Merge branches 'battery', 'bugzilla-14667', 'bugzilla-15096', 'bugzilla-15480', 'bugzilla-15521', 'bugzilla-15605', 'gpe-reference-counters', 'misc', 'pxm-fix' and 'video-random-key' into release

drivers/acpi/ac.c

@@ -25,6 +25,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #ifdef CONFIG_ACPI_PROCFS_POWER

drivers/acpi/acpi_memhotplug.c

@@ -30,6 +30,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/memory_hotplug.h>
+#include <linux/slab.h>
 #include <acpi/acpi_drivers.h>
 
 #define ACPI_MEMORY_DEVICE_CLASS		"memory"

drivers/acpi/acpi_pad.c

@@ -27,6 +27,7 @@
 #include <linux/freezer.h>
 #include <linux/cpu.h>
 #include <linux/clockchips.h>
+#include <linux/slab.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 

drivers/acpi/acpica/evgpe.c

@@ -117,19 +117,14 @@ acpi_status acpi_ev_enable_gpe(struct acpi_gpe_event_info *gpe_event_info)
 	if (ACPI_FAILURE(status))
 		return_ACPI_STATUS(status);
 
-	/* Mark wake-enabled or HW enable, or both */
+	/* Clear the GPE (of stale events), then enable it */
+	status = acpi_hw_clear_gpe(gpe_event_info);
+	if (ACPI_FAILURE(status))
+		return_ACPI_STATUS(status);
 
-	if (gpe_event_info->runtime_count) {
-		/* Clear the GPE (of stale events), then enable it */
-		status = acpi_hw_clear_gpe(gpe_event_info);
-		if (ACPI_FAILURE(status))
-			return_ACPI_STATUS(status);
-
-		/* Enable the requested runtime GPE */
-		status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
-	}
-
-	return_ACPI_STATUS(AE_OK);
+	/* Enable the requested GPE */
+	status = acpi_hw_write_gpe_enable_reg(gpe_event_info);
+	return_ACPI_STATUS(status);
 }
 
 /*******************************************************************************

drivers/acpi/acpica/exprep.c

@@ -468,6 +468,18 @@ acpi_status acpi_ex_prep_field_value(struct acpi_create_field_info *info)
 
 		acpi_ut_add_reference(obj_desc->field.region_obj);
 
+		/* allow full data read from EC address space */
+		if (obj_desc->field.region_obj->region.space_id ==
+			ACPI_ADR_SPACE_EC) {
+			if (obj_desc->common_field.bit_length > 8)
+				obj_desc->common_field.access_bit_width =
+				ACPI_ROUND_UP(obj_desc->common_field.
+							bit_length, 8);
+				obj_desc->common_field.access_byte_width =
+				ACPI_DIV_8(obj_desc->common_field.
+							access_bit_width);
+		}
+
 		ACPI_DEBUG_PRINT((ACPI_DB_BFIELD,
 				  "RegionField: BitOff %X, Off %X, Gran %X, Region %p\n",
 				  obj_desc->field.start_field_bit_offset,

drivers/acpi/battery.c

@@ -32,6 +32,7 @@
 #include <linux/jiffies.h>
 #include <linux/async.h>
 #include <linux/dmi.h>
+#include <linux/slab.h>
 
 #ifdef CONFIG_ACPI_PROCFS_POWER
 #include <linux/proc_fs.h>

drivers/acpi/bus.c

@@ -32,6 +32,7 @@
 #include <linux/device.h>
 #include <linux/proc_fs.h>
 #include <linux/acpi.h>
+#include <linux/slab.h>
 #ifdef CONFIG_X86
 #include <asm/mpspec.h>
 #endif

drivers/acpi/button.c

@@ -30,6 +30,7 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/input.h>
+#include <linux/slab.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 

drivers/acpi/container.c

@@ -29,6 +29,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/acpi.h>
 #include <acpi/acpi_bus.h>

drivers/acpi/debug.c

@@ -9,6 +9,7 @@
 #include <linux/kernel.h>
 #include <linux/moduleparam.h>
 #include <linux/debugfs.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <acpi/acpi_drivers.h>
 

drivers/acpi/dock.c

@@ -24,6 +24,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/notifier.h>
@@ -1025,13 +1026,10 @@ static int dock_remove(struct dock_station *ds)
 static acpi_status
 find_dock(acpi_handle handle, u32 lvl, void *context, void **rv)
 {
-	acpi_status status = AE_OK;
-
 	if (is_dock(handle))
-		if (dock_add(handle) >= 0)
-			status = AE_CTRL_TERMINATE;
+		dock_add(handle);
 
-	return status;
+	return AE_OK;
 }
 
 static acpi_status

drivers/acpi/ec.c

@@ -39,6 +39,7 @@
 #include <linux/interrupt.h>
 #include <linux/list.h>
 #include <linux/spinlock.h>
+#include <linux/slab.h>
 #include <asm/io.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
@@ -628,12 +629,12 @@ static u32 acpi_ec_gpe_handler(void *data)
 
 static acpi_status
 acpi_ec_space_handler(u32 function, acpi_physical_address address,
-		      u32 bits, u64 *value,
+		      u32 bits, u64 *value64,
 		      void *handler_context, void *region_context)
 {
 	struct acpi_ec *ec = handler_context;
-	int result = 0, i;
-	u8 temp = 0;
+	int result = 0, i, bytes = bits / 8;
+	u8 *value = (u8 *)value64;
 
 	if ((address > 0xFF) || !value || !handler_context)
 		return AE_BAD_PARAMETER;
@@ -641,32 +642,15 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
 	if (function != ACPI_READ && function != ACPI_WRITE)
 		return AE_BAD_PARAMETER;
 
-	if (bits != 8 && acpi_strict)
-		return AE_BAD_PARAMETER;
-
-	if (EC_FLAGS_MSI)
+	if (EC_FLAGS_MSI || bits > 8)
 		acpi_ec_burst_enable(ec);
 
-	if (function == ACPI_READ) {
-		result = acpi_ec_read(ec, address, &temp);
-		*value = temp;
-	} else {
-		temp = 0xff & (*value);
-		result = acpi_ec_write(ec, address, temp);
-	}
+	for (i = 0; i < bytes; ++i, ++address, ++value)
+		result = (function == ACPI_READ) ?
+			acpi_ec_read(ec, address, value) :
+			acpi_ec_write(ec, address, *value);
 
-	for (i = 8; unlikely(bits - i > 0); i += 8) {
-		++address;
-		if (function == ACPI_READ) {
-			result = acpi_ec_read(ec, address, &temp);
-			(*value) |= ((u64)temp) << i;
-		} else {
-			temp = 0xff & ((*value) >> i);
-			result = acpi_ec_write(ec, address, temp);
-		}
-	}
-
-	if (EC_FLAGS_MSI)
+	if (EC_FLAGS_MSI || bits > 8)
 		acpi_ec_burst_disable(ec);
 
 	switch (result) {

drivers/acpi/event.c

@@ -10,6 +10,7 @@
 #include <linux/proc_fs.h>
 #include <linux/init.h>
 #include <linux/poll.h>
+#include <linux/gfp.h>
 #include <acpi/acpi_drivers.h>
 #include <net/netlink.h>
 #include <net/genetlink.h>

drivers/acpi/glue.c

@@ -9,6 +9,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/device.h>
+#include <linux/slab.h>
 #include <linux/rwsem.h>
 #include <linux/acpi.h>
 

drivers/acpi/numa.c

@@ -61,8 +61,10 @@ int node_to_pxm(int node)
 
 void __acpi_map_pxm_to_node(int pxm, int node)
 {
-	pxm_to_node_map[pxm] = node;
-	node_to_pxm_map[node] = pxm;
+	if (pxm_to_node_map[pxm] == NUMA_NO_NODE || node < pxm_to_node_map[pxm])
+		pxm_to_node_map[pxm] = node;
+	if (node_to_pxm_map[node] == PXM_INVAL || pxm < node_to_pxm_map[node])
+		node_to_pxm_map[node] = pxm;
 }
 
 int acpi_map_pxm_to_node(int pxm)

drivers/acpi/osl.c

@@ -758,7 +758,14 @@ static acpi_status __acpi_os_execute(acpi_execute_type type,
 	queue = hp ? kacpi_hotplug_wq :
 		(type == OSL_NOTIFY_HANDLER ? kacpi_notify_wq : kacpid_wq);
 	dpc->wait = hp ? 1 : 0;
-	INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+
+	if (queue == kacpi_hotplug_wq)
+		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+	else if (queue == kacpi_notify_wq)
+		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+	else
+		INIT_WORK(&dpc->work, acpi_os_execute_deferred);
+
 	ret = queue_work(queue, &dpc->work);
 
 	if (!ret) {
@@ -1151,16 +1158,10 @@ int acpi_check_resource_conflict(const struct resource *res)
 
 	if (clash) {
 		if (acpi_enforce_resources != ENFORCE_RESOURCES_NO) {
-			printk("%sACPI: %s resource %s [0x%llx-0x%llx]"
-			       " conflicts with ACPI region %s"
-			       " [0x%llx-0x%llx]\n",
-			       acpi_enforce_resources == ENFORCE_RESOURCES_LAX
-			       ? KERN_WARNING : KERN_ERR,
-			       ioport ? "I/O" : "Memory", res->name,
-			       (long long) res->start, (long long) res->end,
-			       res_list_elem->name,
-			       (long long) res_list_elem->start,
-			       (long long) res_list_elem->end);
+			printk(KERN_WARNING "ACPI: resource %s %pR"
+			       " conflicts with ACPI region %s %pR\n",
+			       res->name, res, res_list_elem->name,
+			       res_list_elem);
 			if (acpi_enforce_resources == ENFORCE_RESOURCES_LAX)
 				printk(KERN_NOTICE "ACPI: This conflict may"
 				       " cause random problems and system"

drivers/acpi/pci_irq.c

@@ -37,6 +37,7 @@
 #include <linux/pm.h>
 #include <linux/pci.h>
 #include <linux/acpi.h>
+#include <linux/slab.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 

drivers/acpi/pci_link.c

@@ -39,6 +39,7 @@
 #include <linux/pm.h>
 #include <linux/pci.h>
 #include <linux/mutex.h>
+#include <linux/slab.h>
 
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>

drivers/acpi/pci_root.c

@@ -34,6 +34,7 @@
 #include <linux/pci.h>
 #include <linux/pci-acpi.h>
 #include <linux/acpi.h>
+#include <linux/slab.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 

drivers/acpi/pci_slot.c

@@ -26,6 +26,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/pci.h>
 #include <linux/acpi.h>

drivers/acpi/power.c

@@ -39,6 +39,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <acpi/acpi_bus.h>

drivers/acpi/power_meter.c

@@ -25,6 +25,7 @@
 #include <linux/jiffies.h>
 #include <linux/mutex.h>
 #include <linux/dmi.h>
+#include <linux/slab.h>
 #include <linux/kdev_t.h>
 #include <linux/sched.h>
 #include <linux/time.h>

drivers/acpi/processor_core.c

@@ -8,6 +8,7 @@
  *	- Added _PDC for platforms with Intel CPUs
  */
 #include <linux/dmi.h>
+#include <linux/slab.h>
 
 #include <acpi/acpi_drivers.h>
 #include <acpi/processor.h>

drivers/acpi/processor_driver.c

@@ -45,6 +45,7 @@
 #include <linux/dmi.h>
 #include <linux/moduleparam.h>
 #include <linux/cpuidle.h>
+#include <linux/slab.h>
 
 #include <asm/io.h>
 #include <asm/system.h>

drivers/acpi/processor_idle.c

@@ -32,6 +32,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
+#include <linux/slab.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #include <linux/acpi.h>

drivers/acpi/processor_perflib.c

@@ -30,6 +30,7 @@
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/cpufreq.h>
+#include <linux/slab.h>
 
 #ifdef CONFIG_X86
 #include <asm/cpufeature.h>

drivers/acpi/processor_throttling.c

@@ -28,6 +28,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/sched.h>
 #include <linux/cpufreq.h>

drivers/acpi/sbs.c

@@ -25,6 +25,7 @@
  */
 
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
 #include <linux/kernel.h>

drivers/acpi/sbshc.c

@@ -11,6 +11,7 @@
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 #include <linux/wait.h>
+#include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include "sbshc.h"

drivers/acpi/scan.c

@@ -4,6 +4,7 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/kernel.h>
 #include <linux/acpi.h>
 #include <linux/signal.h>
@@ -1080,12 +1081,6 @@ static void acpi_device_set_id(struct acpi_device *device)
 		if (ACPI_IS_ROOT_DEVICE(device)) {
 			acpi_add_id(device, ACPI_SYSTEM_HID);
 			break;
-		} else if (ACPI_IS_ROOT_DEVICE(device->parent)) {
-			/* \_SB_, the only root-level namespace device */
-			acpi_add_id(device, ACPI_BUS_HID);
-			strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
-			strcpy(device->pnp.device_class, ACPI_BUS_CLASS);
-			break;
 		}
 
 		status = acpi_get_object_info(device->handle, &info);
@@ -1120,6 +1115,12 @@ static void acpi_device_set_id(struct acpi_device *device)
 			acpi_add_id(device, ACPI_DOCK_HID);
 		else if (!acpi_ibm_smbus_match(device))
 			acpi_add_id(device, ACPI_SMBUS_IBM_HID);
+		else if (!acpi_device_hid(device) &&
+			 ACPI_IS_ROOT_DEVICE(device->parent)) {
+			acpi_add_id(device, ACPI_BUS_HID); /* \_SB, LNXSYBUS */
+			strcpy(device->pnp.device_name, ACPI_BUS_DEVICE_NAME);
+			strcpy(device->pnp.device_class, ACPI_BUS_CLASS);
+		}
 
 		break;
 	case ACPI_BUS_TYPE_POWER:

drivers/acpi/system.c

@@ -25,6 +25,7 @@
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/string.h>
 #include <asm/uaccess.h>

drivers/acpi/thermal.c

@@ -35,6 +35,7 @@
 #include <linux/module.h>
 #include <linux/dmi.h>
 #include <linux/init.h>
+#include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/proc_fs.h>
 #include <linux/jiffies.h>

drivers/acpi/utils.c

@@ -25,6 +25,7 @@
 
 #include <linux/kernel.h>
 #include <linux/module.h>
+#include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/types.h>
 #include <acpi/acpi_bus.h>

drivers/acpi/video.c

@@ -39,10 +39,12 @@
 #include <linux/sort.h>
 #include <linux/pci.h>
 #include <linux/pci_ids.h>
+#include <linux/slab.h>
 #include <asm/uaccess.h>
 #include <linux/dmi.h>
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
+#include <linux/suspend.h>
 
 #define PREFIX "ACPI: "
 
@@ -88,7 +90,6 @@ module_param(allow_duplicates, bool, 0644);
 static int register_count = 0;
 static int acpi_video_bus_add(struct acpi_device *device);
 static int acpi_video_bus_remove(struct acpi_device *device, int type);
-static int acpi_video_resume(struct acpi_device *device);
 static void acpi_video_bus_notify(struct acpi_device *device, u32 event);
 
 static const struct acpi_device_id video_device_ids[] = {
@@ -104,7 +105,6 @@ static struct acpi_driver acpi_video_bus = {
 	.ops = {
 		.add = acpi_video_bus_add,
 		.remove = acpi_video_bus_remove,
-		.resume = acpi_video_resume,
 		.notify = acpi_video_bus_notify,
 		},
 };
@@ -159,6 +159,7 @@ struct acpi_video_bus {
 	struct proc_dir_entry *dir;
 	struct input_dev *input;
 	char phys[32];	/* for input device */
+	struct notifier_block pm_nb;
 };
 
 struct acpi_video_device_flags {
@@ -1020,6 +1021,13 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
 		if (IS_ERR(device->backlight))
 			return;
 
+		/*
+		 * Save current brightness level in case we have to restore it
+		 * before acpi_video_device_lcd_set_level() is called next time.
+		 */
+		device->backlight->props.brightness =
+				acpi_video_get_brightness(device->backlight);
+
 		result = sysfs_create_link(&device->backlight->dev.kobj,
 					   &device->dev->dev.kobj, "device");
 		if (result)
@@ -2122,7 +2130,7 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
 {
 	struct acpi_video_bus *video = acpi_driver_data(device);
 	struct input_dev *input;
-	int keycode;
+	int keycode = 0;
 
 	if (!video)
 		return;
@@ -2158,17 +2166,19 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event)
 		break;
 
 	default:
-		keycode = KEY_UNKNOWN;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
 		break;
 	}
 
 	acpi_notifier_call_chain(device, event, 0);
-	input_report_key(input, keycode, 1);
-	input_sync(input);
-	input_report_key(input, keycode, 0);
-	input_sync(input);
+
+	if (keycode) {
+		input_report_key(input, keycode, 1);
+		input_sync(input);
+		input_report_key(input, keycode, 0);
+		input_sync(input);
+	}
 
 	return;
 }
@@ -2179,7 +2189,7 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 	struct acpi_device *device = NULL;
 	struct acpi_video_bus *bus;
 	struct input_dev *input;
-	int keycode;
+	int keycode = 0;
 
 	if (!video_device)
 		return;
@@ -2220,39 +2230,48 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
 		keycode = KEY_DISPLAY_OFF;
 		break;
 	default:
-		keycode = KEY_UNKNOWN;
 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
 				  "Unsupported event [0x%x]\n", event));
 		break;
 	}
 
 	acpi_notifier_call_chain(device, event, 0);
-	input_report_key(input, keycode, 1);
-	input_sync(input);
-	input_report_key(input, keycode, 0);
-	input_sync(input);
+
+	if (keycode) {
+		input_report_key(input, keycode, 1);
+		input_sync(input);
+		input_report_key(input, keycode, 0);
+		input_sync(input);
+	}
 
 	return;
 }
 
-static int instance;
-static int acpi_video_resume(struct acpi_device *device)
+static int acpi_video_resume(struct notifier_block *nb,
+				unsigned long val, void *ign)
 {
 	struct acpi_video_bus *video;
 	struct acpi_video_device *video_device;
 	int i;
 
-	if (!device || !acpi_driver_data(device))
-		return -EINVAL;
+	switch (val) {
+	case PM_HIBERNATION_PREPARE:
+	case PM_SUSPEND_PREPARE:
+	case PM_RESTORE_PREPARE:
+		return NOTIFY_DONE;
+	}
 
-	video = acpi_driver_data(device);
+	video = container_of(nb, struct acpi_video_bus, pm_nb);
+
+	dev_info(&video->device->dev, "Restoring backlight state\n");
 
 	for (i = 0; i < video->attached_count; i++) {
 		video_device = video->attached_array[i].bind_info;
 		if (video_device && video_device->backlight)
 			acpi_video_set_brightness(video_device->backlight);
 	}
-	return AE_OK;
+
+	return NOTIFY_OK;
 }
 
 static acpi_status
@@ -2276,6 +2295,8 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context,
 	return AE_OK;
 }
 
+static int instance;
+
 static int acpi_video_bus_add(struct acpi_device *device)
 {
 	struct acpi_video_bus *video;
@@ -2357,7 +2378,6 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	set_bit(KEY_BRIGHTNESSDOWN, input->keybit);
 	set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
 	set_bit(KEY_DISPLAY_OFF, input->keybit);
-	set_bit(KEY_UNKNOWN, input->keybit);
 
 	error = input_register_device(input);
 	if (error)
@@ -2369,6 +2389,10 @@ static int acpi_video_bus_add(struct acpi_device *device)
 	       video->flags.rom ? "yes" : "no",
 	       video->flags.post ? "yes" : "no");
 
+	video->pm_nb.notifier_call = acpi_video_resume;
+	video->pm_nb.priority = 0;
+	register_pm_notifier(&video->pm_nb);
+
 	return 0;
 
  err_free_input_dev:
@@ -2395,6 +2419,8 @@ static int acpi_video_bus_remove(struct acpi_device *device, int type)
 
 	video = acpi_driver_data(device);
 
+	unregister_pm_notifier(&video->pm_nb);
+
 	acpi_video_bus_stop_devices(video);
 	acpi_video_bus_put_devices(video);
 	acpi_video_bus_remove_fs(device);