diff --git a/Documentation/driver-api/firmware/fallback-mechanisms.rst b/Documentation/driver-api/firmware/fallback-mechanisms.rst
index 4055ac76b288cf9ff72b70dd34a472257a03df63..f353783ae0be5d2823c285538eeb7a898b4f0408 100644
--- a/Documentation/driver-api/firmware/fallback-mechanisms.rst
+++ b/Documentation/driver-api/firmware/fallback-mechanisms.rst
@@ -112,7 +112,7 @@ Since a device is created for the sysfs interface to help load firmware as a
 fallback mechanism userspace can be informed of the addition of the device by
 relying on kobject uevents. The addition of the device into the device
 hierarchy means the fallback mechanism for firmware loading has been initiated.
-For details of implementation refer to _request_firmware_load(), in particular
+For details of implementation refer to fw_load_sysfs_fallback(), in particular
 on the use of dev_set_uevent_suppress() and kobject_uevent().
 
 The kernel's kobject uevent mechanism is implemented in lib/kobject_uevent.c,
diff --git a/Documentation/driver-api/firmware/request_firmware.rst b/Documentation/driver-api/firmware/request_firmware.rst
index cc0aea88082441a0a6625b76cf0012c8103a4137..cf4516dfbf964b0ada60136fc49579df6c113823 100644
--- a/Documentation/driver-api/firmware/request_firmware.rst
+++ b/Documentation/driver-api/firmware/request_firmware.rst
@@ -44,6 +44,20 @@ request_firmware_nowait
 .. kernel-doc:: drivers/base/firmware_class.c
    :functions: request_firmware_nowait
 
+Special optimizations on reboot
+===============================
+
+Some devices have an optimization in place to enable the firmware to be
+retained during system reboot. When such optimizations are used the driver
+author must ensure the firmware is still available on resume from suspend,
+this can be done with firmware_request_cache() insted of requesting for the
+firmare to be loaded.
+
+firmware_request_cache()
+-----------------------
+.. kernel-doc:: drivers/base/firmware_class.c
+   :functions: firmware_request_cache
+
 request firmware API expected driver use
 ========================================
 
diff --git a/MAINTAINERS b/MAINTAINERS
index e56cedcd01a0f59619967f68d1d9f44042e85905..30bc6e417a035925e05546237f8219388b9fd4f7 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -5524,7 +5524,7 @@ M:	Luis R. Rodriguez <mcgrof@kernel.org>
 L:	linux-kernel@vger.kernel.org
 S:	Maintained
 F:	Documentation/firmware_class/
-F:	drivers/base/firmware*.c
+F:	drivers/base/firmware_loader/
 F:	include/linux/firmware.h
 
 FLASH ADAPTER DRIVER (IBM Flash Adapter 900GB Full Height PCI Flash Card)
diff --git a/drivers/base/Makefile b/drivers/base/Makefile
index 12a7f64d35a997059570a0148203bb2b6b7c15cb..b074f242a43594fc3d3a383a9dce5d126e8f3a78 100644
--- a/drivers/base/Makefile
+++ b/drivers/base/Makefile
@@ -13,7 +13,7 @@ obj-y			+= power/
 obj-$(CONFIG_HAS_DMA)	+= dma-mapping.o
 obj-$(CONFIG_HAVE_GENERIC_DMA_COHERENT) += dma-coherent.o
 obj-$(CONFIG_ISA_BUS_API)	+= isa.o
-obj-$(CONFIG_FW_LOADER)	+= firmware_class.o
+obj-y				+= firmware_loader/
 obj-$(CONFIG_NUMA)	+= node.o
 obj-$(CONFIG_MEMORY_HOTPLUG_SPARSE) += memory.o
 ifeq ($(CONFIG_SYSFS),y)
diff --git a/drivers/base/arch_topology.c b/drivers/base/arch_topology.c
index 52ec5174bcb1baba16af03db9d3e8b8eb8f0d6d5..e7cb0c6ade81ec7171a0a55fdb0cf0f5ab4cd199 100644
--- a/drivers/base/arch_topology.c
+++ b/drivers/base/arch_topology.c
@@ -169,11 +169,11 @@ bool __init topology_parse_cpu_capacity(struct device_node *cpu_node, int cpu)
 }
 
 #ifdef CONFIG_CPU_FREQ
-static cpumask_var_t cpus_to_visit __initdata;
-static void __init parsing_done_workfn(struct work_struct *work);
-static __initdata DECLARE_WORK(parsing_done_work, parsing_done_workfn);
+static cpumask_var_t cpus_to_visit;
+static void parsing_done_workfn(struct work_struct *work);
+static DECLARE_WORK(parsing_done_work, parsing_done_workfn);
 
-static int __init
+static int
 init_cpu_capacity_callback(struct notifier_block *nb,
 			   unsigned long val,
 			   void *data)
@@ -209,7 +209,7 @@ init_cpu_capacity_callback(struct notifier_block *nb,
 	return 0;
 }
 
-static struct notifier_block init_cpu_capacity_notifier __initdata = {
+static struct notifier_block init_cpu_capacity_notifier = {
 	.notifier_call = init_cpu_capacity_callback,
 };
 
@@ -242,7 +242,7 @@ static int __init register_cpufreq_notifier(void)
 }
 core_initcall(register_cpufreq_notifier);
 
-static void __init parsing_done_workfn(struct work_struct *work)
+static void parsing_done_workfn(struct work_struct *work)
 {
 	cpufreq_unregister_notifier(&init_cpu_capacity_notifier,
 					 CPUFREQ_POLICY_NOTIFIER);
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index d21a2d913107087a349ecaa7d62160615a255820..2da998baa75cb26714783bcce909332f8ae8e75e 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -382,8 +382,10 @@ int register_cpu(struct cpu *cpu, int num)
 	if (cpu->hotpluggable)
 		cpu->dev.groups = hotplugable_cpu_attr_groups;
 	error = device_register(&cpu->dev);
-	if (error)
+	if (error) {
+		put_device(&cpu->dev);
 		return error;
+	}
 
 	per_cpu(cpu_sys_devices, num) = &cpu->dev;
 	register_cpu_under_node(num, cpu_to_node(num));
diff --git a/drivers/base/dd.c b/drivers/base/dd.c
index de6fd092bf2fe2f2c2caf90841f9407ec07642a8..c9f54089429bde006fad1135017d49a0422fefa5 100644
--- a/drivers/base/dd.c
+++ b/drivers/base/dd.c
@@ -292,8 +292,7 @@ static ssize_t coredump_store(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	device_lock(dev);
-	if (dev->driver->coredump)
-		dev->driver->coredump(dev);
+	dev->driver->coredump(dev);
 	device_unlock(dev);
 
 	return count;
diff --git a/drivers/base/firmware_loader/Makefile b/drivers/base/firmware_loader/Makefile
new file mode 100644
index 0000000000000000000000000000000000000000..a97eeb0be1d8e49999eb0590c8208d738426a50a
--- /dev/null
+++ b/drivers/base/firmware_loader/Makefile
@@ -0,0 +1,7 @@
+# SPDX-License-Identifier: GPL-2.0
+# Makefile for the Linux firmware loader
+
+obj-y			:= fallback_table.o
+obj-$(CONFIG_FW_LOADER)	+= firmware_class.o
+firmware_class-objs := main.o
+firmware_class-$(CONFIG_FW_LOADER_USER_HELPER) += fallback.o
diff --git a/drivers/base/firmware_loader/fallback.c b/drivers/base/firmware_loader/fallback.c
new file mode 100644
index 0000000000000000000000000000000000000000..31b5015b59fecb456167e57ce697a4228bc77680
--- /dev/null
+++ b/drivers/base/firmware_loader/fallback.c
@@ -0,0 +1,675 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/types.h>
+#include <linux/kconfig.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/security.h>
+#include <linux/highmem.h>
+#include <linux/umh.h>
+#include <linux/sysctl.h>
+#include <linux/vmalloc.h>
+
+#include "fallback.h"
+#include "firmware.h"
+
+/*
+ * firmware fallback mechanism
+ */
+
+extern struct firmware_fallback_config fw_fallback_config;
+
+/* These getters are vetted to use int properly */
+static inline int __firmware_loading_timeout(void)
+{
+	return fw_fallback_config.loading_timeout;
+}
+
+/* These setters are vetted to use int properly */
+static void __fw_fallback_set_timeout(int timeout)
+{
+	fw_fallback_config.loading_timeout = timeout;
+}
+
+/*
+ * use small loading timeout for caching devices' firmware because all these
+ * firmware images have been loaded successfully at lease once, also system is
+ * ready for completing firmware loading now. The maximum size of firmware in
+ * current distributions is about 2M bytes, so 10 secs should be enough.
+ */
+void fw_fallback_set_cache_timeout(void)
+{
+	fw_fallback_config.old_timeout = __firmware_loading_timeout();
+	__fw_fallback_set_timeout(10);
+}
+
+/* Restores the timeout to the value last configured during normal operation */
+void fw_fallback_set_default_timeout(void)
+{
+	__fw_fallback_set_timeout(fw_fallback_config.old_timeout);
+}
+
+static long firmware_loading_timeout(void)
+{
+	return __firmware_loading_timeout() > 0 ?
+		__firmware_loading_timeout() * HZ : MAX_JIFFY_OFFSET;
+}
+
+static inline bool fw_sysfs_done(struct fw_priv *fw_priv)
+{
+	return __fw_state_check(fw_priv, FW_STATUS_DONE);
+}
+
+static inline bool fw_sysfs_loading(struct fw_priv *fw_priv)
+{
+	return __fw_state_check(fw_priv, FW_STATUS_LOADING);
+}
+
+static inline int fw_sysfs_wait_timeout(struct fw_priv *fw_priv,  long timeout)
+{
+	return __fw_state_wait_common(fw_priv, timeout);
+}
+
+struct fw_sysfs {
+	bool nowait;
+	struct device dev;
+	struct fw_priv *fw_priv;
+	struct firmware *fw;
+};
+
+static struct fw_sysfs *to_fw_sysfs(struct device *dev)
+{
+	return container_of(dev, struct fw_sysfs, dev);
+}
+
+static void __fw_load_abort(struct fw_priv *fw_priv)
+{
+	/*
+	 * There is a small window in which user can write to 'loading'
+	 * between loading done and disappearance of 'loading'
+	 */
+	if (fw_sysfs_done(fw_priv))
+		return;
+
+	list_del_init(&fw_priv->pending_list);
+	fw_state_aborted(fw_priv);
+}
+
+static void fw_load_abort(struct fw_sysfs *fw_sysfs)
+{
+	struct fw_priv *fw_priv = fw_sysfs->fw_priv;
+
+	__fw_load_abort(fw_priv);
+}
+
+static LIST_HEAD(pending_fw_head);
+
+void kill_pending_fw_fallback_reqs(bool only_kill_custom)
+{
+	struct fw_priv *fw_priv;
+	struct fw_priv *next;
+
+	mutex_lock(&fw_lock);
+	list_for_each_entry_safe(fw_priv, next, &pending_fw_head,
+				 pending_list) {
+		if (!fw_priv->need_uevent || !only_kill_custom)
+			 __fw_load_abort(fw_priv);
+	}
+	mutex_unlock(&fw_lock);
+}
+
+static ssize_t timeout_show(struct class *class, struct class_attribute *attr,
+			    char *buf)
+{
+	return sprintf(buf, "%d\n", __firmware_loading_timeout());
+}
+
+/**
+ * firmware_timeout_store - set number of seconds to wait for firmware
+ * @class: device class pointer
+ * @attr: device attribute pointer
+ * @buf: buffer to scan for timeout value
+ * @count: number of bytes in @buf
+ *
+ *	Sets the number of seconds to wait for the firmware.  Once
+ *	this expires an error will be returned to the driver and no
+ *	firmware will be provided.
+ *
+ *	Note: zero means 'wait forever'.
+ **/
+static ssize_t timeout_store(struct class *class, struct class_attribute *attr,
+			     const char *buf, size_t count)
+{
+	int tmp_loading_timeout = simple_strtol(buf, NULL, 10);
+
+	if (tmp_loading_timeout < 0)
+		tmp_loading_timeout = 0;
+
+	__fw_fallback_set_timeout(tmp_loading_timeout);
+
+	return count;
+}
+static CLASS_ATTR_RW(timeout);
+
+static struct attribute *firmware_class_attrs[] = {
+	&class_attr_timeout.attr,
+	NULL,
+};
+ATTRIBUTE_GROUPS(firmware_class);
+
+static void fw_dev_release(struct device *dev)
+{
+	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
+
+	kfree(fw_sysfs);
+}
+
+static int do_firmware_uevent(struct fw_sysfs *fw_sysfs, struct kobj_uevent_env *env)
+{
+	if (add_uevent_var(env, "FIRMWARE=%s", fw_sysfs->fw_priv->fw_name))
+		return -ENOMEM;
+	if (add_uevent_var(env, "TIMEOUT=%i", __firmware_loading_timeout()))
+		return -ENOMEM;
+	if (add_uevent_var(env, "ASYNC=%d", fw_sysfs->nowait))
+		return -ENOMEM;
+
+	return 0;
+}
+
+static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
+	int err = 0;
+
+	mutex_lock(&fw_lock);
+	if (fw_sysfs->fw_priv)
+		err = do_firmware_uevent(fw_sysfs, env);
+	mutex_unlock(&fw_lock);
+	return err;
+}
+
+static struct class firmware_class = {
+	.name		= "firmware",
+	.class_groups	= firmware_class_groups,
+	.dev_uevent	= firmware_uevent,
+	.dev_release	= fw_dev_release,
+};
+
+int register_sysfs_loader(void)
+{
+	return class_register(&firmware_class);
+}
+
+void unregister_sysfs_loader(void)
+{
+	class_unregister(&firmware_class);
+}
+
+static ssize_t firmware_loading_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
+	int loading = 0;
+
+	mutex_lock(&fw_lock);
+	if (fw_sysfs->fw_priv)
+		loading = fw_sysfs_loading(fw_sysfs->fw_priv);
+	mutex_unlock(&fw_lock);
+
+	return sprintf(buf, "%d\n", loading);
+}
+
+/* Some architectures don't have PAGE_KERNEL_RO */
+#ifndef PAGE_KERNEL_RO
+#define PAGE_KERNEL_RO PAGE_KERNEL
+#endif
+
+/* one pages buffer should be mapped/unmapped only once */
+static int map_fw_priv_pages(struct fw_priv *fw_priv)
+{
+	if (!fw_priv->is_paged_buf)
+		return 0;
+
+	vunmap(fw_priv->data);
+	fw_priv->data = vmap(fw_priv->pages, fw_priv->nr_pages, 0,
+			     PAGE_KERNEL_RO);
+	if (!fw_priv->data)
+		return -ENOMEM;
+	return 0;
+}
+
+/**
+ * firmware_loading_store - set value in the 'loading' control file
+ * @dev: device pointer
+ * @attr: device attribute pointer
+ * @buf: buffer to scan for loading control value
+ * @count: number of bytes in @buf
+ *
+ *	The relevant values are:
+ *
+ *	 1: Start a load, discarding any previous partial load.
+ *	 0: Conclude the load and hand the data to the driver code.
+ *	-1: Conclude the load with an error and discard any written data.
+ **/
+static ssize_t firmware_loading_store(struct device *dev,
+				      struct device_attribute *attr,
+				      const char *buf, size_t count)
+{
+	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
+	struct fw_priv *fw_priv;
+	ssize_t written = count;
+	int loading = simple_strtol(buf, NULL, 10);
+	int i;
+
+	mutex_lock(&fw_lock);
+	fw_priv = fw_sysfs->fw_priv;
+	if (fw_state_is_aborted(fw_priv))
+		goto out;
+
+	switch (loading) {
+	case 1:
+		/* discarding any previous partial load */
+		if (!fw_sysfs_done(fw_priv)) {
+			for (i = 0; i < fw_priv->nr_pages; i++)
+				__free_page(fw_priv->pages[i]);
+			vfree(fw_priv->pages);
+			fw_priv->pages = NULL;
+			fw_priv->page_array_size = 0;
+			fw_priv->nr_pages = 0;
+			fw_state_start(fw_priv);
+		}
+		break;
+	case 0:
+		if (fw_sysfs_loading(fw_priv)) {
+			int rc;
+
+			/*
+			 * Several loading requests may be pending on
+			 * one same firmware buf, so let all requests
+			 * see the mapped 'buf->data' once the loading
+			 * is completed.
+			 * */
+			rc = map_fw_priv_pages(fw_priv);
+			if (rc)
+				dev_err(dev, "%s: map pages failed\n",
+					__func__);
+			else
+				rc = security_kernel_post_read_file(NULL,
+						fw_priv->data, fw_priv->size,
+						READING_FIRMWARE);
+
+			/*
+			 * Same logic as fw_load_abort, only the DONE bit
+			 * is ignored and we set ABORT only on failure.
+			 */
+			list_del_init(&fw_priv->pending_list);
+			if (rc) {
+				fw_state_aborted(fw_priv);
+				written = rc;
+			} else {
+				fw_state_done(fw_priv);
+			}
+			break;
+		}
+		/* fallthrough */
+	default:
+		dev_err(dev, "%s: unexpected value (%d)\n", __func__, loading);
+		/* fallthrough */
+	case -1:
+		fw_load_abort(fw_sysfs);
+		break;
+	}
+out:
+	mutex_unlock(&fw_lock);
+	return written;
+}
+
+static DEVICE_ATTR(loading, 0644, firmware_loading_show, firmware_loading_store);
+
+static void firmware_rw_data(struct fw_priv *fw_priv, char *buffer,
+			   loff_t offset, size_t count, bool read)
+{
+	if (read)
+		memcpy(buffer, fw_priv->data + offset, count);
+	else
+		memcpy(fw_priv->data + offset, buffer, count);
+}
+
+static void firmware_rw(struct fw_priv *fw_priv, char *buffer,
+			loff_t offset, size_t count, bool read)
+{
+	while (count) {
+		void *page_data;
+		int page_nr = offset >> PAGE_SHIFT;
+		int page_ofs = offset & (PAGE_SIZE-1);
+		int page_cnt = min_t(size_t, PAGE_SIZE - page_ofs, count);
+
+		page_data = kmap(fw_priv->pages[page_nr]);
+
+		if (read)
+			memcpy(buffer, page_data + page_ofs, page_cnt);
+		else
+			memcpy(page_data + page_ofs, buffer, page_cnt);
+
+		kunmap(fw_priv->pages[page_nr]);
+		buffer += page_cnt;
+		offset += page_cnt;
+		count -= page_cnt;
+	}
+}
+
+static ssize_t firmware_data_read(struct file *filp, struct kobject *kobj,
+				  struct bin_attribute *bin_attr,
+				  char *buffer, loff_t offset, size_t count)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
+	struct fw_priv *fw_priv;
+	ssize_t ret_count;
+
+	mutex_lock(&fw_lock);
+	fw_priv = fw_sysfs->fw_priv;
+	if (!fw_priv || fw_sysfs_done(fw_priv)) {
+		ret_count = -ENODEV;
+		goto out;
+	}
+	if (offset > fw_priv->size) {
+		ret_count = 0;
+		goto out;
+	}
+	if (count > fw_priv->size - offset)
+		count = fw_priv->size - offset;
+
+	ret_count = count;
+
+	if (fw_priv->data)
+		firmware_rw_data(fw_priv, buffer, offset, count, true);
+	else
+		firmware_rw(fw_priv, buffer, offset, count, true);
+
+out:
+	mutex_unlock(&fw_lock);
+	return ret_count;
+}
+
+static int fw_realloc_pages(struct fw_sysfs *fw_sysfs, int min_size)
+{
+	struct fw_priv *fw_priv= fw_sysfs->fw_priv;
+	int pages_needed = PAGE_ALIGN(min_size) >> PAGE_SHIFT;
+
+	/* If the array of pages is too small, grow it... */
+	if (fw_priv->page_array_size < pages_needed) {
+		int new_array_size = max(pages_needed,
+					 fw_priv->page_array_size * 2);
+		struct page **new_pages;
+
+		new_pages = vmalloc(new_array_size * sizeof(void *));
+		if (!new_pages) {
+			fw_load_abort(fw_sysfs);
+			return -ENOMEM;
+		}
+		memcpy(new_pages, fw_priv->pages,
+		       fw_priv->page_array_size * sizeof(void *));
+		memset(&new_pages[fw_priv->page_array_size], 0, sizeof(void *) *
+		       (new_array_size - fw_priv->page_array_size));
+		vfree(fw_priv->pages);
+		fw_priv->pages = new_pages;
+		fw_priv->page_array_size = new_array_size;
+	}
+
+	while (fw_priv->nr_pages < pages_needed) {
+		fw_priv->pages[fw_priv->nr_pages] =
+			alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
+
+		if (!fw_priv->pages[fw_priv->nr_pages]) {
+			fw_load_abort(fw_sysfs);
+			return -ENOMEM;
+		}
+		fw_priv->nr_pages++;
+	}
+	return 0;
+}
+
+/**
+ * firmware_data_write - write method for firmware
+ * @filp: open sysfs file
+ * @kobj: kobject for the device
+ * @bin_attr: bin_attr structure
+ * @buffer: buffer being written
+ * @offset: buffer offset for write in total data store area
+ * @count: buffer size
+ *
+ *	Data written to the 'data' attribute will be later handed to
+ *	the driver as a firmware image.
+ **/
+static ssize_t firmware_data_write(struct file *filp, struct kobject *kobj,
+				   struct bin_attribute *bin_attr,
+				   char *buffer, loff_t offset, size_t count)
+{
+	struct device *dev = kobj_to_dev(kobj);
+	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
+	struct fw_priv *fw_priv;
+	ssize_t retval;
+
+	if (!capable(CAP_SYS_RAWIO))
+		return -EPERM;
+
+	mutex_lock(&fw_lock);
+	fw_priv = fw_sysfs->fw_priv;
+	if (!fw_priv || fw_sysfs_done(fw_priv)) {
+		retval = -ENODEV;
+		goto out;
+	}
+
+	if (fw_priv->data) {
+		if (offset + count > fw_priv->allocated_size) {
+			retval = -ENOMEM;
+			goto out;
+		}
+		firmware_rw_data(fw_priv, buffer, offset, count, false);
+		retval = count;
+	} else {
+		retval = fw_realloc_pages(fw_sysfs, offset + count);
+		if (retval)
+			goto out;
+
+		retval = count;
+		firmware_rw(fw_priv, buffer, offset, count, false);
+	}
+
+	fw_priv->size = max_t(size_t, offset + count, fw_priv->size);
+out:
+	mutex_unlock(&fw_lock);
+	return retval;
+}
+
+static struct bin_attribute firmware_attr_data = {
+	.attr = { .name = "data", .mode = 0644 },
+	.size = 0,
+	.read = firmware_data_read,
+	.write = firmware_data_write,
+};
+
+static struct attribute *fw_dev_attrs[] = {
+	&dev_attr_loading.attr,
+	NULL
+};
+
+static struct bin_attribute *fw_dev_bin_attrs[] = {
+	&firmware_attr_data,
+	NULL
+};
+
+static const struct attribute_group fw_dev_attr_group = {
+	.attrs = fw_dev_attrs,
+	.bin_attrs = fw_dev_bin_attrs,
+};
+
+static const struct attribute_group *fw_dev_attr_groups[] = {
+	&fw_dev_attr_group,
+	NULL
+};
+
+static struct fw_sysfs *
+fw_create_instance(struct firmware *firmware, const char *fw_name,
+		   struct device *device, unsigned int opt_flags)
+{
+	struct fw_sysfs *fw_sysfs;
+	struct device *f_dev;
+
+	fw_sysfs = kzalloc(sizeof(*fw_sysfs), GFP_KERNEL);
+	if (!fw_sysfs) {
+		fw_sysfs = ERR_PTR(-ENOMEM);
+		goto exit;
+	}
+
+	fw_sysfs->nowait = !!(opt_flags & FW_OPT_NOWAIT);
+	fw_sysfs->fw = firmware;
+	f_dev = &fw_sysfs->dev;
+
+	device_initialize(f_dev);
+	dev_set_name(f_dev, "%s", fw_name);
+	f_dev->parent = device;
+	f_dev->class = &firmware_class;
+	f_dev->groups = fw_dev_attr_groups;
+exit:
+	return fw_sysfs;
+}
+
+/**
+ * fw_load_sysfs_fallback - load a firmware via the syfs fallback mechanism
+ * @fw_sysfs: firmware syfs information for the firmware to load
+ * @opt_flags: flags of options, FW_OPT_*
+ * @timeout: timeout to wait for the load
+ *
+ * In charge of constructing a sysfs fallback interface for firmware loading.
+ **/
+static int fw_load_sysfs_fallback(struct fw_sysfs *fw_sysfs,
+				  unsigned int opt_flags, long timeout)
+{
+	int retval = 0;
+	struct device *f_dev = &fw_sysfs->dev;
+	struct fw_priv *fw_priv = fw_sysfs->fw_priv;
+
+	/* fall back on userspace loading */
+	if (!fw_priv->data)
+		fw_priv->is_paged_buf = true;
+
+	dev_set_uevent_suppress(f_dev, true);
+
+	retval = device_add(f_dev);
+	if (retval) {
+		dev_err(f_dev, "%s: device_register failed\n", __func__);
+		goto err_put_dev;
+	}
+
+	mutex_lock(&fw_lock);
+	list_add(&fw_priv->pending_list, &pending_fw_head);
+	mutex_unlock(&fw_lock);
+
+	if (opt_flags & FW_OPT_UEVENT) {
+		fw_priv->need_uevent = true;
+		dev_set_uevent_suppress(f_dev, false);
+		dev_dbg(f_dev, "firmware: requesting %s\n", fw_priv->fw_name);
+		kobject_uevent(&fw_sysfs->dev.kobj, KOBJ_ADD);
+	} else {
+		timeout = MAX_JIFFY_OFFSET;
+	}
+
+	retval = fw_sysfs_wait_timeout(fw_priv, timeout);
+	if (retval < 0) {
+		mutex_lock(&fw_lock);
+		fw_load_abort(fw_sysfs);
+		mutex_unlock(&fw_lock);
+	}
+
+	if (fw_state_is_aborted(fw_priv)) {
+		if (retval == -ERESTARTSYS)
+			retval = -EINTR;
+		else
+			retval = -EAGAIN;
+	} else if (fw_priv->is_paged_buf && !fw_priv->data)
+		retval = -ENOMEM;
+
+	device_del(f_dev);
+err_put_dev:
+	put_device(f_dev);
+	return retval;
+}
+
+static int fw_load_from_user_helper(struct firmware *firmware,
+				    const char *name, struct device *device,
+				    unsigned int opt_flags)
+{
+	struct fw_sysfs *fw_sysfs;
+	long timeout;
+	int ret;
+
+	timeout = firmware_loading_timeout();
+	if (opt_flags & FW_OPT_NOWAIT) {
+		timeout = usermodehelper_read_lock_wait(timeout);
+		if (!timeout) {
+			dev_dbg(device, "firmware: %s loading timed out\n",
+				name);
+			return -EBUSY;
+		}
+	} else {
+		ret = usermodehelper_read_trylock();
+		if (WARN_ON(ret)) {
+			dev_err(device, "firmware: %s will not be loaded\n",
+				name);
+			return ret;
+		}
+	}
+
+	fw_sysfs = fw_create_instance(firmware, name, device, opt_flags);
+	if (IS_ERR(fw_sysfs)) {
+		ret = PTR_ERR(fw_sysfs);
+		goto out_unlock;
+	}
+
+	fw_sysfs->fw_priv = firmware->priv;
+	ret = fw_load_sysfs_fallback(fw_sysfs, opt_flags, timeout);
+
+	if (!ret)
+		ret = assign_fw(firmware, device, opt_flags);
+
+out_unlock:
+	usermodehelper_read_unlock();
+
+	return ret;
+}
+
+static bool fw_force_sysfs_fallback(unsigned int opt_flags)
+{
+	if (fw_fallback_config.force_sysfs_fallback)
+		return true;
+	if (!(opt_flags & FW_OPT_USERHELPER))
+		return false;
+	return true;
+}
+
+static bool fw_run_sysfs_fallback(unsigned int opt_flags)
+{
+	if (fw_fallback_config.ignore_sysfs_fallback) {
+		pr_info_once("Ignoring firmware sysfs fallback due to sysctl knob\n");
+		return false;
+	}
+
+	if ((opt_flags & FW_OPT_NOFALLBACK))
+		return false;
+
+	return fw_force_sysfs_fallback(opt_flags);
+}
+
+int fw_sysfs_fallback(struct firmware *fw, const char *name,
+		      struct device *device,
+		      unsigned int opt_flags,
+		      int ret)
+{
+	if (!fw_run_sysfs_fallback(opt_flags))
+		return ret;
+
+	dev_warn(device, "Falling back to user helper\n");
+	return fw_load_from_user_helper(fw, name, device, opt_flags);
+}
diff --git a/drivers/base/firmware_loader/fallback.h b/drivers/base/firmware_loader/fallback.h
new file mode 100644
index 0000000000000000000000000000000000000000..dfebc644ed35a1a410db821455ef54dcb8e025b6
--- /dev/null
+++ b/drivers/base/firmware_loader/fallback.h
@@ -0,0 +1,67 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __FIRMWARE_FALLBACK_H
+#define __FIRMWARE_FALLBACK_H
+
+#include <linux/firmware.h>
+#include <linux/device.h>
+
+/**
+ * struct firmware_fallback_config - firmware fallback configuratioon settings
+ *
+ * Helps describe and fine tune the fallback mechanism.
+ *
+ * @force_sysfs_fallback: force the sysfs fallback mechanism to be used
+ * 	as if one had enabled CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y.
+ * 	Useful to help debug a CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y
+ * 	functionality on a kernel where that config entry has been disabled.
+ * @ignore_sysfs_fallback: force to disable the sysfs fallback mechanism.
+ * 	This emulates the behaviour as if we had set the kernel
+ * 	config CONFIG_FW_LOADER_USER_HELPER=n.
+ * @old_timeout: for internal use
+ * @loading_timeout: the timeout to wait for the fallback mechanism before
+ * 	giving up, in seconds.
+ */
+struct firmware_fallback_config {
+	unsigned int force_sysfs_fallback;
+	unsigned int ignore_sysfs_fallback;
+	int old_timeout;
+	int loading_timeout;
+};
+
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+int fw_sysfs_fallback(struct firmware *fw, const char *name,
+		      struct device *device,
+		      unsigned int opt_flags,
+		      int ret);
+void kill_pending_fw_fallback_reqs(bool only_kill_custom);
+
+void fw_fallback_set_cache_timeout(void);
+void fw_fallback_set_default_timeout(void);
+
+int register_sysfs_loader(void);
+void unregister_sysfs_loader(void);
+#else /* CONFIG_FW_LOADER_USER_HELPER */
+static inline int fw_sysfs_fallback(struct firmware *fw, const char *name,
+				    struct device *device,
+				    unsigned int opt_flags,
+				    int ret)
+{
+	/* Keep carrying over the same error */
+	return ret;
+}
+
+static inline void kill_pending_fw_fallback_reqs(bool only_kill_custom) { }
+static inline void fw_fallback_set_cache_timeout(void) { }
+static inline void fw_fallback_set_default_timeout(void) { }
+
+static inline int register_sysfs_loader(void)
+{
+	return 0;
+}
+
+static inline void unregister_sysfs_loader(void)
+{
+}
+#endif /* CONFIG_FW_LOADER_USER_HELPER */
+
+#endif /* __FIRMWARE_FALLBACK_H */
diff --git a/drivers/base/firmware_loader/fallback_table.c b/drivers/base/firmware_loader/fallback_table.c
new file mode 100644
index 0000000000000000000000000000000000000000..7428659d8df944fa4d8a3b35df276ed87c37fc1c
--- /dev/null
+++ b/drivers/base/firmware_loader/fallback_table.c
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/types.h>
+#include <linux/kconfig.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/security.h>
+#include <linux/highmem.h>
+#include <linux/umh.h>
+#include <linux/sysctl.h>
+
+#include "fallback.h"
+#include "firmware.h"
+
+/*
+ * firmware fallback configuration table
+ */
+
+/* Module or buit-in */
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+
+static unsigned int zero;
+static unsigned int one = 1;
+
+struct firmware_fallback_config fw_fallback_config = {
+	.force_sysfs_fallback = IS_ENABLED(CONFIG_FW_LOADER_USER_HELPER_FALLBACK),
+	.loading_timeout = 60,
+	.old_timeout = 60,
+};
+EXPORT_SYMBOL_GPL(fw_fallback_config);
+
+struct ctl_table firmware_config_table[] = {
+	{
+		.procname	= "force_sysfs_fallback",
+		.data		= &fw_fallback_config.force_sysfs_fallback,
+		.maxlen         = sizeof(unsigned int),
+		.mode           = 0644,
+		.proc_handler   = proc_douintvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &one,
+	},
+	{
+		.procname	= "ignore_sysfs_fallback",
+		.data		= &fw_fallback_config.ignore_sysfs_fallback,
+		.maxlen         = sizeof(unsigned int),
+		.mode           = 0644,
+		.proc_handler   = proc_douintvec_minmax,
+		.extra1		= &zero,
+		.extra2		= &one,
+	},
+	{ }
+};
+EXPORT_SYMBOL_GPL(firmware_config_table);
+
+#endif
diff --git a/drivers/base/firmware_loader/firmware.h b/drivers/base/firmware_loader/firmware.h
new file mode 100644
index 0000000000000000000000000000000000000000..64acbb1a392c7286c7491270bfef4c15d9fad760
--- /dev/null
+++ b/drivers/base/firmware_loader/firmware.h
@@ -0,0 +1,115 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __FIRMWARE_LOADER_H
+#define __FIRMWARE_LOADER_H
+
+#include <linux/firmware.h>
+#include <linux/types.h>
+#include <linux/kref.h>
+#include <linux/list.h>
+#include <linux/completion.h>
+
+#include <generated/utsrelease.h>
+
+/* firmware behavior options */
+#define FW_OPT_UEVENT			(1U << 0)
+#define FW_OPT_NOWAIT			(1U << 1)
+#define FW_OPT_USERHELPER		(1U << 2)
+#define FW_OPT_NO_WARN			(1U << 3)
+#define FW_OPT_NOCACHE			(1U << 4)
+#define FW_OPT_NOFALLBACK		(1U << 5)
+
+enum fw_status {
+	FW_STATUS_UNKNOWN,
+	FW_STATUS_LOADING,
+	FW_STATUS_DONE,
+	FW_STATUS_ABORTED,
+};
+
+/*
+ * Concurrent request_firmware() for the same firmware need to be
+ * serialized.  struct fw_state is simple state machine which hold the
+ * state of the firmware loading.
+ */
+struct fw_state {
+	struct completion completion;
+	enum fw_status status;
+};
+
+struct fw_priv {
+	struct kref ref;
+	struct list_head list;
+	struct firmware_cache *fwc;
+	struct fw_state fw_st;
+	void *data;
+	size_t size;
+	size_t allocated_size;
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	bool is_paged_buf;
+	bool need_uevent;
+	struct page **pages;
+	int nr_pages;
+	int page_array_size;
+	struct list_head pending_list;
+#endif
+	const char *fw_name;
+};
+
+extern struct mutex fw_lock;
+
+static inline bool __fw_state_check(struct fw_priv *fw_priv,
+				    enum fw_status status)
+{
+	struct fw_state *fw_st = &fw_priv->fw_st;
+
+	return fw_st->status == status;
+}
+
+static inline int __fw_state_wait_common(struct fw_priv *fw_priv, long timeout)
+{
+	struct fw_state *fw_st = &fw_priv->fw_st;
+	long ret;
+
+	ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
+	if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
+		return -ENOENT;
+	if (!ret)
+		return -ETIMEDOUT;
+
+	return ret < 0 ? ret : 0;
+}
+
+static inline void __fw_state_set(struct fw_priv *fw_priv,
+				  enum fw_status status)
+{
+	struct fw_state *fw_st = &fw_priv->fw_st;
+
+	WRITE_ONCE(fw_st->status, status);
+
+	if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
+		complete_all(&fw_st->completion);
+}
+
+static inline void fw_state_aborted(struct fw_priv *fw_priv)
+{
+	__fw_state_set(fw_priv, FW_STATUS_ABORTED);
+}
+
+static inline bool fw_state_is_aborted(struct fw_priv *fw_priv)
+{
+	return __fw_state_check(fw_priv, FW_STATUS_ABORTED);
+}
+
+static inline void fw_state_start(struct fw_priv *fw_priv)
+{
+	__fw_state_set(fw_priv, FW_STATUS_LOADING);
+}
+
+static inline void fw_state_done(struct fw_priv *fw_priv)
+{
+	__fw_state_set(fw_priv, FW_STATUS_DONE);
+}
+
+int assign_fw(struct firmware *fw, struct device *device,
+	      unsigned int opt_flags);
+
+#endif /* __FIRMWARE_LOADER_H */
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_loader/main.c
similarity index 60%
rename from drivers/base/firmware_class.c
rename to drivers/base/firmware_loader/main.c
index 7dd36ace615204c0ecf60ca43aa238b8392d5a3b..eb34089e42995a6859c3917bb88cce145d204257 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_loader/main.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0
 /*
- * firmware_class.c - Multi purpose firmware loading support
+ * main.c - Multi purpose firmware loading support
  *
  * Copyright (c) 2003 Manuel Estrada Sainz
  *
@@ -36,37 +36,14 @@
 
 #include <generated/utsrelease.h>
 
-#include "base.h"
+#include "../base.h"
+#include "firmware.h"
+#include "fallback.h"
 
 MODULE_AUTHOR("Manuel Estrada Sainz");
 MODULE_DESCRIPTION("Multi purpose firmware loading support");
 MODULE_LICENSE("GPL");
 
-enum fw_status {
-	FW_STATUS_UNKNOWN,
-	FW_STATUS_LOADING,
-	FW_STATUS_DONE,
-	FW_STATUS_ABORTED,
-};
-
-/*
- * Concurrent request_firmware() for the same firmware need to be
- * serialized.  struct fw_state is simple state machine which hold the
- * state of the firmware loading.
- */
-struct fw_state {
-	struct completion completion;
-	enum fw_status status;
-};
-
-/* firmware behavior options */
-#define FW_OPT_UEVENT	(1U << 0)
-#define FW_OPT_NOWAIT	(1U << 1)
-#define FW_OPT_USERHELPER	(1U << 2)
-#define FW_OPT_NO_WARN	(1U << 3)
-#define FW_OPT_NOCACHE	(1U << 4)
-#define FW_OPT_NOFALLBACK (1U << 5)
-
 struct firmware_cache {
 	/* firmware_buf instance will be added into the below list */
 	spinlock_t lock;
@@ -89,25 +66,6 @@ struct firmware_cache {
 #endif
 };
 
-struct fw_priv {
-	struct kref ref;
-	struct list_head list;
-	struct firmware_cache *fwc;
-	struct fw_state fw_st;
-	void *data;
-	size_t size;
-	size_t allocated_size;
-#ifdef CONFIG_FW_LOADER_USER_HELPER
-	bool is_paged_buf;
-	bool need_uevent;
-	struct page **pages;
-	int nr_pages;
-	int page_array_size;
-	struct list_head pending_list;
-#endif
-	const char *fw_name;
-};
-
 struct fw_cache_entry {
 	struct list_head list;
 	const char *name;
@@ -128,7 +86,7 @@ static inline struct fw_priv *to_fw_priv(struct kref *ref)
 
 /* fw_lock could be moved to 'struct fw_sysfs' but since it is just
  * guarding for corner cases a global lock should be OK */
-static DEFINE_MUTEX(fw_lock);
+DEFINE_MUTEX(fw_lock);
 
 static struct firmware_cache fw_cache;
 
@@ -191,13 +149,6 @@ static inline bool fw_is_builtin_firmware(const struct firmware *fw)
 }
 #endif
 
-static int loading_timeout = 60;	/* In seconds */
-
-static inline long firmware_loading_timeout(void)
-{
-	return loading_timeout > 0 ? loading_timeout * HZ : MAX_JIFFY_OFFSET;
-}
-
 static void fw_state_init(struct fw_priv *fw_priv)
 {
 	struct fw_state *fw_st = &fw_priv->fw_st;
@@ -206,83 +157,11 @@ static void fw_state_init(struct fw_priv *fw_priv)
 	fw_st->status = FW_STATUS_UNKNOWN;
 }
 
-static int __fw_state_wait_common(struct fw_priv *fw_priv, long timeout)
-{
-	struct fw_state *fw_st = &fw_priv->fw_st;
-	long ret;
-
-	ret = wait_for_completion_killable_timeout(&fw_st->completion, timeout);
-	if (ret != 0 && fw_st->status == FW_STATUS_ABORTED)
-		return -ENOENT;
-	if (!ret)
-		return -ETIMEDOUT;
-
-	return ret < 0 ? ret : 0;
-}
-
-static void __fw_state_set(struct fw_priv *fw_priv,
-			   enum fw_status status)
-{
-	struct fw_state *fw_st = &fw_priv->fw_st;
-
-	WRITE_ONCE(fw_st->status, status);
-
-	if (status == FW_STATUS_DONE || status == FW_STATUS_ABORTED)
-		complete_all(&fw_st->completion);
-}
-
-static inline void fw_state_start(struct fw_priv *fw_priv)
-{
-	__fw_state_set(fw_priv, FW_STATUS_LOADING);
-}
-
-static inline void fw_state_done(struct fw_priv *fw_priv)
-{
-	__fw_state_set(fw_priv, FW_STATUS_DONE);
-}
-
-static inline void fw_state_aborted(struct fw_priv *fw_priv)
-{
-	__fw_state_set(fw_priv, FW_STATUS_ABORTED);
-}
-
 static inline int fw_state_wait(struct fw_priv *fw_priv)
 {
 	return __fw_state_wait_common(fw_priv, MAX_SCHEDULE_TIMEOUT);
 }
 
-static bool __fw_state_check(struct fw_priv *fw_priv,
-			     enum fw_status status)
-{
-	struct fw_state *fw_st = &fw_priv->fw_st;
-
-	return fw_st->status == status;
-}
-
-static inline bool fw_state_is_aborted(struct fw_priv *fw_priv)
-{
-	return __fw_state_check(fw_priv, FW_STATUS_ABORTED);
-}
-
-#ifdef CONFIG_FW_LOADER_USER_HELPER
-
-static inline bool fw_sysfs_done(struct fw_priv *fw_priv)
-{
-	return __fw_state_check(fw_priv, FW_STATUS_DONE);
-}
-
-static inline bool fw_sysfs_loading(struct fw_priv *fw_priv)
-{
-	return __fw_state_check(fw_priv, FW_STATUS_LOADING);
-}
-
-static inline int fw_sysfs_wait_timeout(struct fw_priv *fw_priv,  long timeout)
-{
-	return __fw_state_wait_common(fw_priv, timeout);
-}
-
-#endif /* CONFIG_FW_LOADER_USER_HELPER */
-
 static int fw_cache_piggyback_on_request(const char *name);
 
 static struct fw_priv *__allocate_fw_priv(const char *fw_name,
@@ -517,14 +396,24 @@ static struct fw_name_devm *fw_find_devm_name(struct device *dev,
 	return fwn;
 }
 
-/* add firmware name into devres list */
-static int fw_add_devm_name(struct device *dev, const char *name)
+static bool fw_cache_is_setup(struct device *dev, const char *name)
 {
 	struct fw_name_devm *fwn;
 
 	fwn = fw_find_devm_name(dev, name);
 	if (fwn)
-		return 1;
+		return true;
+
+	return false;
+}
+
+/* add firmware name into devres list */
+static int fw_add_devm_name(struct device *dev, const char *name)
+{
+	struct fw_name_devm *fwn;
+
+	if (fw_cache_is_setup(dev, name))
+		return 0;
 
 	fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm),
 			   GFP_KERNEL);
@@ -542,16 +431,22 @@ static int fw_add_devm_name(struct device *dev, const char *name)
 	return 0;
 }
 #else
+static bool fw_cache_is_setup(struct device *dev, const char *name)
+{
+	return false;
+}
+
 static int fw_add_devm_name(struct device *dev, const char *name)
 {
 	return 0;
 }
 #endif
 
-static int assign_fw(struct firmware *fw, struct device *device,
-		     unsigned int opt_flags)
+int assign_fw(struct firmware *fw, struct device *device,
+	      unsigned int opt_flags)
 {
 	struct fw_priv *fw_priv = fw->priv;
+	int ret;
 
 	mutex_lock(&fw_lock);
 	if (!fw_priv->size || fw_state_is_aborted(fw_priv)) {
@@ -568,8 +463,13 @@ static int assign_fw(struct firmware *fw, struct device *device,
 	 */
 	/* don't cache firmware handled without uevent */
 	if (device && (opt_flags & FW_OPT_UEVENT) &&
-	    !(opt_flags & FW_OPT_NOCACHE))
-		fw_add_devm_name(device, fw_priv->fw_name);
+	    !(opt_flags & FW_OPT_NOCACHE)) {
+		ret = fw_add_devm_name(device, fw_priv->fw_name);
+		if (ret) {
+			mutex_unlock(&fw_lock);
+			return ret;
+		}
+	}
 
 	/*
 	 * After caching firmware image is started, let it piggyback
@@ -587,626 +487,6 @@ static int assign_fw(struct firmware *fw, struct device *device,
 	return 0;
 }
 
-/*
- * user-mode helper code
- */
-#ifdef CONFIG_FW_LOADER_USER_HELPER
-struct fw_sysfs {
-	bool nowait;
-	struct device dev;
-	struct fw_priv *fw_priv;
-	struct firmware *fw;
-};
-
-static struct fw_sysfs *to_fw_sysfs(struct device *dev)
-{
-	return container_of(dev, struct fw_sysfs, dev);
-}
-
-static void __fw_load_abort(struct fw_priv *fw_priv)
-{
-	/*
-	 * There is a small window in which user can write to 'loading'
-	 * between loading done and disappearance of 'loading'
-	 */
-	if (fw_sysfs_done(fw_priv))
-		return;
-
-	list_del_init(&fw_priv->pending_list);
-	fw_state_aborted(fw_priv);
-}
-
-static void fw_load_abort(struct fw_sysfs *fw_sysfs)
-{
-	struct fw_priv *fw_priv = fw_sysfs->fw_priv;
-
-	__fw_load_abort(fw_priv);
-}
-
-static LIST_HEAD(pending_fw_head);
-
-static void kill_pending_fw_fallback_reqs(bool only_kill_custom)
-{
-	struct fw_priv *fw_priv;
-	struct fw_priv *next;
-
-	mutex_lock(&fw_lock);
-	list_for_each_entry_safe(fw_priv, next, &pending_fw_head,
-				 pending_list) {
-		if (!fw_priv->need_uevent || !only_kill_custom)
-			 __fw_load_abort(fw_priv);
-	}
-	mutex_unlock(&fw_lock);
-}
-
-static ssize_t timeout_show(struct class *class, struct class_attribute *attr,
-			    char *buf)
-{
-	return sprintf(buf, "%d\n", loading_timeout);
-}
-
-/**
- * firmware_timeout_store - set number of seconds to wait for firmware
- * @class: device class pointer
- * @attr: device attribute pointer
- * @buf: buffer to scan for timeout value
- * @count: number of bytes in @buf
- *
- *	Sets the number of seconds to wait for the firmware.  Once
- *	this expires an error will be returned to the driver and no
- *	firmware will be provided.
- *
- *	Note: zero means 'wait forever'.
- **/
-static ssize_t timeout_store(struct class *class, struct class_attribute *attr,
-			     const char *buf, size_t count)
-{
-	loading_timeout = simple_strtol(buf, NULL, 10);
-	if (loading_timeout < 0)
-		loading_timeout = 0;
-
-	return count;
-}
-static CLASS_ATTR_RW(timeout);
-
-static struct attribute *firmware_class_attrs[] = {
-	&class_attr_timeout.attr,
-	NULL,
-};
-ATTRIBUTE_GROUPS(firmware_class);
-
-static void fw_dev_release(struct device *dev)
-{
-	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
-
-	kfree(fw_sysfs);
-}
-
-static int do_firmware_uevent(struct fw_sysfs *fw_sysfs, struct kobj_uevent_env *env)
-{
-	if (add_uevent_var(env, "FIRMWARE=%s", fw_sysfs->fw_priv->fw_name))
-		return -ENOMEM;
-	if (add_uevent_var(env, "TIMEOUT=%i", loading_timeout))
-		return -ENOMEM;
-	if (add_uevent_var(env, "ASYNC=%d", fw_sysfs->nowait))
-		return -ENOMEM;
-
-	return 0;
-}
-
-static int firmware_uevent(struct device *dev, struct kobj_uevent_env *env)
-{
-	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
-	int err = 0;
-
-	mutex_lock(&fw_lock);
-	if (fw_sysfs->fw_priv)
-		err = do_firmware_uevent(fw_sysfs, env);
-	mutex_unlock(&fw_lock);
-	return err;
-}
-
-static struct class firmware_class = {
-	.name		= "firmware",
-	.class_groups	= firmware_class_groups,
-	.dev_uevent	= firmware_uevent,
-	.dev_release	= fw_dev_release,
-};
-
-static inline int register_sysfs_loader(void)
-{
-	return class_register(&firmware_class);
-}
-
-static inline void unregister_sysfs_loader(void)
-{
-	class_unregister(&firmware_class);
-}
-
-static ssize_t firmware_loading_show(struct device *dev,
-				     struct device_attribute *attr, char *buf)
-{
-	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
-	int loading = 0;
-
-	mutex_lock(&fw_lock);
-	if (fw_sysfs->fw_priv)
-		loading = fw_sysfs_loading(fw_sysfs->fw_priv);
-	mutex_unlock(&fw_lock);
-
-	return sprintf(buf, "%d\n", loading);
-}
-
-/* Some architectures don't have PAGE_KERNEL_RO */
-#ifndef PAGE_KERNEL_RO
-#define PAGE_KERNEL_RO PAGE_KERNEL
-#endif
-
-/* one pages buffer should be mapped/unmapped only once */
-static int map_fw_priv_pages(struct fw_priv *fw_priv)
-{
-	if (!fw_priv->is_paged_buf)
-		return 0;
-
-	vunmap(fw_priv->data);
-	fw_priv->data = vmap(fw_priv->pages, fw_priv->nr_pages, 0,
-			     PAGE_KERNEL_RO);
-	if (!fw_priv->data)
-		return -ENOMEM;
-	return 0;
-}
-
-/**
- * firmware_loading_store - set value in the 'loading' control file
- * @dev: device pointer
- * @attr: device attribute pointer
- * @buf: buffer to scan for loading control value
- * @count: number of bytes in @buf
- *
- *	The relevant values are:
- *
- *	 1: Start a load, discarding any previous partial load.
- *	 0: Conclude the load and hand the data to the driver code.
- *	-1: Conclude the load with an error and discard any written data.
- **/
-static ssize_t firmware_loading_store(struct device *dev,
-				      struct device_attribute *attr,
-				      const char *buf, size_t count)
-{
-	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
-	struct fw_priv *fw_priv;
-	ssize_t written = count;
-	int loading = simple_strtol(buf, NULL, 10);
-	int i;
-
-	mutex_lock(&fw_lock);
-	fw_priv = fw_sysfs->fw_priv;
-	if (fw_state_is_aborted(fw_priv))
-		goto out;
-
-	switch (loading) {
-	case 1:
-		/* discarding any previous partial load */
-		if (!fw_sysfs_done(fw_priv)) {
-			for (i = 0; i < fw_priv->nr_pages; i++)
-				__free_page(fw_priv->pages[i]);
-			vfree(fw_priv->pages);
-			fw_priv->pages = NULL;
-			fw_priv->page_array_size = 0;
-			fw_priv->nr_pages = 0;
-			fw_state_start(fw_priv);
-		}
-		break;
-	case 0:
-		if (fw_sysfs_loading(fw_priv)) {
-			int rc;
-
-			/*
-			 * Several loading requests may be pending on
-			 * one same firmware buf, so let all requests
-			 * see the mapped 'buf->data' once the loading
-			 * is completed.
-			 * */
-			rc = map_fw_priv_pages(fw_priv);
-			if (rc)
-				dev_err(dev, "%s: map pages failed\n",
-					__func__);
-			else
-				rc = security_kernel_post_read_file(NULL,
-						fw_priv->data, fw_priv->size,
-						READING_FIRMWARE);
-
-			/*
-			 * Same logic as fw_load_abort, only the DONE bit
-			 * is ignored and we set ABORT only on failure.
-			 */
-			list_del_init(&fw_priv->pending_list);
-			if (rc) {
-				fw_state_aborted(fw_priv);
-				written = rc;
-			} else {
-				fw_state_done(fw_priv);
-			}
-			break;
-		}
-		/* fallthrough */
-	default:
-		dev_err(dev, "%s: unexpected value (%d)\n", __func__, loading);
-		/* fallthrough */
-	case -1:
-		fw_load_abort(fw_sysfs);
-		break;
-	}
-out:
-	mutex_unlock(&fw_lock);
-	return written;
-}
-
-static DEVICE_ATTR(loading, 0644, firmware_loading_show, firmware_loading_store);
-
-static void firmware_rw_data(struct fw_priv *fw_priv, char *buffer,
-			   loff_t offset, size_t count, bool read)
-{
-	if (read)
-		memcpy(buffer, fw_priv->data + offset, count);
-	else
-		memcpy(fw_priv->data + offset, buffer, count);
-}
-
-static void firmware_rw(struct fw_priv *fw_priv, char *buffer,
-			loff_t offset, size_t count, bool read)
-{
-	while (count) {
-		void *page_data;
-		int page_nr = offset >> PAGE_SHIFT;
-		int page_ofs = offset & (PAGE_SIZE-1);
-		int page_cnt = min_t(size_t, PAGE_SIZE - page_ofs, count);
-
-		page_data = kmap(fw_priv->pages[page_nr]);
-
-		if (read)
-			memcpy(buffer, page_data + page_ofs, page_cnt);
-		else
-			memcpy(page_data + page_ofs, buffer, page_cnt);
-
-		kunmap(fw_priv->pages[page_nr]);
-		buffer += page_cnt;
-		offset += page_cnt;
-		count -= page_cnt;
-	}
-}
-
-static ssize_t firmware_data_read(struct file *filp, struct kobject *kobj,
-				  struct bin_attribute *bin_attr,
-				  char *buffer, loff_t offset, size_t count)
-{
-	struct device *dev = kobj_to_dev(kobj);
-	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
-	struct fw_priv *fw_priv;
-	ssize_t ret_count;
-
-	mutex_lock(&fw_lock);
-	fw_priv = fw_sysfs->fw_priv;
-	if (!fw_priv || fw_sysfs_done(fw_priv)) {
-		ret_count = -ENODEV;
-		goto out;
-	}
-	if (offset > fw_priv->size) {
-		ret_count = 0;
-		goto out;
-	}
-	if (count > fw_priv->size - offset)
-		count = fw_priv->size - offset;
-
-	ret_count = count;
-
-	if (fw_priv->data)
-		firmware_rw_data(fw_priv, buffer, offset, count, true);
-	else
-		firmware_rw(fw_priv, buffer, offset, count, true);
-
-out:
-	mutex_unlock(&fw_lock);
-	return ret_count;
-}
-
-static int fw_realloc_pages(struct fw_sysfs *fw_sysfs, int min_size)
-{
-	struct fw_priv *fw_priv= fw_sysfs->fw_priv;
-	int pages_needed = PAGE_ALIGN(min_size) >> PAGE_SHIFT;
-
-	/* If the array of pages is too small, grow it... */
-	if (fw_priv->page_array_size < pages_needed) {
-		int new_array_size = max(pages_needed,
-					 fw_priv->page_array_size * 2);
-		struct page **new_pages;
-
-		new_pages = vmalloc(new_array_size * sizeof(void *));
-		if (!new_pages) {
-			fw_load_abort(fw_sysfs);
-			return -ENOMEM;
-		}
-		memcpy(new_pages, fw_priv->pages,
-		       fw_priv->page_array_size * sizeof(void *));
-		memset(&new_pages[fw_priv->page_array_size], 0, sizeof(void *) *
-		       (new_array_size - fw_priv->page_array_size));
-		vfree(fw_priv->pages);
-		fw_priv->pages = new_pages;
-		fw_priv->page_array_size = new_array_size;
-	}
-
-	while (fw_priv->nr_pages < pages_needed) {
-		fw_priv->pages[fw_priv->nr_pages] =
-			alloc_page(GFP_KERNEL | __GFP_HIGHMEM);
-
-		if (!fw_priv->pages[fw_priv->nr_pages]) {
-			fw_load_abort(fw_sysfs);
-			return -ENOMEM;
-		}
-		fw_priv->nr_pages++;
-	}
-	return 0;
-}
-
-/**
- * firmware_data_write - write method for firmware
- * @filp: open sysfs file
- * @kobj: kobject for the device
- * @bin_attr: bin_attr structure
- * @buffer: buffer being written
- * @offset: buffer offset for write in total data store area
- * @count: buffer size
- *
- *	Data written to the 'data' attribute will be later handed to
- *	the driver as a firmware image.
- **/
-static ssize_t firmware_data_write(struct file *filp, struct kobject *kobj,
-				   struct bin_attribute *bin_attr,
-				   char *buffer, loff_t offset, size_t count)
-{
-	struct device *dev = kobj_to_dev(kobj);
-	struct fw_sysfs *fw_sysfs = to_fw_sysfs(dev);
-	struct fw_priv *fw_priv;
-	ssize_t retval;
-
-	if (!capable(CAP_SYS_RAWIO))
-		return -EPERM;
-
-	mutex_lock(&fw_lock);
-	fw_priv = fw_sysfs->fw_priv;
-	if (!fw_priv || fw_sysfs_done(fw_priv)) {
-		retval = -ENODEV;
-		goto out;
-	}
-
-	if (fw_priv->data) {
-		if (offset + count > fw_priv->allocated_size) {
-			retval = -ENOMEM;
-			goto out;
-		}
-		firmware_rw_data(fw_priv, buffer, offset, count, false);
-		retval = count;
-	} else {
-		retval = fw_realloc_pages(fw_sysfs, offset + count);
-		if (retval)
-			goto out;
-
-		retval = count;
-		firmware_rw(fw_priv, buffer, offset, count, false);
-	}
-
-	fw_priv->size = max_t(size_t, offset + count, fw_priv->size);
-out:
-	mutex_unlock(&fw_lock);
-	return retval;
-}
-
-static struct bin_attribute firmware_attr_data = {
-	.attr = { .name = "data", .mode = 0644 },
-	.size = 0,
-	.read = firmware_data_read,
-	.write = firmware_data_write,
-};
-
-static struct attribute *fw_dev_attrs[] = {
-	&dev_attr_loading.attr,
-	NULL
-};
-
-static struct bin_attribute *fw_dev_bin_attrs[] = {
-	&firmware_attr_data,
-	NULL
-};
-
-static const struct attribute_group fw_dev_attr_group = {
-	.attrs = fw_dev_attrs,
-	.bin_attrs = fw_dev_bin_attrs,
-};
-
-static const struct attribute_group *fw_dev_attr_groups[] = {
-	&fw_dev_attr_group,
-	NULL
-};
-
-static struct fw_sysfs *
-fw_create_instance(struct firmware *firmware, const char *fw_name,
-		   struct device *device, unsigned int opt_flags)
-{
-	struct fw_sysfs *fw_sysfs;
-	struct device *f_dev;
-
-	fw_sysfs = kzalloc(sizeof(*fw_sysfs), GFP_KERNEL);
-	if (!fw_sysfs) {
-		fw_sysfs = ERR_PTR(-ENOMEM);
-		goto exit;
-	}
-
-	fw_sysfs->nowait = !!(opt_flags & FW_OPT_NOWAIT);
-	fw_sysfs->fw = firmware;
-	f_dev = &fw_sysfs->dev;
-
-	device_initialize(f_dev);
-	dev_set_name(f_dev, "%s", fw_name);
-	f_dev->parent = device;
-	f_dev->class = &firmware_class;
-	f_dev->groups = fw_dev_attr_groups;
-exit:
-	return fw_sysfs;
-}
-
-/* load a firmware via user helper */
-static int _request_firmware_load(struct fw_sysfs *fw_sysfs,
-				  unsigned int opt_flags, long timeout)
-{
-	int retval = 0;
-	struct device *f_dev = &fw_sysfs->dev;
-	struct fw_priv *fw_priv = fw_sysfs->fw_priv;
-
-	/* fall back on userspace loading */
-	if (!fw_priv->data)
-		fw_priv->is_paged_buf = true;
-
-	dev_set_uevent_suppress(f_dev, true);
-
-	retval = device_add(f_dev);
-	if (retval) {
-		dev_err(f_dev, "%s: device_register failed\n", __func__);
-		goto err_put_dev;
-	}
-
-	mutex_lock(&fw_lock);
-	list_add(&fw_priv->pending_list, &pending_fw_head);
-	mutex_unlock(&fw_lock);
-
-	if (opt_flags & FW_OPT_UEVENT) {
-		fw_priv->need_uevent = true;
-		dev_set_uevent_suppress(f_dev, false);
-		dev_dbg(f_dev, "firmware: requesting %s\n", fw_priv->fw_name);
-		kobject_uevent(&fw_sysfs->dev.kobj, KOBJ_ADD);
-	} else {
-		timeout = MAX_JIFFY_OFFSET;
-	}
-
-	retval = fw_sysfs_wait_timeout(fw_priv, timeout);
-	if (retval < 0) {
-		mutex_lock(&fw_lock);
-		fw_load_abort(fw_sysfs);
-		mutex_unlock(&fw_lock);
-	}
-
-	if (fw_state_is_aborted(fw_priv)) {
-		if (retval == -ERESTARTSYS)
-			retval = -EINTR;
-		else
-			retval = -EAGAIN;
-	} else if (fw_priv->is_paged_buf && !fw_priv->data)
-		retval = -ENOMEM;
-
-	device_del(f_dev);
-err_put_dev:
-	put_device(f_dev);
-	return retval;
-}
-
-static int fw_load_from_user_helper(struct firmware *firmware,
-				    const char *name, struct device *device,
-				    unsigned int opt_flags)
-{
-	struct fw_sysfs *fw_sysfs;
-	long timeout;
-	int ret;
-
-	timeout = firmware_loading_timeout();
-	if (opt_flags & FW_OPT_NOWAIT) {
-		timeout = usermodehelper_read_lock_wait(timeout);
-		if (!timeout) {
-			dev_dbg(device, "firmware: %s loading timed out\n",
-				name);
-			return -EBUSY;
-		}
-	} else {
-		ret = usermodehelper_read_trylock();
-		if (WARN_ON(ret)) {
-			dev_err(device, "firmware: %s will not be loaded\n",
-				name);
-			return ret;
-		}
-	}
-
-	fw_sysfs = fw_create_instance(firmware, name, device, opt_flags);
-	if (IS_ERR(fw_sysfs)) {
-		ret = PTR_ERR(fw_sysfs);
-		goto out_unlock;
-	}
-
-	fw_sysfs->fw_priv = firmware->priv;
-	ret = _request_firmware_load(fw_sysfs, opt_flags, timeout);
-
-	if (!ret)
-		ret = assign_fw(firmware, device, opt_flags);
-
-out_unlock:
-	usermodehelper_read_unlock();
-
-	return ret;
-}
-
-#ifdef CONFIG_FW_LOADER_USER_HELPER_FALLBACK
-static bool fw_force_sysfs_fallback(unsigned int opt_flags)
-{
-	return true;
-}
-#else
-static bool fw_force_sysfs_fallback(unsigned int opt_flags)
-{
-	if (!(opt_flags & FW_OPT_USERHELPER))
-		return false;
-	return true;
-}
-#endif
-
-static bool fw_run_sysfs_fallback(unsigned int opt_flags)
-{
-	if ((opt_flags & FW_OPT_NOFALLBACK))
-		return false;
-
-	return fw_force_sysfs_fallback(opt_flags);
-}
-
-static int fw_sysfs_fallback(struct firmware *fw, const char *name,
-			    struct device *device,
-			    unsigned int opt_flags,
-			    int ret)
-{
-	if (!fw_run_sysfs_fallback(opt_flags))
-		return ret;
-
-	dev_warn(device, "Falling back to user helper\n");
-	return fw_load_from_user_helper(fw, name, device, opt_flags);
-}
-#else /* CONFIG_FW_LOADER_USER_HELPER */
-static int fw_sysfs_fallback(struct firmware *fw, const char *name,
-			     struct device *device,
-			     unsigned int opt_flags,
-			     int ret)
-{
-	/* Keep carrying over the same error */
-	return ret;
-}
-
-static inline void kill_pending_fw_fallback_reqs(bool only_kill_custom) { }
-
-static inline int register_sysfs_loader(void)
-{
-	return 0;
-}
-
-static inline void unregister_sysfs_loader(void)
-{
-}
-
-#endif /* CONFIG_FW_LOADER_USER_HELPER */
-
 /* prepare firmware and firmware_buf structs;
  * return 0 if a firmware is already assigned, 1 if need to load one,
  * or a negative error code
@@ -1376,6 +656,30 @@ int request_firmware_direct(const struct firmware **firmware_p,
 }
 EXPORT_SYMBOL_GPL(request_firmware_direct);
 
+/**
+ * firmware_request_cache: - cache firmware for suspend so resume can use it
+ * @name: name of firmware file
+ * @device: device for which firmware should be cached for
+ *
+ * There are some devices with an optimization that enables the device to not
+ * require loading firmware on system reboot. This optimization may still
+ * require the firmware present on resume from suspend. This routine can be
+ * used to ensure the firmware is present on resume from suspend in these
+ * situations. This helper is not compatible with drivers which use
+ * request_firmware_into_buf() or request_firmware_nowait() with no uevent set.
+ **/
+int firmware_request_cache(struct device *device, const char *name)
+{
+	int ret;
+
+	mutex_lock(&fw_lock);
+	ret = fw_add_devm_name(device, name);
+	mutex_unlock(&fw_lock);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(firmware_request_cache);
+
 /**
  * request_firmware_into_buf - load firmware into a previously allocated buffer
  * @firmware_p: pointer to firmware image
@@ -1397,6 +701,9 @@ request_firmware_into_buf(const struct firmware **firmware_p, const char *name,
 {
 	int ret;
 
+	if (fw_cache_is_setup(device, name))
+		return -EOPNOTSUPP;
+
 	__module_get(THIS_MODULE);
 	ret = _request_firmware(firmware_p, name, device, buf, size,
 				FW_OPT_UEVENT | FW_OPT_NOCACHE);
@@ -1494,6 +801,12 @@ request_firmware_nowait(
 	fw_work->opt_flags = FW_OPT_NOWAIT |
 		(uevent ? FW_OPT_UEVENT : FW_OPT_USERHELPER);
 
+	if (!uevent && fw_cache_is_setup(device, name)) {
+		kfree_const(fw_work->name);
+		kfree(fw_work);
+		return -EOPNOTSUPP;
+	}
+
 	if (!try_module_get(module)) {
 		kfree_const(fw_work->name);
 		kfree(fw_work);
@@ -1741,7 +1054,6 @@ static void __device_uncache_fw_images(void)
 static void device_cache_fw_images(void)
 {
 	struct firmware_cache *fwc = &fw_cache;
-	int old_timeout;
 	DEFINE_WAIT(wait);
 
 	pr_debug("%s\n", __func__);
@@ -1749,16 +1061,7 @@ static void device_cache_fw_images(void)
 	/* cancel uncache work */
 	cancel_delayed_work_sync(&fwc->work);
 
-	/*
-	 * use small loading timeout for caching devices' firmware
-	 * because all these firmware images have been loaded
-	 * successfully at lease once, also system is ready for
-	 * completing firmware loading now. The maximum size of
-	 * firmware in current distributions is about 2M bytes,
-	 * so 10 secs should be enough.
-	 */
-	old_timeout = loading_timeout;
-	loading_timeout = 10;
+	fw_fallback_set_cache_timeout();
 
 	mutex_lock(&fw_lock);
 	fwc->state = FW_LOADER_START_CACHE;
@@ -1768,7 +1071,7 @@ static void device_cache_fw_images(void)
 	/* wait for completion of caching firmware for all devices */
 	async_synchronize_full_domain(&fw_cache_domain);
 
-	loading_timeout = old_timeout;
+	fw_fallback_set_default_timeout();
 }
 
 /**
diff --git a/drivers/base/node.c b/drivers/base/node.c
index ee090ab9171c269dfaeade5f1c1c4e5584566e70..c5f81fc621ac27d60842cf7a3fc2b786076ef474 100644
--- a/drivers/base/node.c
+++ b/drivers/base/node.c
@@ -315,7 +315,9 @@ static int register_node(struct node *node, int num)
 	node->dev.groups = node_dev_groups;
 	error = device_register(&node->dev);
 
-	if (!error){
+	if (error)
+		put_device(&node->dev);
+	else {
 		hugetlb_register_node(node);
 
 		compaction_register_node(node);
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index f1bf7b38d91ca7ac69a5477ed08103f59e151bbe..8075ddc70a17825f4aa39cc52e3ef82d48f31263 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -1153,8 +1153,10 @@ int __init platform_bus_init(void)
 	early_platform_cleanup();
 
 	error = device_register(&platform_bus);
-	if (error)
+	if (error) {
+		put_device(&platform_bus);
 		return error;
+	}
 	error =  bus_register(&platform_bus_type);
 	if (error)
 		device_unregister(&platform_bus);
diff --git a/drivers/base/soc.c b/drivers/base/soc.c
index 4e80f48ad5d6ce41dc41e83b4e6c2075dbd9d0d5..10b280f30217bcc6ec72cea2d7ca9612fc299293 100644
--- a/drivers/base/soc.c
+++ b/drivers/base/soc.c
@@ -150,6 +150,8 @@ struct soc_device *soc_device_register(struct soc_device_attribute *soc_dev_attr
 
 out3:
 	ida_simple_remove(&soc_ida, soc_dev->soc_dev_num);
+	put_device(&soc_dev->dev);
+	soc_dev = NULL;
 out2:
 	kfree(soc_dev);
 out1:
diff --git a/drivers/net/wireless/mediatek/mt7601u/mcu.c b/drivers/net/wireless/mediatek/mt7601u/mcu.c
index d9d6fd7eff5ec3c58199af58197be83f7fc07163..61705f679856e27c5a70e29c7a7fdcfe0cb31c06 100644
--- a/drivers/net/wireless/mediatek/mt7601u/mcu.c
+++ b/drivers/net/wireless/mediatek/mt7601u/mcu.c
@@ -420,7 +420,7 @@ static int mt7601u_load_firmware(struct mt7601u_dev *dev)
 					 MT_USB_DMA_CFG_TX_BULK_EN));
 
 	if (firmware_running(dev))
-		return 0;
+		return firmware_request_cache(dev->dev, MT7601U_FIRMWARE);
 
 	ret = request_firmware(&fw, MT7601U_FIRMWARE, dev->dev);
 	if (ret)
diff --git a/include/linux/device.h b/include/linux/device.h
index 4b5a4925b780d736bcbe71707eff43d499755a69..0059b99e1f25db0ef52d09bf50e1239e2fbf14e9 100644
--- a/include/linux/device.h
+++ b/include/linux/device.h
@@ -256,6 +256,7 @@ enum probe_type {
  *		automatically.
  * @pm:		Power management operations of the device which matched
  *		this driver.
+ * @coredump:	Called through sysfs to initiate a device coredump.
  * @p:		Driver core's private data, no one other than the driver
  *		core can touch this.
  *
diff --git a/include/linux/firmware.h b/include/linux/firmware.h
index d4508080348d301444a50cfadf6947ac363147a5..41050417cafb7d6def0a248e743197395537809a 100644
--- a/include/linux/firmware.h
+++ b/include/linux/firmware.h
@@ -85,4 +85,7 @@ static inline int request_firmware_into_buf(const struct firmware **firmware_p,
 }
 
 #endif
+
+int firmware_request_cache(struct device *device, const char *name);
+
 #endif
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index f98f28c12020f2ee2ec74df74600819ff017e7e8..bdf7090b106dadb817ad924b09a2cafcc4fc26de 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -253,6 +253,10 @@ extern struct ctl_table random_table[];
 extern struct ctl_table epoll_table[];
 #endif
 
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+extern struct ctl_table firmware_config_table[];
+#endif
+
 #ifdef HAVE_ARCH_PICK_MMAP_LAYOUT
 int sysctl_legacy_va_layout;
 #endif
@@ -748,6 +752,13 @@ static struct ctl_table kern_table[] = {
 		.mode		= 0555,
 		.child		= usermodehelper_table,
 	},
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+	{
+		.procname	= "firmware_config",
+		.mode		= 0555,
+		.child		= firmware_config_table,
+	},
+#endif
 	{
 		.procname	= "overflowuid",
 		.data		= &overflowuid,
diff --git a/lib/kobject.c b/lib/kobject.c
index afd5a3fc6123316795308ba426fd303ba4d717f7..e1d1f290bf354540c9148863c931c3f1d38278cf 100644
--- a/lib/kobject.c
+++ b/lib/kobject.c
@@ -204,8 +204,9 @@ static int kobject_add_internal(struct kobject *kobj)
 		return -ENOENT;
 
 	if (!kobj->name || !kobj->name[0]) {
-		WARN(1, "kobject: (%p): attempted to be registered with empty "
-			 "name!\n", kobj);
+		WARN(1,
+		     "kobject: (%p): attempted to be registered with empty name!\n",
+		     kobj);
 		return -EINVAL;
 	}
 
@@ -232,9 +233,8 @@ static int kobject_add_internal(struct kobject *kobj)
 
 		/* be noisy on error issues */
 		if (error == -EEXIST)
-			WARN(1, "%s failed for %s with "
-			     "-EEXIST, don't try to register things with "
-			     "the same name in the same directory.\n",
+			WARN(1,
+			     "%s failed for %s with -EEXIST, don't try to register things with the same name in the same directory.\n",
 			     __func__, kobject_name(kobj));
 		else
 			WARN(1, "%s failed for %s (error: %d parent: %s)\n",
@@ -334,8 +334,8 @@ void kobject_init(struct kobject *kobj, struct kobj_type *ktype)
 	}
 	if (kobj->state_initialized) {
 		/* do not error out as sometimes we can recover */
-		printk(KERN_ERR "kobject (%p): tried to init an initialized "
-		       "object, something is seriously wrong.\n", kobj);
+		pr_err("kobject (%p): tried to init an initialized object, something is seriously wrong.\n",
+		       kobj);
 		dump_stack();
 	}
 
@@ -344,7 +344,7 @@ void kobject_init(struct kobject *kobj, struct kobj_type *ktype)
 	return;
 
 error:
-	printk(KERN_ERR "kobject (%p): %s\n", kobj, err_str);
+	pr_err("kobject (%p): %s\n", kobj, err_str);
 	dump_stack();
 }
 EXPORT_SYMBOL(kobject_init);
@@ -357,7 +357,7 @@ static __printf(3, 0) int kobject_add_varg(struct kobject *kobj,
 
 	retval = kobject_set_name_vargs(kobj, fmt, vargs);
 	if (retval) {
-		printk(KERN_ERR "kobject: can not set name properly!\n");
+		pr_err("kobject: can not set name properly!\n");
 		return retval;
 	}
 	kobj->parent = parent;
@@ -399,8 +399,7 @@ int kobject_add(struct kobject *kobj, struct kobject *parent,
 		return -EINVAL;
 
 	if (!kobj->state_initialized) {
-		printk(KERN_ERR "kobject '%s' (%p): tried to add an "
-		       "uninitialized object, something is seriously wrong.\n",
+		pr_err("kobject '%s' (%p): tried to add an uninitialized object, something is seriously wrong.\n",
 		       kobject_name(kobj), kobj);
 		dump_stack();
 		return -EINVAL;
@@ -590,9 +589,9 @@ struct kobject *kobject_get(struct kobject *kobj)
 {
 	if (kobj) {
 		if (!kobj->state_initialized)
-			WARN(1, KERN_WARNING "kobject: '%s' (%p): is not "
-			       "initialized, yet kobject_get() is being "
-			       "called.\n", kobject_name(kobj), kobj);
+			WARN(1, KERN_WARNING
+				"kobject: '%s' (%p): is not initialized, yet kobject_get() is being called.\n",
+			     kobject_name(kobj), kobj);
 		kref_get(&kobj->kref);
 	}
 	return kobj;
@@ -622,8 +621,7 @@ static void kobject_cleanup(struct kobject *kobj)
 		 kobject_name(kobj), kobj, __func__, kobj->parent);
 
 	if (t && !t->release)
-		pr_debug("kobject: '%s' (%p): does not have a release() "
-			 "function, it is broken and must be fixed.\n",
+		pr_debug("kobject: '%s' (%p): does not have a release() function, it is broken and must be fixed.\n",
 			 kobject_name(kobj), kobj);
 
 	/* send "remove" if the caller did not do it but sent "add" */
@@ -686,9 +684,9 @@ void kobject_put(struct kobject *kobj)
 {
 	if (kobj) {
 		if (!kobj->state_initialized)
-			WARN(1, KERN_WARNING "kobject: '%s' (%p): is not "
-			       "initialized, yet kobject_put() is being "
-			       "called.\n", kobject_name(kobj), kobj);
+			WARN(1, KERN_WARNING
+				"kobject: '%s' (%p): is not initialized, yet kobject_put() is being called.\n",
+			     kobject_name(kobj), kobj);
 		kref_put(&kobj->kref, kobject_release);
 	}
 }
@@ -752,8 +750,7 @@ struct kobject *kobject_create_and_add(const char *name, struct kobject *parent)
 
 	retval = kobject_add(kobj, parent, "%s", name);
 	if (retval) {
-		printk(KERN_WARNING "%s: kobject_add error: %d\n",
-		       __func__, retval);
+		pr_warn("%s: kobject_add error: %d\n", __func__, retval);
 		kobject_put(kobj);
 		kobj = NULL;
 	}
diff --git a/tools/testing/selftests/firmware/Makefile b/tools/testing/selftests/firmware/Makefile
index 1894d625af2da540803c0ef70b3502db4f1c190d..826f38d5dd19f1a0455cdc1074bdd83b6dce02c5 100644
--- a/tools/testing/selftests/firmware/Makefile
+++ b/tools/testing/selftests/firmware/Makefile
@@ -3,7 +3,7 @@
 # No binaries, but make sure arg-less "make" doesn't trigger "run_tests"
 all:
 
-TEST_PROGS := fw_filesystem.sh fw_fallback.sh
+TEST_PROGS := fw_run_tests.sh
 
 include ../lib.mk
 
diff --git a/tools/testing/selftests/firmware/config b/tools/testing/selftests/firmware/config
index c8137f70e2913146acb5417145ceb3cf63246fea..bf634dda07201fe7108f16496834543223164204 100644
--- a/tools/testing/selftests/firmware/config
+++ b/tools/testing/selftests/firmware/config
@@ -1 +1,5 @@
 CONFIG_TEST_FIRMWARE=y
+CONFIG_FW_LOADER=y
+CONFIG_FW_LOADER_USER_HELPER=y
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
diff --git a/tools/testing/selftests/firmware/fw_fallback.sh b/tools/testing/selftests/firmware/fw_fallback.sh
index 722cad91df741bcb16ae736c528b64f7a410a9f6..8e2e34a2ca696148ed875f41050c3f492888647c 100755
--- a/tools/testing/selftests/firmware/fw_fallback.sh
+++ b/tools/testing/selftests/firmware/fw_fallback.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 # This validates that the kernel will fall back to using the fallback mechanism
 # to load firmware it can't find on disk itself. We must request a firmware
@@ -6,31 +6,17 @@
 # won't find so that we can do the load ourself manually.
 set -e
 
-modprobe test_firmware
+TEST_REQS_FW_SYSFS_FALLBACK="yes"
+TEST_REQS_FW_SET_CUSTOM_PATH="no"
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
 
-DIR=/sys/devices/virtual/misc/test_firmware
+check_mods
+check_setup
+verify_reqs
+setup_tmp_file
 
-# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
-# These days no one enables CONFIG_FW_LOADER_USER_HELPER so check for that
-# as an indicator for CONFIG_FW_LOADER_USER_HELPER.
-HAS_FW_LOADER_USER_HELPER=$(if [ -d /sys/class/firmware/ ]; then echo yes; else echo no; fi)
-
-if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
-       OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
-else
-	echo "usermode helper disabled so ignoring test"
-	exit 0
-fi
-
-FWPATH=$(mktemp -d)
-FW="$FWPATH/test-firmware.bin"
-
-test_finish()
-{
-	echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
-	rm -f "$FW"
-	rmdir "$FWPATH"
-}
+trap "test_finish" EXIT
 
 load_fw()
 {
@@ -169,12 +155,6 @@ load_fw_fallback_with_child()
 	return $RET
 }
 
-trap "test_finish" EXIT
-
-# This is an unlikely real-world firmware content. :)
-echo "ABCD0123" >"$FW"
-NAME=$(basename "$FW")
-
 test_syfs_timeout()
 {
 	DEVPATH="$DIR"/"nope-$NAME"/loading
@@ -258,8 +238,10 @@ run_sysfs_main_tests()
 
 run_sysfs_custom_load_tests()
 {
-	if load_fw_custom "$NAME" "$FW" ; then
-		if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+	RANDOM_FILE_PATH=$(setup_random_file)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	if load_fw_custom "$RANDOM_FILE" "$RANDOM_FILE_PATH" ; then
+		if ! diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
 			echo "$0: firmware was not loaded" >&2
 			exit 1
 		else
@@ -267,8 +249,10 @@ run_sysfs_custom_load_tests()
 		fi
 	fi
 
-	if load_fw_custom "$NAME" "$FW" ; then
-		if ! diff -q "$FW" /dev/test_firmware >/dev/null ; then
+	RANDOM_FILE_PATH=$(setup_random_file)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	if load_fw_custom "$RANDOM_FILE" "$RANDOM_FILE_PATH" ; then
+		if ! diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
 			echo "$0: firmware was not loaded" >&2
 			exit 1
 		else
@@ -276,8 +260,12 @@ run_sysfs_custom_load_tests()
 		fi
 	fi
 
-	if load_fw_custom_cancel "nope-$NAME" "$FW" ; then
-		if diff -q "$FW" /dev/test_firmware >/dev/null ; then
+	RANDOM_FILE_REAL="$RANDOM_FILE_PATH"
+	FAKE_RANDOM_FILE_PATH=$(setup_random_file_fake)
+	FAKE_RANDOM_FILE="$(basename $FAKE_RANDOM_FILE_PATH)"
+
+	if load_fw_custom_cancel "$FAKE_RANDOM_FILE" "$RANDOM_FILE_REAL" ; then
+		if diff -q "$RANDOM_FILE_PATH" /dev/test_firmware >/dev/null ; then
 			echo "$0: firmware was expected to be cancelled" >&2
 			exit 1
 		else
@@ -286,7 +274,10 @@ run_sysfs_custom_load_tests()
 	fi
 }
 
-run_sysfs_main_tests
+if [ "$HAS_FW_LOADER_USER_HELPER_FALLBACK" = "yes" ]; then
+	run_sysfs_main_tests
+fi
+
 run_sysfs_custom_load_tests
 
 exit 0
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index f9508e1a4058995098df7cea4b70bc65418a1d34..6452d2129cd9d41e6767327cb8ca8448740039db 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 # This validates that the kernel will load firmware out of its list of
 # firmware locations on disk. Since the user helper does similar work,
@@ -6,52 +6,15 @@
 # know so we can be sure we're not accidentally testing the user helper.
 set -e
 
-DIR=/sys/devices/virtual/misc/test_firmware
+TEST_REQS_FW_SYSFS_FALLBACK="no"
+TEST_REQS_FW_SET_CUSTOM_PATH="yes"
 TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
 
-test_modprobe()
-{
-	if [ ! -d $DIR ]; then
-		echo "$0: $DIR not present"
-		echo "You must have the following enabled in your kernel:"
-		cat $TEST_DIR/config
-		exit 1
-	fi
-}
-
-trap "test_modprobe" EXIT
-
-if [ ! -d $DIR ]; then
-	modprobe test_firmware
-fi
-
-# CONFIG_FW_LOADER_USER_HELPER has a sysfs class under /sys/class/firmware/
-# These days most distros enable CONFIG_FW_LOADER_USER_HELPER but disable
-# CONFIG_FW_LOADER_USER_HELPER_FALLBACK. We use /sys/class/firmware/ as an
-# indicator for CONFIG_FW_LOADER_USER_HELPER.
-HAS_FW_LOADER_USER_HELPER=$(if [ -d /sys/class/firmware/ ]; then echo yes; else echo no; fi)
-
-if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
-	OLD_TIMEOUT=$(cat /sys/class/firmware/timeout)
-fi
-
-OLD_FWPATH=$(cat /sys/module/firmware_class/parameters/path)
-
-FWPATH=$(mktemp -d)
-FW="$FWPATH/test-firmware.bin"
-
-test_finish()
-{
-	if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
-		echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
-	fi
-	if [ "$OLD_FWPATH" = "" ]; then
-		OLD_FWPATH=" "
-	fi
-	echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path
-	rm -f "$FW"
-	rmdir "$FWPATH"
-}
+check_mods
+check_setup
+verify_reqs
+setup_tmp_file
 
 trap "test_finish" EXIT
 
@@ -60,14 +23,6 @@ if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
 	echo 1 >/sys/class/firmware/timeout
 fi
 
-# Set the kernel search path.
-echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path
-
-# This is an unlikely real-world firmware content. :)
-echo "ABCD0123" >"$FW"
-
-NAME=$(basename "$FW")
-
 if printf '\000' >"$DIR"/trigger_request 2> /dev/null; then
 	echo "$0: empty filename should not succeed" >&2
 	exit 1
@@ -275,10 +230,13 @@ test_wait_and_cancel_custom_load()
 test_request_firmware_nowait_custom_nofile()
 {
 	echo -n "Batched request_firmware_nowait(uevent=false) nofile try #$1: "
+	config_reset
 	config_unset_uevent
-	config_set_name nope-test-firmware.bin
+	RANDOM_FILE_PATH=$(setup_random_file_fake)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	config_set_name $RANDOM_FILE
 	config_trigger_async &
-	test_wait_and_cancel_custom_load nope-test-firmware.bin
+	test_wait_and_cancel_custom_load $RANDOM_FILE
 	wait
 	release_all_firmware
 	echo "OK"
@@ -316,7 +274,11 @@ test_request_firmware_nowait_uevent()
 test_request_firmware_nowait_custom()
 {
 	echo -n "Batched request_firmware_nowait(uevent=false) try #$1: "
+	config_reset
 	config_unset_uevent
+	RANDOM_FILE_PATH=$(setup_random_file)
+	RANDOM_FILE="$(basename $RANDOM_FILE_PATH)"
+	config_set_name $RANDOM_FILE
 	config_trigger_async
 	release_all_firmware
 	echo "OK"
diff --git a/tools/testing/selftests/firmware/fw_lib.sh b/tools/testing/selftests/firmware/fw_lib.sh
new file mode 100755
index 0000000000000000000000000000000000000000..9ea31b57d71a60008430b56a1b1498ed0184ec86
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_lib.sh
@@ -0,0 +1,194 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# Library of helpers for test scripts.
+set -e
+
+DIR=/sys/devices/virtual/misc/test_firmware
+
+PROC_CONFIG="/proc/config.gz"
+TEST_DIR=$(dirname $0)
+
+print_reqs_exit()
+{
+	echo "You must have the following enabled in your kernel:" >&2
+	cat $TEST_DIR/config >&2
+	exit 1
+}
+
+test_modprobe()
+{
+	if [ ! -d $DIR ]; then
+		print_reqs_exit
+	fi
+}
+
+check_mods()
+{
+	trap "test_modprobe" EXIT
+	if [ ! -d $DIR ]; then
+		modprobe test_firmware
+	fi
+	if [ ! -f $PROC_CONFIG ]; then
+		if modprobe configs 2>/dev/null; then
+			echo "Loaded configs module"
+			if [ ! -f $PROC_CONFIG ]; then
+				echo "You must have the following enabled in your kernel:" >&2
+				cat $TEST_DIR/config >&2
+				echo "Resorting to old heuristics" >&2
+			fi
+		else
+			echo "Failed to load configs module, using old heuristics" >&2
+		fi
+	fi
+}
+
+check_setup()
+{
+	HAS_FW_LOADER_USER_HELPER="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER=y)"
+	HAS_FW_LOADER_USER_HELPER_FALLBACK="$(kconfig_has CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y)"
+	PROC_FW_IGNORE_SYSFS_FALLBACK="0"
+	PROC_FW_FORCE_SYSFS_FALLBACK="0"
+
+	if [ -z $PROC_SYS_DIR ]; then
+		PROC_SYS_DIR="/proc/sys/kernel"
+	fi
+
+	FW_PROC="${PROC_SYS_DIR}/firmware_config"
+	FW_FORCE_SYSFS_FALLBACK="$FW_PROC/force_sysfs_fallback"
+	FW_IGNORE_SYSFS_FALLBACK="$FW_PROC/ignore_sysfs_fallback"
+
+	if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+		PROC_FW_FORCE_SYSFS_FALLBACK="$(cat $FW_FORCE_SYSFS_FALLBACK)"
+	fi
+
+	if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then
+		PROC_FW_IGNORE_SYSFS_FALLBACK="$(cat $FW_IGNORE_SYSFS_FALLBACK)"
+	fi
+
+	if [ "$PROC_FW_FORCE_SYSFS_FALLBACK" = "1" ]; then
+		HAS_FW_LOADER_USER_HELPER="yes"
+		HAS_FW_LOADER_USER_HELPER_FALLBACK="yes"
+	fi
+
+	if [ "$PROC_FW_IGNORE_SYSFS_FALLBACK" = "1" ]; then
+		HAS_FW_LOADER_USER_HELPER_FALLBACK="no"
+		HAS_FW_LOADER_USER_HELPER="no"
+	fi
+
+	if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+	       OLD_TIMEOUT="$(cat /sys/class/firmware/timeout)"
+	fi
+
+	OLD_FWPATH="$(cat /sys/module/firmware_class/parameters/path)"
+}
+
+verify_reqs()
+{
+	if [ "$TEST_REQS_FW_SYSFS_FALLBACK" = "yes" ]; then
+		if [ ! "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+			echo "usermode helper disabled so ignoring test"
+			exit 0
+		fi
+	fi
+}
+
+setup_tmp_file()
+{
+	FWPATH=$(mktemp -d)
+	FW="$FWPATH/test-firmware.bin"
+	echo "ABCD0123" >"$FW"
+	NAME=$(basename "$FW")
+	if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then
+		echo -n "$FWPATH" >/sys/module/firmware_class/parameters/path
+	fi
+}
+
+__setup_random_file()
+{
+	RANDOM_FILE_PATH="$(mktemp -p $FWPATH)"
+	# mktemp says dry-run -n is unsafe, so...
+	if [[ "$1" = "fake" ]]; then
+		rm -rf $RANDOM_FILE_PATH
+		sync
+	else
+		echo "ABCD0123" >"$RANDOM_FILE_PATH"
+	fi
+	echo $RANDOM_FILE_PATH
+}
+
+setup_random_file()
+{
+	echo $(__setup_random_file)
+}
+
+setup_random_file_fake()
+{
+	echo $(__setup_random_file fake)
+}
+
+proc_set_force_sysfs_fallback()
+{
+	if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+		echo -n $1 > $FW_FORCE_SYSFS_FALLBACK
+		check_setup
+	fi
+}
+
+proc_set_ignore_sysfs_fallback()
+{
+	if [ -f $FW_IGNORE_SYSFS_FALLBACK ]; then
+		echo -n $1 > $FW_IGNORE_SYSFS_FALLBACK
+		check_setup
+	fi
+}
+
+proc_restore_defaults()
+{
+	proc_set_force_sysfs_fallback 0
+	proc_set_ignore_sysfs_fallback 0
+}
+
+test_finish()
+{
+	if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
+		echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
+	fi
+	if [ "$OLD_FWPATH" = "" ]; then
+		OLD_FWPATH=" "
+	fi
+	if [ "$TEST_REQS_FW_SET_CUSTOM_PATH" = "yes" ]; then
+		echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path
+	fi
+	if [ -f $FW ]; then
+		rm -f "$FW"
+	fi
+	if [ -d $FWPATH ]; then
+		rm -rf "$FWPATH"
+	fi
+	proc_restore_defaults
+}
+
+kconfig_has()
+{
+	if [ -f $PROC_CONFIG ]; then
+		if zgrep -q $1 $PROC_CONFIG 2>/dev/null; then
+			echo "yes"
+		else
+			echo "no"
+		fi
+	else
+		# We currently don't have easy heuristics to infer this
+		# so best we can do is just try to use the kernel assuming
+		# you had enabled it. This matches the old behaviour.
+		if [ "$1" = "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y" ]; then
+			echo "yes"
+		elif [ "$1" = "CONFIG_FW_LOADER_USER_HELPER=y" ]; then
+			if [ -d /sys/class/firmware/ ]; then
+				echo yes
+			else
+				echo no
+			fi
+		fi
+	fi
+}
diff --git a/tools/testing/selftests/firmware/fw_run_tests.sh b/tools/testing/selftests/firmware/fw_run_tests.sh
new file mode 100755
index 0000000000000000000000000000000000000000..06d638e9dc62748bf33bfbf7dbcb37f9494fdc00
--- /dev/null
+++ b/tools/testing/selftests/firmware/fw_run_tests.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This runs all known tests across all known possible configurations we could
+# emulate in one run.
+
+set -e
+
+TEST_DIR=$(dirname $0)
+source $TEST_DIR/fw_lib.sh
+
+export HAS_FW_LOADER_USER_HELPER=""
+export HAS_FW_LOADER_USER_HELPER_FALLBACK=""
+
+run_tests()
+{
+	proc_set_force_sysfs_fallback $1
+	proc_set_ignore_sysfs_fallback $2
+	$TEST_DIR/fw_filesystem.sh
+
+	proc_set_force_sysfs_fallback $1
+	proc_set_ignore_sysfs_fallback $2
+	$TEST_DIR/fw_fallback.sh
+}
+
+run_test_config_0001()
+{
+	echo "-----------------------------------------------------"
+	echo "Running kernel configuration test 1 -- rare"
+	echo "Emulates:"
+	echo "CONFIG_FW_LOADER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER=n"
+	echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n"
+	run_tests 0 1
+}
+
+run_test_config_0002()
+{
+	echo "-----------------------------------------------------"
+	echo "Running kernel configuration test 2 -- distro"
+	echo "Emulates:"
+	echo "CONFIG_FW_LOADER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=n"
+	proc_set_ignore_sysfs_fallback 0
+	run_tests 0 0
+}
+
+run_test_config_0003()
+{
+	echo "-----------------------------------------------------"
+	echo "Running kernel configuration test 3 -- android"
+	echo "Emulates:"
+	echo "CONFIG_FW_LOADER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER=y"
+	echo "CONFIG_FW_LOADER_USER_HELPER_FALLBACK=y"
+	run_tests 1 0
+}
+
+check_mods
+check_setup
+
+if [ -f $FW_FORCE_SYSFS_FALLBACK ]; then
+	run_test_config_0001
+	run_test_config_0002
+	run_test_config_0003
+else
+	echo "Running basic kernel configuration, working with your config"
+	run_test
+fi