diff --git a/Makefile b/Makefile
index 45040bbcf496..b37b6d2eeca1 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
 VERSION = 5
 PATCHLEVEL = 19
 SUBLEVEL = 0
-EXTRAVERSION = -rc1
+EXTRAVERSION = -rc2
 NAME = Superb Owl
 
 # *DOCUMENTATION*
diff --git a/drivers/platform/mellanox/Kconfig b/drivers/platform/mellanox/Kconfig
index 72df4b8f4dd8..09c7829e95c4 100644
--- a/drivers/platform/mellanox/Kconfig
+++ b/drivers/platform/mellanox/Kconfig
@@ -85,7 +85,7 @@ config NVSW_SN2201
 	depends on I2C
 	depends on REGMAP_I2C
 	help
-	  This driver provides support for the Nvidia SN2201 platfom.
+	  This driver provides support for the Nvidia SN2201 platform.
 	  The SN2201 is a highly integrated for one rack unit system with
 	  L3 management switches. It has 48 x 1Gbps RJ45 + 4 x 100G QSFP28
 	  ports in a compact 1RU form factor. The system also including a
diff --git a/drivers/platform/mellanox/nvsw-sn2201.c b/drivers/platform/mellanox/nvsw-sn2201.c
index 0bcdc7c75007..2923daf63b75 100644
--- a/drivers/platform/mellanox/nvsw-sn2201.c
+++ b/drivers/platform/mellanox/nvsw-sn2201.c
@@ -326,7 +326,7 @@ static struct resource nvsw_sn2201_lpc_res[] = {
 };
 
 /* SN2201 I2C platform data. */
-struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
+static struct mlxreg_core_hotplug_platform_data nvsw_sn2201_i2c_data = {
 	.irq = NVSW_SN2201_CPLD_SYSIRQ,
 };
 
diff --git a/drivers/platform/x86/barco-p50-gpio.c b/drivers/platform/x86/barco-p50-gpio.c
index 05534287bc26..8dd672339485 100644
--- a/drivers/platform/x86/barco-p50-gpio.c
+++ b/drivers/platform/x86/barco-p50-gpio.c
@@ -405,11 +405,14 @@ MODULE_DEVICE_TABLE(dmi, dmi_ids);
 static int __init p50_module_init(void)
 {
 	struct resource res = DEFINE_RES_IO(P50_GPIO_IO_PORT_BASE, P50_PORT_CMD + 1);
+	int ret;
 
 	if (!dmi_first_match(dmi_ids))
 		return -ENODEV;
 
-	platform_driver_register(&p50_gpio_driver);
+	ret = platform_driver_register(&p50_gpio_driver);
+	if (ret)
+		return ret;
 
 	gpio_pdev = platform_device_register_simple(DRIVER_NAME, PLATFORM_DEVID_NONE, &res, 1);
 	if (IS_ERR(gpio_pdev)) {
diff --git a/drivers/platform/x86/gigabyte-wmi.c b/drivers/platform/x86/gigabyte-wmi.c
index 1ef606e3ef80..497ad2f64a51 100644
--- a/drivers/platform/x86/gigabyte-wmi.c
+++ b/drivers/platform/x86/gigabyte-wmi.c
@@ -140,6 +140,7 @@ static u8 gigabyte_wmi_detect_sensor_usability(struct wmi_device *wdev)
 	}}
 
 static const struct dmi_system_id gigabyte_wmi_known_working_platforms[] = {
+	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B450M DS3H-CF"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B450M S2H V2"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550 AORUS ELITE AX V2"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("B550 AORUS ELITE"),
@@ -156,6 +157,7 @@ static const struct dmi_system_id gigabyte_wmi_known_working_platforms[] = {
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("X570 GAMING X"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("X570 I AORUS PRO WIFI"),
 	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("X570 UD"),
+	DMI_EXACT_MATCH_GIGABYTE_BOARD_NAME("Z690M AORUS ELITE AX DDR4"),
 	{ }
 };
 
diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 667f94bba905..0d8cb22e30df 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -38,6 +38,7 @@ MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4");
 #define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C"
 #define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4"
 #define HP_OMEN_EC_THERMAL_PROFILE_OFFSET 0x95
+#define zero_if_sup(tmp) (zero_insize_support?0:sizeof(tmp)) // use when zero insize is required
 
 /* DMI board names of devices that should use the omen specific path for
  * thermal profiles.
@@ -220,6 +221,7 @@ static struct input_dev *hp_wmi_input_dev;
 static struct platform_device *hp_wmi_platform_dev;
 static struct platform_profile_handler platform_profile_handler;
 static bool platform_profile_support;
+static bool zero_insize_support;
 
 static struct rfkill *wifi_rfkill;
 static struct rfkill *bluetooth_rfkill;
@@ -290,14 +292,16 @@ static int hp_wmi_perform_query(int query, enum hp_wmi_command command,
 	struct bios_return *bios_return;
 	union acpi_object *obj = NULL;
 	struct bios_args *args = NULL;
-	int mid, actual_outsize, ret;
+	int mid, actual_insize, actual_outsize;
 	size_t bios_args_size;
+	int ret;
 
 	mid = encode_outsize_for_pvsz(outsize);
 	if (WARN_ON(mid < 0))
 		return mid;
 
-	bios_args_size = struct_size(args, data, insize);
+	actual_insize = max(insize, 128);
+	bios_args_size = struct_size(args, data, actual_insize);
 	args = kmalloc(bios_args_size, GFP_KERNEL);
 	if (!args)
 		return -ENOMEM;
@@ -374,7 +378,7 @@ static int hp_wmi_read_int(int query)
 	int val = 0, ret;
 
 	ret = hp_wmi_perform_query(query, HPWMI_READ, &val,
-				   0, sizeof(val));
+				   zero_if_sup(val), sizeof(val));
 
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
@@ -410,7 +414,8 @@ static int hp_wmi_get_tablet_mode(void)
 		return -ENODEV;
 
 	ret = hp_wmi_perform_query(HPWMI_SYSTEM_DEVICE_MODE, HPWMI_READ,
-				   system_device_mode, 0, sizeof(system_device_mode));
+				   system_device_mode, zero_if_sup(system_device_mode),
+				   sizeof(system_device_mode));
 	if (ret < 0)
 		return ret;
 
@@ -497,7 +502,7 @@ static int hp_wmi_fan_speed_max_get(void)
 	int val = 0, ret;
 
 	ret = hp_wmi_perform_query(HPWMI_FAN_SPEED_MAX_GET_QUERY, HPWMI_GM,
-				   &val, 0, sizeof(val));
+				   &val, zero_if_sup(val), sizeof(val));
 
 	if (ret)
 		return ret < 0 ? ret : -EINVAL;
@@ -509,7 +514,7 @@ static int __init hp_wmi_bios_2008_later(void)
 {
 	int state = 0;
 	int ret = hp_wmi_perform_query(HPWMI_FEATURE_QUERY, HPWMI_READ, &state,
-				       0, sizeof(state));
+				       zero_if_sup(state), sizeof(state));
 	if (!ret)
 		return 1;
 
@@ -520,7 +525,7 @@ static int __init hp_wmi_bios_2009_later(void)
 {
 	u8 state[128];
 	int ret = hp_wmi_perform_query(HPWMI_FEATURE2_QUERY, HPWMI_READ, &state,
-				       0, sizeof(state));
+				       zero_if_sup(state), sizeof(state));
 	if (!ret)
 		return 1;
 
@@ -598,7 +603,7 @@ static int hp_wmi_rfkill2_refresh(void)
 	int err, i;
 
 	err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
-				   0, sizeof(state));
+				   zero_if_sup(state), sizeof(state));
 	if (err)
 		return err;
 
@@ -1007,7 +1012,7 @@ static int __init hp_wmi_rfkill2_setup(struct platform_device *device)
 	int err, i;
 
 	err = hp_wmi_perform_query(HPWMI_WIRELESS2_QUERY, HPWMI_READ, &state,
-				   0, sizeof(state));
+				   zero_if_sup(state), sizeof(state));
 	if (err)
 		return err < 0 ? err : -EINVAL;
 
@@ -1483,11 +1488,15 @@ static int __init hp_wmi_init(void)
 {
 	int event_capable = wmi_has_guid(HPWMI_EVENT_GUID);
 	int bios_capable = wmi_has_guid(HPWMI_BIOS_GUID);
-	int err;
+	int err, tmp = 0;
 
 	if (!bios_capable && !event_capable)
 		return -ENODEV;
 
+	if (hp_wmi_perform_query(HPWMI_HARDWARE_QUERY, HPWMI_READ, &tmp,
+				 sizeof(tmp), sizeof(tmp)) == HPWMI_RET_INVALID_PARAMETERS)
+		zero_insize_support = true;
+
 	if (event_capable) {
 		err = hp_wmi_input_setup();
 		if (err)
diff --git a/drivers/platform/x86/intel/hid.c b/drivers/platform/x86/intel/hid.c
index 216d31e3403d..79cff1fc675c 100644
--- a/drivers/platform/x86/intel/hid.c
+++ b/drivers/platform/x86/intel/hid.c
@@ -122,6 +122,12 @@ static const struct dmi_system_id dmi_vgbs_allow_list[] = {
 			DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x360 Convertible 15-df0xxx"),
 		},
 	},
+	{
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Microsoft Corporation"),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Surface Go"),
+		},
+	},
 	{ }
 };
 
diff --git a/drivers/platform/x86/intel/pmc/core.c b/drivers/platform/x86/intel/pmc/core.c
index edaf22e5ae98..40183bda7894 100644
--- a/drivers/platform/x86/intel/pmc/core.c
+++ b/drivers/platform/x86/intel/pmc/core.c
@@ -1912,6 +1912,7 @@ static const struct x86_cpu_id intel_pmc_core_ids[] = {
 	X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE,		&tgl_reg_map),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&tgl_reg_map),
 	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE,		&adl_reg_map),
+	X86_MATCH_INTEL_FAM6_MODEL(RAPTORLAKE_P,        &tgl_reg_map),
 	{}
 };
 
diff --git a/drivers/platform/x86/intel/pmt/crashlog.c b/drivers/platform/x86/intel/pmt/crashlog.c
index 34daf9df168b..ace1239bc0a0 100644
--- a/drivers/platform/x86/intel/pmt/crashlog.c
+++ b/drivers/platform/x86/intel/pmt/crashlog.c
@@ -282,7 +282,7 @@ static int pmt_crashlog_probe(struct auxiliary_device *auxdev,
 	auxiliary_set_drvdata(auxdev, priv);
 
 	for (i = 0; i < intel_vsec_dev->num_resources; i++) {
-		struct intel_pmt_entry *entry = &priv->entry[i].entry;
+		struct intel_pmt_entry *entry = &priv->entry[priv->num_entries].entry;
 
 		ret = intel_pmt_dev_create(entry, &pmt_crashlog_ns, intel_vsec_dev, i);
 		if (ret < 0)
diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c
index c85d9a378325..8f2e003e0590 100644
--- a/fs/cifs/cifsfs.c
+++ b/fs/cifs/cifsfs.c
@@ -1086,7 +1086,7 @@ struct file_system_type cifs_fs_type = {
 };
 MODULE_ALIAS_FS("cifs");
 
-static struct file_system_type smb3_fs_type = {
+struct file_system_type smb3_fs_type = {
 	.owner = THIS_MODULE,
 	.name = "smb3",
 	.init_fs_context = smb3_init_fs_context,
diff --git a/fs/cifs/cifsfs.h b/fs/cifs/cifsfs.h
index dd7e070ca243..b17be47a8e59 100644
--- a/fs/cifs/cifsfs.h
+++ b/fs/cifs/cifsfs.h
@@ -38,7 +38,7 @@ static inline unsigned long cifs_get_time(struct dentry *dentry)
 	return (unsigned long) dentry->d_fsdata;
 }
 
-extern struct file_system_type cifs_fs_type;
+extern struct file_system_type cifs_fs_type, smb3_fs_type;
 extern const struct address_space_operations cifs_addr_ops;
 extern const struct address_space_operations cifs_addr_ops_smallbuf;
 
diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c
index d46702f5a663..1849e3411487 100644
--- a/fs/cifs/connect.c
+++ b/fs/cifs/connect.c
@@ -97,6 +97,10 @@ static int reconn_set_ipaddr_from_hostname(struct TCP_Server_Info *server)
 	if (!server->hostname)
 		return -EINVAL;
 
+	/* if server hostname isn't populated, there's nothing to do here */
+	if (server->hostname[0] == '\0')
+		return 0;
+
 	len = strlen(server->hostname) + 3;
 
 	unc = kmalloc(len, GFP_KERNEL);
diff --git a/fs/cifs/misc.c b/fs/cifs/misc.c
index cbc3b433f502..c69e1240d730 100644
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c
@@ -1211,18 +1211,23 @@ static struct super_block *__cifs_get_super(void (*f)(struct super_block *, void
 		.data = data,
 		.sb = NULL,
 	};
+	struct file_system_type **fs_type = (struct file_system_type *[]) {
+		&cifs_fs_type, &smb3_fs_type, NULL,
+	};
 
-	iterate_supers_type(&cifs_fs_type, f, &sd);
-
-	if (!sd.sb)
-		return ERR_PTR(-EINVAL);
-	/*
-	 * Grab an active reference in order to prevent automounts (DFS links)
-	 * of expiring and then freeing up our cifs superblock pointer while
-	 * we're doing failover.
-	 */
-	cifs_sb_active(sd.sb);
-	return sd.sb;
+	for (; *fs_type; fs_type++) {
+		iterate_supers_type(*fs_type, f, &sd);
+		if (sd.sb) {
+			/*
+			 * Grab an active reference in order to prevent automounts (DFS links)
+			 * of expiring and then freeing up our cifs superblock pointer while
+			 * we're doing failover.
+			 */
+			cifs_sb_active(sd.sb);
+			return sd.sb;
+		}
+	}
+	return ERR_PTR(-EINVAL);
 }
 
 static void __cifs_put_super(struct super_block *sb)
diff --git a/fs/cifs/sess.c b/fs/cifs/sess.c
index 3b7915af1f62..0bece97547d4 100644
--- a/fs/cifs/sess.c
+++ b/fs/cifs/sess.c
@@ -301,7 +301,10 @@ cifs_ses_add_channel(struct cifs_sb_info *cifs_sb, struct cifs_ses *ses,
 	/* Auth */
 	ctx.domainauto = ses->domainAuto;
 	ctx.domainname = ses->domainName;
-	ctx.server_hostname = ses->server->hostname;
+
+	/* no hostname for extra channels */
+	ctx.server_hostname = "";
+
 	ctx.username = ses->user_name;
 	ctx.password = ses->password;
 	ctx.sectype = ses->sectype;
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 0e8c85249579..eaf975f1ad89 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -288,6 +288,9 @@ smb2_reconnect(__le16 smb2_command, struct cifs_tcon *tcon,
 			mutex_unlock(&ses->session_mutex);
 			rc = -EHOSTDOWN;
 			goto failed;
+		} else if (rc) {
+			mutex_unlock(&ses->session_mutex);
+			goto out;
 		}
 	} else {
 		mutex_unlock(&ses->session_mutex);
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 7fee9b6cfede..62e75dd40d9a 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -406,7 +406,7 @@ alloc_workqueue(const char *fmt, unsigned int flags, int max_active, ...);
  * alloc_ordered_workqueue - allocate an ordered workqueue
  * @fmt: printf format for the name of the workqueue
  * @flags: WQ_* flags (only WQ_FREEZABLE and WQ_MEM_RECLAIM are meaningful)
- * @args...: args for @fmt
+ * @args: args for @fmt
  *
  * Allocate an ordered workqueue.  An ordered workqueue executes at
  * most one work item at any given time in the queued order.  They are
@@ -445,7 +445,7 @@ extern bool mod_delayed_work_on(int cpu, struct workqueue_struct *wq,
 			struct delayed_work *dwork, unsigned long delay);
 extern bool queue_rcu_work(struct workqueue_struct *wq, struct rcu_work *rwork);
 
-extern void flush_workqueue(struct workqueue_struct *wq);
+extern void __flush_workqueue(struct workqueue_struct *wq);
 extern void drain_workqueue(struct workqueue_struct *wq);
 
 extern int schedule_on_each_cpu(work_func_t func);
@@ -563,15 +563,23 @@ static inline bool schedule_work(struct work_struct *work)
 	return queue_work(system_wq, work);
 }
 
+/*
+ * Detect attempt to flush system-wide workqueues at compile time when possible.
+ *
+ * See https://lkml.kernel.org/r/49925af7-78a8-a3dd-bce6-cfc02e1a9236@I-love.SAKURA.ne.jp
+ * for reasons and steps for converting system-wide workqueues into local workqueues.
+ */
+extern void __warn_flushing_systemwide_wq(void)
+	__compiletime_warning("Please avoid flushing system-wide workqueues.");
+
 /**
  * flush_scheduled_work - ensure that any scheduled work has run to completion.
  *
  * Forces execution of the kernel-global workqueue and blocks until its
  * completion.
  *
- * Think twice before calling this function!  It's very easy to get into
- * trouble if you don't take great care.  Either of the following situations
- * will lead to deadlock:
+ * It's very easy to get into trouble if you don't take great care.
+ * Either of the following situations will lead to deadlock:
  *
  *	One of the work items currently on the workqueue needs to acquire
  *	a lock held by your code or its caller.
@@ -586,11 +594,51 @@ static inline bool schedule_work(struct work_struct *work)
  * need to know that a particular work item isn't queued and isn't running.
  * In such cases you should use cancel_delayed_work_sync() or
  * cancel_work_sync() instead.
+ *
+ * Please stop calling this function! A conversion to stop flushing system-wide
+ * workqueues is in progress. This function will be removed after all in-tree
+ * users stopped calling this function.
  */
-static inline void flush_scheduled_work(void)
-{
-	flush_workqueue(system_wq);
-}
+/*
+ * The background of commit 771c035372a036f8 ("deprecate the
+ * '__deprecated' attribute warnings entirely and for good") is that,
+ * since Linus builds all modules between every single pull he does,
+ * the standard kernel build needs to be _clean_ in order to be able to
+ * notice when new problems happen. Therefore, don't emit warning while
+ * there are in-tree users.
+ */
+#define flush_scheduled_work()						\
+({									\
+	if (0)								\
+		__warn_flushing_systemwide_wq();			\
+	__flush_workqueue(system_wq);					\
+})
+
+/*
+ * Although there is no longer in-tree caller, for now just emit warning
+ * in order to give out-of-tree callers time to update.
+ */
+#define flush_workqueue(wq)						\
+({									\
+	struct workqueue_struct *_wq = (wq);				\
+									\
+	if ((__builtin_constant_p(_wq == system_wq) &&			\
+	     _wq == system_wq) ||					\
+	    (__builtin_constant_p(_wq == system_highpri_wq) &&		\
+	     _wq == system_highpri_wq) ||				\
+	    (__builtin_constant_p(_wq == system_long_wq) &&		\
+	     _wq == system_long_wq) ||					\
+	    (__builtin_constant_p(_wq == system_unbound_wq) &&		\
+	     _wq == system_unbound_wq) ||				\
+	    (__builtin_constant_p(_wq == system_freezable_wq) &&	\
+	     _wq == system_freezable_wq) ||				\
+	    (__builtin_constant_p(_wq == system_power_efficient_wq) &&	\
+	     _wq == system_power_efficient_wq) ||			\
+	    (__builtin_constant_p(_wq == system_freezable_power_efficient_wq) && \
+	     _wq == system_freezable_power_efficient_wq))		\
+		__warn_flushing_systemwide_wq();			\
+	__flush_workqueue(_wq);						\
+})
 
 /**
  * schedule_delayed_work_on - queue work in global workqueue on CPU after delay
diff --git a/include/trace/events/workqueue.h b/include/trace/events/workqueue.h
index 6154a2e72bce..262d52021c23 100644
--- a/include/trace/events/workqueue.h
+++ b/include/trace/events/workqueue.h
@@ -22,7 +22,7 @@ struct pool_workqueue;
  */
 TRACE_EVENT(workqueue_queue_work,
 
-	TP_PROTO(unsigned int req_cpu, struct pool_workqueue *pwq,
+	TP_PROTO(int req_cpu, struct pool_workqueue *pwq,
 		 struct work_struct *work),
 
 	TP_ARGS(req_cpu, pwq, work),
@@ -31,8 +31,8 @@ TRACE_EVENT(workqueue_queue_work,
 		__field( void *,	work	)
 		__field( void *,	function)
 		__string( workqueue,	pwq->wq->name)
-		__field( unsigned int,	req_cpu	)
-		__field( unsigned int,	cpu	)
+		__field( int,	req_cpu	)
+		__field( int,	cpu	)
 	),
 
 	TP_fast_assign(
@@ -43,7 +43,7 @@ TRACE_EVENT(workqueue_queue_work,
 		__entry->cpu		= pwq->pool->cpu;
 	),
 
-	TP_printk("work struct=%p function=%ps workqueue=%s req_cpu=%u cpu=%u",
+	TP_printk("work struct=%p function=%ps workqueue=%s req_cpu=%d cpu=%d",
 		  __entry->work, __entry->function, __get_str(workqueue),
 		  __entry->req_cpu, __entry->cpu)
 );
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 20c5305f87e2..8d33b7d2260c 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -2792,13 +2792,13 @@ static bool flush_workqueue_prep_pwqs(struct workqueue_struct *wq,
 }
 
 /**
- * flush_workqueue - ensure that any scheduled work has run to completion.
+ * __flush_workqueue - ensure that any scheduled work has run to completion.
  * @wq: workqueue to flush
  *
  * This function sleeps until all work items which were queued on entry
  * have finished execution, but it is not livelocked by new incoming ones.
  */
-void flush_workqueue(struct workqueue_struct *wq)
+void __flush_workqueue(struct workqueue_struct *wq)
 {
 	struct wq_flusher this_flusher = {
 		.list = LIST_HEAD_INIT(this_flusher.list),
@@ -2947,7 +2947,7 @@ void flush_workqueue(struct workqueue_struct *wq)
 out_unlock:
 	mutex_unlock(&wq->mutex);
 }
-EXPORT_SYMBOL(flush_workqueue);
+EXPORT_SYMBOL(__flush_workqueue);
 
 /**
  * drain_workqueue - drain a workqueue
@@ -2975,7 +2975,7 @@ void drain_workqueue(struct workqueue_struct *wq)
 		wq->flags |= __WQ_DRAINING;
 	mutex_unlock(&wq->mutex);
 reflush:
-	flush_workqueue(wq);
+	__flush_workqueue(wq);
 
 	mutex_lock(&wq->mutex);
 
@@ -6116,3 +6116,11 @@ void __init workqueue_init(void)
 	wq_online = true;
 	wq_watchdog_init();
 }
+
+/*
+ * Despite the naming, this is a no-op function which is here only for avoiding
+ * link error. Since compile-time warning may fail to catch, we will need to
+ * emit run-time warning from __flush_workqueue().
+ */
+void __warn_flushing_systemwide_wq(void) { }
+EXPORT_SYMBOL(__warn_flushing_systemwide_wq);
diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index 1f01ac65c0cd..cac070aee791 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -251,8 +251,8 @@ $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE
 
 # To make this rule robust against "Argument list too long" error,
 # ensure to add $(obj)/ prefix by a shell command.
-cmd_mod = echo $(call real-search, $*.o, .o, -objs -y -m) | \
-	$(AWK) -v RS='( |\n)' '!x[$$0]++ { print("$(obj)/"$$0) }' > $@
+cmd_mod = printf '%s\n' $(call real-search, $*.o, .o, -objs -y -m) | \
+	$(AWK) '!x[$$0]++ { print("$(obj)/"$$0) }' > $@
 
 $(obj)/%.mod: FORCE
 	$(call if_changed,mod)
diff --git a/scripts/gdb/linux/config.py b/scripts/gdb/linux/config.py
index 90e1565b1967..8843ab3cbadd 100644
--- a/scripts/gdb/linux/config.py
+++ b/scripts/gdb/linux/config.py
@@ -24,9 +24,9 @@ class LxConfigDump(gdb.Command):
             filename = arg
 
         try:
-            py_config_ptr = gdb.parse_and_eval("kernel_config_data + 8")
-            py_config_size = gdb.parse_and_eval(
-                    "sizeof(kernel_config_data) - 1 - 8 * 2")
+            py_config_ptr = gdb.parse_and_eval("&kernel_config_data")
+            py_config_ptr_end = gdb.parse_and_eval("&kernel_config_data_end")
+            py_config_size = py_config_ptr_end - py_config_ptr
         except gdb.error as e:
             raise gdb.GdbError("Can't find config, enable CONFIG_IKCONFIG?")
 
diff --git a/scripts/nsdeps b/scripts/nsdeps
index 04c4b96e95ec..f1718cc0d700 100644
--- a/scripts/nsdeps
+++ b/scripts/nsdeps
@@ -34,9 +34,8 @@ generate_deps() {
 	local mod=${1%.ko:}
 	shift
 	local namespaces="$*"
-	local mod_source_files="`cat $mod.mod | sed -n 1p                      \
-					      | sed -e 's/\.o/\.c/g'           \
-					      | sed "s|[^ ]* *|${src_prefix}&|g"`"
+	local mod_source_files=$(sed "s|^\(.*\)\.o$|${src_prefix}\1.c|" $mod.mod)
+
 	for ns in $namespaces; do
 		echo "Adding namespace $ns to module $mod.ko."
 		generate_deps_for_ns $ns "$mod_source_files"