Merge tag 'ASB-2024-12-05_12-5.10' of https://android.googlesource.com/kernel/common into android13-5.10-waipio

https://source.android.com/docs/security/bulletin/2024-12-01

* tag 'ASB-2024-12-05_12-5.10' of https://android.googlesource.com/kernel/common: (649 commits)
  ANDROID: ABI: update symbol list for honor
  ANDROID: fs: add vendor hook to collect IO statistics
  ANDROID: tools/objtool: Pass CFLAGS to libsubcmd build via EXTRA_CFLAGS
  UPSTREAM: HID: core: zero-initialize the report buffer
  ANDROID: libsubcmd: Hoist iterator variable declarations in parse_options_subcommand()
  ANDROID: mm: Fix SPF-aware fast-mremap
  UPSTREAM: net/sched: stop qdisc_tree_reduce_backlog on TC_H_ROOT
  UPSTREAM: f2fs: support SEEK_DATA and SEEK_HOLE for compression files
  Revert "genetlink: hold RCU in genlmsg_mcast()"
  ANDROID: add file for recording allowed ABI breaks
  ANDROID: GKI: update symbol list for honor
  ANDROID: Allow vendor modules perform more operations on memleak detect
  UPSTREAM: drm/omap: fix misleading indentation in pixinc()
  UPSTREAM: bitfield: build kunit tests without structleak plugin
  BACKPORT: FROMGIT: binder: add delivered_freeze to debugfs output
  BACKPORT: FROMGIT: binder: fix memleak of proc->delivered_freeze
  FROMGIT: binder: allow freeze notification for dead nodes
  FROMGIT: binder: fix BINDER_WORK_CLEAR_FREEZE_NOTIFICATION debug logs
  FROMGIT: binder: fix BINDER_WORK_FROZEN_BINDER debug logs
  BACKPORT: FROMGIT: binder: fix freeze UAF in binder_release_work()
  ...

 Conflicts:
	android/abi_gki_aarch64.xml
	net/qrtr/af_qrtr.c

Change-Id: I4f416cf6c90e71fbdc0bea2c76a620842a2a2288

.gitignore

@@ -125,7 +125,6 @@ GTAGS
 # id-utils files
 ID
 
-*.orig
 *~
 \#*#
 

Documentation/admin-guide/kernel-parameters.txt

@@ -4165,6 +4165,16 @@
 	printk.time=	Show timing data prefixed to each printk message line
 			Format: <bool>  (1/Y/y=enable, 0/N/n=disable)
 
+	proc_mem.force_override= [KNL]
+			Format: {always | ptrace | never}
+			Traditionally /proc/pid/mem allows memory permissions to be
+			overridden without restrictions. This option may be set to
+			restrict that. Can be one of:
+			- 'always': traditional behavior always allows mem overrides.
+			- 'ptrace': only allow mem overrides for active ptracers.
+			- 'never':  never allow mem overrides.
+			If not specified, default is the CONFIG_PROC_MEM_* choice.
+
 	processor.max_cstate=	[HW,ACPI]
 			Limit processor to maximum C-state
 			max_cstate=9 overrides any DMI blacklist limit.

Documentation/arm64/silicon-errata.rst

@@ -112,6 +112,8 @@ stable kernels.
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A710     | #3324338        | ARM64_ERRATUM_3194386       |
 +----------------+-----------------+-----------------+-----------------------------+
+| ARM            | Cortex-A715     | #3456084        | ARM64_ERRATUM_3194386       |
++----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A720     | #3456091        | ARM64_ERRATUM_3194386       |
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Cortex-A725     | #3456106        | ARM64_ERRATUM_3194386       |
@@ -140,6 +142,8 @@ stable kernels.
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Neoverse-N2     | #3324339        | ARM64_ERRATUM_3194386       |
 +----------------+-----------------+-----------------+-----------------------------+
+| ARM            | Neoverse-N3     | #3456111        | ARM64_ERRATUM_3194386       |
++----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Neoverse-V1     | #3324341        | ARM64_ERRATUM_3194386       |
 +----------------+-----------------+-----------------+-----------------------------+
 | ARM            | Neoverse-V2     | #3324336        | ARM64_ERRATUM_3194386       |

Documentation/driver-api/ipmi.rst

@@ -519,7 +519,7 @@ at module load time (for a module) with::
 	alerts_broken
 
 The addresses are normal I2C addresses.  The adapter is the string
-name of the adapter, as shown in /sys/class/i2c-adapter/i2c-<n>/name.
+name of the adapter, as shown in /sys/bus/i2c/devices/i2c-<n>/name.
 It is *NOT* i2c-<n> itself.  Also, the comparison is done ignoring
 spaces, so if the name is "This is an I2C chip" you can say
 adapter_name=ThisisanI2cchip.  This is because it's hard to pass in

Makefile

@@ -1,7 +1,7 @@
 # SPDX-License-Identifier: GPL-2.0
 VERSION = 5
 PATCHLEVEL = 10
-SUBLEVEL = 226
+SUBLEVEL = 228
 EXTRAVERSION =
 NAME = Dare mighty things
 

android/abi_gki_aarch64.xml.allowed_breaks

@@ -0,0 +1,127 @@
+# How to use this file: http://go/approve-abi-break
+# ABI freeze commit: 870488eb0745645feff5bddfd44fe538660b9cf8
+
+type 'struct xhci_hcd' changed
+  member 'u64 android_kabi_reserved1' was removed
+  member 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; }; union { }; }' was added
+
+type 'struct xhci_hcd' changed
+  member changed from 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; } __UNIQUE_ID_android_kabi_hide315; union { }; }' to 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; }; union { }; }'
+    type changed from 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; } __UNIQUE_ID_android_kabi_hide315; union { }; }' to 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; }; union { }; }'
+      member 'struct { u64 android_kabi_reserved1; } __UNIQUE_ID_android_kabi_hide315' was removed
+      member 'struct { u64 android_kabi_reserved1; }' was added
+
+type 'struct spi_controller' changed
+  member changed from 'u8 unused_native_cs' to 's8 unused_native_cs'
+    type changed from 'u8' = '__u8' = 'unsigned char' to 's8' = '__s8' = 'signed char'
+      resolved type changed from 'unsigned char' to 'signed char'
+  member changed from 'u8 max_native_cs' to 's8 max_native_cs'
+    type changed from 'u8' = '__u8' = 'unsigned char' to 's8' = '__s8' = 'signed char'
+      resolved type changed from 'unsigned char' to 'signed char'
+
+type 'struct xhci_hcd' changed
+  member changed from 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; } __UNIQUE_ID_android_kabi_hide316; union { }; }' to 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; }; union { }; }'
+    type changed from 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; } __UNIQUE_ID_android_kabi_hide316; union { }; }' to 'union { struct xhci_vendor_ops* vendor_ops; struct { u64 android_kabi_reserved1; }; union { }; }'
+      member 'struct { u64 android_kabi_reserved1; } __UNIQUE_ID_android_kabi_hide316' was removed
+      member 'struct { u64 android_kabi_reserved1; }' was added
+
+type 'struct ehci_hcd' changed
+  member 'unsigned int is_aspeed' was added
+
+type 'struct fscrypt_mode' changed
+  byte size changed from 32 to 40
+  member 'int security_strength' was added
+  3 members ('int ivsize' .. 'enum blk_crypto_mode_num blk_crypto_mode') changed
+    offset changed by 32
+
+type 'struct sock' changed
+  member 'u64 android_kabi_reserved1' was removed
+  member 'union { spinlock_t sk_peer_lock; struct { u64 android_kabi_reserved1; }; union { }; }' was added
+
+type 'struct bpf_map' changed
+  member changed from 'u64 writecnt' to 'atomic64_t writecnt'
+    type changed from 'u64' = '__u64' = 'long long unsigned int' to 'atomic64_t' = 'struct { s64 counter; }'
+      resolved type changed from 'long long unsigned int' to 'struct { s64 counter; }'
+
+type 'struct fib_rules_ops' changed
+  member changed from 'bool(* suppress)(struct fib_rule*, struct fib_lookup_arg*)' to 'bool(* suppress)(struct fib_rule*, int, struct fib_lookup_arg*)'
+    type changed from 'bool(*)(struct fib_rule*, struct fib_lookup_arg*)' to 'bool(*)(struct fib_rule*, int, struct fib_lookup_arg*)'
+      pointed-to type changed from 'bool(struct fib_rule*, struct fib_lookup_arg*)' to 'bool(struct fib_rule*, int, struct fib_lookup_arg*)'
+        parameter 2 type changed from 'struct fib_lookup_arg*' to 'int'
+        parameter 3 of type 'struct fib_lookup_arg*' was added
+
+type 'struct snd_pcm_runtime' changed
+  byte size changed from 768 to 824
+  member 'struct mutex buffer_mutex' was added
+  member 'atomic_t buffer_accessing' was added
+
+type 'struct gpio_irq_chip' changed
+  member 'u64 android_kabi_reserved1' was removed
+  member 'union { bool initialized; struct { u64 android_kabi_reserved1; }; union { }; }' was added
+
+function symbol changed from 'int hex_to_bin(char)' to 'int hex_to_bin(unsigned char)'
+  type changed from 'int(char)' to 'int(unsigned char)'
+    parameter 1 type changed from 'char' to 'unsigned char'
+
+1 variable symbol(s) removed
+  'struct tracepoint __tracepoint_android_vh_record_percpu_rwsem_lock_starttime'
+
+1 function symbol(s) removed
+  'int __traceiter_android_vh_record_percpu_rwsem_lock_starttime(void*, struct task_struct*, unsigned long int)'
+
+type 'struct fscrypt_info' changed
+  member changed from 'struct key* ci_master_key' to 'struct fscrypt_master_key* ci_master_key'
+    type changed from 'struct key*' to 'struct fscrypt_master_key*'
+      pointed-to type changed from 'struct key' to 'struct fscrypt_master_key'
+
+type 'struct tcp_sock' changed
+  member 'u32 max_packets_seq' was removed
+  member 'u32 cwnd_usage_seq' was added
+
+type 'struct iphdr' changed
+  member '__be32 saddr' was removed
+  member '__be32 daddr' was removed
+  member 'union { struct { __be32 saddr; __be32 daddr; }; struct { __be32 saddr; __be32 daddr; } addrs; }' was added
+
+type 'struct super_block' changed
+  member changed from 'struct key* s_master_keys' to 'struct fscrypt_keyring* s_master_keys'
+    type changed from 'struct key*' to 'struct fscrypt_keyring*'
+      pointed-to type changed from 'struct key' to 'struct fscrypt_keyring'
+
+type 'struct sk_buff' changed
+  member 'u64 android_kabi_reserved1' was removed
+  member 'union { struct { __u8 scm_io_uring; __u8 android_kabi_reserved1_padding1; __u16 android_kabi_reserved1_padding2; __u32 android_kabi_reserved1_padding3; }; struct { u64 android_kabi_reserved1; }; union { }; }' was added
+
+type 'struct task_struct' changed
+  member 'u64 android_kabi_reserved1' was removed
+  member 'union { void* pf_io_worker; struct { u64 android_kabi_reserved1; }; union { }; }' was added
+
+type 'struct anon_vma' changed
+  byte size changed from 104 to 120
+  member 'unsigned long int num_children' was added
+  member 'unsigned long int num_active_vmas' was added
+
+function symbol changed from 'struct irq_domain* __irq_domain_add(struct fwnode_handle*, int, irq_hw_number_t, int, const struct irq_domain_ops*, void*)' to 'struct irq_domain* __irq_domain_add(struct fwnode_handle*, unsigned int, irq_hw_number_t, int, const struct irq_domain_ops*, void*)'
+  type changed from 'struct irq_domain*(struct fwnode_handle*, int, irq_hw_number_t, int, const struct irq_domain_ops*, void*)' to 'struct irq_domain*(struct fwnode_handle*, unsigned int, irq_hw_number_t, int, const struct irq_domain_ops*, void*)'
+    parameter 2 type changed from 'int' to 'unsigned int'
+
+function symbol changed from 'is_ashmem_file' to 'int is_ashmem_file(struct file*)'
+  CRC changed from 0x4bef6e5f to 0x94fc40b5
+
+type 'struct perf_event' changed
+  member 'unsigned int group_generation' was added
+
+type 'struct ipv6_devconf' changed
+  member 'u64 android_kabi_reserved1' was removed
+  member 'union { struct { __s32 accept_ra_min_lft; u32 padding; }; struct { u64 android_kabi_reserved1; }; union { }; }' was added
+
+type 'struct clk_core' changed
+  byte size changed from 248 to 264
+  member 'struct hlist_node rpm_node' was added
+  30 members ('struct device_node* of_node' .. 'struct kref ref') changed
+    offset changed by 128
+
+type 'enum binder_work_type' changed
+  enumerator 'BINDER_WORK_FROZEN_BINDER' (9) was added
+  ... 1 other enumerator(s) added
+

android/abi_gki_aarch64_honor

@@ -1,7 +1,13 @@
 [abi_symbol_list]
+  arch_vma_name
+  _vm_normal_page
+  pmd_clear_bad
+  __pmd_trans_huge_lock
   __traceiter_android_rvh_dma_buf_stats_teardown
   __traceiter_android_vh_tune_fault_around_bytes
+  __traceiter_android_vh_io_statistics
   __traceiter_android_vh_do_swap_page_spf
   __tracepoint_android_rvh_dma_buf_stats_teardown
   __tracepoint_android_vh_tune_fault_around_bytes
+  __tracepoint_android_vh_io_statistics
   __tracepoint_android_vh_do_swap_page_spf

android/abi_gki_aarch64_zebra

@@ -2,3 +2,5 @@
   __traceiter_android_vh_wakeup_bypass
   __tracepoint_android_vh_wakeup_bypass
   tty_termios_hw_change
+  usb_bus_idr
+  usb_bus_idr_lock

arch/arm/boot/dts/bcm2837-rpi-cm3-io3.dts

@@ -77,7 +77,7 @@ &gpio {
 };
 
 &hdmi {
-	hpd-gpios = <&expgpio 1 GPIO_ACTIVE_LOW>;
+	hpd-gpios = <&expgpio 0 GPIO_ACTIVE_LOW>;
 	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
 	status = "okay";
 };

arch/arm/boot/dts/imx7d-zii-rmu2.dts

@@ -350,7 +350,7 @@ MX7D_PAD_SD3_RESET_B__SD3_RESET_B	0x59
 
 &iomuxc_lpsr {
 	pinctrl_enet1_phy_interrupt: enet1phyinterruptgrp {
-		fsl,phy = <
+		fsl,pins = <
 			MX7D_PAD_LPSR_GPIO1_IO02__GPIO1_IO2	0x08
 		>;
 	};

arch/arm/boot/dts/sam9x60.dtsi

@@ -692,7 +692,7 @@ rtt: rtt@fffffe20 {
 				compatible = "microchip,sam9x60-rtt", "atmel,at91sam9260-rtt";
 				reg = <0xfffffe20 0x20>;
 				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
-				clocks = <&clk32k 0>;
+				clocks = <&clk32k 1>;
 			};
 
 			pit: timer@fffffe40 {
@@ -718,7 +718,7 @@ rtc: rtc@fffffea8 {
 				compatible = "microchip,sam9x60-rtc", "atmel,at91sam9x5-rtc";
 				reg = <0xfffffea8 0x100>;
 				interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
-				clocks = <&clk32k 0>;
+				clocks = <&clk32k 1>;
 			};
 
 			watchdog: watchdog@ffffff80 {

arch/arm/mach-realview/platsmp-dt.c

@@ -66,6 +66,7 @@ static void __init realview_smp_prepare_cpus(unsigned int max_cpus)
 		return;
 	}
 	map = syscon_node_to_regmap(np);
+	of_node_put(np);
 	if (IS_ERR(map)) {
 		pr_err("PLATSMP: No syscon regmap\n");
 		return;

arch/arm64/Kconfig

@@ -782,6 +782,7 @@ config ARM64_ERRATUM_3194386
 	  * ARM Cortex-A78C erratum 3324346
 	  * ARM Cortex-A78C erratum 3324347
 	  * ARM Cortex-A710 erratam 3324338
+	  * ARM Cortex-A715 errartum 3456084
 	  * ARM Cortex-A720 erratum 3456091
 	  * ARM Cortex-A725 erratum 3456106
 	  * ARM Cortex-X1 erratum 3324344
@@ -792,6 +793,7 @@ config ARM64_ERRATUM_3194386
 	  * ARM Cortex-X925 erratum 3324334
 	  * ARM Neoverse-N1 erratum 3324349
 	  * ARM Neoverse N2 erratum 3324339
+	  * ARM Neoverse-N3 erratum 3456111
 	  * ARM Neoverse-V1 erratum 3324341
 	  * ARM Neoverse V2 erratum 3324336
 	  * ARM Neoverse-V3 erratum 3312417

arch/arm64/Makefile

@@ -10,7 +10,7 @@
 #
 # Copyright (C) 1995-2001 by Russell King
 
-LDFLAGS_vmlinux	:=--no-undefined -X
+LDFLAGS_vmlinux	:=--no-undefined -X --pic-veneer
 
 ifeq ($(CONFIG_RELOCATABLE), y)
 # Pass --no-apply-dynamic-relocs to restore pre-binutils-2.27 behaviour

arch/arm64/boot/dts/rockchip/rk3399-pinebook-pro.dts

@@ -25,12 +25,12 @@ chosen {
 	backlight: edp-backlight {
 		compatible = "pwm-backlight";
 		power-supply = <&vcc_12v>;
-		pwms = <&pwm0 0 740740 0>;
+		pwms = <&pwm0 0 125000 0>;
 	};
 
 	bat: battery {
 		compatible = "simple-battery";
-		charge-full-design-microamp-hours = <9800000>;
+		charge-full-design-microamp-hours = <10000000>;
 		voltage-max-design-microvolt = <4350000>;
 		voltage-min-design-microvolt = <3000000>;
 	};

arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi

@@ -148,6 +148,22 @@ &emmc_phy {
 	drive-impedance-ohm = <33>;
 };
 
+&gpio3 {
+	/*
+	 * The Qseven BIOS_DISABLE signal on the RK3399-Q7 keeps the on-module
+	 * eMMC and SPI flash powered-down initially (in fact it keeps the
+	 * reset signal asserted). BIOS_DISABLE_OVERRIDE pin allows to override
+	 * that signal so that eMMC and SPI can be used regardless of the state
+	 * of the signal.
+	 */
+	bios-disable-override-hog {
+		gpios = <RK_PD5 GPIO_ACTIVE_LOW>;
+		gpio-hog;
+		line-name = "bios_disable_override";
+		output-high;
+	};
+};
+
 &gmac {
 	assigned-clocks = <&cru SCLK_RMII_SRC>;
 	assigned-clock-parents = <&clkin_gmac>;
@@ -437,9 +453,14 @@ &pcie_clkreqn_cpm {
 
 &pinctrl {
 	pinctrl-names = "default";
-	pinctrl-0 = <&q7_thermal_pin>;
+	pinctrl-0 = <&q7_thermal_pin &bios_disable_override_hog_pin>;
 
 	gpios {
+		bios_disable_override_hog_pin: bios-disable-override-hog-pin {
+			rockchip,pins =
+				<3 RK_PD5 RK_FUNC_GPIO &pcfg_pull_down>;
+		};
+
 		q7_thermal_pin: q7-thermal-pin {
 			rockchip,pins =
 				<0 RK_PA3 RK_FUNC_GPIO &pcfg_pull_up>;

arch/arm64/include/asm/cputype.h

@@ -81,6 +81,7 @@
 #define ARM_CPU_PART_CORTEX_A510	0xD46
 #define ARM_CPU_PART_CORTEX_A520	0xD80
 #define ARM_CPU_PART_CORTEX_A710	0xD47
+#define ARM_CPU_PART_CORTEX_A715	0xD4D
 #define ARM_CPU_PART_CORTEX_X2		0xD48
 #define ARM_CPU_PART_NEOVERSE_N2	0xD49
 #define ARM_CPU_PART_CORTEX_A78C	0xD4B
@@ -92,6 +93,7 @@
 #define ARM_CPU_PART_NEOVERSE_V3	0xD84
 #define ARM_CPU_PART_CORTEX_X925	0xD85
 #define ARM_CPU_PART_CORTEX_A725	0xD87
+#define ARM_CPU_PART_NEOVERSE_N3	0xD8E
 
 #define APM_CPU_PART_POTENZA		0x000
 
@@ -141,6 +143,7 @@
 #define MIDR_CORTEX_A510 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A510)
 #define MIDR_CORTEX_A520 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A520)
 #define MIDR_CORTEX_A710 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A710)
+#define MIDR_CORTEX_A715 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A715)
 #define MIDR_CORTEX_X2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X2)
 #define MIDR_NEOVERSE_N2 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N2)
 #define MIDR_CORTEX_A78C	MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A78C)
@@ -152,6 +155,7 @@
 #define MIDR_NEOVERSE_V3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_V3)
 #define MIDR_CORTEX_X925 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_X925)
 #define MIDR_CORTEX_A725 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_CORTEX_A725)
+#define MIDR_NEOVERSE_N3 MIDR_CPU_MODEL(ARM_CPU_IMP_ARM, ARM_CPU_PART_NEOVERSE_N3)
 #define MIDR_THUNDERX	MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX)
 #define MIDR_THUNDERX_81XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_81XX)
 #define MIDR_THUNDERX_83XX MIDR_CPU_MODEL(ARM_CPU_IMP_CAVIUM, CAVIUM_CPU_PART_THUNDERX_83XX)

arch/arm64/include/asm/uprobes.h

@@ -10,11 +10,9 @@
 #include <asm/insn.h>
 #include <asm/probes.h>
 
-#define MAX_UINSN_BYTES		AARCH64_INSN_SIZE
+#define UPROBE_SWBP_INSN	cpu_to_le32(BRK64_OPCODE_UPROBES)
-
-#define UPROBE_SWBP_INSN	BRK64_OPCODE_UPROBES
 #define UPROBE_SWBP_INSN_SIZE	AARCH64_INSN_SIZE
-#define UPROBE_XOL_SLOT_BYTES	MAX_UINSN_BYTES
+#define UPROBE_XOL_SLOT_BYTES	AARCH64_INSN_SIZE
 
 typedef u32 uprobe_opcode_t;
 
@@ -23,8 +21,8 @@ struct arch_uprobe_task {
 
 struct arch_uprobe {
 	union {
-		u8 insn[MAX_UINSN_BYTES];
+		__le32 insn;
-		u8 ixol[MAX_UINSN_BYTES];
+		__le32 ixol;
 	};
 	struct arch_probe_insn api;
 	bool simulate;

arch/arm64/kernel/cpu_errata.c

@@ -373,6 +373,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = {
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A78),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A78C),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A710),
+	MIDR_ALL_VERSIONS(MIDR_CORTEX_A715),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A720),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_A725),
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_X1),
@@ -383,6 +384,7 @@ static const struct midr_range erratum_spec_ssbs_list[] = {
 	MIDR_ALL_VERSIONS(MIDR_CORTEX_X925),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N1),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N2),
+	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_N3),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V1),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V2),
 	MIDR_ALL_VERSIONS(MIDR_NEOVERSE_V3),

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))

arch/arm64/kernel/probes/simulate-insn.c

@@ -170,17 +170,15 @@ 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 = addr + ldr_displacement(opcode);
-	load_addr = (u64 *) (addr + disp);
 
 	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);
 }
@@ -188,14 +186,12 @@ 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 = addr + ldr_displacement(opcode);
-	load_addr = (s32 *) (addr + disp);
 
-	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);
 }

arch/arm64/kernel/probes/uprobes.c

@@ -42,7 +42,7 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, struct mm_struct *mm,
 	else if (!IS_ALIGNED(addr, AARCH64_INSN_SIZE))
 		return -EINVAL;
 
-	insn = *(probe_opcode_t *)(&auprobe->insn[0]);
+	insn = le32_to_cpu(auprobe->insn);
 
 	switch (arm_probe_decode_insn(insn, &auprobe->api)) {
 	case INSN_REJECTED:
@@ -108,7 +108,7 @@ bool arch_uprobe_skip_sstep(struct arch_uprobe *auprobe, struct pt_regs *regs)
 	if (!auprobe->simulate)
 		return false;
 
-	insn = *(probe_opcode_t *)(&auprobe->insn[0]);
+	insn = le32_to_cpu(auprobe->insn);
 	addr = instruction_pointer(regs);
 
 	if (auprobe->api.handler)

arch/m68k/kernel/process.c

@@ -116,7 +116,7 @@ asmlinkage int m68k_clone(struct pt_regs *regs)
 {
 	/* regs will be equal to current_pt_regs() */
 	struct kernel_clone_args args = {
-		.flags		= regs->d1 & ~CSIGNAL,
+		.flags		= (u32)(regs->d1) & ~CSIGNAL,
 		.pidfd		= (int __user *)regs->d3,
 		.child_tid	= (int __user *)regs->d4,
 		.parent_tid	= (int __user *)regs->d3,

arch/microblaze/mm/init.c

@@ -245,11 +245,6 @@ asmlinkage void __init mmu_init(void)
 {
 	unsigned int kstart, ksize;
 
-	if (!memblock.reserved.cnt) {
-		pr_emerg("Error memory count\n");
-		machine_restart(NULL);
-	}
-
 	if ((u32) memblock.memory.regions[0].size < 0x400000) {
 		pr_emerg("Memory must be greater than 4MB\n");
 		machine_restart(NULL);

arch/parisc/kernel/entry.S

@@ -1071,8 +1071,7 @@ ENTRY_CFI(intr_save)		/* for os_hpmc */
 	STREG           %r16, PT_ISR(%r29)
 	STREG           %r17, PT_IOR(%r29)
 
-#if 0 && defined(CONFIG_64BIT)
+#if defined(CONFIG_64BIT)
-	/* Revisit when we have 64-bit code above 4Gb */
 	b,n		intr_save2
 
 skip_save_ior:
@@ -1080,8 +1079,7 @@ skip_save_ior:
 	 * need to adjust iasq/iaoq here in the same way we adjusted isr/ior
 	 * above.
 	 */
-	extrd,u,*	%r8,PSW_W_BIT,1,%r1
+	bb,COND(>=),n	%r8,PSW_W_BIT,intr_save2
-	cmpib,COND(=),n	1,%r1,intr_save2
 	LDREG		PT_IASQ0(%r29), %r16
 	LDREG		PT_IAOQ0(%r29), %r17
 	/* adjust iasq/iaoq */

arch/parisc/kernel/syscall.S

@@ -217,10 +217,10 @@ linux_gateway_entry:
 
 #ifdef CONFIG_64BIT
 	ldil	L%sys_call_table, %r1
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
-	addil	L%(sys_call_table64-sys_call_table), %r1
+	ldil	L%sys_call_table64, %r1
 	ldo	R%sys_call_table(%r1), %r19
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
 	ldo	R%sys_call_table64(%r1), %r19
 #else
 	load32	sys_call_table, %r19
@@ -355,10 +355,10 @@ tracesys_next:
 	extrd,u	%r19,63,1,%r2			/* W hidden in bottom bit */
 
 	ldil	L%sys_call_table, %r1
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
-	addil	L%(sys_call_table64-sys_call_table), %r1
+	ldil	L%sys_call_table64, %r1
 	ldo	R%sys_call_table(%r1), %r19
-	or,=	%r2,%r2,%r2
+	or,ev	%r2,%r2,%r2
 	ldo	R%sys_call_table64(%r1), %r19
 #else
 	load32	sys_call_table, %r19
@@ -931,6 +931,8 @@ ENTRY(sys_call_table)
 END(sys_call_table)
 
 #ifdef CONFIG_64BIT
+#undef __SYSCALL_WITH_COMPAT
+#define __SYSCALL_WITH_COMPAT(nr, native, compat)	__SYSCALL(nr, native)
 	.align 8
 ENTRY(sys_call_table64)
 #include <asm/syscall_table_64.h>    /* 64-bit native syscalls */

arch/powerpc/kernel/setup-common.c

@@ -908,6 +908,7 @@ void __init setup_arch(char **cmdline_p)
 	mem_topology_setup();
 	/* Set max_mapnr before paging_init() */
 	set_max_mapnr(max_pfn);
+	high_memory = (void *)__va(max_low_pfn * PAGE_SIZE);
 
 	/*
 	 * Release secondary cpus out of their spinloops at 0x60 now that

arch/powerpc/mm/mem.c

@@ -292,8 +292,6 @@ void __init mem_init(void)
 		swiotlb_init(0);
 #endif
 
-	high_memory = (void *) __va(max_low_pfn * PAGE_SIZE);
-
 	kasan_late_init();
 
 	memblock_free_all();

arch/powerpc/mm/numa.c

@@ -1177,6 +1177,9 @@ void __init mem_topology_setup(void)
 {
 	int cpu;
 
+	max_low_pfn = max_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
+	min_low_pfn = MEMORY_START >> PAGE_SHIFT;
+
 	/*
 	 * Linux/mm assumes node 0 to be online at boot. However this is not
 	 * true on PowerPC, where node 0 is similar to any other node, it
@@ -1221,9 +1224,6 @@ void __init initmem_init(void)
 {
 	int nid;
 
-	max_low_pfn = memblock_end_of_DRAM() >> PAGE_SHIFT;
-	max_pfn = max_low_pfn;
-
 	memblock_dump_all();
 
 	for_each_online_node(nid) {

arch/riscv/Kconfig

@@ -193,6 +193,11 @@ config GENERIC_HWEIGHT
 config FIX_EARLYCON_MEM
 	def_bool MMU
 
+config ILLEGAL_POINTER_VALUE
+	hex
+	default 0 if 32BIT
+	default 0xdead000000000000 if 64BIT
+
 config PGTABLE_LEVELS
 	int
 	default 3 if 64BIT

arch/riscv/kernel/perf_callchain.c

@@ -71,7 +71,7 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry,
 	perf_callchain_store(entry, regs->epc);
 
 	fp = user_backtrace(entry, fp, regs->ra);
-	while (fp && !(fp & 0x3) && entry->nr < entry->max_stack)
+	while (fp && !(fp & 0x7) && entry->nr < entry->max_stack)
 		fp = user_backtrace(entry, fp, 0);
 }
 

arch/s390/include/asm/facility.h

@@ -53,8 +53,10 @@ static inline int test_facility(unsigned long nr)
 	unsigned long facilities_als[] = { FACILITIES_ALS };
 
 	if (__builtin_constant_p(nr) && nr < sizeof(facilities_als) * 8) {
-		if (__test_facility(nr, &facilities_als))
+		if (__test_facility(nr, &facilities_als)) {
-			return 1;
+			if (!__is_defined(__DECOMPRESSOR))
+				return 1;
+		}
 	}
 	return __test_facility(nr, &S390_lowcore.stfle_fac_list);
 }

arch/s390/include/asm/perf_event.h

@@ -75,6 +75,7 @@ struct perf_sf_sde_regs {
 #define SAMPLE_FREQ_MODE(hwc)	(SAMPL_FLAGS(hwc) & PERF_CPUM_SF_FREQ_MODE)
 
 #define perf_arch_fetch_caller_regs(regs, __ip) do {			\
+	(regs)->psw.mask = 0;						\
 	(regs)->psw.addr = (__ip);					\
 	(regs)->gprs[15] = (unsigned long)__builtin_frame_address(0) -	\
 		offsetof(struct stack_frame, back_chain);		\

arch/s390/kernel/perf_cpum_sf.c

@@ -1432,7 +1432,7 @@ static int aux_output_begin(struct perf_output_handle *handle,
 	unsigned long head, base, offset;
 	struct hws_trailer_entry *te;
 
-	if (WARN_ON_ONCE(handle->head & ~PAGE_MASK))
+	if (handle->head & ~PAGE_MASK)
 		return -EINVAL;
 
 	aux->head = handle->head >> PAGE_SHIFT;
@@ -1613,7 +1613,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
 	unsigned long num_sdb;
 
 	aux = perf_get_aux(handle);
-	if (WARN_ON_ONCE(!aux))
+	if (!aux)
 		return;
 
 	/* Inform user space new data arrived */
@@ -1635,7 +1635,7 @@ static void hw_collect_aux(struct cpu_hw_sf *cpuhw)
 					    __func__);
 			break;
 		}
-		if (WARN_ON_ONCE(!aux))
+		if (!aux)
 			return;
 
 		/* Update head and alert_mark to new position */
@@ -1870,12 +1870,8 @@ static void cpumsf_pmu_start(struct perf_event *event, int flags)
 {
 	struct cpu_hw_sf *cpuhw = this_cpu_ptr(&cpu_hw_sf);
 
-	if (WARN_ON_ONCE(!(event->hw.state & PERF_HES_STOPPED)))
+	if (!(event->hw.state & PERF_HES_STOPPED))
 		return;
-
-	if (flags & PERF_EF_RELOAD)
-		WARN_ON_ONCE(!(event->hw.state & PERF_HES_UPTODATE));
-
 	perf_pmu_disable(event->pmu);
 	event->hw.state = 0;
 	cpuhw->lsctl.cs = 1;

arch/s390/kvm/diag.c

@@ -77,7 +77,7 @@ static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
 	vcpu->stat.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)

arch/s390/kvm/gaccess.c

@@ -794,46 +794,102 @@ static int low_address_protection_enabled(struct kvm_vcpu *vcpu,
 	return 1;
 }
 
-static int guest_page_range(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
+/**
-			    unsigned long *pages, unsigned long nr_pages,
+ * guest_range_to_gpas() - Calculate guest physical addresses of page fragments
-			    const union asce asce, enum gacc_mode mode)
+ * covering a logical range
+ * @vcpu: virtual cpu
+ * @ga: guest address, start of range
+ * @ar: access register
+ * @gpas: output argument, may be NULL
+ * @len: length of range in bytes
+ * @asce: address-space-control element to use for translation
+ * @mode: access mode
+ *
+ * Translate a logical range to a series of guest absolute addresses,
+ * such that the concatenation of page fragments starting at each gpa make up
+ * the whole range.
+ * The translation is performed as if done by the cpu for the given @asce, @ar,
+ * @mode and state of the @vcpu.
+ * If the translation causes an exception, its program interruption code is
+ * returned and the &struct kvm_s390_pgm_info pgm member of @vcpu is modified
+ * such that a subsequent call to kvm_s390_inject_prog_vcpu() will inject
+ * a correct exception into the guest.
+ * The resulting gpas are stored into @gpas, unless it is NULL.
+ *
+ * Note: All fragments except the first one start at the beginning of a page.
+ *	 When deriving the boundaries of a fragment from a gpa, all but the last
+ *	 fragment end at the end of the page.
+ *
+ * Return:
+ * * 0		- success
+ * * <0		- translation could not be performed, for example if  guest
+ *		  memory could not be accessed
+ * * >0		- an access exception occurred. In this case the returned value
+ *		  is the program interruption code and the contents of pgm may
+ *		  be used to inject an exception into the guest.
+ */
+static int guest_range_to_gpas(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar,
+			       unsigned long *gpas, unsigned long len,
+			       const union asce asce, enum gacc_mode mode)
 {
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
+	unsigned int offset = offset_in_page(ga);
+	unsigned int fragment_len;
 	int lap_enabled, rc = 0;
 	enum prot_type prot;
+	unsigned long gpa;
 
 	lap_enabled = low_address_protection_enabled(vcpu, asce);
-	while (nr_pages) {
+	while (min(PAGE_SIZE - offset, len) > 0) {
+		fragment_len = min(PAGE_SIZE - offset, len);
 		ga = kvm_s390_logical_to_effective(vcpu, ga);
 		if (mode == GACC_STORE && lap_enabled && is_low_address(ga))
 			return trans_exc(vcpu, PGM_PROTECTION, ga, ar, mode,
 					 PROT_TYPE_LA);
-		ga &= PAGE_MASK;
 		if (psw_bits(*psw).dat) {
-			rc = guest_translate(vcpu, ga, pages, asce, mode, &prot);
+			rc = guest_translate(vcpu, ga, &gpa, asce, mode, &prot);
 			if (rc < 0)
 				return rc;
 		} else {
-			*pages = kvm_s390_real_to_abs(vcpu, ga);
+			gpa = kvm_s390_real_to_abs(vcpu, ga);
-			if (kvm_is_error_gpa(vcpu->kvm, *pages))
+			if (kvm_is_error_gpa(vcpu->kvm, gpa))
 				rc = PGM_ADDRESSING;
 		}
 		if (rc)
 			return trans_exc(vcpu, rc, ga, ar, mode, prot);
-		ga += PAGE_SIZE;
+		if (gpas)
-		pages++;
+			*gpas++ = gpa;
-		nr_pages--;
+		offset = 0;
+		ga += fragment_len;
+		len -= fragment_len;
 	}
 	return 0;
 }
 
+static int access_guest_page(struct kvm *kvm, enum gacc_mode mode, gpa_t gpa,
+			     void *data, unsigned int len)
+{
+	const unsigned int offset = offset_in_page(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
+		rc = kvm_read_guest_page(kvm, gfn, data, offset, len);
+	return rc;
+}
+
 int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar, void *data,
 		 unsigned long len, enum gacc_mode mode)
 {
 	psw_t *psw = &vcpu->arch.sie_block->gpsw;
-	unsigned long _len, nr_pages, gpa, idx;
+	unsigned long nr_pages, idx;
-	unsigned long pages_array[2];
+	unsigned long gpa_array[2];
-	unsigned long *pages;
+	unsigned int fragment_len;
+	unsigned long *gpas;
 	int need_ipte_lock;
 	union asce asce;
 	int rc;
@@ -845,50 +901,45 @@ int access_guest(struct kvm_vcpu *vcpu, unsigned long ga, u8 ar, void *data,
 	if (rc)
 		return rc;
 	nr_pages = (((ga & ~PAGE_MASK) + len - 1) >> PAGE_SHIFT) + 1;
-	pages = pages_array;
+	gpas = gpa_array;
-	if (nr_pages > ARRAY_SIZE(pages_array))
+	if (nr_pages > ARRAY_SIZE(gpa_array))
-		pages = vmalloc(array_size(nr_pages, sizeof(unsigned long)));
+		gpas = vmalloc(array_size(nr_pages, sizeof(unsigned long)));
-	if (!pages)
+	if (!gpas)
 		return -ENOMEM;
 	need_ipte_lock = psw_bits(*psw).dat && !asce.r;
 	if (need_ipte_lock)
 		ipte_lock(vcpu);
-	rc = guest_page_range(vcpu, ga, ar, pages, nr_pages, asce, mode);
+	rc = guest_range_to_gpas(vcpu, ga, ar, gpas, len, asce, mode);
 	for (idx = 0; idx < nr_pages && !rc; idx++) {
-		gpa = *(pages + idx) + (ga & ~PAGE_MASK);
+		fragment_len = min(PAGE_SIZE - offset_in_page(gpas[idx]), len);
-		_len = min(PAGE_SIZE - (gpa & ~PAGE_MASK), len);
+		rc = access_guest_page(vcpu->kvm, mode, gpas[idx], data, fragment_len);
-		if (mode == GACC_STORE)
+		len -= fragment_len;
-			rc = kvm_write_guest(vcpu->kvm, gpa, data, _len);
+		data += fragment_len;
-		else
-			rc = kvm_read_guest(vcpu->kvm, gpa, data, _len);
-		len -= _len;
-		ga += _len;
-		data += _len;
 	}
 	if (need_ipte_lock)
 		ipte_unlock(vcpu);
-	if (nr_pages > ARRAY_SIZE(pages_array))
+	if (nr_pages > ARRAY_SIZE(gpa_array))
-		vfree(pages);
+		vfree(gpas);
 	return rc;
 }
 
 int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
 		      void *data, unsigned long len, enum gacc_mode mode)
 {
-	unsigned long _len, gpa;
+	unsigned int fragment_len;
+	unsigned long gpa;
 	int rc = 0;
 
 	while (len && !rc) {
 		gpa = kvm_s390_real_to_abs(vcpu, gra);
-		_len = min(PAGE_SIZE - (gpa & ~PAGE_MASK), len);
+		fragment_len = min(PAGE_SIZE - offset_in_page(gpa), len);
-		if (mode)
+		rc = access_guest_page(vcpu->kvm, mode, gpa, data, fragment_len);
-			rc = write_guest_abs(vcpu, gpa, data, _len);
+		len -= fragment_len;
-		else
+		gra += fragment_len;
-			rc = read_guest_abs(vcpu, gpa, data, _len);
+		data += fragment_len;
-		len -= _len;
-		gra += _len;
-		data += _len;
 	}
+	if (rc > 0)
+		vcpu->arch.pgm.code = rc;
 	return rc;
 }
 
@@ -904,8 +955,6 @@ int access_guest_real(struct kvm_vcpu *vcpu, unsigned long gra,
 int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 			    unsigned long *gpa, enum gacc_mode mode)
 {
-	psw_t *psw = &vcpu->arch.sie_block->gpsw;
-	enum prot_type prot;
 	union asce asce;
 	int rc;
 
@@ -913,23 +962,7 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 	rc = get_vcpu_asce(vcpu, &asce, gva, ar, mode);
 	if (rc)
 		return rc;
-	if (is_low_address(gva) && low_address_protection_enabled(vcpu, asce)) {
+	return guest_range_to_gpas(vcpu, gva, ar, gpa, 1, asce, mode);
-		if (mode == GACC_STORE)
-			return trans_exc(vcpu, PGM_PROTECTION, gva, 0,
-					 mode, PROT_TYPE_LA);
-	}
-
-	if (psw_bits(*psw).dat && !asce.r) {	/* Use DAT? */
-		rc = guest_translate(vcpu, gva, gpa, asce, mode, &prot);
-		if (rc > 0)
-			return trans_exc(vcpu, rc, gva, 0, mode, prot);
-	} else {
-		*gpa = kvm_s390_real_to_abs(vcpu, gva);
-		if (kvm_is_error_gpa(vcpu->kvm, *gpa))
-			return trans_exc(vcpu, rc, gva, PGM_ADDRESSING, mode, 0);
-	}
-
-	return rc;
 }
 
 /**
@@ -938,17 +971,14 @@ int guest_translate_address(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 int check_gva_range(struct kvm_vcpu *vcpu, unsigned long gva, u8 ar,
 		    unsigned long length, enum gacc_mode mode)
 {
-	unsigned long gpa;
+	union asce asce;
-	unsigned long currlen;
 	int rc = 0;
 
+	rc = get_vcpu_asce(vcpu, &asce, gva, ar, mode);
+	if (rc)
+		return rc;
 	ipte_lock(vcpu);
-	while (length > 0 && !rc) {
+	rc = guest_range_to_gpas(vcpu, gva, ar, NULL, length, asce, mode);
-		currlen = min(length, PAGE_SIZE - (gva % PAGE_SIZE));
-		rc = guest_translate_address(vcpu, gva, ar, &gpa, mode);
-		gva += currlen;
-		length -= currlen;
-	}
 	ipte_unlock(vcpu);
 
 	return rc;

arch/s390/kvm/gaccess.h

@@ -344,11 +344,12 @@ 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.
  */
@@ -367,11 +368,12 @@ 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.
  */

arch/s390/mm/cmm.c

@@ -95,11 +95,12 @@ static long cmm_alloc_pages(long nr, long *counter,
 		(*counter)++;
 		spin_unlock(&cmm_lock);
 		nr--;
+		cond_resched();
 	}
 	return nr;
 }
 
-static long cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
+static long __cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
 {
 	struct cmm_page_array *pa;
 	unsigned long addr;
@@ -123,6 +124,21 @@ static long cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
 	return nr;
 }
 
+static long cmm_free_pages(long nr, long *counter, struct cmm_page_array **list)
+{
+	long inc = 0;
+
+	while (nr) {
+		inc = min(256L, nr);
+		nr -= inc;
+		inc = __cmm_free_pages(inc, counter, list);
+		if (inc)
+			break;
+		cond_resched();
+	}
+	return nr + inc;
+}
+
 static int cmm_oom_notify(struct notifier_block *self,
 			  unsigned long dummy, void *parm)
 {

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 */

arch/x86/entry/entry_32.S

@@ -939,6 +939,8 @@ 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
@@ -949,7 +951,6 @@ 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.
@@ -1221,7 +1222,6 @@ SYM_CODE_START(asm_exc_nmi)
 
 	/* Not on SYSENTER stack. */
 	call	exc_nmi
-	CLEAR_CPU_BUFFERS
 	jmp	.Lnmi_return
 
 .Lnmi_from_sysenter_stack:
@@ -1242,6 +1242,7 @@ 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
@@ -1283,6 +1284,7 @@ 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)

arch/x86/events/intel/pt.c

@@ -1586,6 +1586,7 @@ static void pt_event_stop(struct perf_event *event, int mode)
 	 * see comment in intel_pt_interrupt().
 	 */
 	WRITE_ONCE(pt->handle_nmi, 0);
+	barrier();
 
 	pt_config_stop(event);
 
@@ -1637,11 +1638,10 @@ static long pt_event_snapshot_aux(struct perf_event *event,
 		return 0;
 
 	/*
-	 * Here, handle_nmi tells us if the tracing is on
+	 * There is no PT interrupt in this mode, so stop the trace and it will
+	 * remain stopped while the buffer is copied.
 	 */
-	if (READ_ONCE(pt->handle_nmi))
+	pt_config_stop(event);
-		pt_config_stop(event);
-
 	pt_read_offset(buf);
 	pt_update_head(pt);
 
@@ -1653,11 +1653,10 @@ static long pt_event_snapshot_aux(struct perf_event *event,
 	ret = perf_output_copy_aux(&pt->handle, handle, from, to);
 
 	/*
-	 * If the tracing was on when we turned up, restart it.
+	 * Here, handle_nmi tells us if the tracing was on.
-	 * Compiler barrier not needed as we couldn't have been
+	 * If the tracing was on, restart it.
-	 * preempted by anything that touches pt->handle_nmi.
 	 */
-	if (pt->handle_nmi)
+	if (READ_ONCE(pt->handle_nmi))
 		pt_config_start(event);
 
 	return ret;

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 is AMD family 0x17 or above (Zen) */
 #define X86_FEATURE_L1TF_PTEINV		( 7*32+29) /* "" L1TF workaround PTE inversion */
@@ -324,6 +324,7 @@
 #define X86_FEATURE_VIRT_SSBD		(13*32+25) /* Virtualized Speculative Store Bypass Disable */
 #define X86_FEATURE_AMD_SSB_NO		(13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */
 #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 */
 
 /* Thermal and Power Management Leaf, CPUID level 0x00000006 (EAX), word 14 */
 #define X86_FEATURE_DTHERM		(14*32+ 0) /* Digital Thermal Sensor */
@@ -455,4 +456,6 @@
 #define X86_BUG_SRSO			X86_BUG(1*32 + 0) /* AMD SRSO bug */
 #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 */

arch/x86/include/asm/syscall.h

@@ -85,7 +85,12 @@ static inline void syscall_get_arguments(struct task_struct *task,
 					 struct pt_regs *regs,
 					 unsigned long *args)
 {
-	memcpy(args, &regs->bx, 6 * sizeof(args[0]));
+	args[0] = regs->bx;
+	args[1] = regs->cx;
+	args[2] = regs->dx;
+	args[3] = regs->si;
+	args[4] = regs->di;
+	args[5] = regs->bp;
 }
 
 static inline void syscall_set_arguments(struct task_struct *task,

arch/x86/kernel/apic/apic.c

@@ -491,7 +491,19 @@ 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;
 }
 

arch/x86/kernel/cpu/bugs.c

@@ -1061,7 +1061,24 @@ static void __init retbleed_select_mitigation(void)
 
 	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:
@@ -2453,6 +2470,14 @@ 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");
@@ -2465,6 +2490,13 @@ 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");

arch/x86/kernel/cpu/common.c

@@ -1335,6 +1335,9 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
 	if (vulnerable_to_rfds(ia32_cap))
 		setup_force_cpu_bug(X86_BUG_RFDS);
 
+	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;
 

arch/x86/kernel/cpu/mshyperv.c

@@ -275,6 +275,7 @@ static void __init ms_hyperv_init_platform(void)
 	    ms_hyperv.misc_features & HV_FEATURE_FREQUENCY_MSRS_AVAILABLE) {
 		x86_platform.calibrate_tsc = hv_get_tsc_khz;
 		x86_platform.calibrate_cpu = hv_get_tsc_khz;
+		setup_force_cpu_cap(X86_FEATURE_TSC_KNOWN_FREQ);
 	}
 
 	if (ms_hyperv.hints & HV_X64_ENLIGHTENED_VMCS_RECOMMENDED) {

arch/x86/kernel/cpu/resctrl/core.c

@@ -251,7 +251,7 @@ 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)
 {
 	union cpuid_0x10_3_eax eax;
 	union cpuid_0x10_x_edx edx;
@@ -285,7 +285,7 @@ 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)
 {
 	union cpuid_0x10_3_eax eax;
 	union cpuid_0x10_x_edx edx;

arch/x86/kernel/kprobes/core.c

@@ -194,17 +194,10 @@ static unsigned long
 __recover_probed_insn(kprobe_opcode_t *buf, unsigned long addr)
 {
 	struct kprobe *kp;
-	unsigned long faddr;
+	bool faddr;
 
 	kp = get_kprobe((void *)addr);
-	faddr = ftrace_location(addr);
+	faddr = ftrace_location(addr) == addr;
-	/*
-	 * Addresses inside the ftrace location are refused by
-	 * arch_check_ftrace_location(). Something went terribly wrong
-	 * if such an address is checked here.
-	 */
-	if (WARN_ON(faddr && faddr != addr))
-		return 0UL;
 	/*
 	 * Use the current code if it is not modified by Kprobe
 	 * and it cannot be modified by ftrace.

arch/x86/mm/init.c

@@ -263,21 +263,17 @@ static void __init probe_page_size_mask(void)
 	}
 }
 
-#define INTEL_MATCH(_model) { .vendor  = X86_VENDOR_INTEL,	\
-			      .family  = 6,			\
-			      .model = _model,			\
-			    }
 /*
  * INVLPG may not properly flush Global entries
  * on these CPUs when PCIDs are enabled.
  */
 static const struct x86_cpu_id invlpg_miss_ids[] = {
-	INTEL_MATCH(INTEL_FAM6_ALDERLAKE   ),
+	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,      0),
-	INTEL_MATCH(INTEL_FAM6_ALDERLAKE_L ),
+	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,    0),
-	INTEL_MATCH(INTEL_FAM6_ALDERLAKE_N ),
+	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,    0),
-	INTEL_MATCH(INTEL_FAM6_RAPTORLAKE  ),
+	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE,     0),
-	INTEL_MATCH(INTEL_FAM6_RAPTORLAKE_P),
+	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,   0),
-	INTEL_MATCH(INTEL_FAM6_RAPTORLAKE_S),
+	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_S,   0),
 	{}
 };
 

arch/x86/xen/setup.c

@@ -856,7 +856,7 @@ char * __init xen_memory_setup(void)
 	 * to relocating (and even reusing) pages with kernel text or data.
 	 */
 	if (xen_is_e820_reserved(__pa_symbol(_text),
-			__pa_symbol(__bss_stop) - __pa_symbol(_text))) {
+				 __pa_symbol(_end) - __pa_symbol(_text))) {
 		xen_raw_console_write("Xen hypervisor allocated kernel memory conflicts with E820 map\n");
 		BUG();
 	}

block/bfq-iosched.c

@@ -2616,8 +2616,12 @@ bfq_setup_cooperator(struct bfq_data *bfqd, struct bfq_queue *bfqq,
 	struct bfq_queue *in_service_bfqq, *new_bfqq;
 
 	/* if a merge has already been setup, then proceed with that first */
-	if (bfqq->new_bfqq)
+	new_bfqq = bfqq->new_bfqq;
-		return bfqq->new_bfqq;
+	if (new_bfqq) {
+		while (new_bfqq->new_bfqq)
+			new_bfqq = new_bfqq->new_bfqq;
+		return new_bfqq;
+	}
 
 	/*
 	 * Do not perform queue merging if the device is non
@@ -2770,10 +2774,12 @@ void bfq_release_process_ref(struct bfq_data *bfqd, struct bfq_queue *bfqq)
 	bfq_put_queue(bfqq);
 }
 
-static void
+static struct bfq_queue *bfq_merge_bfqqs(struct bfq_data *bfqd,
-bfq_merge_bfqqs(struct bfq_data *bfqd, struct bfq_io_cq *bic,
+					 struct bfq_io_cq *bic,
-		struct bfq_queue *bfqq, struct bfq_queue *new_bfqq)
+					 struct bfq_queue *bfqq)
 {
+	struct bfq_queue *new_bfqq = bfqq->new_bfqq;
+
 	bfq_log_bfqq(bfqd, bfqq, "merging with queue %lu",
 		(unsigned long)new_bfqq->pid);
 	/* Save weight raising and idle window of the merged queues */
@@ -2841,6 +2847,8 @@ bfq_merge_bfqqs(struct bfq_data *bfqd, struct bfq_io_cq *bic,
 	new_bfqq->pid = -1;
 	bfqq->bic = NULL;
 	bfq_release_process_ref(bfqd, bfqq);
+
+	return new_bfqq;
 }
 
 static bool bfq_allow_bio_merge(struct request_queue *q, struct request *rq,
@@ -2876,14 +2884,8 @@ static bool bfq_allow_bio_merge(struct request_queue *q, struct request *rq,
 		 * fulfilled, i.e., bic can be redirected to new_bfqq
 		 * and bfqq can be put.
 		 */
-		bfq_merge_bfqqs(bfqd, bfqd->bio_bic, bfqq,
+		while (bfqq != new_bfqq)
-				new_bfqq);
+			bfqq = bfq_merge_bfqqs(bfqd, bfqd->bio_bic, bfqq);
-		/*
-		 * If we get here, bio will be queued into new_queue,
-		 * so use new_bfqq to decide whether bio and rq can be
-		 * merged.
-		 */
-		bfqq = new_bfqq;
 
 		/*
 		 * Change also bqfd->bio_bfqq, as
@@ -5437,6 +5439,7 @@ static bool __bfq_insert_request(struct bfq_data *bfqd, struct request *rq)
 	bool waiting, idle_timer_disabled = false;
 
 	if (new_bfqq) {
+		struct bfq_queue *old_bfqq = bfqq;
 		/*
 		 * Release the request's reference to the old bfqq
 		 * and make sure one is taken to the shared queue.
@@ -5452,18 +5455,18 @@ static bool __bfq_insert_request(struct bfq_data *bfqd, struct request *rq)
 		 * then complete the merge and redirect it to
 		 * new_bfqq.
 		 */
-		if (bic_to_bfqq(RQ_BIC(rq), 1) == bfqq)
+		if (bic_to_bfqq(RQ_BIC(rq), 1) == bfqq) {
-			bfq_merge_bfqqs(bfqd, RQ_BIC(rq),
+			while (bfqq != new_bfqq)
-					bfqq, new_bfqq);
+				bfqq = bfq_merge_bfqqs(bfqd, RQ_BIC(rq), bfqq);
+		}
 
-		bfq_clear_bfqq_just_created(bfqq);
+		bfq_clear_bfqq_just_created(old_bfqq);
 		/*
 		 * rq is about to be enqueued into new_bfqq,
 		 * release rq reference on bfqq
 		 */
-		bfq_put_queue(bfqq);
+		bfq_put_queue(old_bfqq);
 		rq->elv.priv[1] = new_bfqq;
-		bfqq = new_bfqq;
 	}
 
 	bfq_update_io_thinktime(bfqd, bfqq);
@@ -6004,7 +6007,7 @@ bfq_split_bfqq(struct bfq_io_cq *bic, struct bfq_queue *bfqq)
 {
 	bfq_log_bfqq(bfqq->bfqd, bfqq, "splitting queue");
 
-	if (bfqq_process_refs(bfqq) == 1) {
+	if (bfqq_process_refs(bfqq) == 1 && !bfqq->new_bfqq) {
 		bfqq->pid = current->pid;
 		bfq_clear_bfqq_coop(bfqq);
 		bfq_clear_bfqq_split_coop(bfqq);
@@ -6189,7 +6192,8 @@ static struct bfq_queue *bfq_init_rq(struct request *rq)
 	 * addition, if the queue has also just been split, we have to
 	 * resume its state.
 	 */
-	if (likely(bfqq != &bfqd->oom_bfqq) && bfqq_process_refs(bfqq) == 1) {
+	if (likely(bfqq != &bfqd->oom_bfqq) && !bfqq->new_bfqq &&
+	    bfqq_process_refs(bfqq) == 1) {
 		bfqq->bic = bic;
 		if (split) {
 			/*

block/blk-iocost.c

@@ -2022,7 +2022,7 @@ static void ioc_forgive_debts(struct ioc *ioc, u64 usage_us_sum, int nr_debtors,
 			      struct ioc_now *now)
 {
 	struct ioc_gq *iocg;
-	u64 dur, usage_pct, nr_cycles;
+	u64 dur, usage_pct, nr_cycles, nr_cycles_shift;
 
 	/* if no debtor, reset the cycle */
 	if (!nr_debtors) {
@@ -2084,10 +2084,12 @@ static void ioc_forgive_debts(struct ioc *ioc, u64 usage_us_sum, int nr_debtors,
 		old_debt = iocg->abs_vdebt;
 		old_delay = iocg->delay;
 
+		nr_cycles_shift = min_t(u64, nr_cycles, BITS_PER_LONG - 1);
 		if (iocg->abs_vdebt)
-			iocg->abs_vdebt = iocg->abs_vdebt >> nr_cycles ?: 1;
+			iocg->abs_vdebt = iocg->abs_vdebt >> nr_cycles_shift ?: 1;
+
 		if (iocg->delay)
-			iocg->delay = iocg->delay >> nr_cycles ?: 1;
+			iocg->delay = iocg->delay >> nr_cycles_shift ?: 1;
 
 		iocg_kick_waitq(iocg, true, now);
 

block/blk-rq-qos.c

@@ -225,8 +225,8 @@ 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;
 }
 

block/partitions/core.c

@@ -691,9 +691,11 @@ static bool blk_add_partition(struct gendisk *disk, struct block_device *bdev,
 
 	part = add_partition(disk, p, from, size, state->parts[p].flags,
 			     &state->parts[p].info);
-	if (IS_ERR(part) && PTR_ERR(part) != -ENXIO) {
+	if (IS_ERR(part)) {
-		printk(KERN_ERR " %s: p%d could not be added: %ld\n",
+		if (PTR_ERR(part) != -ENXIO) {
-		       disk->disk_name, p, -PTR_ERR(part));
+			printk(KERN_ERR " %s: p%d could not be added: %pe\n",
+			       disk->disk_name, p, part);
+		}
 		return true;
 	}
 

drivers/acpi/acpica/dbconvert.c

@@ -174,6 +174,8 @@ acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object)
 	elements =
 	    ACPI_ALLOCATE_ZEROED(DB_DEFAULT_PKG_ELEMENTS *
 				 sizeof(union acpi_object));
+	if (!elements)
+		return (AE_NO_MEMORY);
 
 	this = string;
 	for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) {

drivers/acpi/acpica/exprep.c

@@ -437,6 +437,9 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 
 		if (info->connection_node) {
 			second_desc = info->connection_node->object;
+			if (second_desc == NULL) {
+				break;
+			}
 			if (!(second_desc->common.flags & AOPOBJ_DATA_VALID)) {
 				status =
 				    acpi_ds_get_buffer_arguments(second_desc);

drivers/acpi/acpica/psargs.c

@@ -25,6 +25,8 @@ acpi_ps_get_next_package_length(struct acpi_parse_state *parser_state);
 static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 						       *parser_state);
 
+static void acpi_ps_free_field_list(union acpi_parse_object *start);
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_get_next_package_length
@@ -683,6 +685,39 @@ static union acpi_parse_object *acpi_ps_get_next_field(struct acpi_parse_state
 	return_PTR(field);
 }
 
+/*******************************************************************************
+ *
+ * FUNCTION:    acpi_ps_free_field_list
+ *
+ * PARAMETERS:  start               - First Op in field list
+ *
+ * RETURN:      None.
+ *
+ * DESCRIPTION: Free all Op objects inside a field list.
+ *
+ ******************************************************************************/
+
+static void acpi_ps_free_field_list(union acpi_parse_object *start)
+{
+	union acpi_parse_object *cur = start;
+	union acpi_parse_object *next;
+	union acpi_parse_object *arg;
+
+	while (cur) {
+		next = cur->common.next;
+
+		/* AML_INT_CONNECTION_OP can have a single argument */
+
+		arg = acpi_ps_get_arg(cur, 0);
+		if (arg) {
+			acpi_ps_free_op(arg);
+		}
+
+		acpi_ps_free_op(cur);
+		cur = next;
+	}
+}
+
 /*******************************************************************************
  *
  * FUNCTION:    acpi_ps_get_next_arg
@@ -751,6 +786,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 			while (parser_state->aml < parser_state->pkg_end) {
 				field = acpi_ps_get_next_field(parser_state);
 				if (!field) {
+					if (arg) {
+						acpi_ps_free_field_list(arg);
+					}
+
 					return_ACPI_STATUS(AE_NO_MEMORY);
 				}
 
@@ -820,6 +859,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 			    acpi_ps_get_next_namepath(walk_state, parser_state,
 						      arg,
 						      ACPI_NOT_METHOD_CALL);
+			if (ACPI_FAILURE(status)) {
+				acpi_ps_free_op(arg);
+				return_ACPI_STATUS(status);
+			}
 		} else {
 			/* Single complex argument, nothing returned */
 
@@ -854,6 +897,10 @@ acpi_ps_get_next_arg(struct acpi_walk_state *walk_state,
 			    acpi_ps_get_next_namepath(walk_state, parser_state,
 						      arg,
 						      ACPI_POSSIBLE_METHOD_CALL);
+			if (ACPI_FAILURE(status)) {
+				acpi_ps_free_op(arg);
+				return_ACPI_STATUS(status);
+			}
 
 			if (arg->common.aml_opcode == AML_INT_METHODCALL_OP) {
 

drivers/acpi/battery.c

@@ -695,27 +695,34 @@ static LIST_HEAD(acpi_battery_list);
 static LIST_HEAD(battery_hook_list);
 static DEFINE_MUTEX(hook_mutex);
 
-static void __battery_hook_unregister(struct acpi_battery_hook *hook, int lock)
+static void battery_hook_unregister_unlocked(struct acpi_battery_hook *hook)
 {
 	struct acpi_battery *battery;
+
 	/*
 	 * In order to remove a hook, we first need to
 	 * de-register all the batteries that are registered.
 	 */
-	if (lock)
-		mutex_lock(&hook_mutex);
 	list_for_each_entry(battery, &acpi_battery_list, list) {
 		hook->remove_battery(battery->bat);
 	}
-	list_del(&hook->list);
+	list_del_init(&hook->list);
-	if (lock)
+
-		mutex_unlock(&hook_mutex);
 	pr_info("extension unregistered: %s\n", hook->name);
 }
 
 void battery_hook_unregister(struct acpi_battery_hook *hook)
 {
-	__battery_hook_unregister(hook, 1);
+	mutex_lock(&hook_mutex);
+	/*
+	 * Ignore already unregistered battery hooks. This might happen
+	 * if a battery hook was previously unloaded due to an error when
+	 * adding a new battery.
+	 */
+	if (!list_empty(&hook->list))
+		battery_hook_unregister_unlocked(hook);
+
+	mutex_unlock(&hook_mutex);
 }
 EXPORT_SYMBOL_GPL(battery_hook_unregister);
 
@@ -724,7 +731,6 @@ void battery_hook_register(struct acpi_battery_hook *hook)
 	struct acpi_battery *battery;
 
 	mutex_lock(&hook_mutex);
-	INIT_LIST_HEAD(&hook->list);
 	list_add(&hook->list, &battery_hook_list);
 	/*
 	 * Now that the driver is registered, we need
@@ -741,7 +747,7 @@ void battery_hook_register(struct acpi_battery_hook *hook)
 			 * hooks.
 			 */
 			pr_err("extension failed to load: %s", hook->name);
-			__battery_hook_unregister(hook, 0);
+			battery_hook_unregister_unlocked(hook);
 			goto end;
 		}
 	}
@@ -778,7 +784,7 @@ static void battery_hook_add_battery(struct acpi_battery *battery)
 			 */
 			pr_err("error in extension, unloading: %s",
 					hook_node->name);
-			__battery_hook_unregister(hook_node, 0);
+			battery_hook_unregister_unlocked(hook_node);
 		}
 	}
 	mutex_unlock(&hook_mutex);
@@ -811,7 +817,7 @@ static void __exit battery_hook_exit(void)
 	 * need to remove the hooks.
 	 */
 	list_for_each_entry_safe(hook, ptr, &battery_hook_list, list) {
-		__battery_hook_unregister(hook, 1);
+		battery_hook_unregister(hook);
 	}
 	mutex_destroy(&hook_mutex);
 }

drivers/acpi/device_sysfs.c

@@ -533,8 +533,9 @@ int acpi_device_setup_files(struct acpi_device *dev)
 	 * If device has _STR, 'description' file is created
 	 */
 	if (acpi_has_method(dev->handle, "_STR")) {
-		status = acpi_evaluate_object(dev->handle, "_STR",
+		status = acpi_evaluate_object_typed(dev->handle, "_STR",
-					NULL, &buffer);
+						    NULL, &buffer,
+						    ACPI_TYPE_BUFFER);
 		if (ACPI_FAILURE(status))
 			buffer.pointer = NULL;
 		dev->pnp.str_obj = buffer.pointer;

drivers/acpi/ec.c

@@ -786,6 +786,9 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
 	unsigned long tmp;
 	int ret = 0;
 
+	if (t->rdata)
+		memset(t->rdata, 0, t->rlen);
+
 	/* start transaction */
 	spin_lock_irqsave(&ec->lock, tmp);
 	/* Enable GPE for command processing (IBF=0/OBF=1) */
@@ -822,8 +825,6 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
 
 	if (!ec || (!t) || (t->wlen && !t->wdata) || (t->rlen && !t->rdata))
 		return -EINVAL;
-	if (t->rdata)
-		memset(t->rdata, 0, t->rlen);
 
 	mutex_lock(&ec->mutex);
 	if (ec->global_lock) {
@@ -850,7 +851,7 @@ static int acpi_ec_burst_enable(struct acpi_ec *ec)
 				.wdata = NULL, .rdata = &d,
 				.wlen = 0, .rlen = 1};
 
-	return acpi_ec_transaction(ec, &t);
+	return acpi_ec_transaction_unlocked(ec, &t);
 }
 
 static int acpi_ec_burst_disable(struct acpi_ec *ec)
@@ -860,7 +861,7 @@ static int acpi_ec_burst_disable(struct acpi_ec *ec)
 				.wlen = 0, .rlen = 0};
 
 	return (acpi_ec_read_status(ec) & ACPI_EC_FLAG_BURST) ?
-				acpi_ec_transaction(ec, &t) : 0;
+				acpi_ec_transaction_unlocked(ec, &t) : 0;
 }
 
 static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data)
@@ -876,6 +877,19 @@ static int acpi_ec_read(struct acpi_ec *ec, u8 address, u8 *data)
 	return result;
 }
 
+static int acpi_ec_read_unlocked(struct acpi_ec *ec, u8 address, u8 *data)
+{
+	int result;
+	u8 d;
+	struct transaction t = {.command = ACPI_EC_COMMAND_READ,
+				.wdata = &address, .rdata = &d,
+				.wlen = 1, .rlen = 1};
+
+	result = acpi_ec_transaction_unlocked(ec, &t);
+	*data = d;
+	return result;
+}
+
 static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 {
 	u8 wdata[2] = { address, data };
@@ -886,6 +900,16 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data)
 	return acpi_ec_transaction(ec, &t);
 }
 
+static int acpi_ec_write_unlocked(struct acpi_ec *ec, u8 address, u8 data)
+{
+	u8 wdata[2] = { address, data };
+	struct transaction t = {.command = ACPI_EC_COMMAND_WRITE,
+				.wdata = wdata, .rdata = NULL,
+				.wlen = 2, .rlen = 0};
+
+	return acpi_ec_transaction_unlocked(ec, &t);
+}
+
 int ec_read(u8 addr, u8 *val)
 {
 	int err;
@@ -1306,6 +1330,7 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	struct acpi_ec *ec = handler_context;
 	int result = 0, i, bytes = bits / 8;
 	u8 *value = (u8 *)value64;
+	u32 glk;
 
 	if ((address > 0xFF) || !value || !handler_context)
 		return AE_BAD_PARAMETER;
@@ -1313,13 +1338,25 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (function != ACPI_READ && function != ACPI_WRITE)
 		return AE_BAD_PARAMETER;
 
+	mutex_lock(&ec->mutex);
+
+	if (ec->global_lock) {
+		acpi_status status;
+
+		status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
+		if (ACPI_FAILURE(status)) {
+			result = -ENODEV;
+			goto unlock;
+		}
+	}
+
 	if (ec->busy_polling || bits > 8)
 		acpi_ec_burst_enable(ec);
 
 	for (i = 0; i < bytes; ++i, ++address, ++value) {
 		result = (function == ACPI_READ) ?
-			acpi_ec_read(ec, address, value) :
+			acpi_ec_read_unlocked(ec, address, value) :
-			acpi_ec_write(ec, address, *value);
+			acpi_ec_write_unlocked(ec, address, *value);
 		if (result < 0)
 			break;
 	}
@@ -1327,6 +1364,12 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (ec->busy_polling || bits > 8)
 		acpi_ec_burst_disable(ec);
 
+	if (ec->global_lock)
+		acpi_release_global_lock(glk);
+
+unlock:
+	mutex_unlock(&ec->mutex);
+
 	switch (result) {
 	case -EINVAL:
 		return AE_BAD_PARAMETER;

drivers/acpi/pmic/tps68470_pmic.c

@@ -376,10 +376,8 @@ static int tps68470_pmic_opregion_probe(struct platform_device *pdev)
 	struct tps68470_pmic_opregion *opregion;
 	acpi_status status;
 
-	if (!dev || !tps68470_regmap) {
+	if (!tps68470_regmap)
-		dev_warn(dev, "dev or regmap is NULL\n");
+		return dev_err_probe(dev, -EINVAL, "regmap is missing\n");
-		return -EINVAL;
-	}
 
 	if (!handle) {
 		dev_warn(dev, "acpi handle is NULL\n");

drivers/acpi/resource.c

@@ -442,6 +442,13 @@ static const struct dmi_system_id asus_laptop[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "B2402CBA"),
 		},
 	},
+	{
+		/* Asus Vivobook X1704VAP */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "X1704VAP"),
+		},
+	},
 	{
 		/* TongFang GMxXGxx/TUXEDO Polaris 15 Gen5 AMD */
 		.matches = {
@@ -455,6 +462,12 @@ static const struct dmi_system_id asus_laptop[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "B1402CVA"),
 		},
 	},
+	{
+		/* TongFang GMxXGxX/TUXEDO Polaris 15 Gen5 AMD */
+		.matches = {
+			DMI_MATCH(DMI_BOARD_NAME, "GMxXGxX"),
+		},
+	},
 	{
 		/* TongFang GMxXGxx sold as Eluktronics Inc. RP-15 */
 		.matches = {
@@ -481,6 +494,13 @@ static const struct dmi_system_id asus_laptop[] = {
 			DMI_MATCH(DMI_BOARD_NAME, "GXxHRXx"),
 		},
 	},
+	{
+		/* Asus ExpertBook B2502CVA */
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+			DMI_MATCH(DMI_BOARD_NAME, "B2502CVA"),
+		},
+	},
 	{
 		/* TongFang GMxHGxx/TUXEDO Stellaris Slim Gen1 AMD */
 		.matches = {

drivers/android/binder.c

@@ -1283,6 +1283,10 @@ static void binder_cleanup_ref_olocked(struct binder_ref *ref)
 		binder_dequeue_work(ref->proc, &ref->death->work);
 		binder_stats_deleted(BINDER_STAT_DEATH);
 	}
+
+	if (ref->freeze)
+		binder_dequeue_work(ref->proc, &ref->freeze->work);
+
 	binder_stats_deleted(BINDER_STAT_REF);
 }
 
@@ -3832,7 +3836,6 @@ binder_request_freeze_notification(struct binder_proc *proc,
 {
 	struct binder_ref_freeze *freeze;
 	struct binder_ref *ref;
-	bool is_frozen;
 
 	freeze = kzalloc(sizeof(*freeze), GFP_KERNEL);
 	if (!freeze)
@@ -3848,31 +3851,30 @@ binder_request_freeze_notification(struct binder_proc *proc,
 	}
 
 	binder_node_lock(ref->node);
-
+	if (ref->freeze) {
-	if (ref->freeze || !ref->node->proc) {
+		binder_user_error("%d:%d BC_REQUEST_FREEZE_NOTIFICATION already set\n",
-		binder_user_error("%d:%d invalid BC_REQUEST_FREEZE_NOTIFICATION %s\n",
+				  proc->pid, thread->pid);
-				  proc->pid, thread->pid,
-				  ref->freeze ? "already set" : "dead node");
 		binder_node_unlock(ref->node);
 		binder_proc_unlock(proc);
 		kfree(freeze);
 		return -EINVAL;
 	}
-	binder_inner_proc_lock(ref->node->proc);
-	is_frozen = ref->node->proc->is_frozen;
-	binder_inner_proc_unlock(ref->node->proc);
 
 	INIT_LIST_HEAD(&freeze->work.entry);
 	freeze->cookie = handle_cookie->cookie;
 	freeze->work.type = BINDER_WORK_FROZEN_BINDER;
-	freeze->is_frozen = is_frozen;
-
 	ref->freeze = freeze;
 
-	binder_inner_proc_lock(proc);
+	if (ref->node->proc) {
-	binder_enqueue_work_ilocked(&ref->freeze->work, &proc->todo);
+		binder_inner_proc_lock(ref->node->proc);
-	binder_wakeup_proc_ilocked(proc);
+		freeze->is_frozen = ref->node->proc->is_frozen;
-	binder_inner_proc_unlock(proc);
+		binder_inner_proc_unlock(ref->node->proc);
+
+		binder_inner_proc_lock(proc);
+		binder_enqueue_work_ilocked(&freeze->work, &proc->todo);
+		binder_wakeup_proc_ilocked(proc);
+		binder_inner_proc_unlock(proc);
+	}
 
 	binder_node_unlock(ref->node);
 	binder_proc_unlock(proc);
@@ -5145,6 +5147,15 @@ static void binder_release_work(struct binder_proc *proc,
 		} break;
 		case BINDER_WORK_NODE:
 			break;
+		case BINDER_WORK_CLEAR_FREEZE_NOTIFICATION: {
+			struct binder_ref_freeze *freeze;
+
+			freeze = container_of(w, struct binder_ref_freeze, work);
+			binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
+				     "undelivered freeze notification, %016llx\n",
+				     (u64)freeze->cookie);
+			kfree(freeze);
+		} break;
 		default:
 			pr_err("unexpected work type, %d, not freed\n",
 			       wtype);
@@ -5558,6 +5569,7 @@ static bool binder_txns_pending_ilocked(struct binder_proc *proc)
 
 static void binder_add_freeze_work(struct binder_proc *proc, bool is_frozen)
 {
+	struct binder_node *prev = NULL;
 	struct rb_node *n;
 	struct binder_ref *ref;
 
@@ -5566,7 +5578,10 @@ static void binder_add_freeze_work(struct binder_proc *proc, bool is_frozen)
 		struct binder_node *node;
 
 		node = rb_entry(n, struct binder_node, rb_node);
+		binder_inc_node_tmpref_ilocked(node);
 		binder_inner_proc_unlock(proc);
+		if (prev)
+			binder_put_node(prev);
 		binder_node_lock(node);
 		hlist_for_each_entry(ref, &node->refs, node_entry) {
 			/*
@@ -5592,10 +5607,15 @@ static void binder_add_freeze_work(struct binder_proc *proc, bool is_frozen)
 			}
 			binder_inner_proc_unlock(ref->proc);
 		}
+		prev = node;
 		binder_node_unlock(node);
 		binder_inner_proc_lock(proc);
+		if (proc->is_dead)
+			break;
 	}
 	binder_inner_proc_unlock(proc);
+	if (prev)
+		binder_put_node(prev);
 }
 
 static int binder_ioctl_freeze(struct binder_freeze_info *info,
@@ -6258,6 +6278,7 @@ static void binder_deferred_release(struct binder_proc *proc)
 
 	binder_release_work(proc, &proc->todo);
 	binder_release_work(proc, &proc->delivered_death);
+	binder_release_work(proc, &proc_wrapper(proc)->delivered_freeze);
 
 	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
 		     "%s: %d threads %d, nodes %d (ref %d), refs %d, active transactions %d\n",
@@ -6391,6 +6412,12 @@ static void print_binder_work_ilocked(struct seq_file *m,
 	case BINDER_WORK_CLEAR_DEATH_NOTIFICATION:
 		seq_printf(m, "%shas cleared death notification\n", prefix);
 		break;
+	case BINDER_WORK_FROZEN_BINDER:
+		seq_printf(m, "%shas frozen binder\n", prefix);
+		break;
+	case BINDER_WORK_CLEAR_FREEZE_NOTIFICATION:
+		seq_printf(m, "%shas cleared freeze notification\n", prefix);
+		break;
 	default:
 		seq_printf(m, "%sunknown work: type %d\n", prefix, w->type);
 		break;
@@ -6540,6 +6567,10 @@ static void print_binder_proc(struct seq_file *m,
 		seq_puts(m, "  has delivered dead binder\n");
 		break;
 	}
+	list_for_each_entry(w, &proc_wrapper(proc)->delivered_freeze, entry) {
+		seq_puts(m, "  has delivered freeze binder\n");
+		break;
+	}
 	binder_inner_proc_unlock(proc);
 	if (!print_all && m->count == header_pos)
 		m->count = start_pos;

drivers/android/vendor_hooks.c

@@ -566,3 +566,4 @@ EXPORT_SYMBOL_GPL(GKI_struct_gic_chip_data);
 #include <linux/swap_slots.h>
 const struct swap_slots_cache *GKI_struct_swap_slots_cache;
 EXPORT_SYMBOL_GPL(GKI_struct_swap_slots_cache);
+EXPORT_TRACEPOINT_SYMBOL_GPL(android_vh_io_statistics);

drivers/ata/sata_sil.c

@@ -128,7 +128,7 @@ static const struct pci_device_id sil_pci_tbl[] = {
 static const struct sil_drivelist {
 	const char *product;
 	unsigned int quirk;
-} sil_blacklist [] = {
+} sil_quirks[] = {
 	{ "ST320012AS",		SIL_QUIRK_MOD15WRITE },
 	{ "ST330013AS",		SIL_QUIRK_MOD15WRITE },
 	{ "ST340017AS",		SIL_QUIRK_MOD15WRITE },
@@ -601,8 +601,8 @@ static void sil_thaw(struct ata_port *ap)
  *	list, and apply the fixups to only the specific
  *	devices/hosts/firmwares that need it.
  *
- *	20040111 - Seagate drives affected by the Mod15Write bug are blacklisted
+ *	20040111 - Seagate drives affected by the Mod15Write bug are quirked
- *	The Maxtor quirk is in the blacklist, but I'm keeping the original
+ *	The Maxtor quirk is in sil_quirks, but I'm keeping the original
  *	pessimistic fix for the following reasons...
  *	- There seems to be less info on it, only one device gleaned off the
  *	Windows	driver, maybe only one is affected.  More info would be greatly
@@ -621,9 +621,9 @@ static void sil_dev_config(struct ata_device *dev)
 
 	ata_id_c_string(dev->id, model_num, ATA_ID_PROD, sizeof(model_num));
 
-	for (n = 0; sil_blacklist[n].product; n++)
+	for (n = 0; sil_quirks[n].product; n++)
-		if (!strcmp(sil_blacklist[n].product, model_num)) {
+		if (!strcmp(sil_quirks[n].product, model_num)) {
-			quirks = sil_blacklist[n].quirk;
+			quirks = sil_quirks[n].quirk;
 			break;
 		}
 

drivers/base/bus.c

@@ -104,7 +104,8 @@ static ssize_t bus_attr_show(struct kobject *kobj, struct attribute *attr,
 {
 	struct bus_attribute *bus_attr = to_bus_attr(attr);
 	struct subsys_private *subsys_priv = to_subsys_private(kobj);
-	ssize_t ret = 0;
+	/* return -EIO for reading a bus attribute without show() */
+	ssize_t ret = -EIO;
 
 	if (bus_attr->show)
 		ret = bus_attr->show(subsys_priv->bus, buf);
@@ -116,7 +117,8 @@ static ssize_t bus_attr_store(struct kobject *kobj, struct attribute *attr,
 {
 	struct bus_attribute *bus_attr = to_bus_attr(attr);
 	struct subsys_private *subsys_priv = to_subsys_private(kobj);
-	ssize_t ret = 0;
+	/* return -EIO for writing a bus attribute without store() */
+	ssize_t ret = -EIO;
 
 	if (bus_attr->store)
 		ret = bus_attr->store(subsys_priv->bus, buf, count);

drivers/base/firmware_loader/main.c

@@ -787,6 +787,26 @@ static void fw_abort_batch_reqs(struct firmware *fw)
 	mutex_unlock(&fw_lock);
 }
 
+/*
+ * Reject firmware file names with ".." path components.
+ * There are drivers that construct firmware file names from device-supplied
+ * strings, and we don't want some device to be able to tell us "I would like to
+ * be sent my firmware from ../../../etc/shadow, please".
+ *
+ * Search for ".." surrounded by either '/' or start/end of string.
+ *
+ * This intentionally only looks at the firmware name, not at the firmware base
+ * directory or at symlink contents.
+ */
+static bool name_contains_dotdot(const char *name)
+{
+	size_t name_len = strlen(name);
+
+	return strcmp(name, "..") == 0 || strncmp(name, "../", 3) == 0 ||
+	       strstr(name, "/../") != NULL ||
+	       (name_len >= 3 && strcmp(name+name_len-3, "/..") == 0);
+}
+
 /* called from request_firmware() and request_firmware_work_func() */
 static int
 _request_firmware(const struct firmware **firmware_p, const char *name,
@@ -805,6 +825,14 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
 		goto out;
 	}
 
+	if (name_contains_dotdot(name)) {
+		dev_warn(device,
+			 "Firmware load for '%s' refused, path contains '..' component\n",
+			 name);
+		ret = -EINVAL;
+		goto out;
+	}
+
 	ret = _request_firmware_prepare(&fw, name, device, buf, size,
 					offset, opt_flags);
 	if (ret <= 0) /* error or already assigned */
@@ -860,6 +888,8 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
  *      @name will be used as $FIRMWARE in the uevent environment and
  *      should be distinctive enough not to be confused with any other
  *      firmware image for this or any other device.
+ *	It must not contain any ".." path components - "foo/bar..bin" is
+ *	allowed, but "foo/../bar.bin" is not.
  *
  *	Caller must hold the reference count of @device.
  *

drivers/block/aoe/aoecmd.c

@@ -362,6 +362,7 @@ ata_rw_frameinit(struct frame *f)
 	}
 
 	ah->cmdstat = ATA_CMD_PIO_READ | writebit | extbit;
+	dev_hold(t->ifp->nd);
 	skb->dev = t->ifp->nd;
 }
 
@@ -402,6 +403,8 @@ aoecmd_ata_rw(struct aoedev *d)
 		__skb_queue_head_init(&queue);
 		__skb_queue_tail(&queue, skb);
 		aoenet_xmit(&queue);
+	} else {
+		dev_put(f->t->ifp->nd);
 	}
 	return 1;
 }
@@ -484,10 +487,13 @@ resend(struct aoedev *d, struct frame *f)
 	memcpy(h->dst, t->addr, sizeof h->dst);
 	memcpy(h->src, t->ifp->nd->dev_addr, sizeof h->src);
 
+	dev_hold(t->ifp->nd);
 	skb->dev = t->ifp->nd;
 	skb = skb_clone(skb, GFP_ATOMIC);
-	if (skb == NULL)
+	if (skb == NULL) {
+		dev_put(t->ifp->nd);
 		return;
+	}
 	f->sent = ktime_get();
 	__skb_queue_head_init(&queue);
 	__skb_queue_tail(&queue, skb);
@@ -618,6 +624,8 @@ probe(struct aoetgt *t)
 		__skb_queue_head_init(&queue);
 		__skb_queue_tail(&queue, skb);
 		aoenet_xmit(&queue);
+	} else {
+		dev_put(f->t->ifp->nd);
 	}
 }
 
@@ -1403,6 +1411,7 @@ aoecmd_ata_id(struct aoedev *d)
 	ah->cmdstat = ATA_CMD_ID_ATA;
 	ah->lba3 = 0xa0;
 
+	dev_hold(t->ifp->nd);
 	skb->dev = t->ifp->nd;
 
 	d->rttavg = RTTAVG_INIT;
@@ -1412,6 +1421,8 @@ aoecmd_ata_id(struct aoedev *d)
 	skb = skb_clone(skb, GFP_ATOMIC);
 	if (skb)
 		f->sent = ktime_get();
+	else
+		dev_put(t->ifp->nd);
 
 	return skb;
 }

drivers/block/drbd/drbd_main.c

@@ -3429,10 +3429,12 @@ void drbd_uuid_new_current(struct drbd_device *device) __must_hold(local)
 void drbd_uuid_set_bm(struct drbd_device *device, u64 val) __must_hold(local)
 {
 	unsigned long flags;
-	if (device->ldev->md.uuid[UI_BITMAP] == 0 && val == 0)
-		return;
-
 	spin_lock_irqsave(&device->ldev->md.uuid_lock, flags);
+	if (device->ldev->md.uuid[UI_BITMAP] == 0 && val == 0) {
+		spin_unlock_irqrestore(&device->ldev->md.uuid_lock, flags);
+		return;
+	}
+
 	if (val == 0) {
 		drbd_uuid_move_history(device);
 		device->ldev->md.uuid[UI_HISTORY_START] = device->ldev->md.uuid[UI_BITMAP];

drivers/block/drbd/drbd_state.c

@@ -876,7 +876,7 @@ is_valid_state(struct drbd_device *device, union drbd_state ns)
 		  ns.disk == D_OUTDATED)
 		rv = SS_CONNECTED_OUTDATES;
 
-	else if ((ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T) &&
+	else if (nc && (ns.conn == C_VERIFY_S || ns.conn == C_VERIFY_T) &&
 		 (nc->verify_alg[0] == 0))
 		rv = SS_NO_VERIFY_ALG;
 

drivers/bluetooth/btmrvl_sdio.c

@@ -105,7 +105,7 @@ static int btmrvl_sdio_probe_of(struct device *dev,
 		} else {
 			ret = devm_request_irq(dev, cfg->irq_bt,
 					       btmrvl_wake_irq_bt,
-					       0, "bt_wake", card);
+					       IRQF_NO_AUTOEN, "bt_wake", card);
 			if (ret) {
 				dev_err(dev,
 					"Failed to request irq_bt %d (%d)\n",
@@ -114,7 +114,6 @@ static int btmrvl_sdio_probe_of(struct device *dev,
 
 			/* Configure wakeup (enabled by default) */
 			device_init_wakeup(dev, true);
-			disable_irq(cfg->irq_bt);
 		}
 	}
 

drivers/bluetooth/btusb.c

@@ -928,7 +928,15 @@ static int btusb_submit_intr_urb(struct hci_dev *hdev, gfp_t mem_flags)
 	if (!urb)
 		return -ENOMEM;
 
-	size = le16_to_cpu(data->intr_ep->wMaxPacketSize);
+	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) {

drivers/bus/arm-integrator-lm.c

@@ -84,6 +84,7 @@ static int integrator_ap_lm_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 	map = syscon_node_to_regmap(syscon);
+	of_node_put(syscon);
 	if (IS_ERR(map)) {
 		dev_err(dev,
 			"could not find Integrator/AP system controller\n");

drivers/char/hw_random/cctrng.c

@@ -679,6 +679,7 @@ static int __maybe_unused cctrng_resume(struct device *dev)
 	/* wait for Cryptocell reset completion */
 	if (!cctrng_wait_for_reset_completion(drvdata)) {
 		dev_err(dev, "Cryptocell reset not completed");
+		clk_disable_unprepare(drvdata->clk);
 		return -EBUSY;
 	}
 

drivers/char/hw_random/mtk-rng.c

@@ -142,7 +142,7 @@ static int mtk_rng_probe(struct platform_device *pdev)
 	dev_set_drvdata(&pdev->dev, priv);
 	pm_runtime_set_autosuspend_delay(&pdev->dev, RNG_AUTOSUSPEND_TIMEOUT);
 	pm_runtime_use_autosuspend(&pdev->dev);
-	pm_runtime_enable(&pdev->dev);
+	devm_pm_runtime_enable(&pdev->dev);
 
 	dev_info(&pdev->dev, "registered RNG driver\n");
 

drivers/char/tpm/tpm-dev-common.c

@@ -48,6 +48,8 @@ static ssize_t tpm_dev_transmit(struct tpm_chip *chip, struct tpm_space *space,
 
 	if (!ret)
 		ret = tpm2_commit_space(chip, space, buf, &len);
+	else
+		tpm2_flush_space(chip);
 
 out_rc:
 	return ret ? ret : len;

drivers/char/tpm/tpm2-space.c

@@ -166,6 +166,9 @@ void tpm2_flush_space(struct tpm_chip *chip)
 	struct tpm_space *space = &chip->work_space;
 	int i;
 
+	if (!space)
+		return;
+
 	for (i = 0; i < ARRAY_SIZE(space->context_tbl); i++)
 		if (space->context_tbl[i] && ~space->context_tbl[i])
 			tpm2_flush_context(chip, space->context_tbl[i]);

drivers/char/virtio_console.c

@@ -2049,25 +2049,27 @@ static int virtcons_probe(struct virtio_device *vdev)
 		multiport = true;
 	}
 
-	err = init_vqs(portdev);
-	if (err < 0) {
-		dev_err(&vdev->dev, "Error %d initializing vqs\n", err);
-		goto free_chrdev;
-	}
-
 	spin_lock_init(&portdev->ports_lock);
 	INIT_LIST_HEAD(&portdev->ports);
 	INIT_LIST_HEAD(&portdev->list);
 
-	virtio_device_ready(portdev->vdev);
-
 	INIT_WORK(&portdev->config_work, &config_work_handler);
 	INIT_WORK(&portdev->control_work, &control_work_handler);
 
 	if (multiport) {
 		spin_lock_init(&portdev->c_ivq_lock);
 		spin_lock_init(&portdev->c_ovq_lock);
+	}
 
+	err = init_vqs(portdev);
+	if (err < 0) {
+		dev_err(&vdev->dev, "Error %d initializing vqs\n", err);
+		goto free_chrdev;
+	}
+
+	virtio_device_ready(portdev->vdev);
+
+	if (multiport) {
 		err = fill_queue(portdev->c_ivq, &portdev->c_ivq_lock);
 		if (err < 0) {
 			dev_err(&vdev->dev,

drivers/clk/bcm/clk-bcm53573-ilp.c

@@ -112,7 +112,7 @@ static void bcm53573_ilp_init(struct device_node *np)
 		goto err_free_ilp;
 	}
 
-	ilp->regmap = syscon_node_to_regmap(of_get_parent(np));
+	ilp->regmap = syscon_node_to_regmap(np->parent);
 	if (IS_ERR(ilp->regmap)) {
 		err = PTR_ERR(ilp->regmap);
 		goto err_free_ilp;

drivers/clk/imx/clk-imx7d.c

@@ -498,9 +498,9 @@ static void __init imx7d_clocks_init(struct device_node *ccm_node)
 	hws[IMX7D_ENET_AXI_ROOT_SRC] = imx_clk_hw_mux2_flags("enet_axi_src", base + 0x8900, 24, 3, enet_axi_sel, ARRAY_SIZE(enet_axi_sel), CLK_SET_PARENT_GATE);
 	hws[IMX7D_NAND_USDHC_BUS_ROOT_SRC] = imx_clk_hw_mux2_flags("nand_usdhc_src", base + 0x8980, 24, 3, nand_usdhc_bus_sel, ARRAY_SIZE(nand_usdhc_bus_sel), CLK_SET_PARENT_GATE);
 	hws[IMX7D_DRAM_PHYM_ROOT_SRC] = imx_clk_hw_mux2_flags("dram_phym_src", base + 0x9800, 24, 1, dram_phym_sel, ARRAY_SIZE(dram_phym_sel), CLK_SET_PARENT_GATE);
-	hws[IMX7D_DRAM_ROOT_SRC] = imx_clk_hw_mux2_flags("dram_src", base + 0x9880, 24, 1, dram_sel, ARRAY_SIZE(dram_sel), CLK_SET_PARENT_GATE);
+	hws[IMX7D_DRAM_ROOT_SRC] = imx_clk_hw_mux2("dram_src", base + 0x9880, 24, 1, dram_sel, ARRAY_SIZE(dram_sel));
 	hws[IMX7D_DRAM_PHYM_ALT_ROOT_SRC] = imx_clk_hw_mux2_flags("dram_phym_alt_src", base + 0xa000, 24, 3, dram_phym_alt_sel, ARRAY_SIZE(dram_phym_alt_sel), CLK_SET_PARENT_GATE);
-	hws[IMX7D_DRAM_ALT_ROOT_SRC]  = imx_clk_hw_mux2_flags("dram_alt_src", base + 0xa080, 24, 3, dram_alt_sel, ARRAY_SIZE(dram_alt_sel), CLK_SET_PARENT_GATE);
+	hws[IMX7D_DRAM_ALT_ROOT_SRC]  = imx_clk_hw_mux2("dram_alt_src", base + 0xa080, 24, 3, dram_alt_sel, ARRAY_SIZE(dram_alt_sel));
 	hws[IMX7D_USB_HSIC_ROOT_SRC] = imx_clk_hw_mux2_flags("usb_hsic_src", base + 0xa100, 24, 3, usb_hsic_sel, ARRAY_SIZE(usb_hsic_sel), CLK_SET_PARENT_GATE);
 	hws[IMX7D_PCIE_CTRL_ROOT_SRC] = imx_clk_hw_mux2_flags("pcie_ctrl_src", base + 0xa180, 24, 3, pcie_ctrl_sel, ARRAY_SIZE(pcie_ctrl_sel), CLK_SET_PARENT_GATE);
 	hws[IMX7D_PCIE_PHY_ROOT_SRC] = imx_clk_hw_mux2_flags("pcie_phy_src", base + 0xa200, 24, 3, pcie_phy_sel, ARRAY_SIZE(pcie_phy_sel), CLK_SET_PARENT_GATE);

drivers/clk/imx/clk-imx8mp.c

@@ -579,8 +579,8 @@ static int imx8mp_clocks_probe(struct platform_device *pdev)
 	hws[IMX8MP_CLK_IPG_ROOT] = imx_clk_hw_divider2("ipg_root", "ahb_root", ccm_base + 0x9080, 0, 1);
 	hws[IMX8MP_CLK_IPG_AUDIO_ROOT] = imx_clk_hw_divider2("ipg_audio_root", "audio_ahb", ccm_base + 0x9180, 0, 1);
 
-	hws[IMX8MP_CLK_DRAM_ALT] = imx8m_clk_hw_composite("dram_alt", imx8mp_dram_alt_sels, ccm_base + 0xa000);
+	hws[IMX8MP_CLK_DRAM_ALT] = imx8m_clk_hw_fw_managed_composite("dram_alt", imx8mp_dram_alt_sels, ccm_base + 0xa000);
-	hws[IMX8MP_CLK_DRAM_APB] = imx8m_clk_hw_composite_critical("dram_apb", imx8mp_dram_apb_sels, ccm_base + 0xa080);
+	hws[IMX8MP_CLK_DRAM_APB] = imx8m_clk_hw_fw_managed_composite_critical("dram_apb", imx8mp_dram_apb_sels, ccm_base + 0xa080);
 	hws[IMX8MP_CLK_VPU_G1] = imx8m_clk_hw_composite("vpu_g1", imx8mp_vpu_g1_sels, ccm_base + 0xa100);
 	hws[IMX8MP_CLK_VPU_G2] = imx8m_clk_hw_composite("vpu_g2", imx8mp_vpu_g2_sels, ccm_base + 0xa180);
 	hws[IMX8MP_CLK_CAN1] = imx8m_clk_hw_composite("can1", imx8mp_can1_sels, ccm_base + 0xa200);

drivers/clk/qcom/dispcc-sm8250.c

@@ -665,6 +665,7 @@ static struct clk_branch disp_cc_mdss_dp_link1_intf_clk = {
 				.hw = &disp_cc_mdss_dp_link1_div_clk_src.clkr.hw,
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -700,6 +701,7 @@ static struct clk_branch disp_cc_mdss_dp_link_intf_clk = {
 				.hw = &disp_cc_mdss_dp_link_div_clk_src.clkr.hw,
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},
@@ -825,6 +827,7 @@ static struct clk_branch disp_cc_mdss_mdp_lut_clk = {
 				.hw = &disp_cc_mdss_mdp_clk_src.clkr.hw,
 			},
 			.num_parents = 1,
+			.flags = CLK_SET_RATE_PARENT,
 			.ops = &clk_branch2_ops,
 		},
 	},

drivers/clk/qcom/gcc-sm8250.c

@@ -3229,7 +3229,7 @@ static struct gdsc pcie_0_gdsc = {
 	.pd = {
 		.name = "pcie_0_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 };
 
 static struct gdsc pcie_1_gdsc = {
@@ -3237,7 +3237,7 @@ static struct gdsc pcie_1_gdsc = {
 	.pd = {
 		.name = "pcie_1_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 };
 
 static struct gdsc pcie_2_gdsc = {
@@ -3245,7 +3245,7 @@ static struct gdsc pcie_2_gdsc = {
 	.pd = {
 		.name = "pcie_2_gdsc",
 	},
-	.pwrsts = PWRSTS_OFF_ON,
+	.pwrsts = PWRSTS_RET_ON,
 };
 
 static struct gdsc ufs_card_gdsc = {

drivers/clk/rockchip/clk-rk3228.c

@@ -408,7 +408,7 @@ static struct rockchip_clk_branch rk3228_clk_branches[] __initdata = {
 			RK2928_CLKSEL_CON(29), 0, 3, DFLAGS),
 	DIV(0, "sclk_vop_pre", "sclk_vop_src", 0,
 			RK2928_CLKSEL_CON(27), 8, 8, DFLAGS),
-	MUX(DCLK_VOP, "dclk_vop", mux_dclk_vop_p, 0,
+	MUX(DCLK_VOP, "dclk_vop", mux_dclk_vop_p, CLK_SET_RATE_PARENT | CLK_SET_RATE_NO_REPARENT,
 			RK2928_CLKSEL_CON(27), 1, 1, MFLAGS),
 
 	FACTOR(0, "xin12m", "xin24m", 0, 1, 2),

drivers/clk/rockchip/clk.c

@@ -442,12 +442,13 @@ void rockchip_clk_register_branches(struct rockchip_clk_provider *ctx,
 				    struct rockchip_clk_branch *list,
 				    unsigned int nr_clk)
 {
-	struct clk *clk = NULL;
+	struct clk *clk;
 	unsigned int idx;
 	unsigned long flags;
 
 	for (idx = 0; idx < nr_clk; idx++, list++) {
 		flags = list->flags;
+		clk = NULL;
 
 		/* catch simple muxes */
 		switch (list->branch_type) {

drivers/clk/ti/clk-dra7-atl.c

@@ -258,6 +258,7 @@ static int of_dra7_atl_clk_probe(struct platform_device *pdev)
 		}
 
 		clk = of_clk_get_from_provider(&clkspec);
+		of_node_put(clkspec.np);
 		if (IS_ERR(clk)) {
 			pr_err("%s: failed to get atl clock %d from provider\n",
 			       __func__, i);

drivers/clocksource/timer-qcom.c

@@ -233,6 +233,7 @@ static int __init msm_dt_timer_init(struct device_node *np)
 	}
 
 	if (of_property_read_u32(np, "clock-frequency", &freq)) {
+		iounmap(cpu0_base);
 		pr_err("Unknown frequency\n");
 		return -EINVAL;
 	}
@@ -243,7 +244,11 @@ static int __init msm_dt_timer_init(struct device_node *np)
 	freq /= 4;
 	writel_relaxed(DGT_CLK_CTL_DIV_4, source_base + DGT_CLK_CTL);
 
-	return msm_timer_init(freq, 32, irq, !!percpu_offset);
+	ret = msm_timer_init(freq, 32, irq, !!percpu_offset);
+	if (ret)
+		iounmap(cpu0_base);
+
+	return ret;
 }
 TIMER_OF_DECLARE(kpss_timer, "qcom,kpss-timer", msm_dt_timer_init);
 TIMER_OF_DECLARE(scss_timer, "qcom,scss-timer", msm_dt_timer_init);

drivers/cpufreq/ti-cpufreq.c

@@ -53,6 +53,9 @@ struct ti_cpufreq_soc_data {
 	unsigned long efuse_shift;
 	unsigned long rev_offset;
 	bool multi_regulator;
+/* Backward compatibility hack: Might have missing syscon */
+#define TI_QUIRK_SYSCON_MAY_BE_MISSING	0x1
+	u8 quirks;
 };
 
 struct ti_cpufreq_data {
@@ -156,6 +159,7 @@ static struct ti_cpufreq_soc_data omap34xx_soc_data = {
 	.efuse_mask = BIT(3),
 	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
 	.multi_regulator = false,
+	.quirks = TI_QUIRK_SYSCON_MAY_BE_MISSING,
 };
 
 /*
@@ -183,6 +187,7 @@ static struct ti_cpufreq_soc_data omap36xx_soc_data = {
 	.efuse_mask = BIT(9),
 	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
 	.multi_regulator = true,
+	.quirks = TI_QUIRK_SYSCON_MAY_BE_MISSING,
 };
 
 /*
@@ -197,6 +202,7 @@ static struct ti_cpufreq_soc_data am3517_soc_data = {
 	.efuse_mask = 0,
 	.rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
 	.multi_regulator = false,
+	.quirks = TI_QUIRK_SYSCON_MAY_BE_MISSING,
 };
 
 
@@ -216,7 +222,7 @@ static int ti_cpufreq_get_efuse(struct ti_cpufreq_data *opp_data,
 
 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->efuse_offset,
 			  &efuse);
-	if (ret == -EIO) {
+	if (opp_data->soc_data->quirks & TI_QUIRK_SYSCON_MAY_BE_MISSING && ret == -EIO) {
 		/* not a syscon register! */
 		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
 				opp_data->soc_data->efuse_offset, 4);
@@ -257,7 +263,7 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
 
 	ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset,
 			  &revision);
-	if (ret == -EIO) {
+	if (opp_data->soc_data->quirks & TI_QUIRK_SYSCON_MAY_BE_MISSING && ret == -EIO) {
 		/* not a syscon register! */
 		void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
 				opp_data->soc_data->rev_offset, 4);

drivers/crypto/ccp/sev-dev.c

@@ -1129,6 +1129,8 @@ void sev_pci_init(void)
 	return;
 
 err:
+	sev_dev_destroy(psp_master);
+
 	psp_master->sev_data = NULL;
 }
 

drivers/firmware/efi/libstub/tpm.c

@@ -115,7 +115,7 @@ void efi_retrieve_tpm2_eventlog(void)
 	}
 
 	/* Allocate space for the logs and copy them. */
-	status = efi_bs_call(allocate_pool, EFI_LOADER_DATA,
+	status = efi_bs_call(allocate_pool, EFI_ACPI_RECLAIM_MEMORY,
 			     sizeof(*log_tbl) + log_size, (void **)&log_tbl);
 
 	if (status != EFI_SUCCESS) {

drivers/firmware/tegra/bpmp.c

@@ -25,12 +25,6 @@
 #define MSG_RING	BIT(1)
 #define TAG_SZ		32
 
-static inline struct tegra_bpmp *
-mbox_client_to_bpmp(struct mbox_client *client)
-{
-	return container_of(client, struct tegra_bpmp, mbox.client);
-}
-
 static inline const struct tegra_bpmp_ops *
 channel_to_ops(struct tegra_bpmp_channel *channel)
 {

drivers/gpio/gpio-aspeed.c

@@ -404,6 +404,8 @@ static void __aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
 	gpio->dcache[GPIO_BANK(offset)] = reg;
 
 	iowrite32(reg, addr);
+	/* Flush write */
+	ioread32(addr);
 }
 
 static void aspeed_gpio_set(struct gpio_chip *gc, unsigned int offset,
@@ -1157,7 +1159,7 @@ static int __init aspeed_gpio_probe(struct platform_device *pdev)
 	if (!gpio_id)
 		return -EINVAL;
 
-	gpio->clk = of_clk_get(pdev->dev.of_node, 0);
+	gpio->clk = devm_clk_get_enabled(&pdev->dev, NULL);
 	if (IS_ERR(gpio->clk)) {
 		dev_warn(&pdev->dev,
 				"Failed to get clock from devicetree, debouncing disabled\n");

drivers/gpio/gpio-davinci.c

@@ -293,7 +293,7 @@ static int davinci_gpio_probe(struct platform_device *pdev)
  * serve as EDMA event triggers.
  */
 
-static void gpio_irq_disable(struct irq_data *d)
+static void gpio_irq_mask(struct irq_data *d)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d);
 	uintptr_t mask = (uintptr_t)irq_data_get_irq_handler_data(d);
@@ -302,7 +302,7 @@ static void gpio_irq_disable(struct irq_data *d)
 	writel_relaxed(mask, &g->clr_rising);
 }
 
-static void gpio_irq_enable(struct irq_data *d)
+static void gpio_irq_unmask(struct irq_data *d)
 {
 	struct davinci_gpio_regs __iomem *g = irq2regs(d);
 	uintptr_t mask = (uintptr_t)irq_data_get_irq_handler_data(d);
@@ -328,8 +328,8 @@ static int gpio_irq_type(struct irq_data *d, unsigned trigger)
 
 static struct irq_chip gpio_irqchip = {
 	.name		= "GPIO",
-	.irq_enable	= gpio_irq_enable,
+	.irq_unmask	= gpio_irq_unmask,
-	.irq_disable	= gpio_irq_disable,
+	.irq_mask	= gpio_irq_mask,
 	.irq_set_type	= gpio_irq_type,
 	.flags		= IRQCHIP_SET_TYPE_MASKED | IRQCHIP_SKIP_SET_WAKE,
 };

drivers/gpio/gpiolib-cdev.c

@@ -1110,15 +1110,18 @@ static long linereq_set_config_unlocked(struct linereq *lr,
 	for (i = 0; i < lr->num_lines; i++) {
 		desc = lr->lines[i].desc;
 		flags = gpio_v2_line_config_flags(lc, i);
+		/*
+		 * Lines not explicitly reconfigured as input or output
+		 * are left unchanged.
+		 */
+		if (!(flags & GPIO_V2_LINE_DIRECTION_FLAGS))
+			continue;
+
 		polarity_change =
 			(!!test_bit(FLAG_ACTIVE_LOW, &desc->flags) !=
 			 ((flags & GPIO_V2_LINE_FLAG_ACTIVE_LOW) != 0));
 
 		gpio_v2_line_config_flags_to_desc_flags(flags, &desc->flags);
-		/*
-		 * Lines have to be requested explicitly for input
-		 * or output, else the line will be treated "as is".
-		 */
 		if (flags & GPIO_V2_LINE_FLAG_OUTPUT) {
 			int val = gpio_v2_line_config_output_value(lc, i);
 
@@ -1126,7 +1129,7 @@ static long linereq_set_config_unlocked(struct linereq *lr,
 			ret = gpiod_direction_output(desc, val);
 			if (ret)
 				return ret;
-		} else if (flags & GPIO_V2_LINE_FLAG_INPUT) {
+		} else {
 			ret = gpiod_direction_input(desc);
 			if (ret)
 				return ret;

drivers/gpio/gpiolib.c

@@ -4,6 +4,7 @@
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
+#include <linux/nospec.h>
 #include <linux/spinlock.h>
 #include <linux/list.h>
 #include <linux/device.h>
@@ -147,7 +148,7 @@ struct gpio_desc *gpiochip_get_desc(struct gpio_chip *gc,
 	if (hwnum >= gdev->ngpio)
 		return ERR_PTR(-EINVAL);
 
-	return &gdev->descs[hwnum];
+	return &gdev->descs[array_index_nospec(hwnum, gdev->ngpio)];
 }
 EXPORT_SYMBOL_GPL(gpiochip_get_desc);
 

drivers/gpu/drm/amd/amdgpu/atombios_encoders.c

@@ -2098,23 +2098,29 @@ amdgpu_atombios_encoder_get_lcd_info(struct amdgpu_encoder *encoder)
 					fake_edid_record = (ATOM_FAKE_EDID_PATCH_RECORD *)record;
 					if (fake_edid_record->ucFakeEDIDLength) {
 						struct edid *edid;
-						int edid_size =
+						int edid_size;
-							max((int)EDID_LENGTH, (int)fake_edid_record->ucFakeEDIDLength);
-						edid = kmalloc(edid_size, GFP_KERNEL);
-						if (edid) {
-							memcpy((u8 *)edid, (u8 *)&fake_edid_record->ucFakeEDIDString[0],
-							       fake_edid_record->ucFakeEDIDLength);
 
+						if (fake_edid_record->ucFakeEDIDLength == 128)
+							edid_size = fake_edid_record->ucFakeEDIDLength;
+						else
+							edid_size = fake_edid_record->ucFakeEDIDLength * 128;
+						edid = kmemdup(&fake_edid_record->ucFakeEDIDString[0],
+							       edid_size, GFP_KERNEL);
+						if (edid) {
 							if (drm_edid_is_valid(edid)) {
 								adev->mode_info.bios_hardcoded_edid = edid;
 								adev->mode_info.bios_hardcoded_edid_size = edid_size;
-							} else
+							} else {
 								kfree(edid);
+							}
 						}
+						record += struct_size(fake_edid_record,
+								      ucFakeEDIDString,
+								      edid_size);
+					} else {
+						/* empty fake edid record must be 3 bytes long */
+						record += sizeof(ATOM_FAKE_EDID_PATCH_RECORD) + 1;
 					}
-					record += fake_edid_record->ucFakeEDIDLength ?
-						fake_edid_record->ucFakeEDIDLength + 2 :
-						sizeof(ATOM_FAKE_EDID_PATCH_RECORD);
 					break;
 				case LCD_PANEL_RESOLUTION_RECORD_TYPE:
 					panel_res_record = (ATOM_PANEL_RESOLUTION_PATCH_RECORD *)record;

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

@@ -1250,6 +1250,10 @@ static const struct amdgpu_gfxoff_quirk amdgpu_gfxoff_quirk_list[] = {
 	{ 0x1002, 0x15dd, 0x1002, 0x15dd, 0xc6 },
 	/* Apple MacBook Pro (15-inch, 2019) Radeon Pro Vega 20 4 GB */
 	{ 0x1002, 0x69af, 0x106b, 0x019a, 0xc0 },
+	/* https://bbs.openkylin.top/t/topic/171497 */
+	{ 0x1002, 0x15d8, 0x19e5, 0x3e14, 0xc2 },
+	/* HP 705G4 DM with R5 2400G */
+	{ 0x1002, 0x15dd, 0x103c, 0x8464, 0xd6 },
 	{ 0, 0, 0, 0, 0 },
 };
 

drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c

@@ -201,7 +201,7 @@ static bool validate_dsc_caps_on_connector(struct amdgpu_dm_connector *aconnecto
 		aconnector->dsc_aux = &aconnector->mst_port->dm_dp_aux.aux;
 
 	/* synaptics cascaded MST hub case */
-	if (!aconnector->dsc_aux && is_synaptics_cascaded_panamera(aconnector->dc_link, port))
+	if (is_synaptics_cascaded_panamera(aconnector->dc_link, port))
 		aconnector->dsc_aux = port->mgr->aux;
 
 	if (!aconnector->dsc_aux)