Merge branch 'acpi-assorted'

* acpi-assorted:
  ACPI / osl: Kill macro INVALID_TABLE().
  earlycpio.c: Fix the confusing comment of find_cpio_data().
  ACPI / x86: Print Hot-Pluggable Field in SRAT.
  ACPI / thermal: Use THERMAL_TRIPS_NONE macro to replace number
  ACPI / thermal: Remove unused macros in the driver/acpi/thermal.c
  ACPI / thermal: Remove the unused lock of struct acpi_thermal
  ACPI / osl: Fix osi_setup_entries[] __initdata attribute location
  ACPI / numa: Fix __init attribute location in slit_valid()
  ACPI / dock: Fix __init attribute location in find_dock_and_bay()
  ACPI / Sleep: Fix incorrect placement of __initdata
  ACPI / processor: Fix incorrect placement of __initdata
  ACPI / EC: Fix incorrect placement of __initdata
  ACPI / scan: Drop unnecessary label from acpi_create_platform_device()
  ACPI: Move acpi_bus_get_device() from bus.c to scan.c
  ACPI / scan: Allow platform device creation without any IO resources
  ACPI: Cleanup sparse warning on acpi_os_initialize1()
  platform / thinkpad: Remove deprecated hotkey_report_mode parameter
  ACPI: Remove the old /proc/acpi/event interface

28 files changed, 70 insertions, 393 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 100bd724f648..3278a210c435 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -91,24 +91,6 @@ config ACPI_EC_DEBUGFS
           Thus this option is a debug option that helps to write ACPI drivers
           and can be used to identify ACPI code or EC firmware bugs.
 
-config ACPI_PROC_EVENT
-        bool "Deprecated /proc/acpi/event support"
-        depends on PROC_FS
-        default y
-        help
-          A user-space daemon, acpid, typically reads /proc/acpi/event
-          and handles all ACPI-generated events.
-
-          These events are now delivered to user-space either
-          via the input layer or as netlink events.
-
-          This build option enables the old code for legacy
-          user-space implementation.  After some time, this will
-          be moved under CONFIG_ACPI_PROCFS, and then deleted.
-
-          Say Y here to retain the old behaviour.  Say N if your
-          user-space is newer than kernel 2.6.23 (September 2007).
-
 config ACPI_AC
         tristate "AC Adapter"
         depends on X86
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 4f4e741d34b2..f37beaa32750 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -267,7 +267,6 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
                         msleep(ac_sleep_before_get_state_ms);
 
                 acpi_ac_get_state(ac);
-                acpi_bus_generate_proc_event(device, event, (u32) ac->state);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   dev_name(&device->dev), event,
                                                   (u32) ac->state);
diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c
index 27bb6a91de5f..6230637054c6 100644
--- a/drivers/acpi/acpi_pad.c
+++ b/drivers/acpi/acpi_pad.c
@@ -452,7 +452,6 @@ static void acpi_pad_notify(acpi_handle handle, u32 event,
         switch (event) {
         case ACPI_PROCESSOR_AGGREGATOR_NOTIFY:
                 acpi_pad_handle_notify(handle);
-                acpi_bus_generate_proc_event(device, event, 0);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                         dev_name(&device->dev), event, 0);
                 break;
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index fafec5ddf17f..1bde12708f9e 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -52,7 +52,7 @@ int acpi_create_platform_device(struct acpi_device *adev,
         struct platform_device_info pdevinfo;
         struct resource_list_entry *rentry;
         struct list_head resource_list;
-        struct resource *resources;
+        struct resource *resources = NULL;
         int count;
 
         /* If the ACPI node already has a physical device attached, skip it. */
@@ -61,20 +61,22 @@ int acpi_create_platform_device(struct acpi_device *adev,
 
         INIT_LIST_HEAD(&resource_list);
         count = acpi_dev_get_resources(adev, &resource_list, NULL, NULL);
-        if (count <= 0)
+        if (count < 0) {
                 return 0;
+        } else if (count > 0) {
+                resources = kmalloc(count * sizeof(struct resource),
+                                    GFP_KERNEL);
+                if (!resources) {
+                        dev_err(&adev->dev, "No memory for resources\n");
+                        acpi_dev_free_resource_list(&resource_list);
+                        return -ENOMEM;
+                }
+                count = 0;
+                list_for_each_entry(rentry, &resource_list, node)
+                        resources[count++] = rentry->res;
 
-        resources = kmalloc(count * sizeof(struct resource), GFP_KERNEL);
-        if (!resources) {
-                dev_err(&adev->dev, "No memory for resources\n");
                 acpi_dev_free_resource_list(&resource_list);
-                return -ENOMEM;
         }
-        count = 0;
-        list_for_each_entry(rentry, &resource_list, node)
-                resources[count++] = rentry->res;
-
-        acpi_dev_free_resource_list(&resource_list);
 
         memset(&pdevinfo, 0, sizeof(pdevinfo));
         /*
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index da9fcaac1e85..2c9958cd7a43 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -1028,8 +1028,6 @@ static void acpi_battery_notify(struct acpi_device *device, u32 event)
         if (event == ACPI_BATTERY_NOTIFY_INFO)
                 acpi_battery_refresh(battery);
         acpi_battery_update(battery);
-        acpi_bus_generate_proc_event(device, event,
-                                     acpi_battery_present(battery));
         acpi_bus_generate_netlink_event(device->pnp.device_class,
                                         dev_name(&device->dev), event,
                                         acpi_battery_present(battery));
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 6fd27a9abcda..b587ec8257b2 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -89,27 +89,6 @@ static struct dmi_system_id dsdt_dmi_table[] __initdata = {
                                 Device Management
    -------------------------------------------------------------------------- */
 
-int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
-{
-        acpi_status status;
-
-        if (!device)
-                return -EINVAL;
-
-        /* TBD: Support fixed-feature devices */
-
-        status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
-        if (ACPI_FAILURE(status) || !*device) {
-                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
-                                  handle));
-                return -ENODEV;
-        }
-
-        return 0;
-}
-
-EXPORT_SYMBOL(acpi_bus_get_device);
-
 acpi_status acpi_bus_get_status_handle(acpi_handle handle,
                                        unsigned long long *sta)
 {
@@ -346,104 +325,6 @@ static void acpi_bus_osc_support(void)
 }
 
 /* --------------------------------------------------------------------------
-                                Event Management
-   -------------------------------------------------------------------------- */
-
-#ifdef CONFIG_ACPI_PROC_EVENT
-static DEFINE_SPINLOCK(acpi_bus_event_lock);
-
-LIST_HEAD(acpi_bus_event_list);
-DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
-
-extern int event_is_open;
-
-int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
-{
-        struct acpi_bus_event *event;
-        unsigned long flags;
-
-        /* drop event on the floor if no one's listening */
-        if (!event_is_open)
-                return 0;
-
-        event = kzalloc(sizeof(struct acpi_bus_event), GFP_ATOMIC);
-        if (!event)
-                return -ENOMEM;
-
-        strcpy(event->device_class, device_class);
-        strcpy(event->bus_id, bus_id);
-        event->type = type;
-        event->data = data;
-
-        spin_lock_irqsave(&acpi_bus_event_lock, flags);
-        list_add_tail(&event->node, &acpi_bus_event_list);
-        spin_unlock_irqrestore(&acpi_bus_event_lock, flags);
-
-        wake_up_interruptible(&acpi_bus_event_queue);
-
-        return 0;
-
-}
-
-EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4);
-
-int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
-{
-        if (!device)
-                return -EINVAL;
-        return acpi_bus_generate_proc_event4(device->pnp.device_class,
-                                             device->pnp.bus_id, type, data);
-}
-
-EXPORT_SYMBOL(acpi_bus_generate_proc_event);
-
-int acpi_bus_receive_event(struct acpi_bus_event *event)
-{
-        unsigned long flags;
-        struct acpi_bus_event *entry = NULL;
-
-        DECLARE_WAITQUEUE(wait, current);
-
-
-        if (!event)
-                return -EINVAL;
-
-        if (list_empty(&acpi_bus_event_list)) {
-
-                set_current_state(TASK_INTERRUPTIBLE);
-                add_wait_queue(&acpi_bus_event_queue, &wait);
-
-                if (list_empty(&acpi_bus_event_list))
-                        schedule();
-
-                remove_wait_queue(&acpi_bus_event_queue, &wait);
-                set_current_state(TASK_RUNNING);
-
-                if (signal_pending(current))
-                        return -ERESTARTSYS;
-        }
-
-        spin_lock_irqsave(&acpi_bus_event_lock, flags);
-        if (!list_empty(&acpi_bus_event_list)) {
-                entry = list_entry(acpi_bus_event_list.next,
-                                   struct acpi_bus_event, node);
-                list_del(&entry->node);
-        }
-        spin_unlock_irqrestore(&acpi_bus_event_lock, flags);
-
-        if (!entry)
-                return -ENODEV;
-
-        memcpy(event, entry, sizeof(struct acpi_bus_event));
-
-        kfree(entry);
-
-        return 0;
-}
-
-#endif  /* CONFIG_ACPI_PROC_EVENT */
-
-/* --------------------------------------------------------------------------
                              Notification Handling
    -------------------------------------------------------------------------- */
 
@@ -695,7 +576,6 @@ static int __init acpi_bus_init(void)
 {
         int result;
         acpi_status status;
-        extern acpi_status acpi_os_initialize1(void);
 
         acpi_os_initialize1();
 
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index d2e617b5b3f6..a55773801c5f 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -303,8 +303,6 @@ static void acpi_button_notify(struct acpi_device *device, u32 event)
 
                         pm_wakeup_event(&device->dev, 0);
                 }
-
-                acpi_bus_generate_proc_event(device, event, ++button->pushed);
                 break;
         default:
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index b527c1bd8bb2..05ea4be01a83 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -908,7 +908,7 @@ err_unregister:
  *
  * This is called by acpi_walk_namespace to look for dock stations and bays.
  */
-static __init acpi_status
+static acpi_status __init
 find_dock_and_bay(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
         if (acpi_dock_match(handle) || is_ejectable_bay(handle))
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 84bf06cec1f2..8dd2d4dce7c3 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -948,7 +948,7 @@ static int ec_enlarge_storm_threshold(const struct dmi_system_id *id)
         return 0;
 }
 
-static struct dmi_system_id __initdata ec_dmi_table[] = {
+static struct dmi_system_id ec_dmi_table[] __initdata = {
         {
         ec_skip_dsdt_scan, "Compal JFL92", {
         DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 1442737cedec..8247fcdde079 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -21,100 +21,6 @@
 #define _COMPONENT              ACPI_SYSTEM_COMPONENT
 ACPI_MODULE_NAME("event");
 
-#ifdef CONFIG_ACPI_PROC_EVENT
-/* Global vars for handling event proc entry */
-static DEFINE_SPINLOCK(acpi_system_event_lock);
-int event_is_open = 0;
-extern struct list_head acpi_bus_event_list;
-extern wait_queue_head_t acpi_bus_event_queue;
-
-static int acpi_system_open_event(struct inode *inode, struct file *file)
-{
-        spin_lock_irq(&acpi_system_event_lock);
-
-        if (event_is_open)
-                goto out_busy;
-
-        event_is_open = 1;
-
-        spin_unlock_irq(&acpi_system_event_lock);
-        return 0;
-
-      out_busy:
-        spin_unlock_irq(&acpi_system_event_lock);
-        return -EBUSY;
-}
-
-static ssize_t
-acpi_system_read_event(struct file *file, char __user * buffer, size_t count,
-                       loff_t * ppos)
-{
-        int result = 0;
-        struct acpi_bus_event event;
-        static char str[ACPI_MAX_STRING];
-        static int chars_remaining = 0;
-        static char *ptr;
-
-        if (!chars_remaining) {
-                memset(&event, 0, sizeof(struct acpi_bus_event));
-
-                if ((file->f_flags & O_NONBLOCK)
-                    && (list_empty(&acpi_bus_event_list)))
-                        return -EAGAIN;
-
-                result = acpi_bus_receive_event(&event);
-                if (result)
-                        return result;
-
-                chars_remaining = sprintf(str, "%s %s %08x %08x\n",
-                                          event.device_class ? event.
-                                          device_class : "<unknown>",
-                                          event.bus_id ? event.
-                                          bus_id : "<unknown>", event.type,
-                                          event.data);
-                ptr = str;
-        }
-
-        if (chars_remaining < count) {
-                count = chars_remaining;
-        }
-
-        if (copy_to_user(buffer, ptr, count))
-                return -EFAULT;
-
-        *ppos += count;
-        chars_remaining -= count;
-        ptr += count;
-
-        return count;
-}
-
-static int acpi_system_close_event(struct inode *inode, struct file *file)
-{
-        spin_lock_irq(&acpi_system_event_lock);
-        event_is_open = 0;
-        spin_unlock_irq(&acpi_system_event_lock);
-        return 0;
-}
-
-static unsigned int acpi_system_poll_event(struct file *file, poll_table * wait)
-{
-        poll_wait(file, &acpi_bus_event_queue, wait);
-        if (!list_empty(&acpi_bus_event_list))
-                return POLLIN | POLLRDNORM;
-        return 0;
-}
-
-static const struct file_operations acpi_system_event_ops = {
-        .owner = THIS_MODULE,
-        .open = acpi_system_open_event,
-        .read = acpi_system_read_event,
-        .release = acpi_system_close_event,
-        .poll = acpi_system_poll_event,
-        .llseek = default_llseek,
-};
-#endif  /* CONFIG_ACPI_PROC_EVENT */
-
 /* ACPI notifier chain */
 static BLOCKING_NOTIFIER_HEAD(acpi_chain_head);
 
@@ -280,9 +186,6 @@ static int acpi_event_genetlink_init(void)
 
 static int __init acpi_event_init(void)
 {
-#ifdef CONFIG_ACPI_PROC_EVENT
-        struct proc_dir_entry *entry;
-#endif
         int error = 0;
 
         if (acpi_disabled)
@@ -293,15 +196,6 @@ static int __init acpi_event_init(void)
         if (error)
                 printk(KERN_WARNING PREFIX
                        "Failed to create genetlink family for ACPI event\n");
-
-#ifdef CONFIG_ACPI_PROC_EVENT
-        /* 'event' [R] */
-        entry = proc_create("event", S_IRUSR, acpi_root_dir,
-                            &acpi_system_event_ops);
-        if (!entry)
-                return -ENODEV;
-#endif
-
         return 0;
 }
 
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 5da44e81dd4d..20f423337e1f 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -23,6 +23,7 @@
 
 #define PREFIX "ACPI: "
 
+acpi_status acpi_os_initialize1(void);
 int init_acpi_device_notify(void);
 int acpi_scan_init(void);
 #ifdef  CONFIG_ACPI_PCI_SLOT
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index 33e609f63585..2e82e5d76930 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -159,7 +159,7 @@ acpi_table_print_srat_entry(struct acpi_subtable_header *header)
  * distance than the others.
  * Do some quick checks here and only use the SLIT if it passes.
  */
-static __init int slit_valid(struct acpi_table_slit *slit)
+static int __init slit_valid(struct acpi_table_slit *slit)
 {
         int i, j;
         int d = slit->locality_count;
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index 2bba9669546a..e5f416c7f66e 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -52,6 +52,7 @@
 #include <acpi/acpi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/processor.h>
+#include "internal.h"
 
 #define _COMPONENT              ACPI_OS_SERVICES
 ACPI_MODULE_NAME("osl");
@@ -566,10 +567,6 @@ static const char * const table_sigs[] = {
         ACPI_SIG_WDRT, ACPI_SIG_DSDT, ACPI_SIG_FADT, ACPI_SIG_PSDT,
         ACPI_SIG_RSDT, ACPI_SIG_XSDT, ACPI_SIG_SSDT, NULL };
 
-/* Non-fatal errors: Affected tables/files are ignored */
-#define INVALID_TABLE(x, path, name)                                    \
-        { pr_err("ACPI OVERRIDE: " x " [%s%s]\n", path, name); continue; }
-
 #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header)
 
 /* Must not increase 10 or needs code modification below */
@@ -596,9 +593,11 @@ void __init acpi_initrd_override(void *data, size_t size)
                 data += offset;
                 size -= offset;
 
-                if (file.size < sizeof(struct acpi_table_header))
-                        INVALID_TABLE("Table smaller than ACPI header",
-                                      cpio_path, file.name);
+                if (file.size < sizeof(struct acpi_table_header)) {
+                        pr_err("ACPI OVERRIDE: Table smaller than ACPI header [%s%s]\n",
+                                cpio_path, file.name);
+                        continue;
+                }
 
                 table = file.data;
 
@@ -606,15 +605,21 @@ void __init acpi_initrd_override(void *data, size_t size)
                         if (!memcmp(table->signature, table_sigs[sig], 4))
                                 break;
 
-                if (!table_sigs[sig])
-                        INVALID_TABLE("Unknown signature",
-                                      cpio_path, file.name);
-                if (file.size != table->length)
-                        INVALID_TABLE("File length does not match table length",
-                                      cpio_path, file.name);
-                if (acpi_table_checksum(file.data, table->length))
-                        INVALID_TABLE("Bad table checksum",
-                                      cpio_path, file.name);
+                if (!table_sigs[sig]) {
+                        pr_err("ACPI OVERRIDE: Unknown signature [%s%s]\n",
+                                cpio_path, file.name);
+                        continue;
+                }
+                if (file.size != table->length) {
+                        pr_err("ACPI OVERRIDE: File length does not match table length [%s%s]\n",
+                                cpio_path, file.name);
+                        continue;
+                }
+                if (acpi_table_checksum(file.data, table->length)) {
+                        pr_err("ACPI OVERRIDE: Bad table checksum [%s%s]\n",
+                                cpio_path, file.name);
+                        continue;
+                }
 
                 pr_info("%4.4s ACPI table found in initrd [%s%s][0x%x]\n",
                         table->signature, cpio_path, file.name, table->length);
@@ -1354,8 +1359,8 @@ struct osi_setup_entry {
         bool enable;
 };
 
-static struct osi_setup_entry __initdata
-                osi_setup_entries[OSI_STRING_ENTRIES_MAX] = {
+static struct osi_setup_entry
+                osi_setup_entries[OSI_STRING_ENTRIES_MAX] __initdata = {
         {"Module Device", true},
         {"Processor Device", true},
         {"3.0 _SCP Extensions", true},
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index a5e9f4a5b281..cf34d903f4fb 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -28,7 +28,7 @@ static int __init set_no_mwait(const struct dmi_system_id *id)
         return 0;
 }
 
-static struct dmi_system_id __initdata processor_idle_dmi_table[] = {
+static struct dmi_system_id processor_idle_dmi_table[] __initdata = {
         {
         set_no_mwait, "Extensa 5220", {
         DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index 870eaf5fa547..bd11ef93b0ce 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -91,21 +91,17 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
                 acpi_processor_ppc_has_changed(pr, 1);
                 if (saved == pr->performance_platform_limit)
                         break;
-                acpi_bus_generate_proc_event(device, event,
-                                        pr->performance_platform_limit);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   dev_name(&device->dev), event,
                                                   pr->performance_platform_limit);
                 break;
         case ACPI_PROCESSOR_NOTIFY_POWER:
                 acpi_processor_cst_has_changed(pr);
-                acpi_bus_generate_proc_event(device, event, 0);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   dev_name(&device->dev), event, 0);
                 break;
         case ACPI_PROCESSOR_NOTIFY_THROTTLING:
                 acpi_processor_tstate_has_changed(pr);
-                acpi_bus_generate_proc_event(device, event, 0);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   dev_name(&device->dev), event, 0);
                 break;
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index b6241eeb1132..aef7e1cd1e5d 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -873,14 +873,9 @@ static void acpi_sbs_callback(void *context)
         u8 saved_charger_state = sbs->charger_present;
         u8 saved_battery_state;
         acpi_ac_get_present(sbs);
-        if (sbs->charger_present != saved_charger_state) {
-#ifdef CONFIG_ACPI_PROC_EVENT
-                acpi_bus_generate_proc_event4(ACPI_AC_CLASS, ACPI_AC_DIR_NAME,
-                                              ACPI_SBS_NOTIFY_STATUS,
-                                              sbs->charger_present);
-#endif
+        if (sbs->charger_present != saved_charger_state)
                 kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
-        }
+
         if (sbs->manager_present) {
                 for (id = 0; id < MAX_SBS_BAT; ++id) {
                         if (!(sbs->batteries_supported & (1 << id)))
@@ -890,12 +885,6 @@ static void acpi_sbs_callback(void *context)
                         acpi_battery_read(bat);
                         if (saved_battery_state == bat->present)
                                 continue;
-#ifdef CONFIG_ACPI_PROC_EVENT
-                        acpi_bus_generate_proc_event4(ACPI_BATTERY_CLASS,
-                                                      bat->name,
-                                                      ACPI_SBS_NOTIFY_STATUS,
-                                                      bat->present);
-#endif
                         kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
                 }
         }
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index a8a55d4143f2..e76365136ba3 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -970,6 +970,28 @@ struct bus_type acpi_bus_type = {
         .uevent         = acpi_device_uevent,
 };
 
+static void acpi_bus_data_handler(acpi_handle handle, void *context)
+{
+        /* Intentionally empty. */
+}
+
+int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device)
+{
+        acpi_status status;
+
+        if (!device)
+                return -EINVAL;
+
+        status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device);
+        if (ACPI_FAILURE(status) || !*device) {
+                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n",
+                                  handle));
+                return -ENODEV;
+        }
+        return 0;
+}
+EXPORT_SYMBOL_GPL(acpi_bus_get_device);
+
 int acpi_device_add(struct acpi_device *device,
                     void (*release)(struct device *))
 {
@@ -1181,14 +1203,6 @@ acpi_bus_get_ejd(acpi_handle handle, acpi_handle *ejd)
 }
 EXPORT_SYMBOL_GPL(acpi_bus_get_ejd);
 
-void acpi_bus_data_handler(acpi_handle handle, void *context)
-{
-
-        /* TBD */
-
-        return;
-}
-
 static int acpi_bus_extract_wakeup_device_power_package(acpi_handle handle,
                                         struct acpi_device_wakeup *wakeup)
 {
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 1dec53decffa..14df30580e15 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -138,7 +138,7 @@ static int __init init_nvs_nosave(const struct dmi_system_id *d)
         return 0;
 }
 
-static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
+static struct dmi_system_id acpisleep_dmi_table[] __initdata = {
         {
         .callback = init_old_suspend_ordering,
         .ident = "Abit KN9 (nForce4 variant)",
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 94523c79dc5f..9063239e0b13 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -50,11 +50,6 @@
 
 #define ACPI_THERMAL_CLASS              "thermal_zone"
 #define ACPI_THERMAL_DEVICE_NAME        "Thermal Zone"
-#define ACPI_THERMAL_FILE_STATE         "state"
-#define ACPI_THERMAL_FILE_TEMPERATURE   "temperature"
-#define ACPI_THERMAL_FILE_TRIP_POINTS   "trip_points"
-#define ACPI_THERMAL_FILE_COOLING_MODE  "cooling_mode"
-#define ACPI_THERMAL_FILE_POLLING_FREQ  "polling_frequency"
 #define ACPI_THERMAL_NOTIFY_TEMPERATURE 0x80
 #define ACPI_THERMAL_NOTIFY_THRESHOLDS  0x81
 #define ACPI_THERMAL_NOTIFY_DEVICES     0x82
@@ -190,7 +185,6 @@ struct acpi_thermal {
         struct thermal_zone_device *thermal_zone;
         int tz_enabled;
         int kelvin_offset;
-        struct mutex lock;
 };
 
 /* --------------------------------------------------------------------------
@@ -759,7 +753,6 @@ static int thermal_notify(struct thermal_zone_device *thermal, int trip,
         else
                 return 0;
 
-        acpi_bus_generate_proc_event(tz->device, type, 1);
         acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
                                         dev_name(&tz->device->dev), type, 1);
 
@@ -840,12 +833,13 @@ static int acpi_thermal_cooling_device_cb(struct thermal_zone_device *thermal,
                 if (ACPI_SUCCESS(status) && (dev == device)) {
                         if (bind)
                                 result = thermal_zone_bind_cooling_device
-                                                (thermal, -1, cdev,
-                                                 THERMAL_NO_LIMIT,
+                                                (thermal, THERMAL_TRIPS_NONE,
+                                                 cdev, THERMAL_NO_LIMIT,
                                                  THERMAL_NO_LIMIT);
                         else
                                 result = thermal_zone_unbind_cooling_device
-                                                (thermal, -1, cdev);
+                                                (thermal, THERMAL_TRIPS_NONE,
+                                                 cdev);
                         if (result)
                                 goto failed;
                 }
@@ -970,14 +964,12 @@ static void acpi_thermal_notify(struct acpi_device *device, u32 event)
         case ACPI_THERMAL_NOTIFY_THRESHOLDS:
                 acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_THRESHOLDS);
                 acpi_thermal_check(tz);
-                acpi_bus_generate_proc_event(device, event, 0);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   dev_name(&device->dev), event, 0);
                 break;
         case ACPI_THERMAL_NOTIFY_DEVICES:
                 acpi_thermal_trips_update(tz, ACPI_TRIPS_REFRESH_DEVICES);
                 acpi_thermal_check(tz);
-                acpi_bus_generate_proc_event(device, event, 0);
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   dev_name(&device->dev), event, 0);
                 break;
@@ -1091,8 +1083,6 @@ static int acpi_thermal_add(struct acpi_device *device)
         strcpy(acpi_device_name(device), ACPI_THERMAL_DEVICE_NAME);
         strcpy(acpi_device_class(device), ACPI_THERMAL_CLASS);
         device->driver_data = tz;
-        mutex_init(&tz->lock);
-
 
         result = acpi_thermal_get_info(tz);
         if (result)
@@ -1125,7 +1115,6 @@ static int acpi_thermal_remove(struct acpi_device *device)
         tz = acpi_driver_data(device);
 
         acpi_thermal_unregister_thermal_zone(tz);
-        mutex_destroy(&tz->lock);
         kfree(tz);
         return 0;
 }
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 725143016f3b..c86fc0c70ff6 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1550,7 +1550,6 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
         switch (event) {
         case ACPI_VIDEO_NOTIFY_SWITCH:  /* User requested a switch,
                                          * most likely via hotkey. */
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_SWITCHVIDEOMODE;
                 break;
 
@@ -1558,20 +1557,16 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
                                          * connector. */
                 acpi_video_device_enumerate(video);
                 acpi_video_device_rebind(video);
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_SWITCHVIDEOMODE;
                 break;
 
         case ACPI_VIDEO_NOTIFY_CYCLE:   /* Cycle Display output hotkey pressed. */
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_SWITCHVIDEOMODE;
                 break;
         case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:     /* Next Display output hotkey pressed. */
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_VIDEO_NEXT;
                 break;
         case ACPI_VIDEO_NOTIFY_PREV_OUTPUT:     /* previous Display output hotkey pressed. */
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_VIDEO_PREV;
                 break;
 
@@ -1614,31 +1609,26 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
         case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS:        /* Cycle brightness */
                 if (brightness_switch_enabled)
                         acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESS_CYCLE;
                 break;
         case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS:  /* Increase brightness */
                 if (brightness_switch_enabled)
                         acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESSUP;
                 break;
         case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS:  /* Decrease brightness */
                 if (brightness_switch_enabled)
                         acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESSDOWN;
                 break;
         case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightness */
                 if (brightness_switch_enabled)
                         acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESS_ZERO;
                 break;
         case ACPI_VIDEO_NOTIFY_DISPLAY_OFF:     /* display device off */
                 if (brightness_switch_enabled)
                         acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_DISPLAY_OFF;
                 break;
         default:
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index bf2349dbbf7f..7cc1fe2241fd 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -876,11 +876,6 @@ found:
         if (useinput)
                 sonypi_report_input_event(event);
 
-#ifdef CONFIG_ACPI
-        if (sonypi_acpi_device)
-                acpi_bus_generate_proc_event(sonypi_acpi_device, 1, event);
-#endif
-
         kfifo_in_locked(&sonypi_device.fifo, (unsigned char *)&event,
                         sizeof(event), &sonypi_device.fifo_lock);
         kill_fasync(&sonypi_device.fifo_async, SIGIO, POLL_IN);
diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c
index 8d45f6d69540..2f5786c8522c 100644
--- a/drivers/pci/hotplug/acpiphp_ibm.c
+++ b/drivers/pci/hotplug/acpiphp_ibm.c
@@ -270,7 +270,6 @@ static void ibm_handle_events(acpi_handle handle, u32 event, void *context)
 
         if (subevent == 0x80) {
                 dbg("%s: generationg bus event\n", __func__);
-                acpi_bus_generate_proc_event(note->device, note->event, detail);
                 acpi_bus_generate_netlink_event(note->device->pnp.device_class,
                                                   dev_name(&note->device->dev),
                                                   note->event, detail);
diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c
index 8e268da6fdbd..0e9c169b42f8 100644
--- a/drivers/platform/x86/asus-laptop.c
+++ b/drivers/platform/x86/asus-laptop.c
@@ -1543,7 +1543,6 @@ static void asus_acpi_notify(struct acpi_device *device, u32 event)
 
         /* TODO Find a better way to handle events count. */
         count = asus->event_count[event % 128]++;
-        acpi_bus_generate_proc_event(asus->device, event, count);
         acpi_bus_generate_netlink_event(asus->device->pnp.device_class,
                                         dev_name(&asus->device->dev), event,
                                         count);
diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c
index 5d26e70bed6c..a6afd4108beb 100644
--- a/drivers/platform/x86/eeepc-laptop.c
+++ b/drivers/platform/x86/eeepc-laptop.c
@@ -1269,7 +1269,6 @@ static void eeepc_acpi_notify(struct acpi_device *device, u32 event)
         if (event > ACPI_MAX_SYS_NOTIFY)
                 return;
         count = eeepc->event_count[event % 128]++;
-        acpi_bus_generate_proc_event(device, event, count);
         acpi_bus_generate_netlink_event(device->pnp.device_class,
                                         dev_name(&device->dev), event,
                                         count);
diff --git a/drivers/platform/x86/fujitsu-laptop.c b/drivers/platform/x86/fujitsu-laptop.c
index 1c9386e7c58c..52b8a97efde1 100644
--- a/drivers/platform/x86/fujitsu-laptop.c
+++ b/drivers/platform/x86/fujitsu-laptop.c
@@ -773,8 +773,6 @@ static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
                                 else
                                         set_lcd_level(newb);
                         }
-                        acpi_bus_generate_proc_event(fujitsu->dev,
-                                ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS, 0);
                         keycode = KEY_BRIGHTNESSUP;
                 } else if (oldb > newb) {
                         if (disable_brightness_adjust != 1) {
@@ -783,8 +781,6 @@ static void acpi_fujitsu_notify(struct acpi_device *device, u32 event)
                                 else
                                         set_lcd_level(newb);
                         }
-                        acpi_bus_generate_proc_event(fujitsu->dev,
-                                ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS, 0);
                         keycode = KEY_BRIGHTNESSDOWN;
                 }
                 break;
diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c
index 4add9a31bf60..984253da365d 100644
--- a/drivers/platform/x86/panasonic-laptop.c
+++ b/drivers/platform/x86/panasonic-laptop.c
@@ -464,9 +464,6 @@ static void acpi_pcc_generate_keyinput(struct pcc_acpi *pcc)
                                  "error getting hotkey status\n"));
                 return;
         }
-
-        acpi_bus_generate_proc_event(pcc->device, HKEY_NOTIFY, result);
-
         if (!sparse_keymap_report_event(hotk_input_dev,
                                         result & 0xf, result & 0x80, false))
                 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 3a1b6bf326a8..d3fd52036fd6 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -1275,9 +1275,6 @@ static void sony_nc_notify(struct acpi_device *device, u32 event)
                 ev_type = HOTKEY;
                 sony_laptop_report_input_event(real_ev);
         }
-
-        acpi_bus_generate_proc_event(sony_nc_acpi_device, ev_type, real_ev);
-
         acpi_bus_generate_netlink_event(sony_nc_acpi_device->pnp.device_class,
                         dev_name(&sony_nc_acpi_device->dev), ev_type, real_ev);
 }
@@ -4246,7 +4243,6 @@ static irqreturn_t sony_pic_irq(int irq, void *dev_id)
 
 found:
         sony_laptop_report_input_event(device_event);
-        acpi_bus_generate_proc_event(dev->acpi_dev, 1, device_event);
         sonypi_compat_report_event(device_event);
         return IRQ_HANDLED;
 }
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 54d31c0a9840..be67e5e28d18 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -2022,8 +2022,6 @@ static u32 hotkey_driver_mask;		/* events needed by the driver */
 static u32 hotkey_user_mask;            /* events visible to userspace */
 static u32 hotkey_acpi_mask;            /* events enabled in firmware */
 
-static unsigned int hotkey_report_mode;
-
 static u16 *hotkey_keycode_map;
 
 static struct attribute_set *hotkey_dev_attributes;
@@ -2282,10 +2280,6 @@ static struct tp_acpi_drv_struct ibm_hotkey_acpidriver;
 static void tpacpi_hotkey_send_key(unsigned int scancode)
 {
         tpacpi_input_send_key_masked(scancode);
-        if (hotkey_report_mode < 2) {
-                acpi_bus_generate_proc_event(ibm_hotkey_acpidriver.device,
-                                0x80, TP_HKEY_EV_HOTKEY_BASE + scancode);
-        }
 }
 
 static void hotkey_read_nvram(struct tp_nvram_state *n, const u32 m)
@@ -2882,18 +2876,6 @@ static void hotkey_tablet_mode_notify_change(void)
                              "hotkey_tablet_mode");
 }
 
-/* sysfs hotkey report_mode -------------------------------------------- */
-static ssize_t hotkey_report_mode_show(struct device *dev,
-                           struct device_attribute *attr,
-                           char *buf)
-{
-        return snprintf(buf, PAGE_SIZE, "%d\n",
-                (hotkey_report_mode != 0) ? hotkey_report_mode : 1);
-}
-
-static struct device_attribute dev_attr_hotkey_report_mode =
-        __ATTR(hotkey_report_mode, S_IRUGO, hotkey_report_mode_show, NULL);
-
 /* sysfs wakeup reason (pollable) -------------------------------------- */
 static ssize_t hotkey_wakeup_reason_show(struct device *dev,
                            struct device_attribute *attr,
@@ -2935,7 +2917,6 @@ static struct attribute *hotkey_attributes[] __initdata = {
         &dev_attr_hotkey_enable.attr,
         &dev_attr_hotkey_bios_enabled.attr,
         &dev_attr_hotkey_bios_mask.attr,
-        &dev_attr_hotkey_report_mode.attr,
         &dev_attr_hotkey_wakeup_reason.attr,
         &dev_attr_hotkey_wakeup_hotunplug_complete.attr,
         &dev_attr_hotkey_mask.attr,
@@ -3439,11 +3420,6 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
                 "initial masks: user=0x%08x, fw=0x%08x, poll=0x%08x\n",
                 hotkey_user_mask, hotkey_acpi_mask, hotkey_source_mask);
 
-        dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
-                        "legacy ibm/hotkey event reporting over procfs %s\n",
-                        (hotkey_report_mode < 2) ?
-                                "enabled" : "disabled");
-
         tpacpi_inputdev->open = &hotkey_inputdev_open;
         tpacpi_inputdev->close = &hotkey_inputdev_close;
 
@@ -3737,13 +3713,6 @@ static void hotkey_notify(struct ibm_struct *ibm, u32 event)
                                   "event happened to %s\n", TPACPI_MAIL);
                 }
 
-                /* Legacy events */
-                if (!ignore_acpi_ev &&
-                    (send_acpi_ev || hotkey_report_mode < 2)) {
-                        acpi_bus_generate_proc_event(ibm->acpi->device,
-                                                     event, hkey);
-                }
-
                 /* netlink events */
                 if (!ignore_acpi_ev && send_acpi_ev) {
                         acpi_bus_generate_netlink_event(
@@ -8840,11 +8809,6 @@ module_param(brightness_enable, uint, 0444);
 MODULE_PARM_DESC(brightness_enable,
                  "Enables backlight control when 1, disables when 0");
 
-module_param(hotkey_report_mode, uint, 0444);
-MODULE_PARM_DESC(hotkey_report_mode,
-                 "used for backwards compatibility with userspace, "
-                 "see documentation");
-
 #ifdef CONFIG_THINKPAD_ACPI_ALSA_SUPPORT
 module_param_named(volume_mode, volume_mode, uint, 0444);
 MODULE_PARM_DESC(volume_mode,
@@ -8975,10 +8939,6 @@ static int __init thinkpad_acpi_module_init(void)
 
         tpacpi_lifecycle = TPACPI_LIFE_INIT;
 
-        /* Parameter checking */
-        if (hotkey_report_mode > 2)
-                return -EINVAL;
-
         /* Driver-level probe */
 
         ret = get_thinkpad_model_data(&thinkpad_id);