24 files changed, 455 insertions, 70 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 4fb291f0bf..faf9836800 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -293,21 +293,21 @@ config SGI_GRU
 	depends on X86_UV && SMP
 	select MMU_NOTIFIER
 	help
-	The GRU is a hardware resource located in the system chipset. The GRU
-	contains memory that can be mmapped into the user address space. This memory is
-	used to communicate with the GRU to perform functions such as load/store,
-	scatter/gather, bcopy, AMOs, etc.  The GRU is directly accessed by user
-	instructions using user virtual addresses. GRU instructions (ex., bcopy) use
-	user virtual addresses for operands.
+	  The GRU is a hardware resource located in the system chipset. The GRU
+	  contains memory that can be mmapped into the user address space.
+	  This memory is used to communicate with the GRU to perform functions
+	  such as load/store, scatter/gather, bcopy, AMOs, etc.  The GRU is
+	  directly accessed by user instructions using user virtual addresses.
+	  GRU instructions (ex., bcopy) use user virtual addresses for operands.
 
-	If you are not running on a SGI UV system, say N.
+	  If you are not running on a SGI UV system, say N.
 
 config SGI_GRU_DEBUG
 	bool  "SGI GRU driver debug"
 	depends on SGI_GRU
 	help
-	This option enables additional debugging code for the SGI GRU driver.
-	If you are unsure, say N.
+	  This option enables additional debugging code for the SGI GRU driver.
+	  If you are unsure, say N.
 
 config APDS9802ALS
 	tristate "Medfield Avago APDS9802 ALS Sensor module"
@@ -428,7 +428,6 @@ config LATTICE_ECP3_CONFIG
 	tristate "Lattice ECP3 FPGA bitstream configuration via SPI"
 	depends on SPI && SYSFS
 	select FW_LOADER
-	default	n
 	help
 	  This option enables support for bitstream configuration (programming
 	  or loading) of the Lattice ECP3 FPGA family via SPI.
@@ -506,6 +505,18 @@ config OPEN_DICE
 
 	  If unsure, say N.
 
+config NTSYNC
+	tristate "NT synchronization primitive emulation"
+	depends on BROKEN
+	help
+	  This module provides kernel support for emulation of Windows NT
+	  synchronization primitives. It is not a hardware driver.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ntsync.
+
+	  If unsure, say N.
+
 config VCPU_STALL_DETECTOR
 	tristate "Guest vCPU stall detector"
 	depends on OF && HAS_IOMEM
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index ea6ea5bbbc..153a3f4837 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -59,6 +59,7 @@ obj-$(CONFIG_PVPANIC)   	+= pvpanic/
 obj-$(CONFIG_UACCE)		+= uacce/
 obj-$(CONFIG_XILINX_SDFEC)	+= xilinx_sdfec.o
 obj-$(CONFIG_HISI_HIKEY_USB)	+= hisi_hikey_usb.o
+obj-$(CONFIG_NTSYNC)		+= ntsync.o
 obj-$(CONFIG_HI6421V600_IRQ)	+= hi6421v600-irq.o
 obj-$(CONFIG_OPEN_DICE)		+= open-dice.o
 obj-$(CONFIG_GP_PCI1XXXX)	+= mchp_pci1xxxx/
diff --git a/drivers/misc/cardreader/rtsx_pcr.c b/drivers/misc/cardreader/rtsx_pcr.c
index 0ad2ff9065..117b3c24f9 100644
--- a/drivers/misc/cardreader/rtsx_pcr.c
+++ b/drivers/misc/cardreader/rtsx_pcr.c
@@ -1002,12 +1002,14 @@ static irqreturn_t rtsx_pci_isr(int irq, void *dev_id)
 		} else {
 			pcr->card_removed |= SD_EXIST;
 			pcr->card_inserted &= ~SD_EXIST;
-			if ((PCI_PID(pcr) == PID_5261) || (PCI_PID(pcr) == PID_5264)) {
-				rtsx_pci_write_register(pcr, RTS5261_FW_STATUS,
-					RTS5261_EXPRESS_LINK_FAIL_MASK, 0);
-				pcr->extra_caps |= EXTRA_CAPS_SD_EXPRESS;
-			}
 		}
+
+		if ((PCI_PID(pcr) == PID_5261) || (PCI_PID(pcr) == PID_5264)) {
+			rtsx_pci_write_register(pcr, RTS5261_FW_STATUS,
+				RTS5261_EXPRESS_LINK_FAIL_MASK, 0);
+			pcr->extra_caps |= EXTRA_CAPS_SD_EXPRESS;
+		}
+
 		pcr->dma_error_count = 0;
 	}
 
diff --git a/drivers/misc/ds1682.c b/drivers/misc/ds1682.c
index 21fc5bc85c..5f8dcd0e38 100644
--- a/drivers/misc/ds1682.c
+++ b/drivers/misc/ds1682.c
@@ -32,6 +32,7 @@
 #include <linux/i2c.h>
 #include <linux/string.h>
 #include <linux/list.h>
+#include <linux/nvmem-provider.h>
 #include <linux/sysfs.h>
 #include <linux/ctype.h>
 #include <linux/hwmon-sysfs.h>
@@ -197,11 +198,43 @@ static const struct bin_attribute ds1682_eeprom_attr = {
 	.write = ds1682_eeprom_write,
 };
 
+static int ds1682_nvmem_read(void *priv, unsigned int offset, void *val,
+			     size_t bytes)
+{
+	struct i2c_client *client = priv;
+	int ret;
+
+	ret = i2c_smbus_read_i2c_block_data(client, DS1682_REG_EEPROM + offset,
+					    bytes, val);
+	return ret < 0 ? ret : 0;
+}
+
+static int ds1682_nvmem_write(void *priv, unsigned int offset, void *val,
+			      size_t bytes)
+{
+	struct i2c_client *client = priv;
+	int ret;
+
+	ret = i2c_smbus_write_i2c_block_data(client, DS1682_REG_EEPROM + offset,
+					     bytes, val);
+	return ret < 0 ? ret : 0;
+}
+
 /*
  * Called when a ds1682 device is matched with this driver
  */
 static int ds1682_probe(struct i2c_client *client)
 {
+	struct nvmem_config config = {
+		.dev = &client->dev,
+		.owner = THIS_MODULE,
+		.type = NVMEM_TYPE_EEPROM,
+		.reg_read = ds1682_nvmem_read,
+		.reg_write = ds1682_nvmem_write,
+		.size = DS1682_EEPROM_SIZE,
+		.priv = client,
+	};
+	struct nvmem_device *nvmem;
 	int rc;
 
 	if (!i2c_check_functionality(client->adapter,
@@ -211,6 +244,10 @@ static int ds1682_probe(struct i2c_client *client)
 		goto exit;
 	}
 
+	nvmem = devm_nvmem_register(&client->dev, &config);
+	if (IS_ENABLED(CONFIG_NVMEM) && IS_ERR(nvmem))
+		return PTR_ERR(nvmem);
+
 	rc = sysfs_create_group(&client->dev.kobj, &ds1682_group);
 	if (rc)
 		goto exit;
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 65d49a6de1..595ceb9a71 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -529,4 +529,3 @@ module_spi_driver(at25_driver);
 MODULE_DESCRIPTION("Driver for most SPI EEPROMs");
 MODULE_AUTHOR("David Brownell");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("spi:at25");
diff --git a/drivers/misc/eeprom/ee1004.c b/drivers/misc/eeprom/ee1004.c
index 21feebc304..71ca66d1df 100644
--- a/drivers/misc/eeprom/ee1004.c
+++ b/drivers/misc/eeprom/ee1004.c
@@ -185,6 +185,8 @@ BIN_ATTRIBUTE_GROUPS(ee1004);
 static void ee1004_probe_temp_sensor(struct i2c_client *client)
 {
 	struct i2c_board_info info = { .type = "jc42" };
+	unsigned short addr = 0x18 | (client->addr & 7);
+	unsigned short addr_list[] = { addr, I2C_CLIENT_END };
 	u8 byte14;
 	int ret;
 
@@ -193,9 +195,7 @@ static void ee1004_probe_temp_sensor(struct i2c_client *client)
 	if (ret != 1 || !(byte14 & BIT(7)))
 		return;
 
-	info.addr = 0x18 | (client->addr & 7);
-
-	i2c_new_client_device(client->adapter, &info);
+	i2c_new_scanned_device(client->adapter, &info, addr_list, NULL);
 }
 
 static void ee1004_cleanup(int idx, struct ee1004_bus_data *bd)
diff --git a/drivers/misc/eeprom/eeprom_93xx46.c b/drivers/misc/eeprom/eeprom_93xx46.c
index e78a76d74f..45c8ae0db8 100644
--- a/drivers/misc/eeprom/eeprom_93xx46.c
+++ b/drivers/misc/eeprom/eeprom_93xx46.c
@@ -578,5 +578,3 @@ MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Driver for 93xx46 EEPROMs");
 MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
 MODULE_ALIAS("spi:93xx46");
-MODULE_ALIAS("spi:eeprom-93xx46");
-MODULE_ALIAS("spi:93lc46b");
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c
index 4c67e2c5a8..a7a2bcedb3 100644
--- a/drivers/misc/fastrpc.c
+++ b/drivers/misc/fastrpc.c
@@ -1238,6 +1238,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
 	struct fastrpc_phy_page pages[1];
 	char *name;
 	int err;
+	bool scm_done = false;
 	struct {
 		int pgid;
 		u32 namelen;
@@ -1289,6 +1290,7 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
 					fl->cctx->remote_heap->phys, fl->cctx->remote_heap->size, err);
 				goto err_map;
 			}
+			scm_done = true;
 		}
 	}
 
@@ -1320,10 +1322,11 @@ static int fastrpc_init_create_static_process(struct fastrpc_user *fl,
 		goto err_invoke;
 
 	kfree(args);
+	kfree(name);
 
 	return 0;
 err_invoke:
-	if (fl->cctx->vmcount) {
+	if (fl->cctx->vmcount && scm_done) {
 		u64 src_perms = 0;
 		struct qcom_scm_vmperm dst_perms;
 		u32 i;
@@ -1693,16 +1696,20 @@ static int fastrpc_get_info_from_dsp(struct fastrpc_user *fl, uint32_t *dsp_attr
 {
 	struct fastrpc_invoke_args args[2] = { 0 };
 
-	/* Capability filled in userspace */
+	/*
+	 * Capability filled in userspace. This carries the information
+	 * about the remoteproc support which is fetched from the remoteproc
+	 * sysfs node by userspace.
+	 */
 	dsp_attr_buf[0] = 0;
+	dsp_attr_buf_len -= 1;
 
 	args[0].ptr = (u64)(uintptr_t)&dsp_attr_buf_len;
 	args[0].length = sizeof(dsp_attr_buf_len);
 	args[0].fd = -1;
 	args[1].ptr = (u64)(uintptr_t)&dsp_attr_buf[1];
-	args[1].length = dsp_attr_buf_len;
+	args[1].length = dsp_attr_buf_len * sizeof(u32);
 	args[1].fd = -1;
-	fl->pd = USER_PD;
 
 	return fastrpc_internal_invoke(fl, true, FASTRPC_DSP_UTILITIES_HANDLE,
 				       FASTRPC_SCALARS(0, 1, 1), args);
@@ -1730,7 +1737,7 @@ static int fastrpc_get_info_from_kernel(struct fastrpc_ioctl_capability *cap,
 	if (!dsp_attributes)
 		return -ENOMEM;
 
-	err = fastrpc_get_info_from_dsp(fl, dsp_attributes, FASTRPC_MAX_DSP_ATTRIBUTES_LEN);
+	err = fastrpc_get_info_from_dsp(fl, dsp_attributes, FASTRPC_MAX_DSP_ATTRIBUTES);
 	if (err == DSP_UNSUPPORTED_API) {
 		dev_info(&cctx->rpdev->dev,
 			 "Warning: DSP capabilities not supported on domain: %d\n", domain);
@@ -1783,7 +1790,7 @@ static int fastrpc_get_dsp_info(struct fastrpc_user *fl, char __user *argp)
 	if (err)
 		return err;
 
-	if (copy_to_user(argp, &cap.capability, sizeof(cap.capability)))
+	if (copy_to_user(argp, &cap, sizeof(cap)))
 		return -EFAULT;
 
 	return 0;
@@ -2080,6 +2087,16 @@ err_invoke:
 	return err;
 }
 
+static int is_attach_rejected(struct fastrpc_user *fl)
+{
+	/* Check if the device node is non-secure */
+	if (!fl->is_secure_dev) {
+		dev_dbg(&fl->cctx->rpdev->dev, "untrusted app trying to attach to privileged DSP PD\n");
+		return -EACCES;
+	}
+	return 0;
+}
+
 static long fastrpc_device_ioctl(struct file *file, unsigned int cmd,
 				 unsigned long arg)
 {
@@ -2092,13 +2109,19 @@ static long fastrpc_device_ioctl(struct file *file, unsigned int cmd,
 		err = fastrpc_invoke(fl, argp);
 		break;
 	case FASTRPC_IOCTL_INIT_ATTACH:
-		err = fastrpc_init_attach(fl, ROOT_PD);
+		err = is_attach_rejected(fl);
+		if (!err)
+			err = fastrpc_init_attach(fl, ROOT_PD);
 		break;
 	case FASTRPC_IOCTL_INIT_ATTACH_SNS:
-		err = fastrpc_init_attach(fl, SENSORS_PD);
+		err = is_attach_rejected(fl);
+		if (!err)
+			err = fastrpc_init_attach(fl, SENSORS_PD);
 		break;
 	case FASTRPC_IOCTL_INIT_CREATE_STATIC:
-		err = fastrpc_init_create_static_process(fl, argp);
+		err = is_attach_rejected(fl);
+		if (!err)
+			err = fastrpc_init_create_static_process(fl, argp);
 		break;
 	case FASTRPC_IOCTL_INIT_CREATE:
 		err = fastrpc_init_create_process(fl, argp);
diff --git a/drivers/misc/lkdtm/Makefile b/drivers/misc/lkdtm/Makefile
index b28701138b..39468bd27b 100644
--- a/drivers/misc/lkdtm/Makefile
+++ b/drivers/misc/lkdtm/Makefile
@@ -15,10 +15,6 @@ lkdtm-$(CONFIG_PPC_64S_HASH_MMU)	+= powerpc.o
 
 KASAN_SANITIZE_stackleak.o	:= n
 
-KASAN_SANITIZE_rodata.o			:= n
-KCSAN_SANITIZE_rodata.o			:= n
-KCOV_INSTRUMENT_rodata.o		:= n
-OBJECT_FILES_NON_STANDARD_rodata.o	:= y
 CFLAGS_REMOVE_rodata.o			+= $(CC_FLAGS_LTO) $(RETHUNK_CFLAGS) $(CC_FLAGS_CFI)
 
 OBJCOPYFLAGS :=
diff --git a/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c b/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c
index 16695cb5e6..7c3d8bedf9 100644
--- a/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c
+++ b/drivers/misc/mchp_pci1xxxx/mchp_pci1xxxx_otpe2p.c
@@ -153,7 +153,6 @@ static int pci1xxxx_eeprom_read(void *priv_t, unsigned int off,
 
 		buf[byte] = readl(rb + MMAP_EEPROM_OFFSET(EEPROM_DATA_REG));
 	}
-	ret = byte;
 error:
 	release_sys_lock(priv);
 	return ret;
@@ -197,7 +196,6 @@ static int pci1xxxx_eeprom_write(void *priv_t, unsigned int off,
 			goto error;
 		}
 	}
-	ret = byte;
 error:
 	release_sys_lock(priv);
 	return ret;
@@ -258,7 +256,6 @@ static int pci1xxxx_otp_read(void *priv_t, unsigned int off,
 
 		buf[byte] = readl(rb + MMAP_OTP_OFFSET(OTP_RD_DATA_OFFSET));
 	}
-	ret = byte;
 error:
 	release_sys_lock(priv);
 	return ret;
@@ -315,7 +312,6 @@ static int pci1xxxx_otp_write(void *priv_t, unsigned int off,
 			goto error;
 		}
 	}
-	ret = byte;
 error:
 	release_sys_lock(priv);
 	return ret;
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index f9bcff1976..99393f610c 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -1327,7 +1327,7 @@ static int mei_cl_device_uevent(const struct device *dev, struct kobj_uevent_env
 	return 0;
 }
 
-static struct bus_type mei_cl_bus_type = {
+static const struct bus_type mei_cl_bus_type = {
 	.name		= "mei",
 	.dev_groups	= mei_cldev_groups,
 	.match		= mei_cl_device_match,
diff --git a/drivers/misc/mei/hw.h b/drivers/misc/mei/hw.h
index eb800a07a8..2e9cf6f4ef 100644
--- a/drivers/misc/mei/hw.h
+++ b/drivers/misc/mei/hw.h
@@ -247,12 +247,10 @@ enum mei_ext_hdr_type {
  * struct mei_ext_hdr - extend header descriptor (TLV)
  * @type: enum mei_ext_hdr_type
  * @length: length excluding descriptor
- * @data: the extended header payload
  */
 struct mei_ext_hdr {
 	u8 type;
 	u8 length;
-	u8 data[];
 } __packed;
 
 /**
diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c
index 79e6f3c134..40c3fe26f7 100644
--- a/drivers/misc/mei/main.c
+++ b/drivers/misc/mei/main.c
@@ -329,7 +329,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 	}
 
 	if (!mei_cl_is_connected(cl)) {
-		cl_err(dev, cl, "is not connected");
+		cl_dbg(dev, cl, "is not connected");
 		rets = -ENODEV;
 		goto out;
 	}
diff --git a/drivers/misc/mei/mei-trace.h b/drivers/misc/mei/mei-trace.h
index fe46ff2b9d..5312edbf51 100644
--- a/drivers/misc/mei/mei-trace.h
+++ b/drivers/misc/mei/mei-trace.h
@@ -26,7 +26,7 @@ TRACE_EVENT(mei_reg_read,
 		__field(u32, val)
 	),
 	TP_fast_assign(
-		__assign_str(dev, dev_name(dev));
+		__assign_str(dev);
 		__entry->reg  = reg;
 		__entry->offs = offs;
 		__entry->val = val;
@@ -45,7 +45,7 @@ TRACE_EVENT(mei_reg_write,
 		__field(u32, val)
 	),
 	TP_fast_assign(
-		__assign_str(dev, dev_name(dev));
+		__assign_str(dev);
 		__entry->reg = reg;
 		__entry->offs = offs;
 		__entry->val = val;
@@ -64,7 +64,7 @@ TRACE_EVENT(mei_pci_cfg_read,
 		__field(u32, val)
 	),
 	TP_fast_assign(
-		__assign_str(dev, dev_name(dev));
+		__assign_str(dev);
 		__entry->reg  = reg;
 		__entry->offs = offs;
 		__entry->val = val;
diff --git a/drivers/misc/mei/platform-vsc.c b/drivers/misc/mei/platform-vsc.c
index 1ec65d8748..d02f6e8811 100644
--- a/drivers/misc/mei/platform-vsc.c
+++ b/drivers/misc/mei/platform-vsc.c
@@ -28,8 +28,8 @@
 
 #define MEI_VSC_MAX_MSG_SIZE		512
 
-#define MEI_VSC_POLL_DELAY_US		(50 * USEC_PER_MSEC)
-#define MEI_VSC_POLL_TIMEOUT_US		(200 * USEC_PER_MSEC)
+#define MEI_VSC_POLL_DELAY_US		(100 * USEC_PER_MSEC)
+#define MEI_VSC_POLL_TIMEOUT_US		(400 * USEC_PER_MSEC)
 
 #define mei_dev_to_vsc_hw(dev)		((struct mei_vsc_hw *)((dev)->hw))
 
diff --git a/drivers/misc/mei/vsc-fw-loader.c b/drivers/misc/mei/vsc-fw-loader.c
index 596a9d695d..084d0205f9 100644
--- a/drivers/misc/mei/vsc-fw-loader.c
+++ b/drivers/misc/mei/vsc-fw-loader.c
@@ -204,7 +204,7 @@ struct vsc_img_frag {
 
 /**
  * struct vsc_fw_loader - represent vsc firmware loader
- * @dev: device used to request fimware
+ * @dev: device used to request firmware
  * @tp: transport layer used with the firmware loader
  * @csi: CSI image
  * @ace: ACE image
diff --git a/drivers/misc/mei/vsc-tp.c b/drivers/misc/mei/vsc-tp.c
index e6a98dba8a..1618cca9a7 100644
--- a/drivers/misc/mei/vsc-tp.c
+++ b/drivers/misc/mei/vsc-tp.c
@@ -331,12 +331,12 @@ int vsc_tp_rom_xfer(struct vsc_tp *tp, const void *obuf, void *ibuf, size_t len)
 		return ret;
 	}
 
-	ret = vsc_tp_dev_xfer(tp, tp->tx_buf, tp->rx_buf, len);
+	ret = vsc_tp_dev_xfer(tp, tp->tx_buf, ibuf ? tp->rx_buf : NULL, len);
 	if (ret)
 		return ret;
 
 	if (ibuf)
-		cpu_to_be32_array(ibuf, tp->rx_buf, words);
+		be32_to_cpu_array(ibuf, tp->rx_buf, words);
 
 	return ret;
 }
@@ -568,6 +568,19 @@ static void vsc_tp_remove(struct spi_device *spi)
 	free_irq(spi->irq, tp);
 }
 
+static void vsc_tp_shutdown(struct spi_device *spi)
+{
+	struct vsc_tp *tp = spi_get_drvdata(spi);
+
+	platform_device_unregister(tp->pdev);
+
+	mutex_destroy(&tp->mutex);
+
+	vsc_tp_reset(tp);
+
+	free_irq(spi->irq, tp);
+}
+
 static const struct acpi_device_id vsc_tp_acpi_ids[] = {
 	{ "INTC1009" }, /* Raptor Lake */
 	{ "INTC1058" }, /* Tiger Lake */
@@ -580,6 +593,7 @@ MODULE_DEVICE_TABLE(acpi, vsc_tp_acpi_ids);
 static struct spi_driver vsc_tp_driver = {
 	.probe = vsc_tp_probe,
 	.remove = vsc_tp_remove,
+	.shutdown = vsc_tp_shutdown,
 	.driver = {
 		.name = "vsc-tp",
 		.acpi_match_table = vsc_tp_acpi_ids,
diff --git a/drivers/misc/nsm.c b/drivers/misc/nsm.c
index 0eaa3b4484..ef7b327423 100644
--- a/drivers/misc/nsm.c
+++ b/drivers/misc/nsm.c
@@ -494,7 +494,6 @@ static struct virtio_driver virtio_nsm_driver = {
 	.feature_table_legacy      = 0,
 	.feature_table_size_legacy = 0,
 	.driver.name               = KBUILD_MODNAME,
-	.driver.owner              = THIS_MODULE,
 	.id_table                  = id_table,
 	.probe                     = nsm_device_probe,
 	.remove                    = nsm_device_remove,
diff --git a/drivers/misc/ntsync.c b/drivers/misc/ntsync.c
new file mode 100644
index 0000000000..3c2f743c58
--- /dev/null
+++ b/drivers/misc/ntsync.c
@@ -0,0 +1,249 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * ntsync.c - Kernel driver for NT synchronization primitives
+ *
+ * Copyright (C) 2024 Elizabeth Figura <zfigura@codeweavers.com>
+ */
+
+#include <linux/anon_inodes.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/overflow.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <uapi/linux/ntsync.h>
+
+#define NTSYNC_NAME	"ntsync"
+
+enum ntsync_type {
+	NTSYNC_TYPE_SEM,
+};
+
+/*
+ * Individual synchronization primitives are represented by
+ * struct ntsync_obj, and each primitive is backed by a file.
+ *
+ * The whole namespace is represented by a struct ntsync_device also
+ * backed by a file.
+ *
+ * Both rely on struct file for reference counting. Individual
+ * ntsync_obj objects take a reference to the device when created.
+ */
+
+struct ntsync_obj {
+	spinlock_t lock;
+
+	enum ntsync_type type;
+
+	struct file *file;
+	struct ntsync_device *dev;
+
+	/* The following fields are protected by the object lock. */
+	union {
+		struct {
+			__u32 count;
+			__u32 max;
+		} sem;
+	} u;
+};
+
+struct ntsync_device {
+	struct file *file;
+};
+
+/*
+ * Actually change the semaphore state, returning -EOVERFLOW if it is made
+ * invalid.
+ */
+static int post_sem_state(struct ntsync_obj *sem, __u32 count)
+{
+	__u32 sum;
+
+	lockdep_assert_held(&sem->lock);
+
+	if (check_add_overflow(sem->u.sem.count, count, &sum) ||
+	    sum > sem->u.sem.max)
+		return -EOVERFLOW;
+
+	sem->u.sem.count = sum;
+	return 0;
+}
+
+static int ntsync_sem_post(struct ntsync_obj *sem, void __user *argp)
+{
+	__u32 __user *user_args = argp;
+	__u32 prev_count;
+	__u32 args;
+	int ret;
+
+	if (copy_from_user(&args, argp, sizeof(args)))
+		return -EFAULT;
+
+	if (sem->type != NTSYNC_TYPE_SEM)
+		return -EINVAL;
+
+	spin_lock(&sem->lock);
+
+	prev_count = sem->u.sem.count;
+	ret = post_sem_state(sem, args);
+
+	spin_unlock(&sem->lock);
+
+	if (!ret && put_user(prev_count, user_args))
+		ret = -EFAULT;
+
+	return ret;
+}
+
+static int ntsync_obj_release(struct inode *inode, struct file *file)
+{
+	struct ntsync_obj *obj = file->private_data;
+
+	fput(obj->dev->file);
+	kfree(obj);
+
+	return 0;
+}
+
+static long ntsync_obj_ioctl(struct file *file, unsigned int cmd,
+			     unsigned long parm)
+{
+	struct ntsync_obj *obj = file->private_data;
+	void __user *argp = (void __user *)parm;
+
+	switch (cmd) {
+	case NTSYNC_IOC_SEM_POST:
+		return ntsync_sem_post(obj, argp);
+	default:
+		return -ENOIOCTLCMD;
+	}
+}
+
+static const struct file_operations ntsync_obj_fops = {
+	.owner		= THIS_MODULE,
+	.release	= ntsync_obj_release,
+	.unlocked_ioctl	= ntsync_obj_ioctl,
+	.compat_ioctl	= compat_ptr_ioctl,
+	.llseek		= no_llseek,
+};
+
+static struct ntsync_obj *ntsync_alloc_obj(struct ntsync_device *dev,
+					   enum ntsync_type type)
+{
+	struct ntsync_obj *obj;
+
+	obj = kzalloc(sizeof(*obj), GFP_KERNEL);
+	if (!obj)
+		return NULL;
+	obj->type = type;
+	obj->dev = dev;
+	get_file(dev->file);
+	spin_lock_init(&obj->lock);
+
+	return obj;
+}
+
+static int ntsync_obj_get_fd(struct ntsync_obj *obj)
+{
+	struct file *file;
+	int fd;
+
+	fd = get_unused_fd_flags(O_CLOEXEC);
+	if (fd < 0)
+		return fd;
+	file = anon_inode_getfile("ntsync", &ntsync_obj_fops, obj, O_RDWR);
+	if (IS_ERR(file)) {
+		put_unused_fd(fd);
+		return PTR_ERR(file);
+	}
+	obj->file = file;
+	fd_install(fd, file);
+
+	return fd;
+}
+
+static int ntsync_create_sem(struct ntsync_device *dev, void __user *argp)
+{
+	struct ntsync_sem_args __user *user_args = argp;
+	struct ntsync_sem_args args;
+	struct ntsync_obj *sem;
+	int fd;
+
+	if (copy_from_user(&args, argp, sizeof(args)))
+		return -EFAULT;
+
+	if (args.count > args.max)
+		return -EINVAL;
+
+	sem = ntsync_alloc_obj(dev, NTSYNC_TYPE_SEM);
+	if (!sem)
+		return -ENOMEM;
+	sem->u.sem.count = args.count;
+	sem->u.sem.max = args.max;
+	fd = ntsync_obj_get_fd(sem);
+	if (fd < 0) {
+		kfree(sem);
+		return fd;
+	}
+
+	return put_user(fd, &user_args->sem);
+}
+
+static int ntsync_char_open(struct inode *inode, struct file *file)
+{
+	struct ntsync_device *dev;
+
+	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	file->private_data = dev;
+	dev->file = file;
+	return nonseekable_open(inode, file);
+}
+
+static int ntsync_char_release(struct inode *inode, struct file *file)
+{
+	struct ntsync_device *dev = file->private_data;
+
+	kfree(dev);
+
+	return 0;
+}
+
+static long ntsync_char_ioctl(struct file *file, unsigned int cmd,
+			      unsigned long parm)
+{
+	struct ntsync_device *dev = file->private_data;
+	void __user *argp = (void __user *)parm;
+
+	switch (cmd) {
+	case NTSYNC_IOC_CREATE_SEM:
+		return ntsync_create_sem(dev, argp);
+	default:
+		return -ENOIOCTLCMD;
+	}
+}
+
+static const struct file_operations ntsync_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ntsync_char_open,
+	.release	= ntsync_char_release,
+	.unlocked_ioctl	= ntsync_char_ioctl,
+	.compat_ioctl	= compat_ptr_ioctl,
+	.llseek		= no_llseek,
+};
+
+static struct miscdevice ntsync_misc = {
+	.minor		= MISC_DYNAMIC_MINOR,
+	.name		= NTSYNC_NAME,
+	.fops		= &ntsync_fops,
+};
+
+module_misc_device(ntsync_misc);
+
+MODULE_AUTHOR("Elizabeth Figura <zfigura@codeweavers.com>");
+MODULE_DESCRIPTION("Kernel driver for NT synchronization primitives");
+MODULE_LICENSE("GPL");
diff --git a/drivers/misc/pvpanic/pvpanic.c b/drivers/misc/pvpanic/pvpanic.c
index df3457ce1c..17c0eb5494 100644
--- a/drivers/misc/pvpanic/pvpanic.c
+++ b/drivers/misc/pvpanic/pvpanic.c
@@ -19,6 +19,7 @@
 #include <linux/module.h>
 #include <linux/panic_notifier.h>
 #include <linux/platform_device.h>
+#include <linux/reboot.h>
 #include <linux/spinlock.h>
 #include <linux/sysfs.h>
 #include <linux/types.h>
@@ -35,6 +36,7 @@ struct pvpanic_instance {
 	void __iomem *base;
 	unsigned int capability;
 	unsigned int events;
+	struct sys_off_handler *sys_off;
 	struct list_head list;
 };
 
@@ -78,6 +80,39 @@ static struct notifier_block pvpanic_panic_nb = {
 	.priority = INT_MAX,
 };
 
+static int pvpanic_sys_off(struct sys_off_data *data)
+{
+	pvpanic_send_event(PVPANIC_SHUTDOWN);
+
+	return NOTIFY_DONE;
+}
+
+static void pvpanic_synchronize_sys_off_handler(struct device *dev, struct pvpanic_instance *pi)
+{
+	/* The kernel core has logic to fall back to system halt if no
+	 * sys_off_handler is registered.
+	 * When the pvpanic sys_off_handler is disabled via sysfs the kernel
+	 * should use that fallback logic, so the handler needs to be unregistered.
+	 */
+
+	struct sys_off_handler *sys_off;
+
+	if (!(pi->events & PVPANIC_SHUTDOWN) == !pi->sys_off)
+		return;
+
+	if (!pi->sys_off) {
+		sys_off = register_sys_off_handler(SYS_OFF_MODE_POWER_OFF, SYS_OFF_PRIO_LOW,
+						   pvpanic_sys_off, NULL);
+		if (IS_ERR(sys_off))
+			dev_warn(dev, "Could not register sys_off_handler: %pe\n", sys_off);
+		else
+			pi->sys_off = sys_off;
+	} else {
+		unregister_sys_off_handler(pi->sys_off);
+		pi->sys_off = NULL;
+	}
+}
+
 static void pvpanic_remove(void *param)
 {
 	struct pvpanic_instance *pi_cur, *pi_next;
@@ -91,6 +126,8 @@ static void pvpanic_remove(void *param)
 		}
 	}
 	spin_unlock(&pvpanic_lock);
+
+	unregister_sys_off_handler(pi->sys_off);
 }
 
 static ssize_t capability_show(struct device *dev, struct device_attribute *attr, char *buf)
@@ -123,6 +160,7 @@ static ssize_t events_store(struct device *dev, struct device_attribute *attr,
 		return -EINVAL;
 
 	pi->events = tmp;
+	pvpanic_synchronize_sys_off_handler(dev, pi);
 
 	return count;
 }
@@ -156,12 +194,15 @@ int devm_pvpanic_probe(struct device *dev, void __iomem *base)
 		return -ENOMEM;
 
 	pi->base = base;
-	pi->capability = PVPANIC_PANICKED | PVPANIC_CRASH_LOADED;
+	pi->capability = PVPANIC_PANICKED | PVPANIC_CRASH_LOADED | PVPANIC_SHUTDOWN;
 
 	/* initlize capability by RDPT */
 	pi->capability &= ioread8(base);
 	pi->events = pi->capability;
 
+	pi->sys_off = NULL;
+	pvpanic_synchronize_sys_off_handler(dev, pi);
+
 	spin_lock(&pvpanic_lock);
 	list_add(&pi->list, &pvpanic_list);
 	spin_unlock(&pvpanic_lock);
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 47ebe80bf8..c4f963cf96 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -563,7 +563,7 @@ long st_kim_stop(void *kim_data)
 
 static int version_show(struct seq_file *s, void *unused)
 {
-	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;
+	struct kim_data_s *kim_gdata = s->private;
 	seq_printf(s, "%04X %d.%d.%d\n", kim_gdata->version.full,
 			kim_gdata->version.chip, kim_gdata->version.maj_ver,
 			kim_gdata->version.min_ver);
@@ -572,7 +572,7 @@ static int version_show(struct seq_file *s, void *unused)
 
 static int list_show(struct seq_file *s, void *unused)
 {
-	struct kim_data_s *kim_gdata = (struct kim_data_s *)s->private;
+	struct kim_data_s *kim_gdata = s->private;
 	kim_st_list_protocols(kim_gdata->core_data, s);
 	return 0;
 }
diff --git a/drivers/misc/tifm_core.c b/drivers/misc/tifm_core.c
index d2eb31f39a..fd9c3cbbc5 100644
--- a/drivers/misc/tifm_core.c
+++ b/drivers/misc/tifm_core.c
@@ -148,7 +148,7 @@ static struct attribute *tifm_dev_attrs[] = {
 };
 ATTRIBUTE_GROUPS(tifm_dev);
 
-static struct bus_type tifm_bus_type = {
+static const struct bus_type tifm_bus_type = {
 	.name      = "tifm",
 	.dev_groups = tifm_dev_groups,
 	.match     = tifm_bus_match,
diff --git a/drivers/misc/tps6594-pfsm.c b/drivers/misc/tps6594-pfsm.c
index 88dcac8148..9bcca1856b 100644
--- a/drivers/misc/tps6594-pfsm.c
+++ b/drivers/misc/tps6594-pfsm.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * PFSM (Pre-configurable Finite State Machine) driver for TI TPS6594/TPS6593/LP8764 PMICs
+ * PFSM (Pre-configurable Finite State Machine) driver for TI TPS65224/TPS6594/TPS6593/LP8764 PMICs
  *
  * Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
  */
@@ -39,10 +39,12 @@
  *
  * @miscdev: misc device infos
  * @regmap:  regmap for accessing the device registers
+ * @chip_id: chip identifier of the device
  */
 struct tps6594_pfsm {
 	struct miscdevice miscdev;
 	struct regmap *regmap;
+	unsigned long chip_id;
 };
 
 static ssize_t tps6594_pfsm_read(struct file *f, char __user *buf,
@@ -133,21 +135,29 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
 	struct tps6594_pfsm *pfsm = TPS6594_FILE_TO_PFSM(f);
 	struct pmic_state_opt state_opt;
 	void __user *argp = (void __user *)arg;
+	unsigned int regmap_reg, mask;
 	int ret = -ENOIOCTLCMD;
 
 	switch (cmd) {
 	case PMIC_GOTO_STANDBY:
-		/* Disable LP mode */
-		ret = regmap_clear_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
-					TPS6594_BIT_LP_STANDBY_SEL);
-		if (ret)
-			return ret;
+		/* Disable LP mode on TPS6594 Family PMIC */
+		if (pfsm->chip_id != TPS65224) {
+			ret = regmap_clear_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
+						TPS6594_BIT_LP_STANDBY_SEL);
+
+			if (ret)
+				return ret;
+		}
 
 		/* Force trigger */
 		ret = regmap_write_bits(pfsm->regmap, TPS6594_REG_FSM_I2C_TRIGGERS,
 					TPS6594_BIT_TRIGGER_I2C(0), TPS6594_BIT_TRIGGER_I2C(0));
 		break;
 	case PMIC_GOTO_LP_STANDBY:
+		/* TPS65224 does not support LP STANDBY */
+		if (pfsm->chip_id == TPS65224)
+			return ret;
+
 		/* Enable LP mode */
 		ret = regmap_set_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
 				      TPS6594_BIT_LP_STANDBY_SEL);
@@ -169,6 +179,10 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
 				      TPS6594_BIT_NSLEEP1B | TPS6594_BIT_NSLEEP2B);
 		break;
 	case PMIC_SET_MCU_ONLY_STATE:
+		/* TPS65224 does not support MCU_ONLY_STATE */
+		if (pfsm->chip_id == TPS65224)
+			return ret;
+
 		if (copy_from_user(&state_opt, argp, sizeof(state_opt)))
 			return -EFAULT;
 
@@ -192,14 +206,20 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
 			return -EFAULT;
 
 		/* Configure wake-up destination */
+		if (pfsm->chip_id == TPS65224) {
+			regmap_reg = TPS65224_REG_STARTUP_CTRL;
+			mask = TPS65224_MASK_STARTUP_DEST;
+		} else {
+			regmap_reg = TPS6594_REG_RTC_CTRL_2;
+			mask = TPS6594_MASK_STARTUP_DEST;
+		}
+
 		if (state_opt.mcu_only_startup_dest)
-			ret = regmap_write_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
-						TPS6594_MASK_STARTUP_DEST,
-						TPS6594_STARTUP_DEST_MCU_ONLY);
+			ret = regmap_write_bits(pfsm->regmap, regmap_reg,
+						mask, TPS6594_STARTUP_DEST_MCU_ONLY);
 		else
-			ret = regmap_write_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
-						TPS6594_MASK_STARTUP_DEST,
-						TPS6594_STARTUP_DEST_ACTIVE);
+			ret = regmap_write_bits(pfsm->regmap, regmap_reg,
+						mask, TPS6594_STARTUP_DEST_ACTIVE);
 		if (ret)
 			return ret;
 
@@ -211,7 +231,8 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
 
 		/* Modify NSLEEP1-2 bits */
 		ret = regmap_clear_bits(pfsm->regmap, TPS6594_REG_FSM_NSLEEP_TRIGGERS,
-					TPS6594_BIT_NSLEEP2B);
+					pfsm->chip_id == TPS65224 ?
+					TPS6594_BIT_NSLEEP1B : TPS6594_BIT_NSLEEP2B);
 		break;
 	}
 
@@ -262,6 +283,7 @@ static int tps6594_pfsm_probe(struct platform_device *pdev)
 					    tps->chip_id, tps->reg);
 	pfsm->miscdev.fops = &tps6594_pfsm_fops;
 	pfsm->miscdev.parent = dev->parent;
+	pfsm->chip_id = tps->chip_id;
 
 	for (i = 0 ; i < pdev->num_resources ; i++) {
 		irq = platform_get_irq_byname(pdev, pdev->resource[i].name);
diff --git a/drivers/misc/vmw_vmci/vmci_guest.c b/drivers/misc/vmw_vmci/vmci_guest.c
index 1300ccab3d..476af89e75 100644
--- a/drivers/misc/vmw_vmci/vmci_guest.c
+++ b/drivers/misc/vmw_vmci/vmci_guest.c
@@ -789,8 +789,7 @@ static int vmci_guest_probe_device(struct pci_dev *pdev,
 	error = pci_alloc_irq_vectors(pdev, num_irq_vectors, num_irq_vectors,
 				      PCI_IRQ_MSIX);
 	if (error < 0) {
-		error = pci_alloc_irq_vectors(pdev, 1, 1,
-				PCI_IRQ_MSIX | PCI_IRQ_MSI | PCI_IRQ_LEGACY);
+		error = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_ALL_TYPES);
 		if (error < 0)
 			goto err_unsubscribe_event;
 	} else {