11 files changed, 83 insertions, 33 deletions

diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index f1372de4ce79..574259476fbf 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -68,6 +68,20 @@ config ACPI_PROCFS
 
           Say N to delete /proc/acpi/ files that have moved to /sys/
 
+config ACPI_PROC_EVENT
+        bool "Deprecated /proc/acpi/event support"
+        depends on PROC_FS
+        ---help---
+          A user-space daemon, acpi, typically read /proc/acpi/event
+          and handled all ACPI sub-system generated events.
+
+          These events are now delivered to user-space via
+          either the input layer, or as netlink events.
+
+          This build option enables the old code for for legacy
+          user-space implementation.  After some time, this will
+          be moved under CONFIG_ACPI_PROCFS, and then deleted.
+
 config ACPI_AC
         tristate "AC Adapter"
         depends on X86
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index d8b35093527a..26d70702b313 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -204,7 +204,10 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
         case ACPI_NOTIFY_BUS_CHECK:
         case ACPI_NOTIFY_DEVICE_CHECK:
                 acpi_ac_get_state(ac);
-                acpi_bus_generate_event(device, event, (u32) ac->state);
+                acpi_bus_generate_proc_event(device, event, (u32) ac->state);
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event,
+                                                  (u32) ac->state);
                 break;
         default:
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index 86fd142f4bf3..d915fec9bf63 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -1069,7 +1069,7 @@ static void asus_hotk_notify(acpi_handle handle, u32 event, void *data)
                 hotk->brightness = (event & ~((u32) BR_DOWN));
         }
 
-        acpi_bus_generate_event(hotk->device, event,
+        acpi_bus_generate_proc_event(hotk->device, event,
                                 hotk->event_count[event % 128]++);
 
         return;
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 81651032791b..9b2c0f74f869 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -872,8 +872,11 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
         case ACPI_NOTIFY_DEVICE_CHECK:
                 device = battery->device;
                 acpi_battery_notify_update(battery);
-                acpi_bus_generate_event(device, event,
+                acpi_bus_generate_proc_event(device, event,
                                         acpi_battery_present(battery));
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event,
+                                                  acpi_battery_present(battery));
                 break;
         default:
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 6b2658c96242..9ba778a2b484 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -276,6 +276,7 @@ EXPORT_SYMBOL(acpi_bus_set_power);
                                 Event Management
    -------------------------------------------------------------------------- */
 
+#ifdef CONFIG_ACPI_PROC_EVENT
 static DEFINE_SPINLOCK(acpi_bus_event_lock);
 
 LIST_HEAD(acpi_bus_event_list);
@@ -283,7 +284,7 @@ DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
 
 extern int event_is_open;
 
-int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
 {
         struct acpi_bus_event *event = NULL;
         unsigned long flags = 0;
@@ -292,10 +293,6 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
         if (!device)
                 return -EINVAL;
 
-        if (acpi_bus_generate_genetlink_event(device, type, data))
-                printk(KERN_WARNING PREFIX
-                        "Failed to generate an ACPI event via genetlink!\n");
-
         /* drop event on the floor if no one's listening */
         if (!event_is_open)
                 return 0;
@@ -318,7 +315,7 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
         return 0;
 }
 
-EXPORT_SYMBOL(acpi_bus_generate_event);
+EXPORT_SYMBOL(acpi_bus_generate_proc_event);
 
 int acpi_bus_receive_event(struct acpi_bus_event *event)
 {
@@ -364,6 +361,7 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
 }
 
 EXPORT_SYMBOL(acpi_bus_receive_event);
+#endif  /* CONFIG_ACPI_PROC_EVENT */
 
 /* --------------------------------------------------------------------------
                              Notification Handling
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 540581338ef5..2e79a3395ecf 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -284,7 +284,7 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
                 }
                 input_sync(input);
 
-                acpi_bus_generate_event(button->device, event,
+                acpi_bus_generate_proc_event(button->device, event,
                                         ++button->pushed);
                 break;
         default:
diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c
index 95637a4ff782..a2b9304596ce 100644
--- a/drivers/acpi/event.c
+++ b/drivers/acpi/event.c
@@ -17,6 +17,7 @@
 #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;
@@ -106,6 +107,7 @@ static const struct file_operations acpi_system_event_ops = {
         .release = acpi_system_close_event,
         .poll = acpi_system_poll_event,
 };
+#endif  /* CONFIG_ACPI_PROC_EVENT */
 
 #ifdef CONFIG_NET
 static unsigned int acpi_event_seqnum;
@@ -147,7 +149,8 @@ static struct genl_multicast_group acpi_event_mcgrp = {
         .name = ACPI_GENL_MCAST_GROUP_NAME,
 };
 
-int acpi_bus_generate_genetlink_event(struct acpi_device *device,
+int acpi_bus_generate_netlink_event(const char *device_class,
+                                      const char *bus_id,
                                       u8 type, int data)
 {
         struct sk_buff *skb;
@@ -191,8 +194,8 @@ int acpi_bus_generate_genetlink_event(struct acpi_device *device,
 
         memset(event, 0, sizeof(struct acpi_genl_event));
 
-        strcpy(event->device_class, device->pnp.device_class);
-        strcpy(event->bus_id, device->dev.bus_id);
+        strcpy(event->device_class, device_class);
+        strcpy(event->bus_id, bus_id);
         event->type = type;
         event->data = data;
 
@@ -211,6 +214,8 @@ int acpi_bus_generate_genetlink_event(struct acpi_device *device,
         return 0;
 }
 
+EXPORT_SYMBOL(acpi_bus_generate_netlink_event);
+
 static int acpi_event_genetlink_init(void)
 {
         int result;
@@ -228,12 +233,15 @@ static int acpi_event_genetlink_init(void)
 }
 
 #else
-int acpi_bus_generate_genetlink_event(struct acpi_device *device, u8 type,
-                                      int data)
+int acpi_bus_generate_netlink_event(const char *device_class,
+                                      const char *bus_id,
+                                      u8 type, int data)
 {
         return 0;
 }
 
+EXPORT_SYMBOL(acpi_generate_netlink_event);
+
 static int acpi_event_genetlink_init(void)
 {
         return -ENODEV;
@@ -242,7 +250,9 @@ 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)
@@ -254,12 +264,14 @@ static int __init acpi_event_init(void)
                 printk(KERN_WARNING PREFIX
                        "Failed to create genetlink family for ACPI event\n");
 
+#ifdef CONFIG_ACPI_PROC_EVENT
         /* 'event' [R] */
         entry = create_proc_entry("event", S_IRUSR, acpi_root_dir);
         if (entry)
                 entry->proc_fops = &acpi_system_event_ops;
         else
                 return -ENODEV;
+#endif
 
         return 0;
 }
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 498422343f38..e944aaee4e06 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -698,16 +698,23 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
         switch (event) {
         case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
                 acpi_processor_ppc_has_changed(pr);
-                acpi_bus_generate_event(device, event,
+                acpi_bus_generate_proc_event(device, event,
                                         pr->performance_platform_limit);
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event,
+                                                  pr->performance_platform_limit);
                 break;
         case ACPI_PROCESSOR_NOTIFY_POWER:
                 acpi_processor_cst_has_changed(pr);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event, 0);
                 break;
         case ACPI_PROCESSOR_NOTIFY_THROTTLING:
                 acpi_processor_tstate_has_changed(pr);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event, 0);
         default:
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                   "Unsupported event [0x%x]\n", event));
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 82c3a550016d..a578986e3214 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -440,11 +440,12 @@ static int acpi_sbs_generate_event(struct acpi_device *device,
         strcpy(acpi_device_bid(device), bid);
         strcpy(acpi_device_class(device), class);
 
-        result = acpi_bus_generate_event(device, event, state);
+        result = acpi_bus_generate_proc_event(device, event, state);
 
         strcpy(acpi_device_bid(device), bid_saved);
         strcpy(acpi_device_class(device), class_saved);
 
+        acpi_bus_generate_netlink_event(class, bid, event, state);
         return result;
 }
 
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 7e8f48b7f9af..bc6d5866ef98 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -503,8 +503,12 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
         printk(KERN_EMERG
                "Critical temperature reached (%ld C), shutting down.\n",
                KELVIN_TO_CELSIUS(tz->temperature));
-        acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
+        acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
                                 tz->trips.critical.flags.enabled);
+        acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
+                                          tz->device->dev.bus_id,
+                                          ACPI_THERMAL_NOTIFY_CRITICAL,
+                                          tz->trips.critical.flags.enabled);
 
         orderly_poweroff(true);
 
@@ -522,8 +526,12 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
         } else if (tz->trips.hot.flags.enabled)
                 tz->trips.hot.flags.enabled = 0;
 
-        acpi_bus_generate_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
+        acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_HOT,
                                 tz->trips.hot.flags.enabled);
+        acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
+                                          tz->device->dev.bus_id,
+                                          ACPI_THERMAL_NOTIFY_HOT,
+                                          tz->trips.hot.flags.enabled);
 
         /* TBD: Call user-mode "sleep(S4)" function */
 
@@ -1167,12 +1175,16 @@ static void acpi_thermal_notify(acpi_handle handle, u32 event, void *data)
         case ACPI_THERMAL_NOTIFY_THRESHOLDS:
                 acpi_thermal_get_trip_points(tz);
                 acpi_thermal_check(tz);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event, 0);
                 break;
         case ACPI_THERMAL_NOTIFY_DEVICES:
                 if (tz->flags.devices)
                         acpi_thermal_get_devices(tz);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
+                acpi_bus_generate_netlink_event(device->pnp.device_class,
+                                                  device->dev.bus_id, event, 0);
                 break;
         default:
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index d727d2c715df..6659bdd2a454 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -1781,7 +1781,7 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
         switch (event) {
         case ACPI_VIDEO_NOTIFY_SWITCH:  /* User requested a switch,
                                          * most likely via hotkey. */
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_SWITCHVIDEOMODE;
                 break;
 
@@ -1790,23 +1790,23 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
                 acpi_video_device_enumerate(video);
                 acpi_video_device_rebind(video);
                 acpi_video_switch_output(video, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_SWITCHVIDEOMODE;
                 break;
 
         case ACPI_VIDEO_NOTIFY_CYCLE:   /* Cycle Display output hotkey pressed. */
                 acpi_video_switch_output(video, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_SWITCHVIDEOMODE;
                 break;
         case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:     /* Next Display output hotkey pressed. */
                 acpi_video_switch_output(video, event);
-                acpi_bus_generate_event(device, event, 0);
+                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_video_switch_output(video, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_VIDEO_PREV;
                 break;
 
@@ -1843,27 +1843,27 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
         switch (event) {
         case ACPI_VIDEO_NOTIFY_CYCLE_BRIGHTNESS:        /* Cycle brightness */
                 acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESS_CYCLE;
                 break;
         case ACPI_VIDEO_NOTIFY_INC_BRIGHTNESS:  /* Increase brightness */
                 acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESSUP;
                 break;
         case ACPI_VIDEO_NOTIFY_DEC_BRIGHTNESS:  /* Decrease brightness */
                 acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESSDOWN;
                 break;
         case ACPI_VIDEO_NOTIFY_ZERO_BRIGHTNESS: /* zero brightnesss */
                 acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_BRIGHTNESS_ZERO;
                 break;
         case ACPI_VIDEO_NOTIFY_DISPLAY_OFF:     /* display device off */
                 acpi_video_switch_brightness(video_device, event);
-                acpi_bus_generate_event(device, event, 0);
+                acpi_bus_generate_proc_event(device, event, 0);
                 keycode = KEY_DISPLAY_OFF;
                 break;
         default: