 +402,12 @@ int read_guest_abs(struct kvm_vcpu *vcpu, unsigned long gpa, void *data,
 * @len: number of bytes to copy
 *
 * Copy @len bytes from @data (kernel space) to @gra (guest real address).
- * It is up to the caller to ensure that the entire guest memory range is
- * valid memory before calling this function.
 * Guest low address and key protection are not checked.
 *
- * Returns zero on success or -EFAULT on error.
+ * Returns zero on success, -EFAULT when copying from @data failed, or
+ * PGM_ADRESSING in case @gra is outside a memslot. In this case, pgm check info
+ * is also stored to allow injecting into the guest (if applicable) using
+ * kvm_s390_inject_prog_cond().
 *
 * If an error occurs data may have been copied partially to guest memory.
 */
@@ -425,11 +426,12 @@ int write_guest_real(struct kvm_vcpu *vcpu, unsigned long gra, void *data,
 * @len: number of bytes to copy
 *
 * Copy @len bytes from @gra (guest real address) to @data (kernel space).
- * It is up to the caller to ensure that the entire guest memory range is
- * valid memory before calling this function.
 * Guest key protection is not checked.
 *
- * Returns zero on success or -EFAULT on error.
+ * Returns zero on success, -EFAULT when copying to @data failed, or
+ * PGM_ADRESSING in case @gra is outside a memslot. In this case, pgm check info
+ * is also stored to allow injecting into the guest (if applicable) using
+ * kvm_s390_inject_prog_cond().
 *
 * If an error occurs data may have been copied partially to kernel space.
 */
--- a/arch/x86/entry/entry.S
+++ b/arch/x86/entry/entry.S
@@ -9,6 +9,8 @@
 #include <asm/unwind_hints.h>
 #include <asm/segment.h>
 #include <asm/cache.h>
+#include <asm/cpufeatures.h>
+#include <asm/nospec-branch.h>

 .pushsection .noinstr.text, "ax"

@@ -17,6 +19,9 @@ SYM_FUNC_START(entry_ibpb)
 	movl	$PRED_CMD_IBPB, %eax
 	xorl	%edx, %edx
 	wrmsr
+
+	/* Make sure IBPB clears return stack preductions too. */
+	FILL_RETURN_BUFFER %rax, RSB_CLEAR_LOOPS, X86_BUG_IBPB_NO_RET
 	RET
 SYM_FUNC_END(entry_ibpb)
 /* For KVM */
--- a/arch/x86/entry/entry_32.S
+++ b/arch/x86/entry/entry_32.S
@@ -902,6 +902,8 @@ SYM_FUNC_START(entry_SYSENTER_32)

 	/* Now ready to switch the cr3 */
 	SWITCH_TO_USER_CR3 scratch_reg=%eax
+	/* Clobbers ZF */
+	CLEAR_CPU_BUFFERS

 	/*
 	 * Restore all flags except IF. (We restore IF separately because
@@ -912,7 +914,6 @@ SYM_FUNC_START(entry_SYSENTER_32)
 	BUG_IF_WRONG_CR3 no_user_check=1
 	popfl
 	popl	%eax
-	CLEAR_CPU_BUFFERS

 	/*
 	 * Return back to the vDSO, which will pop ecx and edx.
@@ -1175,7 +1176,6 @@ SYM_CODE_START(asm_exc_nmi)

 	/* Not on SYSENTER stack. */
 	call	exc_nmi
-	CLEAR_CPU_BUFFERS
 	jmp	.Lnmi_return

 .Lnmi_from_sysenter_stack:
@@ -1196,6 +1196,7 @@ SYM_CODE_START(asm_exc_nmi)

 	CHECK_AND_APPLY_ESPFIX
 	RESTORE_ALL_NMI cr3_reg=%edi pop=4
+	CLEAR_CPU_BUFFERS
 	jmp	.Lirq_return

 #ifdef CONFIG_X86_ESPFIX32
@@ -1237,6 +1238,7 @@ SYM_CODE_START(asm_exc_nmi)
 	 *  1 - orig_ax
 	 */
 	lss	(1+5+6)*4(%esp), %esp			# back to espfix stack
+	CLEAR_CPU_BUFFERS
 	jmp	.Lirq_return
 #endif
 SYM_CODE_END(asm_exc_nmi)
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -217,7 +217,7 @@
 #define X86_FEATURE_SPEC_STORE_BYPASS_DISABLE	( 7*32+23) /* "" Disable Speculative Store Bypass. */
 #define X86_FEATURE_LS_CFG_SSBD		( 7*32+24)  /* "" AMD SSBD implementation via LS_CFG MSR */
 #define X86_FEATURE_IBRS		( 7*32+25) /* Indirect Branch Restricted Speculation */
-#define X86_FEATURE_IBPB		( 7*32+26) /* Indirect Branch Prediction Barrier */
+#define X86_FEATURE_IBPB		( 7*32+26) /* "ibpb" Indirect Branch Prediction Barrier without a guaranteed RSB flush */
 #define X86_FEATURE_STIBP		( 7*32+27) /* Single Thread Indirect Branch Predictors */
 #define X86_FEATURE_ZEN			(7*32+28) /* "" CPU based on Zen microarchitecture */
 #define X86_FEATURE_L1TF_PTEINV		( 7*32+29) /* "" L1TF workaround PTE inversion */
@@ -332,6 +332,7 @@
 #define X86_FEATURE_AMD_SSB_NO		(13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
 #define X86_FEATURE_CPPC		(13*32+27) /* Collaborative Processor Performance Control */
 #define X86_FEATURE_BTC_NO		(13*32+29) /* "" Not vulnerable to Branch Type Confusion */
+#define X86_FEATURE_AMD_IBPB_RET	(13*32+30) /* "" IBPB clears return address predictor */
 #define X86_FEATURE_BRS			(13*32+31) /* Branch Sampling available */

 /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
@@ -492,4 +493,5 @@
 #define X86_BUG_DIV0			X86_BUG(1*32 + 1) /* AMD DIV0 speculation bug */
 #define X86_BUG_RFDS			X86_BUG(1*32 + 2) /* CPU is vulnerable to Register File Data Sampling */
 #define X86_BUG_BHI			X86_BUG(1*32 + 3) /* CPU is affected by Branch History Injection */
+#define X86_BUG_IBPB_NO_RET		X86_BUG(1*32 + 4) /* "ibpb_no_ret" IBPB omits return target predictions */
 #endif /* _ASM_X86_CPUFEATURES_H */
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -503,7 +503,19 @@ static int lapic_timer_shutdown(struct clock_event_device *evt)
 	v = apic_read(APIC_LVTT);
 	v |= (APIC_LVT_MASKED | LOCAL_TIMER_VECTOR);
 	apic_write(APIC_LVTT, v);
-	apic_write(APIC_TMICT, 0);
+
+	/*
+	 * Setting APIC_LVT_MASKED (above) should be enough to tell
+	 * the hardware that this timer will never fire. But AMD
+	 * erratum 411 and some Intel CPU behavior circa 2024 say
+	 * otherwise.  Time for belt and suspenders programming: mask
+	 * the timer _and_ zero the counter registers:
+	 */
+	if (v & APIC_LVT_TIMER_TSCDEADLINE)
+		wrmsrl(MSR_IA32_TSC_DEADLINE, 0);
+	else
+		apic_write(APIC_TMICT, 0);
+
 	return 0;
 }

--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -1092,7 +1092,24 @@ do_cmd_auto:

 	case RETBLEED_MITIGATION_IBPB:
 		setup_force_cpu_cap(X86_FEATURE_ENTRY_IBPB);
+
+		/*
+		 * IBPB on entry already obviates the need for
+		 * software-based untraining so clear those in case some
+		 * other mitigation like SRSO has selected them.
+		 */
+		setup_clear_cpu_cap(X86_FEATURE_UNRET);
+		setup_clear_cpu_cap(X86_FEATURE_RETHUNK);
+
 		mitigate_smt = true;
+
+		/*
+		 * There is no need for RSB filling: entry_ibpb() ensures
+		 * all predictions, including the RSB, are invalidated,
+		 * regardless of IBPB implementation.
+		 */
+		setup_clear_cpu_cap(X86_FEATURE_RSB_VMEXIT);
+
 		break;

 	default:
@@ -2591,6 +2608,14 @@ static void __init srso_select_mitigation(void)
 			if (has_microcode) {
 				setup_force_cpu_cap(X86_FEATURE_ENTRY_IBPB);
 				srso_mitigation = SRSO_MITIGATION_IBPB;
+
+				/*
+				 * IBPB on entry already obviates the need for
+				 * software-based untraining so clear those in case some
+				 * other mitigation like Retbleed has selected them.
+				 */
+				setup_clear_cpu_cap(X86_FEATURE_UNRET);
+				setup_clear_cpu_cap(X86_FEATURE_RETHUNK);
 			}
 		} else {
 			pr_err("WARNING: kernel not compiled with CPU_IBPB_ENTRY.\n");
@@ -2603,6 +2628,13 @@ static void __init srso_select_mitigation(void)
 			if (!boot_cpu_has(X86_FEATURE_ENTRY_IBPB) && has_microcode) {
 				setup_force_cpu_cap(X86_FEATURE_IBPB_ON_VMEXIT);
 				srso_mitigation = SRSO_MITIGATION_IBPB_ON_VMEXIT;
+
+				/*
+				 * There is no need for RSB filling: entry_ibpb() ensures
+				 * all predictions, including the RSB, are invalidated,
+				 * regardless of IBPB implementation.
+				 */
+				setup_clear_cpu_cap(X86_FEATURE_RSB_VMEXIT);
 			}
 		} else {
 			pr_err("WARNING: kernel not compiled with CPU_SRSO.\n");
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1462,6 +1462,9 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
 	     boot_cpu_has(X86_FEATURE_HYPERVISOR)))
 		setup_force_cpu_bug(X86_BUG_BHI);

+	if (cpu_has(c, X86_FEATURE_AMD_IBPB) && !cpu_has(c, X86_FEATURE_AMD_IBPB_RET))
+		setup_force_cpu_bug(X86_BUG_IBPB_NO_RET);
+
 	if (cpu_matches(cpu_vuln_whitelist, NO_MELTDOWN))
 		return;

--- a/arch/x86/kernel/cpu/resctrl/core.c
+++ b/arch/x86/kernel/cpu/resctrl/core.c
@@ -174,7 +174,7 @@ static inline bool rdt_get_mb_table(struct rdt_resource *r)
 	return false;
 }

-static bool __get_mem_config_intel(struct rdt_resource *r)
+static __init bool __get_mem_config_intel(struct rdt_resource *r)
 {
 	struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r);
 	union cpuid_0x10_3_eax eax;
@@ -208,7 +208,7 @@ static bool __get_mem_config_intel(struct rdt_resource *r)
 	return true;
 }

-static bool __rdt_get_mem_config_amd(struct rdt_resource *r)
+static __init bool __rdt_get_mem_config_amd(struct rdt_resource *r)
 {
 	struct rdt_hw_resource *hw_res = resctrl_to_arch_res(r);
 	union cpuid_0x10_3_eax eax;
--- a/block/blk-rq-qos.c
+++ b/block/blk-rq-qos.c
@@ -219,8 +219,8 @@ static int rq_qos_wake_function(struct wait_queue_entry *curr,

 	data->got_token = true;
 	smp_wmb();
-	list_del_init(&curr->entry);
 	wake_up_process(data->task);
+	list_del_init_careful(&curr->entry);
 	return 1;
 }

--- a/drivers/bluetooth/btusb.c
+++ b/drivers/bluetooth/btusb.c
@@ -1191,10 +1191,15 @@ static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 	if (!urb)
 		return -ENOMEM;

-	/* Use maximum HCI Event size so the USB stack handles
-	 * ZPL/short-transfer automatically.
-	 */
-	size = HCI_MAX_EVENT_SIZE;
+	if (le16_to_cpu(data->udev->descriptor.idVendor)  == 0x0a12 &&
+	    le16_to_cpu(data->udev->descriptor.idProduct) == 0x0001)
+		/* Fake CSR devices don't seem to support sort-transter */
+		size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+	else
+		/* Use maximum HCI Event size so the USB stack handles
+		 * ZPL/short-transfer automatically.
+		 */
+		size = HCI_MAX_EVENT_SIZE;

 	buf = kmalloc(size, mem_flags);
 	if (!buf) {
--- a/drivers/crypto/vmx/Makefile
+++ b/drivers/crypto/vmx/Makefile
@@ -2,8 +2,18 @@
 obj-$(CONFIG_CRYPTO_DEV_VMX_ENCRYPT) += vmx-crypto.o
 vmx-crypto-objs := vmx.o aesp8-ppc.o ghashp8-ppc.o aes.o aes_cbc.o aes_ctr.o aes_xts.o ghash.o

+ifeq ($(CONFIG_CPU_LITTLE_ENDIAN),y)
+override flavour := linux-ppc64le
+else
+ifdef CONFIG_PPC64_ELF_ABI_V2
+override flavour := linux-ppc64-elfv2
+else
+override flavour := linux-ppc64
+endif
+endif
+
 quiet_cmd_perl = PERL    $@
-      cmd_perl = $(PERL) $< $(if $(CONFIG_CPU_LITTLE_ENDIAN), linux-ppc64le, linux-ppc64) > $@
+      cmd_perl = $(PERL) $< $(flavour) > $@

 targets += aesp8-ppc.S ghashp8-ppc.S

--- a/drivers/crypto/vmx/ppc-xlate.pl
+++ b/drivers/crypto/vmx/ppc-xlate.pl
@@ -9,6 +9,8 @@ open STDOUT,">$output" || die "can't open $output: $!";

 my %GLOBALS;
 my $dotinlocallabels=($flavour=~/linux/)?1:0;
+my $elfv2abi=(($flavour =~ /linux-ppc64le/) or ($flavour =~ /linux-ppc64-elfv2/))?1:0;
+my $dotfunctions=($elfv2abi=~1)?0:1;

 ################################################################
 # directives which need special treatment on different platforms
@@ -40,7 +42,7 @@ my $globl = sub {
 };
 my $text = sub {
    my $ret = ($flavour =~ /aix/) ? ".csect\t.text[PR],7" : ".text";
-    $ret = ".abiversion	2\n".$ret	if ($flavour =~ /linux.*64le/);
+    $ret = ".abiversion	2\n".$ret	if ($elfv2abi);
    $ret;
 };
 my $machine = sub {
@@ -56,8 +58,8 @@ my $size = sub {
    if ($flavour =~ /linux/)
    {	shift;
 	my $name = shift; $name =~ s|^[\.\_]||;
-	my $ret  = ".size	$name,.-".($flavour=~/64$/?".":"").$name;
-	$ret .= "\n.size	.$name,.-.$name" if ($flavour=~/64$/);
+	my $ret  = ".size	$name,.-".($dotfunctions?".":"").$name;
+	$ret .= "\n.size	.$name,.-.$name" if ($dotfunctions);
 	$ret;
    }
    else
@@ -142,7 +144,7 @@ my $vmr = sub {

 # Some ABIs specify vrsave, special-purpose register #256, as reserved
 # for system use.
-my $no_vrsave = ($flavour =~ /linux-ppc64le/);
+my $no_vrsave = ($elfv2abi);
 my $mtspr = sub {
    my ($f,$idx,$ra) = @_;
    if ($idx == 256 && $no_vrsave) {
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -259,7 +259,7 @@ static int amdgpu_cs_pass1(struct amdgpu_cs_parser *p,

 			/* Only a single BO list is allowed to simplify handling. */
 			if (p->bo_list)
-				ret = -EINVAL;
+				goto free_partial_kdata;

 			ret = amdgpu_cs_p1_bo_handles(p, p->chunks[i].kdata);
 			if (ret)
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -1831,7 +1831,7 @@ static int smu_bump_power_profile_mode(struct smu_context *smu,
 static int smu_adjust_power_state_dynamic(struct smu_context *smu,
 					  enum amd_dpm_forced_level level,
 					  bool skip_display_settings,
-					  bool force_update)
+					  bool init)
 {
 	int ret = 0;
 	int index = 0;
@@ -1860,7 +1860,7 @@ static int smu_adjust_power_state_dynamic(struct smu_context *smu,
 		}
 	}

-	if (force_update || smu_dpm_ctx->dpm_level != level) {
+	if (smu_dpm_ctx->dpm_level != level) {
 		ret = smu_asic_set_performance_level(smu, level);
 		if (ret) {
 			dev_err(smu->adev->dev, "Failed to set performance level!");
@@ -1877,7 +1877,7 @@ static int smu_adjust_power_state_dynamic(struct smu_context *smu,
 		index = index > 0 && index <= WORKLOAD_POLICY_MAX ? index - 1 : 0;
 		workload[0] = smu->workload_setting[index];

-		if (force_update || smu->power_profile_mode != workload[0])
+		if (init || smu->power_profile_mode != workload[0])
 			smu_bump_power_profile_mode(smu, workload, 0);
 	}

--- a/drivers/gpu/drm/drm_gem_shmem_helper.c
+++ b/drivers/gpu/drm/drm_gem_shmem_helper.c
@@ -638,6 +638,9 @@ int drm_gem_shmem_mmap(struct drm_gem_shmem_object *shmem, struct vm_area_struct
 		return ret;
 	}

+	if (is_cow_mapping(vma->vm_flags))
+		return -EINVAL;
+
 	ret = drm_gem_shmem_get_pages(shmem);
 	if (ret)
 		return ret;
--- a/drivers/gpu/drm/radeon/radeon_encoders.c
+++ b/drivers/gpu/drm/radeon/radeon_encoders.c
@@ -43,7 +43,7 @@ static uint32_t radeon_encoder_clones(struct drm_encoder *encoder)
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct drm_encoder *clone_encoder;
-	uint32_t index_mask = 0;
+	uint32_t index_mask = drm_encoder_mask(encoder);
 	int count;

 	/* DIG routing gets problematic */
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -1591,6 +1591,7 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 		DRM_ERROR("Surface size cannot exceed %dx%d\n",
 			dev_priv->texture_max_width,
 			dev_priv->texture_max_height);
+		ret = -EINVAL;
 		goto err_out;
 	}

--- a/drivers/iio/adc/Kconfig
+++ b/drivers/iio/adc/Kconfig
@@ -1193,6 +1193,8 @@ config TI_ADS8344
 config TI_ADS8688
 	tristate "Texas Instruments ADS8688"
 	depends on SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  If you say yes here you get support for Texas Instruments ADS8684 and
 	  and ADS8688 ADC chips
@@ -1203,6 +1205,8 @@ config TI_ADS8688
 config TI_ADS124S08
 	tristate "Texas Instruments ADS124S08"
 	depends on SPI
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  If you say yes here you get support for Texas Instruments ADS124S08
 	  and ADS124S06 ADC chips
--- a/drivers/iio/amplifiers/Kconfig
+++ b/drivers/iio/amplifiers/Kconfig
@@ -26,6 +26,7 @@ config AD8366
 config ADA4250
 	tristate "Analog Devices ADA4250 Instrumentation Amplifier"
 	depends on SPI
+	select REGMAP_SPI
 	help
 	  Say yes here to build support for Analog Devices ADA4250
 	  SPI Amplifier's support. The driver provides direct access via
--- a/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
+++ b/drivers/iio/common/hid-sensors/hid-sensor-trigger.c
@@ -32,7 +32,7 @@ static ssize_t _hid_sensor_set_report_latency(struct device *dev,
 	latency = integer * 1000 + fract / 1000;
 	ret = hid_sensor_set_report_latency(attrb, latency);
 	if (ret < 0)
-		return len;
+		return ret;

 	attrb->latency_ms = hid_sensor_get_report_latency(attrb);

--- a/drivers/iio/dac/Kconfig
+++ b/drivers/iio/dac/Kconfig
@@ -9,6 +9,8 @@ menu "Digital to analog converters"
 config AD3552R
 	tristate "Analog Devices AD3552R DAC driver"
 	depends on SPI_MASTER
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for Analog Devices AD3552R
 	  Digital to Analog Converter.
@@ -214,6 +216,8 @@ config AD5764
 config AD5766
 	tristate "Analog Devices AD5766/AD5767 DAC driver"
 	depends on SPI_MASTER
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say yes here to build support for Analog Devices AD5766, AD5767
 	  Digital to Analog Converter.
@@ -224,6 +228,7 @@ config AD5766
 config AD5770R
 	tristate "Analog Devices AD5770R IDAC driver"
 	depends on SPI_MASTER
+	select REGMAP_SPI
 	help
 	  Say yes here to build support for Analog Devices AD5770R Digital to
 	  Analog Converter.
@@ -314,6 +319,7 @@ config LPC18XX_DAC
 config LTC1660
 	tristate "Linear Technology LTC1660/LTC1665 DAC SPI driver"
 	depends on SPI
+	select REGMAP_SPI
 	help
 	  Say yes here to build support for Linear Technology
 	  LTC1660 and LTC1665 Digital to Analog Converters.
@@ -399,6 +405,7 @@ config STM32_DAC

 config STM32_DAC_CORE
 	tristate
+	select REGMAP_MMIO

 config TI_DAC082S085
 	tristate "Texas Instruments 8/10/12-bit 2/4-channel DAC driver"
--- a/drivers/iio/light/opt3001.c
+++ b/drivers/iio/light/opt3001.c
@@ -138,6 +138,10 @@ static const struct opt3001_scale opt3001_scales[] = {
 		.val = 20966,
 		.val2 = 400000,
 	},
+	{
+		.val = 41932,
+		.val2 = 800000,
+	},
 	{
 		.val = 83865,
 		.val2 = 600000,
--- a/drivers/iio/light/veml6030.c
+++ b/drivers/iio/light/veml6030.c
@@ -99,9 +99,8 @@ static const char * const period_values[] = {
 static ssize_t in_illuminance_period_available_show(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
+	struct veml6030_data *data = iio_priv(dev_to_iio_dev(dev));
 	int ret, reg, x;
-	struct iio_dev *indio_dev = i2c_get_clientdata(to_i2c_client(dev));
-	struct veml6030_data *data = iio_priv(indio_dev);

 	ret = regmap_read(data->regmap, VEML6030_REG_ALS_CONF, &reg);
 	if (ret) {
@@ -780,7 +779,7 @@ static int veml6030_hw_init(struct iio_dev *indio_dev)

 	/* Cache currently active measurement parameters */
 	data->cur_gain = 3;
-	data->cur_resolution = 4608;
+	data->cur_resolution = 5376;
 	data->cur_integration_time = 3;

 	return ret;
--- a/drivers/iio/proximity/Kconfig
+++ b/drivers/iio/proximity/Kconfig
@@ -60,6 +60,8 @@ config LIDAR_LITE_V2
 config MB1232
 	tristate "MaxSonar I2CXL family ultrasonic sensors"
 	depends on I2C
+	select IIO_BUFFER
+	select IIO_TRIGGERED_BUFFER
 	help
 	  Say Y to build a driver for the ultrasonic sensors I2CXL of
 	  MaxBotix which have an i2c interface. It can be used to measure
--- a/drivers/iommu/intel/iommu.c
+++ b/drivers/iommu/intel/iommu.c
@@ -4083,8 +4083,10 @@ static int domain_context_clear_one_cb(struct pci_dev *pdev, u16 alias, void *op
 */
 static void domain_context_clear(struct device_domain_info *info)
 {
-	if (!dev_is_pci(info->dev))
+	if (!dev_is_pci(info->dev)) {
 		domain_context_clear_one(info, info->bus, info->devfn);
+		return;
+	}

 	pci_for_each_dma_alias(to_pci_dev(info->dev),
 			       &domain_context_clear_one_cb, info);
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -783,6 +783,7 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
 					   struct its_cmd_block *cmd,
 					   struct its_cmd_desc *desc)
 {
+	struct its_vpe *vpe = valid_vpe(its, desc->its_vmapp_cmd.vpe);
 	unsigned long vpt_addr, vconf_addr;
 	u64 target;
 	bool alloc;
@@ -792,9 +793,14 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
 	its_encode_valid(cmd, desc->its_vmapp_cmd.valid);

 	if (!desc->its_vmapp_cmd.valid) {
+		alloc = !atomic_dec_return(&desc->its_vmapp_cmd.vpe->vmapp_count);
 		if (is_v4_1(its)) {
-			alloc = !atomic_dec_return(&desc->its_vmapp_cmd.vpe->vmapp_count);
 			its_encode_alloc(cmd, alloc);
+			/*
+			 * Unmapping a VPE is self-synchronizing on GICv4.1,
+			 * no need to issue a VSYNC.
+			 */
+			vpe = NULL;
 		}

 		goto out;
@@ -807,13 +813,13 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
 	its_encode_vpt_addr(cmd, vpt_addr);
 	its_encode_vpt_size(cmd, LPI_NRBITS - 1);

+	alloc = !atomic_fetch_inc(&desc->its_vmapp_cmd.vpe->vmapp_count);
+
 	if (!is_v4_1(its))
 		goto out;

 	vconf_addr = virt_to_phys(page_address(desc->its_vmapp_cmd.vpe->its_vm->vprop_page));

-	alloc = !atomic_fetch_inc(&desc->its_vmapp_cmd.vpe->vmapp_count);
-
 	its_encode_alloc(cmd, alloc);

 	/*
@@ -829,7 +835,7 @@ static struct its_vpe *its_build_vmapp_cmd(struct its_node *its,
 out:
 	its_fixup_cmd(cmd);

-	return valid_vpe(its, desc->its_vmapp_cmd.vpe);
+	return vpe;
 }

 static struct its_vpe *its_build_vmapti_cmd(struct its_node *its,
@@ -3789,6 +3795,13 @@ static int its_vpe_set_affinity(struct irq_data *d,
 	unsigned long flags;
 	int from, cpu;

+	/*
+	 * Check if we're racing against a VPE being destroyed, for
+	 * which we don't want to allow a VMOVP.
+	 */
+	if (!atomic_read(&vpe->vmapp_count))
+		return -EINVAL;
+
 	/*
 	 * Changing affinity is mega expensive, so let's be as lazy as
 	 * we can and only do it if we really have to. Also, if mapped
@@ -4425,9 +4438,8 @@ static int its_vpe_init(struct its_vpe *vpe)
 	raw_spin_lock_init(&vpe->vpe_lock);
 	vpe->vpe_id = vpe_id;
 	vpe->vpt_page = vpt_page;
-	if (gic_rdists->has_rvpeid)
-		atomic_set(&vpe->vmapp_count, 0);
-	else
+	atomic_set(&vpe->vmapp_count, 0);
+	if (!gic_rdists->has_rvpeid)
 		vpe->vpe_proxy_event = -1;

 	return 0;
--- a/drivers/irqchip/irq-sifive-plic.c
+++ b/drivers/irqchip/irq-sifive-plic.c
@@ -116,16 +116,6 @@ static inline void plic_irq_toggle(const struct cpumask *mask,
 	}
 }

-static void plic_irq_enable(struct irq_data *d)
-{
-	plic_irq_toggle(irq_data_get_effective_affinity_mask(d), d, 1);
-}
-
-static void plic_irq_disable(struct irq_data *d)
-{
-	plic_irq_toggle(irq_data_get_effective_affinity_mask(d), d, 0);
-}
-
 static void plic_irq_unmask(struct irq_data *d)
 {
 	struct plic_priv *priv = irq_data_get_irq_chip_data(d);
@@ -140,6 +130,17 @@ static void plic_irq_mask(struct irq_data *d)
 	writel(0, priv->regs + PRIORITY_BASE + d->hwirq * PRIORITY_PER_ID);
 }

+static void plic_irq_enable(struct irq_data *d)
+{
+	plic_irq_toggle(irq_data_get_effective_affinity_mask(d), d, 1);
+	plic_irq_unmask(d);
+}
+
+static void plic_irq_disable(struct irq_data *d)
+{
+	plic_irq_toggle(irq_data_get_effective_affinity_mask(d), d, 0);
+}
+
 static void plic_irq_eoi(struct irq_data *d)
 {
 	struct plic_handler *handler = this_cpu_ptr(&plic_handlers);
--- a/drivers/net/ethernet/cadence/macb_main.c
+++ b/drivers/net/ethernet/cadence/macb_main.c
@@ -878,9 +878,6 @@ static int macb_mdiobus_register(struct macb *bp)
 		return ret;
 	}

-	if (of_phy_is_fixed_link(np))
-		return mdiobus_register(bp->mii_bus);
-
 	/* Only create the PHY from the device tree if at least one PHY is
 	 * described. Otherwise scan the entire MDIO bus. We do this to support
 	 * old device tree that did not follow the best practices and did not
@@ -901,8 +898,19 @@ static int macb_mdiobus_register(struct macb *bp)

 static int macb_mii_init(struct macb *bp)
 {
+	struct device_node *child, *np = bp->pdev->dev.of_node;
 	int err = -ENXIO;

+	/* With fixed-link, we don't need to register the MDIO bus,
+	 * except if we have a child named "mdio" in the device tree.
+	 * In that case, some devices may be attached to the MACB's MDIO bus.
+	 */
+	child = of_get_child_by_name(np, "mdio");
+	if (child)
+		of_node_put(child);
+	else if (of_phy_is_fixed_link(np))
+		return macb_mii_probe(bp->dev);
+
 	/* Enable management port */
 	macb_writel(bp, NCR, MACB_BIT(MPE));

--- a/drivers/net/ethernet/freescale/enetc/enetc.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc.c
@@ -1492,7 +1492,6 @@ static void enetc_xdp_drop(struct enetc_bdr *rx_ring, int rx_ring_first,
 				  &rx_ring->rx_swbd[rx_ring_first]);
 		enetc_bdr_idx_inc(rx_ring, &rx_ring_first);
 	}
-	rx_ring->stats.xdp_drops++;
 }

 static int enetc_clean_rx_ring_xdp(struct enetc_bdr *rx_ring,
@@ -1557,6 +1556,7 @@ static int enetc_clean_rx_ring_xdp(struct enetc_bdr *rx_ring,
 			fallthrough;
 		case XDP_DROP:
 			enetc_xdp_drop(rx_ring, orig_i, i);
+			rx_ring->stats.xdp_drops++;
 			break;
 		case XDP_PASS:
 			rxbd = orig_rxbd;
--- a/drivers/parport/procfs.c
+++ b/drivers/parport/procfs.c
@@ -51,12 +51,12 @@ static int do_active_device(struct ctl_table *table, int write,
 	
 	for (dev = port->devices; dev ; dev = dev->next) {
 		if(dev == port->cad) {
-			len += snprintf(buffer, sizeof(buffer), "%s\n", dev->name);
+			len += scnprintf(buffer, sizeof(buffer), "%s\n", dev->name);
 		}
 	}

 	if(!len) {
-		len += snprintf(buffer, sizeof(buffer), "%s\n", "none");
+		len += scnprintf(buffer, sizeof(buffer), "%s\n", "none");
 	}

 	if (len > *lenp)
@@ -87,19 +87,19 @@ static int do_autoprobe(struct ctl_table *table, int write,
 	}
 	
 	if ((str = info->class_name) != NULL)
-		len += snprintf (buffer + len, sizeof(buffer) - len, "CLASS:%s;\n", str);
+		len += scnprintf (buffer + len, sizeof(buffer) - len, "CLASS:%s;\n", str);

 	if ((str = info->model) != NULL)
-		len += snprintf (buffer + len, sizeof(buffer) - len, "MODEL:%s;\n", str);
+		len += scnprintf (buffer + len, sizeof(buffer) - len, "MODEL:%s;\n", str);

 	if ((str = info->mfr) != NULL)
-		len += snprintf (buffer + len, sizeof(buffer) - len, "MANUFACTURER:%s;\n", str);
+		len += scnprintf (buffer + len, sizeof(buffer) - len, "MANUFACTURER:%s;\n", str);

 	if ((str = info->description) != NULL)
-		len += snprintf (buffer + len, sizeof(buffer) - len, "DESCRIPTION:%s;\n", str);
+		len += scnprintf (buffer + len, sizeof(buffer) - len, "DESCRIPTION:%s;\n", str);

 	if ((str = info->cmdset) != NULL)
-		len += snprintf (buffer + len, sizeof(buffer) - len, "COMMAND SET:%s;\n", str);
+		len += scnprintf (buffer + len, sizeof(buffer) - len, "COMMAND SET:%s;\n", str);

 	if (len > *lenp)
 		len = *lenp;
@@ -128,7 +128,7 @@ static int do_hardware_base_addr(struct ctl_table *table, int write,
 	if (write) /* permissions prevent this anyway */
 		return -EACCES;

-	len += snprintf (buffer, sizeof(buffer), "%lu\t%lu\n", port->base, port->base_hi);
+	len += scnprintf (buffer, sizeof(buffer), "%lu\t%lu\n", port->base, port->base_hi);

 	if (len > *lenp)
 		len = *lenp;
@@ -155,7 +155,7 @@ static int do_hardware_irq(struct ctl_table *table, int write,
 	if (write) /* permissions prevent this anyway */
 		return -EACCES;

-	len += snprintf (buffer, sizeof(buffer), "%d\n", port->irq);
+	len += scnprintf (buffer, sizeof(buffer), "%d\n", port->irq);

 	if (len > *lenp)
 		len = *lenp;
@@ -182,7 +182,7 @@ static int do_hardware_dma(struct ctl_table *table, int write,
 	if (write) /* permissions prevent this anyway */
 		return -EACCES;

-	len += snprintf (buffer, sizeof(buffer), "%d\n", port->dma);
+	len += scnprintf (buffer, sizeof(buffer), "%d\n", port->dma);

 	if (len > *lenp)
 		len = *lenp;
@@ -213,7 +213,7 @@ static int do_hardware_modes(struct ctl_table *table, int write,
 #define printmode(x)							\
 do {									\
 	if (port->modes & PARPORT_MODE_##x)				\
-		len += snprintf(buffer + len, sizeof(buffer) - len, "%s%s", f++ ? "," : "", #x); \
+		len += scnprintf(buffer + len, sizeof(buffer) - len, "%s%s", f++ ? "," : "", #x); \
 } while (0)
 		int f = 0;
 		printmode(PCSPP);
--- a/drivers/pinctrl/pinctrl-apple-gpio.c
+++ b/drivers/pinctrl/pinctrl-apple-gpio.c
@@ -471,6 +471,9 @@ static int apple_gpio_pinctrl_probe(struct platform_device *pdev)
 	for (i = 0; i < npins; i++) {
 		pins[i].number = i;
 		pins[i].name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "PIN%u", i);
+		if (!pins[i].name)
+			return -ENOMEM;
+
 		pins[i].drv_data = pctl;
 		pin_names[i] = pins[i].name;
 		pin_nums[i] = i;
--- a/drivers/pinctrl/pinctrl-ocelot.c
+++ b/drivers/pinctrl/pinctrl-ocelot.c
@@ -1962,21 +1962,21 @@ static void ocelot_irq_handler(struct irq_desc *desc)
 	unsigned int reg = 0, irq, i;
 	unsigned long irqs;

+	chained_irq_enter(parent_chip, desc);
+
 	for (i = 0; i < info->stride; i++) {
 		regmap_read(info->map, id_reg + 4 * i, &reg);
 		if (!reg)
 			continue;

-		chained_irq_enter(parent_chip, desc);
-
 		irqs = reg;

 		for_each_set_bit(irq, &irqs,
 				 min(32U, info->desc->npins - 32 * i))
 			generic_handle_domain_irq(chip->irq.domain, irq + 32 * i);
-
-		chained_irq_exit(parent_chip, desc);
 	}
+
+	chained_irq_exit(parent_chip, desc);
 }

 static int ocelot_gpiochip_register(struct platform_device *pdev,
--- a/drivers/s390/char/sclp.c
+++ b/drivers/s390/char/sclp.c
@@ -1200,7 +1200,8 @@ sclp_reboot_event(struct notifier_block *this, unsigned long event, void *ptr)
 }

 static struct notifier_block sclp_reboot_notifier = {
-	.notifier_call = sclp_reboot_event
+	.notifier_call = sclp_reboot_event,
+	.priority      = INT_MIN,
 };

 static ssize_t con_pages_show(struct device_driver *dev, char *buf)
--- a/drivers/s390/char/sclp_vt220.c
+++ b/drivers/s390/char/sclp_vt220.c
@@ -319,7 +319,7 @@ sclp_vt220_add_msg(struct sclp_vt220_request *request,
 	buffer = (void *) ((addr_t) sccb + sccb->header.length);

 	if (convertlf) {
-		/* Perform Linefeed conversion (0x0a -> 0x0a 0x0d)*/
+		/* Perform Linefeed conversion (0x0a -> 0x0d 0x0a)*/
 		for (from=0, to=0;
 		     (from < count) && (to < sclp_vt220_space_left(request));
 		     from++) {
@@ -328,8 +328,8 @@ sclp_vt220_add_msg(struct sclp_vt220_request *request,
 			/* Perform conversion */
 			if (c == 0x0a) {
 				if (to + 1 < sclp_vt220_space_left(request)) {
-					((unsigned char *) buffer)[to++] = c;
 					((unsigned char *) buffer)[to++] = 0x0d;
+					((unsigned char *) buffer)[to++] = c;
 				} else
 					break;

--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2568,6 +2568,8 @@ static void gsm_cleanup_mux(struct gsm_mux *gsm, bool disc)
 	mutex_unlock(&gsm->mutex);
 	/* Now wipe the queues */
 	tty_ldisc_flush(gsm->tty);
+
+	guard(spinlock_irqsave)(&gsm->tx_lock);
 	list_for_each_entry_safe(txq, ntxq, &gsm->tx_ctrl_list, list)
 		kfree(txq);
 	INIT_LIST_HEAD(&gsm->tx_ctrl_list);
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10012,7 +10012,9 @@ static void ufshcd_wl_shutdown(struct device *dev)
 	shost_for_each_device(sdev, hba->host) {
 		if (sdev == hba->ufs_device_wlun)
 			continue;
-		scsi_device_quiesce(sdev);
+		mutex_lock(&sdev->state_mutex);
+		scsi_device_set_state(sdev, SDEV_OFFLINE);
+		mutex_unlock(&sdev->state_mutex);
 	}
 	__ufshcd_wl_suspend(hba, UFS_SHUTDOWN_PM);
 }
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -445,6 +445,10 @@ skip_status:
 			dwc3_gadget_ep_get_transfer_index(dep);
 	}

+	if (DWC3_DEPCMD_CMD(cmd) == DWC3_DEPCMD_ENDTRANSFER &&
+	    !(cmd & DWC3_DEPCMD_CMDIOC))
+		mdelay(1);
+
 	if (saved_config) {
 		reg = dwc3_readl(dwc->regs, DWC3_GUSB2PHYCFG(0));
 		reg |= saved_config;
@@ -1731,12 +1735,10 @@ static int __dwc3_stop_active_transfer(struct dwc3_ep *dep, bool force, bool int
 	WARN_ON_ONCE(ret);
 	dep->resource_index = 0;

-	if (!interrupt) {
-		mdelay(1);
+	if (!interrupt)
 		dep->flags &= ~DWC3_EP_TRANSFER_STARTED;
-	} else if (!ret) {
+	else if (!ret)
 		dep->flags |= DWC3_EP_END_TRANSFER_PENDING;
-	}

 	dep->flags &= ~DWC3_EP_DELAY_STOP;
 	return ret;
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1007,7 +1007,7 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep)
 					td_to_noop(xhci, ring, cached_td, false);
 					cached_td->cancel_status = TD_CLEARED;
 				}
-
+				td_to_noop(xhci, ring, td, false);
 				td->cancel_status = TD_CLEARING_CACHE;
 				cached_td = td;
 				break;
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1284,7 +1284,7 @@ enum xhci_setup_dev {
 /* Set TR Dequeue Pointer command TRB fields, 6.4.3.9 */
 #define TRB_TO_STREAM_ID(p)		((((p) & (0xffff << 16)) >> 16))
 #define STREAM_ID_FOR_TRB(p)		((((p)) & 0xffff) << 16)
-#define SCT_FOR_TRB(p)			(((p) << 1) & 0x7)
+#define SCT_FOR_TRB(p)			(((p) & 0x7) << 1)

 /* Link TRB specific fields */
 #define TRB_TC			(1<<1)
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -279,6 +279,7 @@ static void option_instat_callback(struct urb *urb);
 #define QUECTEL_PRODUCT_EG912Y			0x6001
 #define QUECTEL_PRODUCT_EC200S_CN		0x6002
 #define QUECTEL_PRODUCT_EC200A			0x6005
+#define QUECTEL_PRODUCT_EG916Q			0x6007
 #define QUECTEL_PRODUCT_EM061K_LWW		0x6008
 #define QUECTEL_PRODUCT_EM061K_LCN		0x6009
 #define QUECTEL_PRODUCT_EC200T			0x6026
@@ -1270,6 +1271,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG912Y, 0xff, 0, 0) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EG916Q, 0xff, 0x00, 0x00) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM500K, 0xff, 0x00, 0x00) },

 	{ USB_DEVICE(CMOTECH_VENDOR_ID, CMOTECH_PRODUCT_6001) },
@@ -1380,10 +1382,16 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = NCTRL(0) | RSVD(1) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a0, 0xff),	/* Telit FN20C04 (rmnet) */
 	  .driver_info = RSVD(0) | NCTRL(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a2, 0xff),	/* Telit FN920C04 (MBIM) */
+	  .driver_info = NCTRL(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a4, 0xff),	/* Telit FN20C04 (rmnet) */
 	  .driver_info = RSVD(0) | NCTRL(3) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a7, 0xff),	/* Telit FN920C04 (MBIM) */
+	  .driver_info = NCTRL(4) },
 	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10a9, 0xff),	/* Telit FN20C04 (rmnet) */
 	  .driver_info = RSVD(0) | NCTRL(2) | RSVD(3) | RSVD(4) },
+	{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x10aa, 0xff),	/* Telit FN920C04 (MBIM) */
+	  .driver_info = NCTRL(3) | RSVD(4) | RSVD(5) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910),
 	  .driver_info = NCTRL(0) | RSVD(1) | RSVD(3) },
 	{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_ME910_DUAL_MODEM),
--- a/fs/btrfs/tree-log.c
+++ b/fs/btrfs/tree-log.c
@@ -1372,7 +1372,7 @@ static noinline int add_inode_ref(struct btrfs_trans_handle *trans,
 	struct inode *inode = NULL;
 	unsigned long ref_ptr;
 	unsigned long ref_end;
-	struct fscrypt_str name;
+	struct fscrypt_str name = { 0 };
 	int ret;
 	int log_ref_ver = 0;
 	u64 parent_objectid;
@@ -1844,7 +1844,7 @@ static noinline int replay_one_name(struct btrfs_trans_handle *trans,
 				    struct btrfs_dir_item *di,
 				    struct btrfs_key *key)
 {
-	struct fscrypt_str name;
+	struct fscrypt_str name = { 0 };
 	struct btrfs_dir_item *dir_dst_di;
 	struct btrfs_dir_item *index_dst_di;
 	bool dir_dst_matches = false;
@@ -2124,7 +2124,7 @@ static noinline int check_item_in_log(struct btrfs_trans_handle *trans,
 	struct extent_buffer *eb;
 	int slot;
 	struct btrfs_dir_item *di;
-	struct fscrypt_str name;
+	struct fscrypt_str name = { 0 };
 	struct inode *inode = NULL;
 	struct btrfs_key location;

--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -1037,7 +1037,7 @@ error_inode:
 	if (corrupt < 0) {
 		fat_fs_error(new_dir->i_sb,
 			     "%s: Filesystem corrupted (i_pos %lld)",
-			     __func__, sinfo.i_pos);
+			     __func__, new_i_pos);
 	}
 	goto out;
 }
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -331,6 +331,8 @@ static int nilfs_readdir(struct file *file, struct dir_context *ctx)
 * returns the page in which the entry was found, and the entry itself
 * (as a parameter - res_dir). Page is returned mapped and unlocked.
 * Entry is guaranteed to be valid.
+ *
+ * On failure, returns an error pointer and the caller should ignore res_page.
 */
 struct nilfs_dir_entry *
 nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
@@ -358,22 +360,24 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
 	do {
 		char *kaddr = nilfs_get_page(dir, n, &page);

-		if (!IS_ERR(kaddr)) {
-			de = (struct nilfs_dir_entry *)kaddr;
-			kaddr += nilfs_last_byte(dir, n) - reclen;
-			while ((char *) de <= kaddr) {
-				if (de->rec_len == 0) {
-					nilfs_error(dir->i_sb,
-						"zero-length directory entry");
-					nilfs_put_page(page);
-					goto out;
-				}
-				if (nilfs_match(namelen, name, de))
-					goto found;
-				de = nilfs_next_entry(de);
+		if (IS_ERR(kaddr))
+			return ERR_CAST(kaddr);
+
+		de = (struct nilfs_dir_entry *)kaddr;
+		kaddr += nilfs_last_byte(dir, n) - reclen;
+		while ((char *)de <= kaddr) {
+			if (de->rec_len == 0) {
+				nilfs_error(dir->i_sb,
+					    "zero-length directory entry");
+				nilfs_put_page(page);
+				goto out;
 			}
-			nilfs_put_page(page);
+			if (nilfs_match(namelen, name, de))
+				goto found;
+			de = nilfs_next_entry(de);
 		}
+		nilfs_put_page(page);
+
 		if (++n >= npages)
 			n = 0;
 		/* next page is past the blocks we've got */
@@ -386,7 +390,7 @@ nilfs_find_entry(struct inode *dir, const struct qstr *qstr,
 		}
 	} while (n != start);
 out:
-	return NULL;
+	return ERR_PTR(-ENOENT);

 found:
 	*res_page = page;
@@ -431,19 +435,19 @@ fail:
 	return NULL;
 }

-ino_t nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr)
+int nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr, ino_t *ino)
 {
-	ino_t res = 0;
 	struct nilfs_dir_entry *de;
 	struct page *page;

 	de = nilfs_find_entry(dir, qstr, &page);
-	if (de) {
-		res = le64_to_cpu(de->inode);
-		kunmap(page);
-		put_page(page);
-	}
-	return res;
+	if (IS_ERR(de))
+		return PTR_ERR(de);
+
+	*ino = le64_to_cpu(de->inode);
+	kunmap(page);
+	put_page(page);
+	return 0;
 }

 /* Releases the page */
--- a/fs/nilfs2/namei.c
+++ b/fs/nilfs2/namei.c
@@ -55,12 +55,20 @@ nilfs_lookup(struct inode *dir, struct dentry *dentry, unsigned int flags)
 {
 	struct inode *inode;
 	ino_t ino;
+	int res;

 	if (dentry->d_name.len > NILFS_NAME_LEN)
 		return ERR_PTR(-ENAMETOOLONG);

-	ino = nilfs_inode_by_name(dir, &dentry->d_name);
-	inode = ino ? nilfs_iget(dir->i_sb, NILFS_I(dir)->i_root, ino) : NULL;
+	res = nilfs_inode_by_name(dir, &dentry->d_name, &ino);
+	if (res) {
+		if (res != -ENOENT)
+			return ERR_PTR(res);
+		inode = NULL;
+	} else {
+		inode = nilfs_iget(dir->i_sb, NILFS_I(dir)->i_root, ino);
+	}
+
 	return d_splice_alias(inode, dentry);
 }

@@ -263,10 +271,11 @@ static int nilfs_do_unlink(struct inode *dir, struct dentry *dentry)
 	struct page *page;
 	int err;

-	err = -ENOENT;
 	de = nilfs_find_entry(dir, &dentry->d_name, &page);
-	if (!de)
+	if (IS_ERR(de)) {
+		err = PTR_ERR(de);
 		goto out;
+	}

 	inode = d_inode(dentry);
 	err = -EIO;
@@ -361,10 +370,11 @@ static int nilfs_rename(struct user_namespace *mnt_userns,
 	if (unlikely(err))
 		return err;

-	err = -ENOENT;
 	old_de = nilfs_find_entry(old_dir, &old_dentry->d_name, &old_page);
-	if (!old_de)
+	if (IS_ERR(old_de)) {
+		err = PTR_ERR(old_de);
 		goto out;
+	}

 	if (S_ISDIR(old_inode->i_mode)) {
 		err = -EIO;
@@ -381,10 +391,12 @@ static int nilfs_rename(struct user_namespace *mnt_userns,
 		if (dir_de && !nilfs_empty_dir(new_inode))
 			goto out_dir;

-		err = -ENOENT;
-		new_de = nilfs_find_entry(new_dir, &new_dentry->d_name, &new_page);
-		if (!new_de)
+		new_de = nilfs_find_entry(new_dir, &new_dentry->d_name,
+					  &new_page);
+		if (IS_ERR(new_de)) {
+			err = PTR_ERR(new_de);
 			goto out_dir;
+		}
 		nilfs_set_link(new_dir, new_de, new_page, old_inode);
 		nilfs_mark_inode_dirty(new_dir);
 		new_inode->i_ctime = current_time(new_inode);
@@ -438,13 +450,14 @@ out:
 */
 static struct dentry *nilfs_get_parent(struct dentry *child)
 {
-	unsigned long ino;
+	ino_t ino;
+	int res;
 	struct inode *inode;
 	struct nilfs_root *root;

-	ino = nilfs_inode_by_name(d_inode(child), &dotdot_name);
-	if (!ino)
-		return ERR_PTR(-ENOENT);
+	res = nilfs_inode_by_name(d_inode(child), &dotdot_name, &ino);
+	if (res)
+		return ERR_PTR(res);

 	root = NILFS_I(d_inode(child))->i_root;

--- a/fs/nilfs2/nilfs.h
+++ b/fs/nilfs2/nilfs.h
@@ -233,7 +233,7 @@ static inline __u32 nilfs_mask_flags(umode_t mode, __u32 flags)

 /* dir.c */
 extern int nilfs_add_link(struct dentry *, struct inode *);
-extern ino_t nilfs_inode_by_name(struct inode *, const struct qstr *);
+int nilfs_inode_by_name(struct inode *dir, const struct qstr *qstr, ino_t *ino);
 extern int nilfs_make_empty(struct inode *, struct inode *);
 extern struct nilfs_dir_entry *
 nilfs_find_entry(struct inode *, const struct qstr *, struct page **);
--- a/fs/smb/server/mgmt/user_session.c
+++ b/fs/smb/server/mgmt/user_session.c
@@ -176,9 +176,10 @@ static void ksmbd_expire_session(struct ksmbd_conn *conn)

 	down_write(&conn->session_lock);
 	xa_for_each(&conn->sessions, id, sess) {
-		if (sess->state != SMB2_SESSION_VALID ||
-		    time_after(jiffies,
-			       sess->last_active + SMB2_SESSION_TIMEOUT)) {
+		if (atomic_read(&sess->refcnt) == 0 &&
+		    (sess->state != SMB2_SESSION_VALID ||
+		     time_after(jiffies,
+			       sess->last_active + SMB2_SESSION_TIMEOUT))) {
 			xa_erase(&conn->sessions, sess->id);
 			hash_del(&sess->hlist);
 			ksmbd_session_destroy(sess);
@@ -268,8 +269,6 @@ struct ksmbd_session *ksmbd_session_lookup_slowpath(unsigned long long id)

 	down_read(&sessions_table_lock);
 	sess = __session_lookup(id);
-	if (sess)
-		sess->last_active = jiffies;
 	up_read(&sessions_table_lock);

 	return sess;
@@ -288,6 +287,22 @@ struct ksmbd_session *ksmbd_session_lookup_all(struct ksmbd_conn *conn,
 	return sess;
 }

+void ksmbd_user_session_get(struct ksmbd_session *sess)
+{
+	atomic_inc(&sess->refcnt);
+}
+
+void ksmbd_user_session_put(struct ksmbd_session *sess)
+{
+	if (!sess)
+		return;
+
+	if (atomic_read(&sess->refcnt) <= 0)
+		WARN_ON(1);
+	else
+		atomic_dec(&sess->refcnt);
+}
+
 struct preauth_session *ksmbd_preauth_session_alloc(struct ksmbd_conn *conn,
 						    u64 sess_id)
 {
@@ -356,6 +371,7 @@ static struct ksmbd_session *__session_create(int protocol)
 	xa_init(&sess->rpc_handle_list);
 	sess->sequence_number = 1;
 	rwlock_init(&sess->tree_conns_lock);
+	atomic_set(&sess->refcnt, 1);

 	ret = __init_smb2_session(sess);
 	if (ret)
--- a/fs/smb/server/mgmt/user_session.h
+++ b/fs/smb/server/mgmt/user_session.h
@@ -61,6 +61,8 @@ struct ksmbd_session {
 	struct ksmbd_file_table		file_table;
 	unsigned long			last_active;
 	rwlock_t			tree_conns_lock;
+
+	atomic_t			refcnt;
 };

 static inline int test_session_flag(struct ksmbd_session *sess, int bit)
@@ -101,4 +103,6 @@ void ksmbd_release_tree_conn_id(struct ksmbd_session *sess, int id);
 int ksmbd_session_rpc_open(struct ksmbd_session *sess, char *rpc_name);
 void ksmbd_session_rpc_close(struct ksmbd_session *sess, int id);
 int ksmbd_session_rpc_method(struct ksmbd_session *sess, int id);
+void ksmbd_user_session_get(struct ksmbd_session *sess);
+void ksmbd_user_session_put(struct ksmbd_session *sess);
 #endif /* __USER_SESSION_MANAGEMENT_H__ */
--- a/fs/smb/server/server.c
+++ b/fs/smb/server/server.c
@@ -238,6 +238,8 @@ static void __handle_ksmbd_work(struct ksmbd_work *work,
 	} while (is_chained == true);

 send:
+	if (work->sess)
+		ksmbd_user_session_put(work->sess);
 	if (work->tcon)
 		ksmbd_tree_connect_put(work->tcon);
 	smb3_preauth_hash_rsp(work);
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -604,8 +604,10 @@ int smb2_check_user_session(struct ksmbd_work *work)

 	/* Check for validity of user session */
 	work->sess = ksmbd_session_lookup_all(conn, sess_id);
-	if (work->sess)
+	if (work->sess) {
+		ksmbd_user_session_get(work->sess);
 		return 1;
+	}
 	ksmbd_debug(SMB, "Invalid user session, Uid %llu\n", sess_id);
 	return -ENOENT;
 }
@@ -1759,6 +1761,7 @@ int smb2_sess_setup(struct ksmbd_work *work)
 		}

 		conn->binding = true;
+		ksmbd_user_session_get(sess);
 	} else if ((conn->dialect < SMB30_PROT_ID ||
 		    server_conf.flags & KSMBD_GLOBAL_FLAG_SMB3_MULTICHANNEL) &&
 		   (req->Flags & SMB2_SESSION_REQ_FLAG_BINDING)) {
@@ -1785,6 +1788,7 @@ int smb2_sess_setup(struct ksmbd_work *work)
 		}

 		conn->binding = false;
+		ksmbd_user_session_get(sess);
 	}
 	work->sess = sess;

@@ -2240,7 +2244,9 @@ int smb2_session_logoff(struct ksmbd_work *work)
 	}

 	ksmbd_destroy_file_table(&sess->file_table);
+	down_write(&conn->session_lock);
 	sess->state = SMB2_SESSION_EXPIRED;
+	up_write(&conn->session_lock);

 	ksmbd_free_user(sess->user);
 	sess->user = NULL;
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -39,26 +39,13 @@
 static int udf_readdir(struct file *file, struct dir_context *ctx)
 {
 	struct inode *dir = file_inode(file);
-	struct udf_inode_info *iinfo = UDF_I(dir);
-	struct udf_fileident_bh fibh = { .sbh = NULL, .ebh = NULL};
-	struct fileIdentDesc *fi = NULL;
-	struct fileIdentDesc cfi;
-	udf_pblk_t block, iblock;
 	loff_t nf_pos, emit_pos = 0;
 	int flen;
-	unsigned char *fname = NULL, *copy_name = NULL;
-	unsigned char *nameptr;
-	uint16_t liu;
-	uint8_t lfi;
-	loff_t size = udf_ext0_offset(dir) + dir->i_size;
-	struct buffer_head *tmp, *bha[16];
-	struct kernel_lb_addr eloc;
-	uint32_t elen;
-	sector_t offset;
-	int i, num, ret = 0;
-	struct extent_position epos = { NULL, 0, {0, 0} };
+	unsigned char *fname = NULL;
+	int ret = 0;
 	struct super_block *sb = dir->i_sb;
 	bool pos_valid = false;
+	struct udf_fileident_iter iter;

 	if (ctx->pos == 0) {
 		if (!dir_emit_dot(file, ctx))
@@ -66,7 +53,7 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 		ctx->pos = 1;
 	}
 	nf_pos = (ctx->pos - 1) << 2;
-	if (nf_pos >= size)
+	if (nf_pos >= dir->i_size)
 		goto out;

 	/*
@@ -90,138 +77,57 @@ static int udf_readdir(struct file *file, struct dir_context *ctx)
 		goto out;
 	}

-	if (nf_pos == 0)
-		nf_pos = udf_ext0_offset(dir);
-
-	fibh.soffset = fibh.eoffset = nf_pos & (sb->s_blocksize - 1);
-	if (iinfo->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
-		if (inode_bmap(dir, nf_pos >> sb->s_blocksize_bits,
-		    &epos, &eloc, &elen, &offset)
-		    != (EXT_RECORDED_ALLOCATED >> 30)) {
-			ret = -ENOENT;
-			goto out;
-		}
-		block = udf_get_lb_pblock(sb, &eloc, offset);
-		if ((++offset << sb->s_blocksize_bits) < elen) {
-			if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
-				epos.offset -= sizeof(struct short_ad);
-			else if (iinfo->i_alloc_type ==
-					ICBTAG_FLAG_AD_LONG)
-				epos.offset -= sizeof(struct long_ad);
-		} else {
-			offset = 0;
-		}
-
-		if (!(fibh.sbh = fibh.ebh = udf_tread(sb, block))) {
-			ret = -EIO;
-			goto out;
-		}
-
-		if (!(offset & ((16 >> (sb->s_blocksize_bits - 9)) - 1))) {
-			i = 16 >> (sb->s_blocksize_bits - 9);
-			if (i + offset > (elen >> sb->s_blocksize_bits))
-				i = (elen >> sb->s_blocksize_bits) - offset;
-			for (num = 0; i > 0; i--) {
-				block = udf_get_lb_pblock(sb, &eloc, offset + i);
-				tmp = udf_tgetblk(sb, block);
-				if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
-					bha[num++] = tmp;
-				else
-					brelse(tmp);
-			}
-			if (num) {
-				bh_readahead_batch(num, bha, REQ_RAHEAD);
-				for (i = 0; i < num; i++)
-					brelse(bha[i]);
-			}
-		}
-	}
-
-	while (nf_pos < size) {
+	for (ret = udf_fiiter_init(&iter, dir, nf_pos);
+	     !ret && iter.pos < dir->i_size;
+	     ret = udf_fiiter_advance(&iter)) {
 		struct kernel_lb_addr tloc;
-		loff_t cur_pos = nf_pos;
+		udf_pblk_t iblock;

-		/* Update file position only if we got past the current one */
-		if (nf_pos >= emit_pos) {
-			ctx->pos = (nf_pos >> 2) + 1;
-			pos_valid = true;
-		}
-
-		fi = udf_fileident_read(dir, &nf_pos, &fibh, &cfi, &epos, &eloc,
-					&elen, &offset);
-		if (!fi)
-			goto out;
 		/* Still not at offset where user asked us to read from? */
-		if (cur_pos < emit_pos)
+		if (iter.pos < emit_pos)
 			continue;

-		liu = le16_to_cpu(cfi.lengthOfImpUse);
-		lfi = cfi.lengthFileIdent;
+		/* Update file position only if we got past the current one */
+		pos_valid = true;
+		ctx->pos = (iter.pos >> 2) + 1;

-		if (fibh.sbh == fibh.ebh) {
-			nameptr = udf_get_fi_ident(fi);
-		} else {
-			int poffset;	/* Unpaded ending offset */
-
-			poffset = fibh.soffset + sizeof(struct fileIdentDesc) + liu + lfi;
-
-			if (poffset >= lfi) {
-				nameptr = (char *)(fibh.ebh->b_data + poffset - lfi);
-			} else {
-				if (!copy_name) {
-					copy_name = kmalloc(UDF_NAME_LEN,
-							    GFP_NOFS);
-					if (!copy_name) {
-						ret = -ENOMEM;
-						goto out;
-					}
-				}
-				nameptr = copy_name;
-				memcpy(nameptr, udf_get_fi_ident(fi),
-				       lfi - poffset);
-				memcpy(nameptr + lfi - poffset,
-				       fibh.ebh->b_data, poffset);
-			}
-		}
-
-		if ((cfi.fileCharacteristics & FID_FILE_CHAR_DELETED) != 0) {
+		if (iter.fi.fileCharacteristics & FID_FILE_CHAR_DELETED) {
 			if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNDELETE))
 				continue;
 		}

-		if ((cfi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) != 0) {
+		if (iter.fi.fileCharacteristics & FID_FILE_CHAR_HIDDEN) {
 			if (!UDF_QUERY_FLAG(sb, UDF_FLAG_UNHIDE))
 				continue;
 		}

-		if (cfi.fileCharacteristics & FID_FILE_CHAR_PARENT) {
+		if (iter.fi.fileCharacteristics & FID_FILE_CHAR_PARENT) {
 			if (!dir_emit_dotdot(file, ctx))
-				goto out;
+				goto out_iter;
 			continue;
 		}

-		flen = udf_get_filename(sb, nameptr, lfi, fname, UDF_NAME_LEN);
+		flen = udf_get_filename(sb, iter.name,
+				iter.fi.lengthFileIdent, fname, UDF_NAME_LEN);
 		if (flen < 0)
 			continue;

-		tloc = lelb_to_cpu(cfi.icb.extLocation);
+		tloc = lelb_to_cpu(iter.fi.icb.extLocation);
 		iblock = udf_get_lb_pblock(sb, &tloc, 0);
 		if (!dir_emit(ctx, fname, flen, iblock, DT_UNKNOWN))
-			goto out;
-	} /* end while */
-
-	ctx->pos = (nf_pos >> 2) + 1;
-	pos_valid = true;
+			goto out_iter;
+	}

+	if (!ret) {
+		ctx->pos = (iter.pos >> 2) + 1;
+		pos_valid = true;
+	}
+out_iter:
+	udf_fiiter_release(&iter);
 out:
 	if (pos_valid)
 		file->f_version = inode_query_iversion(dir);
-	if (fibh.sbh != fibh.ebh)
-		brelse(fibh.ebh);
-	brelse(fibh.sbh);
-	brelse(epos.bh);
 	kfree(fname);
-	kfree(copy_name);

 	return ret;
 }
--- a/fs/udf/directory.c
+++ b/fs/udf/directory.c
@@ -17,183 +17,467 @@
 #include <linux/fs.h>
 #include <linux/string.h>
 #include <linux/bio.h>
+#include <linux/crc-itu-t.h>
+#include <linux/iversion.h>

-struct fileIdentDesc *udf_fileident_read(struct inode *dir, loff_t *nf_pos,
-					 struct udf_fileident_bh *fibh,
-					 struct fileIdentDesc *cfi,
-					 struct extent_position *epos,
-					 struct kernel_lb_addr *eloc, uint32_t *elen,
-					 sector_t *offset)
+static int udf_verify_fi(struct udf_fileident_iter *iter)
 {
-	struct fileIdentDesc *fi;
-	int i, num;
-	udf_pblk_t block;
-	struct buffer_head *tmp, *bha[16];
-	struct udf_inode_info *iinfo = UDF_I(dir);
+	unsigned int len;

-	fibh->soffset = fibh->eoffset;
-
-	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
-		fi = udf_get_fileident(iinfo->i_data -
-				       (iinfo->i_efe ?
-					sizeof(struct extendedFileEntry) :
-					sizeof(struct fileEntry)),
-				       dir->i_sb->s_blocksize,
-				       &(fibh->eoffset));
-		if (!fi)
-			return NULL;
-
-		*nf_pos += fibh->eoffset - fibh->soffset;
-
-		memcpy((uint8_t *)cfi, (uint8_t *)fi,
-		       sizeof(struct fileIdentDesc));
-
-		return fi;
+	if (iter->fi.descTag.tagIdent != cpu_to_le16(TAG_IDENT_FID)) {
+		udf_err(iter->dir->i_sb,
+			"directory (ino %lu) has entry at pos %llu with incorrect tag %x\n",
+			iter->dir->i_ino, (unsigned long long)iter->pos,
+			le16_to_cpu(iter->fi.descTag.tagIdent));
+		return -EFSCORRUPTED;
 	}
-
-	if (fibh->eoffset == dir->i_sb->s_blocksize) {
-		uint32_t lextoffset = epos->offset;
-		unsigned char blocksize_bits = dir->i_sb->s_blocksize_bits;
-
-		if (udf_next_aext(dir, epos, eloc, elen, 1) !=
-		    (EXT_RECORDED_ALLOCATED >> 30))
-			return NULL;
-
-		block = udf_get_lb_pblock(dir->i_sb, eloc, *offset);
-
-		(*offset)++;
-
-		if ((*offset << blocksize_bits) >= *elen)
-			*offset = 0;
-		else
-			epos->offset = lextoffset;
-
-		brelse(fibh->sbh);
-		fibh->sbh = fibh->ebh = udf_tread(dir->i_sb, block);
-		if (!fibh->sbh)
-			return NULL;
-		fibh->soffset = fibh->eoffset = 0;
-
-		if (!(*offset & ((16 >> (blocksize_bits - 9)) - 1))) {
-			i = 16 >> (blocksize_bits - 9);
-			if (i + *offset > (*elen >> blocksize_bits))
-				i = (*elen >> blocksize_bits)-*offset;
-			for (num = 0; i > 0; i--) {
-				block = udf_get_lb_pblock(dir->i_sb, eloc,
-							  *offset + i);
-				tmp = udf_tgetblk(dir->i_sb, block);
-				if (tmp && !buffer_uptodate(tmp) &&
-						!buffer_locked(tmp))
-					bha[num++] = tmp;
-				else
-					brelse(tmp);
-			}
-			if (num) {
-				bh_readahead_batch(num, bha, REQ_RAHEAD);
-				for (i = 0; i < num; i++)
-					brelse(bha[i]);
-			}
-		}
-	} else if (fibh->sbh != fibh->ebh) {
-		brelse(fibh->sbh);
-		fibh->sbh = fibh->ebh;
+	len = udf_dir_entry_len(&iter->fi);
+	if (le16_to_cpu(iter->fi.lengthOfImpUse) & 3) {
+		udf_err(iter->dir->i_sb,
+			"directory (ino %lu) has entry at pos %llu with unaligned lenght of impUse field\n",
+			iter->dir->i_ino, (unsigned long long)iter->pos);
+		return -EFSCORRUPTED;
 	}
-
-	fi = udf_get_fileident(fibh->sbh->b_data, dir->i_sb->s_blocksize,
-			       &(fibh->eoffset));
-
-	if (!fi)
-		return NULL;
-
-	*nf_pos += fibh->eoffset - fibh->soffset;
-
-	if (fibh->eoffset <= dir->i_sb->s_blocksize) {
-		memcpy((uint8_t *)cfi, (uint8_t *)fi,
-		       sizeof(struct fileIdentDesc));
-	} else if (fibh->eoffset > dir->i_sb->s_blocksize) {
-		uint32_t lextoffset = epos->offset;
-
-		if (udf_next_aext(dir, epos, eloc, elen, 1) !=
-		    (EXT_RECORDED_ALLOCATED >> 30))
-			return NULL;
-
-		block = udf_get_lb_pblock(dir->i_sb, eloc, *offset);
-
-		(*offset)++;
-
-		if ((*offset << dir->i_sb->s_blocksize_bits) >= *elen)
-			*offset = 0;
-		else
-			epos->offset = lextoffset;
-
-		fibh->soffset -= dir->i_sb->s_blocksize;
-		fibh->eoffset -= dir->i_sb->s_blocksize;
-
-		fibh->ebh = udf_tread(dir->i_sb, block);
-		if (!fibh->ebh)
-			return NULL;
-
-		if (sizeof(struct fileIdentDesc) > -fibh->soffset) {
-			int fi_len;
-
-			memcpy((uint8_t *)cfi, (uint8_t *)fi, -fibh->soffset);
-			memcpy((uint8_t *)cfi - fibh->soffset,
-			       fibh->ebh->b_data,
-			       sizeof(struct fileIdentDesc) + fibh->soffset);
-
-			fi_len = udf_dir_entry_len(cfi);
-			*nf_pos += fi_len - (fibh->eoffset - fibh->soffset);
-			fibh->eoffset = fibh->soffset + fi_len;
-		} else {
-			memcpy((uint8_t *)cfi, (uint8_t *)fi,
-			       sizeof(struct fileIdentDesc));
-		}
+	/*
+	 * This is in fact allowed by the spec due to long impUse field but
+	 * we don't support it. If there is real media with this large impUse
+	 * field, support can be added.
+	 */
+	if (len > 1 << iter->dir->i_blkbits) {
+		udf_err(iter->dir->i_sb,
+			"directory (ino %lu) has too big (%u) entry at pos %llu\n",
+			iter->dir->i_ino, len, (unsigned long long)iter->pos);
+		return -EFSCORRUPTED;
 	}
-	/* Got last entry outside of dir size - fs is corrupted! */
-	if (*nf_pos > dir->i_size)
-		return NULL;
-	return fi;
+	if (iter->pos + len > iter->dir->i_size) {
+		udf_err(iter->dir->i_sb,
+			"directory (ino %lu) has entry past directory size at pos %llu\n",
+			iter->dir->i_ino, (unsigned long long)iter->pos);
+		return -EFSCORRUPTED;
+	}
+	if (udf_dir_entry_len(&iter->fi) !=
+	    sizeof(struct tag) + le16_to_cpu(iter->fi.descTag.descCRCLength)) {
+		udf_err(iter->dir->i_sb,
+			"directory (ino %lu) has entry where CRC length (%u) does not match entry length (%u)\n",
+			iter->dir->i_ino,
+			(unsigned)le16_to_cpu(iter->fi.descTag.descCRCLength),
+			(unsigned)(udf_dir_entry_len(&iter->fi) -
+							sizeof(struct tag)));
+		return -EFSCORRUPTED;
+	}
+	return 0;
 }

-struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize, int *offset)
+static int udf_copy_fi(struct udf_fileident_iter *iter)
 {
+	struct udf_inode_info *iinfo = UDF_I(iter->dir);
+	int blksize = 1 << iter->dir->i_blkbits;
+	int err, off, len, nameoff;
+
+	/* Skip copying when we are at EOF */
+	if (iter->pos >= iter->dir->i_size) {
+		iter->name = NULL;
+		return 0;
+	}
+	if (iter->dir->i_size < iter->pos + sizeof(struct fileIdentDesc)) {
+		udf_err(iter->dir->i_sb,
+			"directory (ino %lu) has entry straddling EOF\n",
+			iter->dir->i_ino);
+		return -EFSCORRUPTED;
+	}
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+		memcpy(&iter->fi, iinfo->i_data + iinfo->i_lenEAttr + iter->pos,
+		       sizeof(struct fileIdentDesc));
+		err = udf_verify_fi(iter);
+		if (err < 0)
+			return err;
+		iter->name = iinfo->i_data + iinfo->i_lenEAttr + iter->pos +
+			sizeof(struct fileIdentDesc) +
+			le16_to_cpu(iter->fi.lengthOfImpUse);
+		return 0;
+	}
+
+	off = iter->pos & (blksize - 1);
+	len = min_t(int, sizeof(struct fileIdentDesc), blksize - off);
+	memcpy(&iter->fi, iter->bh[0]->b_data + off, len);
+	if (len < sizeof(struct fileIdentDesc))
+		memcpy((char *)(&iter->fi) + len, iter->bh[1]->b_data,
+		       sizeof(struct fileIdentDesc) - len);
+	err = udf_verify_fi(iter);
+	if (err < 0)
+		return err;
+
+	/* Handle directory entry name */
+	nameoff = off + sizeof(struct fileIdentDesc) +
+				le16_to_cpu(iter->fi.lengthOfImpUse);
+	if (off + udf_dir_entry_len(&iter->fi) <= blksize) {
+		iter->name = iter->bh[0]->b_data + nameoff;
+	} else if (nameoff >= blksize) {
+		iter->name = iter->bh[1]->b_data + (nameoff - blksize);
+	} else {
+		iter->name = iter->namebuf;
+		len = blksize - nameoff;
+		memcpy(iter->name, iter->bh[0]->b_data + nameoff, len);
+		memcpy(iter->name + len, iter->bh[1]->b_data,
+		       iter->fi.lengthFileIdent - len);
+	}
+	return 0;
+}
+
+/* Readahead 8k once we are at 8k boundary */
+static void udf_readahead_dir(struct udf_fileident_iter *iter)
+{
+	unsigned int ralen = 16 >> (iter->dir->i_blkbits - 9);
+	struct buffer_head *tmp, *bha[16];
+	int i, num;
+	udf_pblk_t blk;
+
+	if (iter->loffset & (ralen - 1))
+		return;
+
+	if (iter->loffset + ralen > (iter->elen >> iter->dir->i_blkbits))
+		ralen = (iter->elen >> iter->dir->i_blkbits) - iter->loffset;
+	num = 0;
+	for (i = 0; i < ralen; i++) {
+		blk = udf_get_lb_pblock(iter->dir->i_sb, &iter->eloc,
+					iter->loffset + i);
+		tmp = udf_tgetblk(iter->dir->i_sb, blk);
+		if (tmp && !buffer_uptodate(tmp) && !buffer_locked(tmp))
+			bha[num++] = tmp;
+		else
+			brelse(tmp);
+	}
+	if (num) {
+		bh_readahead_batch(num, bha, REQ_RAHEAD);
+		for (i = 0; i < num; i++)
+			brelse(bha[i]);
+	}
+}
+
+static struct buffer_head *udf_fiiter_bread_blk(struct udf_fileident_iter *iter)
+{
+	udf_pblk_t blk;
+
+	udf_readahead_dir(iter);
+	blk = udf_get_lb_pblock(iter->dir->i_sb, &iter->eloc, iter->loffset);
+	return udf_tread(iter->dir->i_sb, blk);
+}
+
+/*
+ * Updates loffset to point to next directory block; eloc, elen & epos are
+ * updated if we need to traverse to the next extent as well.
+ */
+static int udf_fiiter_advance_blk(struct udf_fileident_iter *iter)
+{
+	iter->loffset++;
+	if (iter->loffset < iter->elen >> iter->dir->i_blkbits)
+		return 0;
+
+	iter->loffset = 0;
+	if (udf_next_aext(iter->dir, &iter->epos, &iter->eloc, &iter->elen, 1)
+			!= (EXT_RECORDED_ALLOCATED >> 30)) {
+		if (iter->pos == iter->dir->i_size) {
+			iter->elen = 0;
+			return 0;
+		}
+		udf_err(iter->dir->i_sb,
+			"extent after position %llu not allocated in directory (ino %lu)\n",
+			(unsigned long long)iter->pos, iter->dir->i_ino);
+		return -EFSCORRUPTED;
+	}
+	return 0;
+}
+
+static int udf_fiiter_load_bhs(struct udf_fileident_iter *iter)
+{
+	int blksize = 1 << iter->dir->i_blkbits;
+	int off = iter->pos & (blksize - 1);
+	int err;
 	struct fileIdentDesc *fi;
-	int lengthThisIdent;
-	uint8_t *ptr;
-	int padlen;

-	if ((!buffer) || (!offset)) {
-		udf_debug("invalidparms, buffer=%p, offset=%p\n",
-			  buffer, offset);
-		return NULL;
+	/* Is there any further extent we can map from? */
+	if (!iter->bh[0] && iter->elen) {
+		iter->bh[0] = udf_fiiter_bread_blk(iter);
+		if (!iter->bh[0]) {
+			err = -ENOMEM;
+			goto out_brelse;
+		}
+		if (!buffer_uptodate(iter->bh[0])) {
+			err = -EIO;
+			goto out_brelse;
+		}
+	}
+	/* There's no next block so we are done */
+	if (iter->pos >= iter->dir->i_size)
+		return 0;
+	/* Need to fetch next block as well? */
+	if (off + sizeof(struct fileIdentDesc) > blksize)
+		goto fetch_next;
+	fi = (struct fileIdentDesc *)(iter->bh[0]->b_data + off);
+	/* Need to fetch next block to get name? */
+	if (off + udf_dir_entry_len(fi) > blksize) {
+fetch_next:
+		udf_fiiter_advance_blk(iter);
+		iter->bh[1] = udf_fiiter_bread_blk(iter);
+		if (!iter->bh[1]) {
+			err = -ENOMEM;
+			goto out_brelse;
+		}
+		if (!buffer_uptodate(iter->bh[1])) {
+			err = -EIO;
+			goto out_brelse;
+		}
+	}
+	return 0;
+out_brelse:
+	brelse(iter->bh[0]);
+	brelse(iter->bh[1]);
+	iter->bh[0] = iter->bh[1] = NULL;
+	return err;
+}
+
+int udf_fiiter_init(struct udf_fileident_iter *iter, struct inode *dir,
+		    loff_t pos)
+{
+	struct udf_inode_info *iinfo = UDF_I(dir);
+	int err = 0;
+
+	iter->dir = dir;
+	iter->bh[0] = iter->bh[1] = NULL;
+	iter->pos = pos;
+	iter->elen = 0;
+	iter->epos.bh = NULL;
+	iter->name = NULL;
+	/*
+	 * When directory is verified, we don't expect directory iteration to
+	 * fail and it can be difficult to undo without corrupting filesystem.
+	 * So just do not allow memory allocation failures here.
+	 */
+	iter->namebuf = kmalloc(UDF_NAME_LEN_CS0, GFP_KERNEL | __GFP_NOFAIL);
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+		err = udf_copy_fi(iter);
+		goto out;
 	}

-	ptr = buffer;
-
-	if ((*offset > 0) && (*offset < bufsize))
-		ptr += *offset;
-	fi = (struct fileIdentDesc *)ptr;
-	if (fi->descTag.tagIdent != cpu_to_le16(TAG_IDENT_FID)) {
-		udf_debug("0x%x != TAG_IDENT_FID\n",
-			  le16_to_cpu(fi->descTag.tagIdent));
-		udf_debug("offset: %d sizeof: %lu bufsize: %d\n",
-			  *offset, (unsigned long)sizeof(struct fileIdentDesc),
-			  bufsize);
-		return NULL;
+	if (inode_bmap(dir, iter->pos >> dir->i_blkbits, &iter->epos,
+		       &iter->eloc, &iter->elen, &iter->loffset) !=
+	    (EXT_RECORDED_ALLOCATED >> 30)) {
+		if (pos == dir->i_size)
+			return 0;
+		udf_err(dir->i_sb,
+			"position %llu not allocated in directory (ino %lu)\n",
+			(unsigned long long)pos, dir->i_ino);
+		err = -EFSCORRUPTED;
+		goto out;
 	}
-	if ((*offset + sizeof(struct fileIdentDesc)) > bufsize)
-		lengthThisIdent = sizeof(struct fileIdentDesc);
-	else
-		lengthThisIdent = sizeof(struct fileIdentDesc) +
-			fi->lengthFileIdent + le16_to_cpu(fi->lengthOfImpUse);
+	err = udf_fiiter_load_bhs(iter);
+	if (err < 0)
+		goto out;
+	err = udf_copy_fi(iter);
+out:
+	if (err < 0)
+		udf_fiiter_release(iter);
+	return err;
+}

-	/* we need to figure padding, too! */
-	padlen = lengthThisIdent % UDF_NAME_PAD;
-	if (padlen)
-		lengthThisIdent += (UDF_NAME_PAD - padlen);
-	*offset = *offset + lengthThisIdent;
+int udf_fiiter_advance(struct udf_fileident_iter *iter)
+{
+	unsigned int oldoff, len;
+	int blksize = 1 << iter->dir->i_blkbits;
+	int err;

-	return fi;
+	oldoff = iter->pos & (blksize - 1);
+	len = udf_dir_entry_len(&iter->fi);
+	iter->pos += len;
+	if (UDF_I(iter->dir)->i_alloc_type != ICBTAG_FLAG_AD_IN_ICB) {
+		if (oldoff + len >= blksize) {
+			brelse(iter->bh[0]);
+			iter->bh[0] = NULL;
+			/* Next block already loaded? */
+			if (iter->bh[1]) {
+				iter->bh[0] = iter->bh[1];
+				iter->bh[1] = NULL;
+			} else {
+				udf_fiiter_advance_blk(iter);
+			}
+		}
+		err = udf_fiiter_load_bhs(iter);
+		if (err < 0)
+			return err;
+	}
+	return udf_copy_fi(iter);
+}
+
+void udf_fiiter_release(struct udf_fileident_iter *iter)
+{
+	iter->dir = NULL;
+	brelse(iter->bh[0]);
+	brelse(iter->bh[1]);
+	iter->bh[0] = iter->bh[1] = NULL;
+	kfree(iter->namebuf);
+	iter->namebuf = NULL;
+}
+
+static void udf_copy_to_bufs(void *buf1, int len1, void *buf2, int len2,
+			     int off, void *src, int len)
+{
+	int copy;
+
+	if (off >= len1) {
+		off -= len1;
+	} else {
+		copy = min(off + len, len1) - off;
+		memcpy(buf1 + off, src, copy);
+		src += copy;
+		len -= copy;
+		off = 0;
+	}
+	if (len > 0) {
+		if (WARN_ON_ONCE(off + len > len2 || !buf2))
+			return;
+		memcpy(buf2 + off, src, len);
+	}
+}
+
+static uint16_t udf_crc_fi_bufs(void *buf1, int len1, void *buf2, int len2,
+				int off, int len)
+{
+	int copy;
+	uint16_t crc = 0;
+
+	if (off >= len1) {
+		off -= len1;
+	} else {
+		copy = min(off + len, len1) - off;
+		crc = crc_itu_t(crc, buf1 + off, copy);
+		len -= copy;
+		off = 0;
+	}
+	if (len > 0) {
+		if (WARN_ON_ONCE(off + len > len2 || !buf2))
+			return 0;
+		crc = crc_itu_t(crc, buf2 + off, len);
+	}
+	return crc;
+}
+
+static void udf_copy_fi_to_bufs(char *buf1, int len1, char *buf2, int len2,
+				int off, struct fileIdentDesc *fi,
+				uint8_t *impuse, uint8_t *name)
+{
+	uint16_t crc;
+	int fioff = off;
+	int crcoff = off + sizeof(struct tag);
+	unsigned int crclen = udf_dir_entry_len(fi) - sizeof(struct tag);
+
+	udf_copy_to_bufs(buf1, len1, buf2, len2, off, fi,
+			 sizeof(struct fileIdentDesc));
+	off += sizeof(struct fileIdentDesc);
+	if (impuse)
+		udf_copy_to_bufs(buf1, len1, buf2, len2, off, impuse,
+				 le16_to_cpu(fi->lengthOfImpUse));
+	off += le16_to_cpu(fi->lengthOfImpUse);
+	if (name)
+		udf_copy_to_bufs(buf1, len1, buf2, len2, off, name,
+				 fi->lengthFileIdent);
+
+	crc = udf_crc_fi_bufs(buf1, len1, buf2, len2, crcoff, crclen);
+	fi->descTag.descCRC = cpu_to_le16(crc);
+	fi->descTag.descCRCLength = cpu_to_le16(crclen);
+	fi->descTag.tagChecksum = udf_tag_checksum(&fi->descTag);
+
+	udf_copy_to_bufs(buf1, len1, buf2, len2, fioff, fi, sizeof(struct tag));
+}
+
+void udf_fiiter_write_fi(struct udf_fileident_iter *iter, uint8_t *impuse)
+{
+	struct udf_inode_info *iinfo = UDF_I(iter->dir);
+	void *buf1, *buf2 = NULL;
+	int len1, len2 = 0, off;
+	int blksize = 1 << iter->dir->i_blkbits;
+
+	off = iter->pos & (blksize - 1);
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+		buf1 = iinfo->i_data + iinfo->i_lenEAttr;
+		len1 = iter->dir->i_size;
+	} else {
+		buf1 = iter->bh[0]->b_data;
+		len1 = blksize;
+		if (iter->bh[1]) {
+			buf2 = iter->bh[1]->b_data;
+			len2 = blksize;
+		}
+	}
+
+	udf_copy_fi_to_bufs(buf1, len1, buf2, len2, off, &iter->fi, impuse,
+			    iter->name == iter->namebuf ? iter->name : NULL);
+
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB) {
+		mark_inode_dirty(iter->dir);
+	} else {
+		mark_buffer_dirty_inode(iter->bh[0], iter->dir);
+		if (iter->bh[1])
+			mark_buffer_dirty_inode(iter->bh[1], iter->dir);
+	}
+	inode_inc_iversion(iter->dir);
+}
+
+void udf_fiiter_update_elen(struct udf_fileident_iter *iter, uint32_t new_elen)
+{
+	struct udf_inode_info *iinfo = UDF_I(iter->dir);
+	int diff = new_elen - iter->elen;
+
+	/* Skip update when we already went past the last extent */
+	if (!iter->elen)
+		return;
+	iter->elen = new_elen;
+	if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_SHORT)
+		iter->epos.offset -= sizeof(struct short_ad);
+	else if (iinfo->i_alloc_type == ICBTAG_FLAG_AD_LONG)
+		iter->epos.offset -= sizeof(struct long_ad);
+	udf_write_aext(iter->dir, &iter->epos, &iter->eloc, iter->elen, 1);
+	iinfo->i_lenExtents += diff;
+	mark_inode_dirty(iter->dir);
+}
+
+/* Append new block to directory. @iter is expected to point at EOF */
+int udf_fiiter_append_blk(struct udf_fileident_iter *iter)
+{
+	struct udf_inode_info *iinfo = UDF_I(iter->dir);
+	int blksize = 1 << iter->dir->i_blkbits;
+	struct buffer_head *bh;
+	sector_t block;
+	uint32_t old_elen = iter->elen;
+	int err;
+
+	if (WARN_ON_ONCE(iinfo->i_alloc_type == ICBTAG_FLAG_AD_IN_ICB))
+		return -EINVAL;
+
+	/* Round up last extent in the file */
+	udf_fiiter_update_elen(iter, ALIGN(iter->elen, blksize));
+
+	/* Allocate new block and refresh mapping information */
+	block = iinfo->i_lenExtents >> iter->dir->i_blkbits;
+	bh = udf_bread(iter->dir, block, 1, &err);
+	if (!bh) {
+		udf_fiiter_update_elen(iter, old_elen);
+		return err;
+	}
+	if (inode_bmap(iter->dir, block, &iter->epos, &iter->eloc, &iter->elen,
+		       &iter->loffset) != (EXT_RECORDED_ALLOCATED >> 30)) {
+		udf_err(iter->dir->i_sb,
+			"block %llu not allocated in directory (ino %lu)\n",
+			(unsigned long long)block, iter->dir->i_ino);
+		return -EFSCORRUPTED;
+	}
+	if (!(iter->pos & (blksize - 1))) {
+		brelse(iter->bh[0]);
+		iter->bh[0] = bh;
+	} else {
+		iter->bh[1] = bh;
+	}
+	return 0;
 }

 struct short_ad *udf_get_fileshortad(uint8_t *ptr, int maxoffset, uint32_t *offset,
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -325,96 +325,6 @@ int udf_expand_file_adinicb(struct inode *inode)
 	return err;
 }

-struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
-					    udf_pblk_t *block, int *err)
-{
-	udf_pblk_t newblock;
-	struct buffer_head *dbh = NULL;
-	struct kernel_lb_addr eloc;
-	uint8_t alloctype;
-	struct extent_position epos;
-
-	struct udf_fileident_bh sfibh, dfibh;
-	loff_t f_pos = udf_ext0_offset(inode);
-	int size = udf_ext0_offset(inode) + inode->i_size;
-	struct fileIdentDesc cfi, *sfi, *dfi;
-	struct udf_inode_info *iinfo = UDF_I(inode);
-
-	if (UDF_QUERY_FLAG(inode->i_sb, UDF_FLAG_USE_SHORT_AD))
-		alloctype = ICBTAG_FLAG_AD_SHORT;
-	else
-		alloctype = ICBTAG_FLAG_AD_LONG;
-
-	if (!inode->i_size) {
-		iinfo->i_alloc_type = alloctype;
-		mark_inode_dirty(inode);
-		return NULL;
-	}
-
-	/* alloc block, and copy data to it */
-	*block = udf_new_block(inode->i_sb, inode,
-			       iinfo->i_location.partitionReferenceNum,
-			       iinfo->i_location.logicalBlockNum, err);
-	if (!(*block))
-		return NULL;
-	newblock = udf_get_pblock(inode->i_sb, *block,
-				  iinfo->i_location.partitionReferenceNum,
-				0);
-	if (!newblock)
-		return NULL;
-	dbh = udf_tgetblk(inode->i_sb, newblock);
-	if (!dbh)
-		return NULL;
-	lock_buffer(dbh);
-	memset(dbh->b_data, 0x00, inode->i_sb->s_blocksize);
-	set_buffer_uptodate(dbh);
-	unlock_buffer(dbh);
-	mark_buffer_dirty_inode(dbh, inode);
-
-	sfibh.soffset = sfibh.eoffset =
-			f_pos & (inode->i_sb->s_blocksize - 1);
-	sfibh.sbh = sfibh.ebh = NULL;
-	dfibh.soffset = dfibh.eoffset = 0;
-	dfibh.sbh = dfibh.ebh = dbh;
-	while (f_pos < size) {
-		iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
-		sfi = udf_fileident_read(inode, &f_pos, &sfibh, &cfi, NULL,
-					 NULL, NULL, NULL);
-		if (!sfi) {
-			brelse(dbh);
-			return NULL;
-		}
-		iinfo->i_alloc_type = alloctype;
-		sfi->descTag.tagLocation = cpu_to_le32(*block);
-		dfibh.soffset = dfibh.eoffset;
-		dfibh.eoffset += (sfibh.eoffset - sfibh.soffset);
-		dfi = (struct fileIdentDesc *)(dbh->b_data + dfibh.soffset);
-		if (udf_write_fi(inode, sfi, dfi, &dfibh, sfi->impUse,
-				 udf_get_fi_ident(sfi))) {
-			iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
-			brelse(dbh);
-			return NULL;
-		}
-	}
-	mark_buffer_dirty_inode(dbh, inode);
-
-	memset(iinfo->i_data + iinfo->i_lenEAttr, 0, iinfo->i_lenAlloc);
-	iinfo->i_lenAlloc = 0;
-	eloc.logicalBlockNum = *block;
-	eloc.partitionReferenceNum =
-				iinfo->i_location.partitionReferenceNum;
-	iinfo->i_lenExtents = inode->i_size;
-	epos.bh = NULL;
-	epos.block = iinfo->i_location;
-	epos.offset = udf_file_entry_alloc_offset(inode);
-	udf_add_aext(inode, &epos, &eloc, inode->i_size, 0);
-	/* UniqueID stuff */
-
-	brelse(epos.bh);
-	mark_inode_dirty(inode);
-	return dbh;
-}
-
 static int udf_get_block(struct inode *inode, sector_t block,
 			 struct buffer_head *bh_result, int create)
 {
--- a/fs/udf/namei.c
+++ b/fs/udf/namei.c
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -86,11 +86,22 @@ extern const struct address_space_operations udf_aops;
 extern const struct address_space_operations udf_adinicb_aops;
 extern const struct address_space_operations udf_symlink_aops;

-struct udf_fileident_bh {
-	struct buffer_head *sbh;
-	struct buffer_head *ebh;
-	int soffset;
-	int eoffset;
+struct udf_fileident_iter {
+	struct inode *dir;		/* Directory we are working with */
+	loff_t pos;			/* Logical position in a dir */
+	struct buffer_head *bh[2];	/* Buffer containing 'pos' and possibly
+					 * next buffer if entry straddles
+					 * blocks */
+	struct kernel_lb_addr eloc;	/* Start of extent containing 'pos' */
+	uint32_t elen;			/* Length of extent containing 'pos' */
+	sector_t loffset;		/* Block offset of 'pos' within above
+					 * extent */
+	struct extent_position epos;	/* Position after the above extent */
+	struct fileIdentDesc fi;	/* Copied directory entry */
+	uint8_t *name;			/* Pointer to entry name */
+	uint8_t *namebuf;		/* Storage for entry name in case
+					 * the name is split between two blocks
+					 */
 };

 struct udf_vds_record {
@@ -121,19 +132,12 @@ struct inode *udf_find_metadata_inode_efe(struct super_block *sb,
 					u32 meta_file_loc, u32 partition_num);

 /* namei.c */
-extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,
-			struct fileIdentDesc *, struct udf_fileident_bh *,
-			uint8_t *, uint8_t *);
 static inline unsigned int udf_dir_entry_len(struct fileIdentDesc *cfi)
 {
 	return ALIGN(sizeof(struct fileIdentDesc) +
 		le16_to_cpu(cfi->lengthOfImpUse) + cfi->lengthFileIdent,
 		UDF_NAME_PAD);
 }
-static inline uint8_t *udf_get_fi_ident(struct fileIdentDesc *fi)
-{
-	return ((uint8_t *)(fi + 1)) + le16_to_cpu(fi->lengthOfImpUse);
-}

 /* file.c */
 extern long udf_ioctl(struct file *, unsigned int, unsigned long);
@@ -151,8 +155,6 @@ static inline struct inode *udf_iget(struct super_block *sb,
 	return __udf_iget(sb, ino, false);
 }
 extern int udf_expand_file_adinicb(struct inode *);
-extern struct buffer_head *udf_expand_dir_adinicb(struct inode *inode,
-						  udf_pblk_t *block, int *err);
 extern struct buffer_head *udf_bread(struct inode *inode, udf_pblk_t block,
 				      int create, int *err);
 extern int udf_setsize(struct inode *, loff_t);
@@ -243,14 +245,13 @@ extern udf_pblk_t udf_new_block(struct super_block *sb, struct inode *inode,
 				 uint16_t partition, uint32_t goal, int *err);

 /* directory.c */
-extern struct fileIdentDesc *udf_fileident_read(struct inode *, loff_t *,
-						struct udf_fileident_bh *,
-						struct fileIdentDesc *,
-						struct extent_position *,
-						struct kernel_lb_addr *, uint32_t *,
-						sector_t *);
-extern struct fileIdentDesc *udf_get_fileident(void *buffer, int bufsize,
-					       int *offset);
+int udf_fiiter_init(struct udf_fileident_iter *iter, struct inode *dir,
+		    loff_t pos);
+int udf_fiiter_advance(struct udf_fileident_iter *iter);
+void udf_fiiter_release(struct udf_fileident_iter *iter);
+void udf_fiiter_write_fi(struct udf_fileident_iter *iter, uint8_t *impuse);
+void udf_fiiter_update_elen(struct udf_fileident_iter *iter, uint32_t new_elen);
+int udf_fiiter_append_blk(struct udf_fileident_iter *iter);
 extern struct long_ad *udf_get_filelongad(uint8_t *, int, uint32_t *, int);
 extern struct short_ad *udf_get_fileshortad(uint8_t *, int, uint32_t *, int);

--- a/include/linux/fsl/enetc_mdio.h
+++ b/include/linux/fsl/enetc_mdio.h
@@ -48,7 +48,8 @@ static inline int enetc_mdio_read(struct mii_bus *bus, int phy_id, int regnum)
 static inline int enetc_mdio_write(struct mii_bus *bus, int phy_id, int regnum,
 				   u16 value)
 { return -EINVAL; }
-struct enetc_hw *enetc_hw_alloc(struct device *dev, void __iomem *port_regs)
+static inline struct enetc_hw *enetc_hw_alloc(struct device *dev,
+					      void __iomem *port_regs)
 { return ERR_PTR(-EINVAL); }

 #endif
--- a/include/linux/irqchip/arm-gic-v4.h
+++ b/include/linux/irqchip/arm-gic-v4.h
@@ -58,10 +58,12 @@ struct its_vpe {
 				bool	enabled;
 				bool	group;
 			}			sgi_config[16];
-			atomic_t vmapp_count;
 		};
 	};

+	/* Track the VPE being mapped */
+	atomic_t vmapp_count;
+
 	/*
 	 * Ensures mutual exclusion between affinity setting of the
 	 * vPE and vLPI operations using vpe->col_idx.
--- a/io_uring/io_uring.h
+++ b/io_uring/io_uring.h
@@ -235,7 +235,14 @@ static inline bool io_sqring_full(struct io_ring_ctx *ctx)
 {
 	struct io_rings *r = ctx->rings;

-	return READ_ONCE(r->sq.tail) - ctx->cached_sq_head == ctx->sq_entries;
+	/*
+	 * SQPOLL must use the actual sqring head, as using the cached_sq_head
+	 * is race prone if the SQPOLL thread has grabbed entries but not yet
+	 * committed them to the ring. For !SQPOLL, this doesn't matter, but
+	 * since this helper is just used for SQPOLL sqring waits (or POLLOUT),
+	 * just read the actual sqring head unconditionally.
+	 */
+	return READ_ONCE(r->sq.tail) - READ_ONCE(r->sq.head) == ctx->sq_entries;
 }

 static inline unsigned int io_sqring_entries(struct io_ring_ctx *ctx)
--- a/kernel/time/posix-clock.c
+++ b/kernel/time/posix-clock.c
@@ -299,6 +299,9 @@ static int pc_clock_settime(clockid_t id, const struct timespec64 *ts)
 		goto out;
 	}

+	if (!timespec64_valid_strict(ts))
+		return -EINVAL;
+
 	if (cd.clk->ops.clock_settime)
 		err = cd.clk->ops.clock_settime(cd.clk, ts);
 	else
--- a/lib/maple_tree.c
+++ b/lib/maple_tree.c
@@ -2254,6 +2254,8 @@ static inline struct maple_enode *mte_node_or_none(struct maple_enode *enode)

 /*
 * mas_wr_node_walk() - Find the correct offset for the index in the @mas.
+ *                      If @mas->index cannot be found within the containing
+ *                      node, we traverse to the last entry in the node.
 * @wr_mas: The maple write state
 *
 * Uses mas_slot_locked() and does not need to worry about dead nodes.
@@ -3706,7 +3708,7 @@ static bool mas_wr_walk(struct ma_wr_state *wr_mas)
 	return true;
 }

-static bool mas_wr_walk_index(struct ma_wr_state *wr_mas)
+static void mas_wr_walk_index(struct ma_wr_state *wr_mas)
 {
 	struct ma_state *mas = wr_mas->mas;

@@ -3715,11 +3717,9 @@ static bool mas_wr_walk_index(struct ma_wr_state *wr_mas)
 		wr_mas->content = mas_slot_locked(mas, wr_mas->slots,
 						  mas->offset);
 		if (ma_is_leaf(wr_mas->type))
-			return true;
+			return;
 		mas_wr_walk_traverse(wr_mas);
-
 	}
-	return true;
 }
 /*
 * mas_extend_spanning_null() - Extend a store of a %NULL to include surrounding %NULLs.
@@ -3955,8 +3955,8 @@ static inline int mas_wr_spanning_store(struct ma_wr_state *wr_mas)
 	memset(&b_node, 0, sizeof(struct maple_big_node));
 	/* Copy l_mas and store the value in b_node. */
 	mas_store_b_node(&l_wr_mas, &b_node, l_wr_mas.node_end);
-	/* Copy r_mas into b_node. */
-	if (r_mas.offset <= r_wr_mas.node_end)
+	/* Copy r_mas into b_node if there is anything to copy. */
+	if (r_mas.max > r_mas.last)
 		mas_mab_cp(&r_mas, r_mas.offset, r_wr_mas.node_end,
 			   &b_node, b_node.b_end + 1);
 	else
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -2014,7 +2014,7 @@ static int unuse_mm(struct mm_struct *mm, unsigned int type)

 	mmap_read_lock(mm);
 	for_each_vma(vmi, vma) {
-		if (vma->anon_vma) {
+		if (vma->anon_vma && !is_vm_hugetlb_page(vma)) {
 			ret = unuse_vma(vma, type);
 			if (ret)
 				break;
--- a/net/bluetooth/af_bluetooth.c
+++ b/net/bluetooth/af_bluetooth.c
@@ -797,11 +797,14 @@ cleanup_sysfs:
 	bt_sysfs_cleanup();
 cleanup_led:
 	bt_leds_cleanup();
+	debugfs_remove_recursive(bt_debugfs);
 	return err;
 }

 static void __exit bt_exit(void)
 {
+	iso_exit();
+
 	mgmt_exit();

 	sco_exit();
--- a/net/bluetooth/iso.c
+++ b/net/bluetooth/iso.c
@@ -1837,13 +1837,9 @@ int iso_init(void)

 	hci_register_cb(&iso_cb);

-	if (IS_ERR_OR_NULL(bt_debugfs))
-		return 0;
-
-	if (!iso_debugfs) {
+	if (!IS_ERR_OR_NULL(bt_debugfs))
 		iso_debugfs = debugfs_create_file("iso", 0444, bt_debugfs,
 						  NULL, &iso_debugfs_fops);
-	}

 	iso_inited = true;

--- a/net/devlink/leftover.c
+++ b/net/devlink/leftover.c
@@ -289,15 +289,13 @@ void devl_unlock(struct devlink *devlink)
 EXPORT_SYMBOL_GPL(devl_unlock);

 static struct devlink *
-devlinks_xa_find_get(struct net *net, unsigned long *indexp, xa_mark_t filter,
-		     void * (*xa_find_fn)(struct xarray *, unsigned long *,
-					  unsigned long, xa_mark_t))
+devlinks_xa_find_get(struct net *net, unsigned long *indexp)
 {
-	struct devlink *devlink;
+	struct devlink *devlink = NULL;

 	rcu_read_lock();
 retry:
-	devlink = xa_find_fn(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED);
+	devlink = xa_find(&devlinks, indexp, ULONG_MAX, DEVLINK_REGISTERED);
 	if (!devlink)
 		goto unlock;

@@ -306,46 +304,28 @@ retry:
 	 * This prevents live-lock of devlink_unregister() wait for completion.
 	 */
 	if (xa_get_mark(&devlinks, *indexp, DEVLINK_UNREGISTERING))
-		goto retry;
+		goto next;

-	/* For a possible retry, the xa_find_after() should be always used */
-	xa_find_fn = xa_find_after;
 	if (!devlink_try_get(devlink))
-		goto retry;
+		goto next;
 	if (!net_eq(devlink_net(devlink), net)) {
 		devlink_put(devlink);
-		goto retry;
+		goto next;
 	}
 unlock:
 	rcu_read_unlock();
 	return devlink;
-}
-
-static struct devlink *devlinks_xa_find_get_first(struct net *net,
-						  unsigned long *indexp,
-						  xa_mark_t filter)
-{
-	return devlinks_xa_find_get(net, indexp, filter, xa_find);
-}
-
-static struct devlink *devlinks_xa_find_get_next(struct net *net,
-						 unsigned long *indexp,
-						 xa_mark_t filter)
-{
-	return devlinks_xa_find_get(net, indexp, filter, xa_find_after);
+next:
+	(*indexp)++;
+	goto retry;
 }

 /* Iterate over devlink pointers which were possible to get reference to.
 * devlink_put() needs to be called for each iterated devlink pointer
 * in loop body in order to release the reference.
 */
-#define devlinks_xa_for_each_get(net, index, devlink, filter)			\
-	for (index = 0,								\
-	     devlink = devlinks_xa_find_get_first(net, &index, filter);		\
-	     devlink; devlink = devlinks_xa_find_get_next(net, &index, filter))
-
 #define devlinks_xa_for_each_registered_get(net, index, devlink)		\
-	devlinks_xa_for_each_get(net, index, devlink, DEVLINK_REGISTERED)
+	for (index = 0; (devlink = devlinks_xa_find_get(net, &index)); index++)

 static struct devlink *devlink_get_from_attrs(struct net *net,
 					      struct nlattr **attrs)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -2310,9 +2310,7 @@ static bool tcp_can_coalesce_send_queue_head(struct sock *sk, int len)
 		if (len <= skb->len)
 			break;

-		if (unlikely(TCP_SKB_CB(skb)->eor) ||
-		    tcp_has_tx_tstamp(skb) ||
-		    !skb_pure_zcopy_same(skb, next))
+		if (tcp_has_tx_tstamp(skb) || !tcp_skb_can_collapse(skb, next))
 			return false;

 		len -= skb->len;
--- a/net/mptcp/mib.c
+++ b/net/mptcp/mib.c
@@ -15,6 +15,7 @@ static const struct snmp_mib mptcp_snmp_list[] = {
 	SNMP_MIB_ITEM("MPCapableACKRX", MPTCP_MIB_MPCAPABLEPASSIVEACK),
 	SNMP_MIB_ITEM("MPCapableFallbackACK", MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK),
 	SNMP_MIB_ITEM("MPCapableFallbackSYNACK", MPTCP_MIB_MPCAPABLEACTIVEFALLBACK),
+	SNMP_MIB_ITEM("MPCapableEndpAttempt", MPTCP_MIB_MPCAPABLEENDPATTEMPT),
 	SNMP_MIB_ITEM("MPFallbackTokenInit", MPTCP_MIB_TOKENFALLBACKINIT),
 	SNMP_MIB_ITEM("MPTCPRetrans", MPTCP_MIB_RETRANSSEGS),
 	SNMP_MIB_ITEM("MPJoinNoTokenFound", MPTCP_MIB_JOINNOTOKEN),
--- a/net/mptcp/mib.h
+++ b/net/mptcp/mib.h
@@ -8,6 +8,7 @@ enum linux_mptcp_mib_field {
 	MPTCP_MIB_MPCAPABLEPASSIVEACK,	/* Received third ACK with MP_CAPABLE */
 	MPTCP_MIB_MPCAPABLEPASSIVEFALLBACK,/* Server-side fallback during 3-way handshake */
 	MPTCP_MIB_MPCAPABLEACTIVEFALLBACK, /* Client-side fallback during 3-way handshake */
+	MPTCP_MIB_MPCAPABLEENDPATTEMPT,	/* Prohibited MPC to port-based endp */
 	MPTCP_MIB_TOKENFALLBACKINIT,	/* Could not init/allocate token */
 	MPTCP_MIB_RETRANSSEGS,		/* Segments retransmitted at the MPTCP-level */
 	MPTCP_MIB_JOINNOTOKEN,		/* Received MP_JOIN but the token was not found */
--- a/net/mptcp/pm_netlink.c
+++ b/net/mptcp/pm_netlink.c
@@ -877,12 +877,12 @@ static void mptcp_pm_nl_rm_addr_or_subflow(struct mptcp_sock *msk,
 				 i, rm_id, id, remote_id, msk->mpc_endpoint_id);
 			spin_unlock_bh(&msk->pm.lock);
 			mptcp_subflow_shutdown(sk, ssk, how);
+			removed |= subflow->request_join;

 			/* the following takes care of updating the subflows counter */
 			mptcp_close_ssk(sk, ssk, subflow);
 			spin_lock_bh(&msk->pm.lock);

-			removed |= subflow->request_join;
 			if (rm_type == MPTCP_MIB_RMSUBFLOW)
 				__MPTCP_INC_STATS(sock_net(sk), rm_type);
 		}
@@ -1111,6 +1111,7 @@ static int mptcp_pm_nl_create_listen_socket(struct sock *sk,
 	}

 	inet_sk_state_store(newsk, TCP_LISTEN);
+	WRITE_ONCE(mptcp_subflow_ctx(ssock->sk)->pm_listener, true);
 	err = kernel_listen(ssock, backlog);
 	if (err) {
 		pr_warn("kernel_listen error, err=%d", err);
--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -483,6 +483,7 @@ struct mptcp_subflow_context {
 		close_event_done : 1,       /* has done the post-closed part */
 		__unused : 9;
 	enum mptcp_data_avail data_avail;
+	bool	pm_listener;	    /* a listener managed by the kernel PM? */
 	u32	remote_nonce;
 	u64	thmac;
 	u32	local_nonce;
--- a/net/mptcp/subflow.c
+++ b/net/mptcp/subflow.c
@@ -131,6 +131,13 @@ static void subflow_add_reset_reason(struct sk_buff *skb, u8 reason)
 	}
 }

+static int subflow_reset_req_endp(struct request_sock *req, struct sk_buff *skb)
+{
+	SUBFLOW_REQ_INC_STATS(req, MPTCP_MIB_MPCAPABLEENDPATTEMPT);
+	subflow_add_reset_reason(skb, MPTCP_RST_EPROHIBIT);
+	return -EPERM;
+}
+
 /* Init mptcp request socket.
 *
 * Returns an error code if a JOIN has failed and a TCP reset
@@ -162,6 +169,8 @@ static int subflow_check_req(struct request_sock *req,
 	if (opt_mp_capable) {
 		SUBFLOW_REQ_INC_STATS(req, MPTCP_MIB_MPCAPABLEPASSIVE);

+		if (unlikely(listener->pm_listener))
+			return subflow_reset_req_endp(req, skb);
 		if (opt_mp_join)
 			return 0;
 	} else if (opt_mp_join) {
@@ -169,6 +178,8 @@ static int subflow_check_req(struct request_sock *req,

 		if (mp_opt.backup)
 			SUBFLOW_REQ_INC_STATS(req, MPTCP_MIB_JOINSYNBACKUPRX);
+	} else if (unlikely(listener->pm_listener)) {
+		return subflow_reset_req_endp(req, skb);
 	}

 	if (opt_mp_capable && listener->request_mptcp) {
--- a/sound/pci/hda/patch_conexant.c
+++ b/sound/pci/hda/patch_conexant.c
@@ -307,6 +307,7 @@ enum {
 	CXT_FIXUP_HP_SPECTRE,
 	CXT_FIXUP_HP_GATE_MIC,
 	CXT_FIXUP_MUTE_LED_GPIO,
+	CXT_FIXUP_HP_ELITEONE_OUT_DIS,
 	CXT_FIXUP_HP_ZBOOK_MUTE_LED,
 	CXT_FIXUP_HEADSET_MIC,
 	CXT_FIXUP_HP_MIC_NO_PRESENCE,
@@ -324,6 +325,19 @@ static void cxt_fixup_stereo_dmic(struct hda_codec *codec,
 	spec->gen.inv_dmic_split = 1;
 }

+/* fix widget control pin settings */
+static void cxt_fixup_update_pinctl(struct hda_codec *codec,
+				   const struct hda_fixup *fix, int action)
+{
+	if (action == HDA_FIXUP_ACT_PROBE) {
+		/* Unset OUT_EN for this Node pin, leaving only HP_EN.
+		 * This is the value stored in the codec register after
+		 * the correct initialization of the previous windows boot.
+		 */
+		snd_hda_set_pin_ctl_cache(codec, 0x1d, AC_PINCTL_HP_EN);
+	}
+}
+
 static void cxt5066_increase_mic_boost(struct hda_codec *codec,
 				   const struct hda_fixup *fix, int action)
 {
@@ -975,6 +989,10 @@ static const struct hda_fixup cxt_fixups[] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cxt_fixup_mute_led_gpio,
 	},
+	[CXT_FIXUP_HP_ELITEONE_OUT_DIS] = {
+		.type = HDA_FIXUP_FUNC,
+		.v.func = cxt_fixup_update_pinctl,
+	},
 	[CXT_FIXUP_HP_ZBOOK_MUTE_LED] = {
 		.type = HDA_FIXUP_FUNC,
 		.v.func = cxt_fixup_hp_zbook_mute_led,
@@ -1065,6 +1083,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = {
 	SND_PCI_QUIRK(0x103c, 0x83b2, "HP EliteBook 840 G5", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x83b3, "HP EliteBook 830 G5", CXT_FIXUP_HP_DOCK),
 	SND_PCI_QUIRK(0x103c, 0x83d3, "HP ProBook 640 G4", CXT_FIXUP_HP_DOCK),
+	SND_PCI_QUIRK(0x103c, 0x83e5, "HP EliteOne 1000 G2", CXT_FIXUP_HP_ELITEONE_OUT_DIS),
 	SND_PCI_QUIRK(0x103c, 0x8402, "HP ProBook 645 G4", CXT_FIXUP_MUTE_LED_GPIO),
 	SND_PCI_QUIRK(0x103c, 0x8427, "HP ZBook Studio G5", CXT_FIXUP_HP_ZBOOK_MUTE_LED),
 	SND_PCI_QUIRK(0x103c, 0x844f, "HP ZBook Studio G5", CXT_FIXUP_HP_ZBOOK_MUTE_LED),