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Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6

Browse Source 
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-2.6: (36 commits)
  SCSI: convert struct class_device to struct device
  DRM: remove unused dev_class
  IB: rename "dev" to "srp_dev" in srp_host structure
  IB: convert struct class_device to struct device
  memstick: convert struct class_device to struct device
  driver core: replace remaining __FUNCTION__ occurrences
  sysfs: refill attribute buffer when reading from offset 0
  PM: Remove destroy_suspended_device()
  Firmware: add iSCSI iBFT Support
  PM: Remove legacy PM (fix)
  Kobject: Replace list_for_each() with list_for_each_entry().
  SYSFS: Explicitly include required header file slab.h.
  Driver core: make device_is_registered() work for class devices
  PM: Convert wakeup flag accessors to inline functions
  PM: Make wakeup flags available whenever CONFIG_PM is set
  PM: Fix misuse of wakeup flag accessors in serial core
  Driver core: Call device_pm_add() after bus_add_device() in device_add()
  PM: Handle device registrations during suspend/resume
  block: send disk "change" event for rescan_partitions()
  sysdev: detect multiple driver registrations
  ...

Fixed trivial conflict in include/linux/memory.h due to semaphore header
file change (made irrelevant by the change to mutex).
This commit is contained in:
Linus Torvalds
2008-04-21 15:49:58 -07:00
parent 529a41e366 ee959b00c3
commit e80ab411e5
129 changed files with 3872 additions and 2315 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
drivers/base/attribute_container.c
View File

@@ -27,21 +27,21 @@
struct internal_container {
struct klist_node node;
struct attribute_container *cont;
struct class_device classdev;
struct device classdev;
};
static void internal_container_klist_get(struct klist_node *n)
{
struct internal_container *ic =
container_of(n, struct internal_container, node);
class_device_get(&ic->classdev);
get_device(&ic->classdev);
}
static void internal_container_klist_put(struct klist_node *n)
{
struct internal_container *ic =
container_of(n, struct internal_container, node);
class_device_put(&ic->classdev);
put_device(&ic->classdev);
}
@@ -53,7 +53,7 @@ static void internal_container_klist_put(struct klist_node *n)
* Returns the container associated with this classdev.
*/
struct attribute_container *
attribute_container_classdev_to_container(struct class_device *classdev)
attribute_container_classdev_to_container(struct device *classdev)
{
struct internal_container *ic =
container_of(classdev, struct internal_container, classdev);
@@ -110,11 +110,11 @@ attribute_container_unregister(struct attribute_container *cont)
EXPORT_SYMBOL_GPL(attribute_container_unregister);
/* private function used as class release */
static void attribute_container_release(struct class_device *classdev)
static void attribute_container_release(struct device *classdev)
{
struct internal_container *ic
= container_of(classdev, struct internal_container, classdev);
struct device *dev = classdev->dev;
struct device *dev = classdev->parent;
kfree(ic);
put_device(dev);
@@ -129,12 +129,12 @@ static void attribute_container_release(struct class_device *classdev)
* This function allocates storage for the class device(s) to be
* attached to dev (one for each matching attribute_container). If no
* fn is provided, the code will simply register the class device via
* class_device_add. If a function is provided, it is expected to add
* device_add. If a function is provided, it is expected to add
* the class device at the appropriate time. One of the things that
* might be necessary is to allocate and initialise the classdev and
* then add it a later time. To do this, call this routine for
* allocation and initialisation and then use
* attribute_container_device_trigger() to call class_device_add() on
* attribute_container_device_trigger() to call device_add() on
* it. Note: after this, the class device contains a reference to dev
* which is not relinquished until the release of the classdev.
*/
@@ -142,7 +142,7 @@ void
attribute_container_add_device(struct device *dev,
int (*fn)(struct attribute_container *,
struct device *,
struct class_device *))
struct device *))
{
struct attribute_container *cont;
@@ -163,11 +163,11 @@ attribute_container_add_device(struct device *dev,
}
ic->cont = cont;
class_device_initialize(&ic->classdev);
ic->classdev.dev = get_device(dev);
device_initialize(&ic->classdev);
ic->classdev.parent = get_device(dev);
ic->classdev.class = cont->class;
cont->class->release = attribute_container_release;
strcpy(ic->classdev.class_id, dev->bus_id);
cont->class->dev_release = attribute_container_release;
strcpy(ic->classdev.bus_id, dev->bus_id);
if (fn)
fn(cont, dev, &ic->classdev);
else
@@ -195,20 +195,19 @@ attribute_container_add_device(struct device *dev,
* @fn: A function to call to remove the device
*
* This routine triggers device removal. If fn is NULL, then it is
* simply done via class_device_unregister (note that if something
* simply done via device_unregister (note that if something
* still has a reference to the classdev, then the memory occupied
* will not be freed until the classdev is released). If you want a
* two phase release: remove from visibility and then delete the
* device, then you should use this routine with a fn that calls
* class_device_del() and then use
* attribute_container_device_trigger() to do the final put on the
* classdev.
* device_del() and then use attribute_container_device_trigger()
* to do the final put on the classdev.
*/
void
attribute_container_remove_device(struct device *dev,
void (*fn)(struct attribute_container *,
struct device *,
struct class_device *))
struct device *))
{
struct attribute_container *cont;
@@ -224,14 +223,14 @@ attribute_container_remove_device(struct device *dev,
continue;
klist_for_each_entry(ic, &cont->containers, node, &iter) {
if (dev != ic->classdev.dev)
if (dev != ic->classdev.parent)
continue;
klist_del(&ic->node);
if (fn)
fn(cont, dev, &ic->classdev);
else {
attribute_container_remove_attrs(&ic->classdev);
class_device_unregister(&ic->classdev);
device_unregister(&ic->classdev);
}
}
}
@@ -252,7 +251,7 @@ void
attribute_container_device_trigger(struct device *dev,
int (*fn)(struct attribute_container *,
struct device *,
struct class_device *))
struct device *))
{
struct attribute_container *cont;
@@ -270,7 +269,7 @@ attribute_container_device_trigger(struct device *dev,
}
klist_for_each_entry(ic, &cont->containers, node, &iter) {
if (dev == ic->classdev.dev)
if (dev == ic->classdev.parent)
fn(cont, dev, &ic->classdev);
}
}
@@ -313,11 +312,11 @@ attribute_container_trigger(struct device *dev,
* attributes listed in the container
*/
int
attribute_container_add_attrs(struct class_device *classdev)
attribute_container_add_attrs(struct device *classdev)
{
struct attribute_container *cont =
attribute_container_classdev_to_container(classdev);
struct class_device_attribute **attrs = cont->attrs;
struct device_attribute **attrs = cont->attrs;
int i, error;
BUG_ON(attrs && cont->grp);
@@ -329,7 +328,7 @@ attribute_container_add_attrs(struct class_device *classdev)
return sysfs_create_group(&classdev->kobj, cont->grp);
for (i = 0; attrs[i]; i++) {
error = class_device_create_file(classdev, attrs[i]);
error = device_create_file(classdev, attrs[i]);
if (error)
return error;
}
@@ -338,18 +337,18 @@ attribute_container_add_attrs(struct class_device *classdev)
}
/**
* attribute_container_add_class_device - same function as class_device_add
* attribute_container_add_class_device - same function as device_add
*
* @classdev: the class device to add
*
* This performs essentially the same function as class_device_add except for
* This performs essentially the same function as device_add except for
* attribute containers, namely add the classdev to the system and then
* create the attribute files
*/
int
attribute_container_add_class_device(struct class_device *classdev)
attribute_container_add_class_device(struct device *classdev)
{
int error = class_device_add(classdev);
int error = device_add(classdev);
if (error)
return error;
return attribute_container_add_attrs(classdev);
@@ -364,7 +363,7 @@ attribute_container_add_class_device(struct class_device *classdev)
int
attribute_container_add_class_device_adapter(struct attribute_container *cont,
struct device *dev,
struct class_device *classdev)
struct device *classdev)
{
return attribute_container_add_class_device(classdev);
}
@@ -376,11 +375,11 @@ attribute_container_add_class_device_adapter(struct attribute_container *cont,
*
*/
void
attribute_container_remove_attrs(struct class_device *classdev)
attribute_container_remove_attrs(struct device *classdev)
{
struct attribute_container *cont =
attribute_container_classdev_to_container(classdev);
struct class_device_attribute **attrs = cont->attrs;
struct device_attribute **attrs = cont->attrs;
int i;
if (!attrs && !cont->grp)
@@ -392,7 +391,7 @@ attribute_container_remove_attrs(struct class_device *classdev)
}
for (i = 0; attrs[i]; i++)
class_device_remove_file(classdev, attrs[i]);
device_remove_file(classdev, attrs[i]);
}
/**
@@ -401,13 +400,13 @@ attribute_container_remove_attrs(struct class_device *classdev)
* @classdev: the class device
*
* This function simply removes all the attribute files and then calls
* class_device_del.
* device_del.
*/
void
attribute_container_class_device_del(struct class_device *classdev)
attribute_container_class_device_del(struct device *classdev)
{
attribute_container_remove_attrs(classdev);
class_device_del(classdev);
device_del(classdev);
}
/**
@@ -419,16 +418,16 @@ attribute_container_class_device_del(struct class_device *classdev)
* Looks up the device in the container's list of class devices and returns
* the corresponding class_device.
*/
struct class_device *
struct device *
attribute_container_find_class_device(struct attribute_container *cont,
struct device *dev)
{
struct class_device *cdev = NULL;
struct device *cdev = NULL;
struct internal_container *ic;
struct klist_iter iter;
klist_for_each_entry(ic, &cont->containers, node, &iter) {
if (ic->classdev.dev == dev) {
if (ic->classdev.parent == dev) {
cdev = &ic->classdev;
/* FIXME: must exit iterator then break */
klist_iter_exit(&iter);

17
drivers/base/bus.c
View File

@@ -79,7 +79,7 @@ static void driver_release(struct kobject *kobj)
{
struct driver_private *drv_priv = to_driver(kobj);
pr_debug("driver: '%s': %s\n", kobject_name(kobj), __FUNCTION__);
pr_debug("driver: '%s': %s\n", kobject_name(kobj), __func__);
kfree(drv_priv);
}
@@ -505,14 +505,11 @@ void bus_attach_device(struct device *dev)
int ret = 0;
if (bus) {
dev->is_registered = 1;
if (bus->p->drivers_autoprobe)
ret = device_attach(dev);
WARN_ON(ret < 0);
if (ret >= 0)
klist_add_tail(&dev->knode_bus, &bus->p->klist_devices);
else
dev->is_registered = 0;
}
}
@@ -533,10 +530,8 @@ void bus_remove_device(struct device *dev)
sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
dev->bus_id);
device_remove_attrs(dev->bus, dev);
if (dev->is_registered) {
dev->is_registered = 0;
klist_del(&dev->knode_bus);
}
klist_del(&dev->knode_bus);
pr_debug("bus: '%s': remove device %s\n",
dev->bus->name, dev->bus_id);
device_release_driver(dev);
@@ -682,19 +677,19 @@ int bus_add_driver(struct device_driver *drv)
error = driver_create_file(drv, &driver_attr_uevent);
if (error) {
printk(KERN_ERR "%s: uevent attr (%s) failed\n",
__FUNCTION__, drv->name);
__func__, drv->name);
}
error = driver_add_attrs(bus, drv);
if (error) {
/* How the hell do we get out of this pickle? Give up */
printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
__FUNCTION__, drv->name);
__func__, drv->name);
}
error = add_bind_files(drv);
if (error) {
/* Ditto */
printk(KERN_ERR "%s: add_bind_files(%s) failed\n",
__FUNCTION__, drv->name);
__func__, drv->name);
}
kobject_uevent(&priv->kobj, KOBJ_ADD);

8
drivers/base/class.c
View File

@@ -175,13 +175,13 @@ void class_unregister(struct class *cls)
static void class_create_release(struct class *cls)
{
pr_debug("%s called for %s\n", __FUNCTION__, cls->name);
pr_debug("%s called for %s\n", __func__, cls->name);
kfree(cls);
}
static void class_device_create_release(struct class_device *class_dev)
{
pr_debug("%s called for %s\n", __FUNCTION__, class_dev->class_id);
pr_debug("%s called for %s\n", __func__, class_dev->class_id);
kfree(class_dev);
}
@@ -189,7 +189,7 @@ static void class_device_create_release(struct class_device *class_dev)
static int class_device_create_uevent(struct class_device *class_dev,
struct kobj_uevent_env *env)
{
pr_debug("%s called for %s\n", __FUNCTION__, class_dev->class_id);
pr_debug("%s called for %s\n", __func__, class_dev->class_id);
return 0;
}
@@ -415,7 +415,7 @@ static int class_uevent(struct kset *kset, struct kobject *kobj,
struct device *dev = class_dev->dev;
int retval = 0;
pr_debug("%s - name = %s\n", __FUNCTION__, class_dev->class_id);
pr_debug("%s - name = %s\n", __func__, class_dev->class_id);
if (MAJOR(class_dev->devt)) {
add_uevent_var(env, "MAJOR=%u", MAJOR(class_dev->devt));

58
drivers/base/core.c
View File

@@ -207,7 +207,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
retval = dev->bus->uevent(dev, env);
if (retval)
pr_debug("device: '%s': %s: bus uevent() returned %d\n",
dev->bus_id, __FUNCTION__, retval);
dev->bus_id, __func__, retval);
}
/* have the class specific function add its stuff */
@@ -216,7 +216,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
if (retval)
pr_debug("device: '%s': %s: class uevent() "
"returned %d\n", dev->bus_id,
__FUNCTION__, retval);
__func__, retval);
}
/* have the device type specific fuction add its stuff */
@@ -225,7 +225,7 @@ static int dev_uevent(struct kset *kset, struct kobject *kobj,
if (retval)
pr_debug("device: '%s': %s: dev_type uevent() "
"returned %d\n", dev->bus_id,
__FUNCTION__, retval);
__func__, retval);
}
return retval;
@@ -782,7 +782,7 @@ int device_add(struct device *dev)
goto Done;
}
pr_debug("device: '%s': %s\n", dev->bus_id, __FUNCTION__);
pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
parent = get_device(dev->parent);
setup_parent(dev, parent);
@@ -817,13 +817,12 @@ int device_add(struct device *dev)
error = device_add_attrs(dev);
if (error)
goto AttrsError;
error = dpm_sysfs_add(dev);
if (error)
goto PMError;
device_pm_add(dev);
error = bus_add_device(dev);
if (error)
goto BusError;
error = device_pm_add(dev);
if (error)
goto PMError;
kobject_uevent(&dev->kobj, KOBJ_ADD);
bus_attach_device(dev);
if (parent)
@@ -843,9 +842,9 @@ int device_add(struct device *dev)
Done:
put_device(dev);
return error;
BusError:
device_pm_remove(dev);
PMError:
bus_remove_device(dev);
BusError:
if (dev->bus)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
BUS_NOTIFY_DEL_DEVICE, dev);
@@ -981,7 +980,7 @@ void device_del(struct device *dev)
*/
void device_unregister(struct device *dev)
{
pr_debug("device: '%s': %s\n", dev->bus_id, __FUNCTION__);
pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
device_del(dev);
put_device(dev);
}
@@ -1076,7 +1075,7 @@ EXPORT_SYMBOL_GPL(device_remove_file);
static void device_create_release(struct device *dev)
{
pr_debug("device: '%s': %s\n", dev->bus_id, __FUNCTION__);
pr_debug("device: '%s': %s\n", dev->bus_id, __func__);
kfree(dev);
}
@@ -1164,35 +1163,6 @@ void device_destroy(struct class *class, dev_t devt)
}
EXPORT_SYMBOL_GPL(device_destroy);
#ifdef CONFIG_PM_SLEEP
/**
* destroy_suspended_device - asks the PM core to remove a suspended device
* @class: pointer to the struct class that this device was registered with
* @devt: the dev_t of the device that was previously registered
*
* This call notifies the PM core of the necessity to unregister a suspended
* device created with a call to device_create() (devices cannot be
* unregistered directly while suspended, since the PM core holds their
* semaphores at that time).
*
* It can only be called within the scope of a system sleep transition. In
* practice this means it has to be directly or indirectly invoked either by
* a suspend or resume method, or by the PM core (e.g. via
* disable_nonboot_cpus() or enable_nonboot_cpus()).
*/
void destroy_suspended_device(struct class *class, dev_t devt)
{
struct device *dev;
dev = class_find_device(class, &devt, __match_devt);
if (dev) {
device_pm_schedule_removal(dev);
put_device(dev);
}
}
EXPORT_SYMBOL_GPL(destroy_suspended_device);
#endif /* CONFIG_PM_SLEEP */
/**
* device_rename - renames a device
* @dev: the pointer to the struct device to be renamed
@@ -1210,7 +1180,7 @@ int device_rename(struct device *dev, char *new_name)
return -EINVAL;
pr_debug("device: '%s': %s: renaming to '%s'\n", dev->bus_id,
__FUNCTION__, new_name);
__func__, new_name);
#ifdef CONFIG_SYSFS_DEPRECATED
if ((dev->class) && (dev->parent))
@@ -1249,7 +1219,7 @@ int device_rename(struct device *dev, char *new_name)
dev->bus_id);
if (error) {
dev_err(dev, "%s: sysfs_create_symlink failed (%d)\n",
__FUNCTION__, error);
__func__, error);
}
}
#endif
@@ -1325,7 +1295,7 @@ int device_move(struct device *dev, struct device *new_parent)
new_parent_kobj = get_device_parent(dev, new_parent);
pr_debug("device: '%s': %s: moving to '%s'\n", dev->bus_id,
__FUNCTION__, new_parent ? new_parent->bus_id : "<NULL>");
__func__, new_parent ? new_parent->bus_id : "<NULL>");
error = kobject_move(&dev->kobj, new_parent_kobj);
if (error) {
cleanup_glue_dir(dev, new_parent_kobj);

4
drivers/base/cpu.c
View File

@@ -28,7 +28,7 @@ static ssize_t show_online(struct sys_device *dev, char *buf)
return sprintf(buf, "%u\n", !!cpu_online(cpu->sysdev.id));
}
static ssize_t store_online(struct sys_device *dev, const char *buf,
static ssize_t __ref store_online(struct sys_device *dev, const char *buf,
size_t count)
{
struct cpu *cpu = container_of(dev, struct cpu, sysdev);
@@ -55,7 +55,7 @@ static ssize_t store_online(struct sys_device *dev, const char *buf,
}
static SYSDEV_ATTR(online, 0644, show_online, store_online);
static void __devinit register_cpu_control(struct cpu *cpu)
static void __cpuinit register_cpu_control(struct cpu *cpu)
{
sysdev_create_file(&cpu->sysdev, &attr_online);
}

14
drivers/base/dd.c
View File

@@ -30,12 +30,12 @@ static void driver_bound(struct device *dev)
{
if (klist_node_attached(&dev->knode_driver)) {
printk(KERN_WARNING "%s: device %s already bound\n",
__FUNCTION__, kobject_name(&dev->kobj));
__func__, kobject_name(&dev->kobj));
return;
}
pr_debug("driver: '%s': %s: bound to device '%s'\n", dev->bus_id,
__FUNCTION__, dev->driver->name);
__func__, dev->driver->name);
if (dev->bus)
blocking_notifier_call_chain(&dev->bus->p->bus_notifier,
@@ -104,13 +104,13 @@ static int really_probe(struct device *dev, struct device_driver *drv)
atomic_inc(&probe_count);
pr_debug("bus: '%s': %s: probing driver %s with device %s\n",
drv->bus->name, __FUNCTION__, drv->name, dev->bus_id);
drv->bus->name, __func__, drv->name, dev->bus_id);
WARN_ON(!list_empty(&dev->devres_head));
dev->driver = drv;
if (driver_sysfs_add(dev)) {
printk(KERN_ERR "%s: driver_sysfs_add(%s) failed\n",
__FUNCTION__, dev->bus_id);
__func__, dev->bus_id);
goto probe_failed;
}
@@ -127,7 +127,7 @@ static int really_probe(struct device *dev, struct device_driver *drv)
driver_bound(dev);
ret = 1;
pr_debug("bus: '%s': %s: bound device %s to driver %s\n",
drv->bus->name, __FUNCTION__, dev->bus_id, drv->name);
drv->bus->name, __func__, dev->bus_id, drv->name);
goto done;
probe_failed:
@@ -160,7 +160,7 @@ done:
*/
int driver_probe_done(void)
{
pr_debug("%s: probe_count = %d\n", __FUNCTION__,
pr_debug("%s: probe_count = %d\n", __func__,
atomic_read(&probe_count));
if (atomic_read(&probe_count))
return -EBUSY;
@@ -194,7 +194,7 @@ int driver_probe_device(struct device_driver *drv, struct device *dev)
goto done;
pr_debug("bus: '%s': %s: matched device %s with driver %s\n",
drv->bus->name, __FUNCTION__, dev->bus_id, drv->name);
drv->bus->name, __func__, dev->bus_id, drv->name);
ret = really_probe(dev, drv);

18
drivers/base/firmware_class.c
View File

@@ -156,7 +156,7 @@ static ssize_t firmware_loading_store(struct device *dev,
}
/* fallthrough */
default:
printk(KERN_ERR "%s: unexpected value (%d)\n", __FUNCTION__,
printk(KERN_ERR "%s: unexpected value (%d)\n", __func__,
loading);
/* fallthrough */
case -1:
@@ -209,7 +209,7 @@ fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
new_size = ALIGN(min_size, PAGE_SIZE);
new_data = vmalloc(new_size);
if (!new_data) {
printk(KERN_ERR "%s: unable to alloc buffer\n", __FUNCTION__);
printk(KERN_ERR "%s: unable to alloc buffer\n", __func__);
/* Make sure that we don't keep incomplete data */
fw_load_abort(fw_priv);
return -ENOMEM;
@@ -307,7 +307,7 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
*dev_p = NULL;
if (!fw_priv || !f_dev) {
printk(KERN_ERR "%s: kmalloc failed\n", __FUNCTION__);
printk(KERN_ERR "%s: kmalloc failed\n", __func__);
retval = -ENOMEM;
goto error_kfree;
}
@@ -328,7 +328,7 @@ static int fw_register_device(struct device **dev_p, const char *fw_name,
retval = device_register(f_dev);
if (retval) {
printk(KERN_ERR "%s: device_register failed\n",
__FUNCTION__);
__func__);
goto error_kfree;
}
*dev_p = f_dev;
@@ -362,14 +362,14 @@ static int fw_setup_device(struct firmware *fw, struct device **dev_p,
retval = sysfs_create_bin_file(&f_dev->kobj, &fw_priv->attr_data);
if (retval) {
printk(KERN_ERR "%s: sysfs_create_bin_file failed\n",
__FUNCTION__);
__func__);
goto error_unreg;
}
retval = device_create_file(f_dev, &dev_attr_loading);
if (retval) {
printk(KERN_ERR "%s: device_create_file failed\n",
__FUNCTION__);
__func__);
goto error_unreg;
}
@@ -399,7 +399,7 @@ _request_firmware(const struct firmware **firmware_p, const char *name,
*firmware_p = firmware = kzalloc(sizeof(*firmware), GFP_KERNEL);
if (!firmware) {
printk(KERN_ERR "%s: kmalloc(struct firmware) failed\n",
__FUNCTION__);
__func__);
retval = -ENOMEM;
goto out;
}
@@ -570,13 +570,13 @@ firmware_class_init(void)
int error;
error = class_register(&firmware_class);
if (error) {
printk(KERN_ERR "%s: class_register failed\n", __FUNCTION__);
printk(KERN_ERR "%s: class_register failed\n", __func__);
return error;
}
error = class_create_file(&firmware_class, &class_attr_timeout);
if (error) {
printk(KERN_ERR "%s: class_create_file failed\n",
__FUNCTION__);
__func__);
class_unregister(&firmware_class);
}
return error;

33
drivers/base/memory.c
View File

@@ -20,6 +20,7 @@
#include <linux/kobject.h>
#include <linux/memory_hotplug.h>
#include <linux/mm.h>
#include <linux/mutex.h>
#include <asm/atomic.h>
#include <asm/uaccess.h>
@@ -61,8 +62,8 @@ void unregister_memory_notifier(struct notifier_block *nb)
/*
* register_memory - Setup a sysfs device for a memory block
*/
int register_memory(struct memory_block *memory, struct mem_section *section,
struct node *root)
static
int register_memory(struct memory_block *memory, struct mem_section *section)
{
int error;
@@ -70,26 +71,18 @@ int register_memory(struct memory_block *memory, struct mem_section *section,
memory->sysdev.id = __section_nr(section);
error = sysdev_register(&memory->sysdev);
if (root && !error)
error = sysfs_create_link(&root->sysdev.kobj,
&memory->sysdev.kobj,
kobject_name(&memory->sysdev.kobj));
return error;
}
static void
unregister_memory(struct memory_block *memory, struct mem_section *section,
struct node *root)
unregister_memory(struct memory_block *memory, struct mem_section *section)
{
BUG_ON(memory->sysdev.cls != &memory_sysdev_class);
BUG_ON(memory->sysdev.id != __section_nr(section));
/* drop the ref. we got in remove_memory_block() */
kobject_put(&memory->sysdev.kobj);
sysdev_unregister(&memory->sysdev);
if (root)
sysfs_remove_link(&root->sysdev.kobj,
kobject_name(&memory->sysdev.kobj));
}
/*
@@ -193,7 +186,7 @@ memory_block_action(struct memory_block *mem, unsigned long action)
break;
default:
printk(KERN_WARNING "%s(%p, %ld) unknown action: %ld\n",
__FUNCTION__, mem, action, action);
__func__, mem, action, action);
WARN_ON(1);
ret = -EINVAL;
}
@@ -205,7 +198,7 @@ static int memory_block_change_state(struct memory_block *mem,
unsigned long to_state, unsigned long from_state_req)
{
int ret = 0;
down(&mem->state_sem);
mutex_lock(&mem->state_mutex);
if (mem->state != from_state_req) {
ret = -EINVAL;
@@ -217,7 +210,7 @@ static int memory_block_change_state(struct memory_block *mem,
mem->state = to_state;
out:
up(&mem->state_sem);
mutex_unlock(&mem->state_mutex);
return ret;
}
@@ -341,10 +334,10 @@ static int add_memory_block(unsigned long node_id, struct mem_section *section,
mem->phys_index = __section_nr(section);
mem->state = state;
init_MUTEX(&mem->state_sem);
mutex_init(&mem->state_mutex);
mem->phys_device = phys_device;
ret = register_memory(mem, section, NULL);
ret = register_memory(mem, section);
if (!ret)
ret = mem_create_simple_file(mem, phys_index);
if (!ret)
@@ -395,7 +388,7 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section,
mem_remove_simple_file(mem, phys_index);
mem_remove_simple_file(mem, state);
mem_remove_simple_file(mem, phys_device);
unregister_memory(mem, section, NULL);
unregister_memory(mem, section);
return 0;
}
@@ -451,6 +444,6 @@ int __init memory_dev_init(void)
ret = err;
out:
if (ret)
printk(KERN_ERR "%s() failed: %d\n", __FUNCTION__, ret);
printk(KERN_ERR "%s() failed: %d\n", __func__, ret);
return ret;
}

106
drivers/base/power/main.c
View File

@@ -50,26 +50,40 @@
LIST_HEAD(dpm_active);
static LIST_HEAD(dpm_off);
static LIST_HEAD(dpm_off_irq);
static LIST_HEAD(dpm_destroy);
static DEFINE_MUTEX(dpm_list_mtx);
static DECLARE_RWSEM(pm_sleep_rwsem);
int (*platform_enable_wakeup)(struct device *dev, int is_on);
/* 'true' if all devices have been suspended, protected by dpm_list_mtx */
static bool all_sleeping;
/**
* device_pm_add - add a device to the list of active devices
* @dev: Device to be added to the list
*/
void device_pm_add(struct device *dev)
int device_pm_add(struct device *dev)
{
int error = 0;
pr_debug("PM: Adding info for %s:%s\n",
dev->bus ? dev->bus->name : "No Bus",
kobject_name(&dev->kobj));
mutex_lock(&dpm_list_mtx);
list_add_tail(&dev->power.entry, &dpm_active);
if ((dev->parent && dev->parent->power.sleeping) || all_sleeping) {
if (dev->parent->power.sleeping)
dev_warn(dev,
"parent %s is sleeping, will not add\n",
dev->parent->bus_id);
else
dev_warn(dev, "devices are sleeping, will not add\n");
WARN_ON(true);
error = -EBUSY;
} else {
error = dpm_sysfs_add(dev);
if (!error)
list_add_tail(&dev->power.entry, &dpm_active);
}
mutex_unlock(&dpm_list_mtx);
return error;
}
/**
@@ -89,50 +103,6 @@ void device_pm_remove(struct device *dev)
mutex_unlock(&dpm_list_mtx);
}
/**
* device_pm_schedule_removal - schedule the removal of a suspended device
* @dev: Device to destroy
*
* Moves the device to the dpm_destroy list for further processing by
* unregister_dropped_devices().
*/
void device_pm_schedule_removal(struct device *dev)
{
pr_debug("PM: Preparing for removal: %s:%s\n",
dev->bus ? dev->bus->name : "No Bus",
kobject_name(&dev->kobj));
mutex_lock(&dpm_list_mtx);
list_move_tail(&dev->power.entry, &dpm_destroy);
mutex_unlock(&dpm_list_mtx);
}
EXPORT_SYMBOL_GPL(device_pm_schedule_removal);
/**
* pm_sleep_lock - mutual exclusion for registration and suspend
*
* Returns 0 if no suspend is underway and device registration
* may proceed, otherwise -EBUSY.
*/
int pm_sleep_lock(void)
{
if (down_read_trylock(&pm_sleep_rwsem))
return 0;
return -EBUSY;
}
/**
* pm_sleep_unlock - mutual exclusion for registration and suspend
*
* This routine undoes the effect of device_pm_add_lock
* when a device's registration is complete.
*/
void pm_sleep_unlock(void)
{
up_read(&pm_sleep_rwsem);
}
/*------------------------- Resume routines -------------------------*/
/**
@@ -242,11 +212,13 @@ static int resume_device(struct device *dev)
static void dpm_resume(void)
{
mutex_lock(&dpm_list_mtx);
all_sleeping = false;
while(!list_empty(&dpm_off)) {
struct list_head *entry = dpm_off.next;
struct device *dev = to_device(entry);
list_move_tail(entry, &dpm_active);
dev->power.sleeping = false;
mutex_unlock(&dpm_list_mtx);
resume_device(dev);
mutex_lock(&dpm_list_mtx);
@@ -254,26 +226,6 @@ static void dpm_resume(void)
mutex_unlock(&dpm_list_mtx);
}
/**
* unregister_dropped_devices - Unregister devices scheduled for removal
*
* Unregister all devices on the dpm_destroy list.
*/
static void unregister_dropped_devices(void)
{
mutex_lock(&dpm_list_mtx);
while (!list_empty(&dpm_destroy)) {
struct list_head *entry = dpm_destroy.next;
struct device *dev = to_device(entry);
mutex_unlock(&dpm_list_mtx);
/* This also removes the device from the list */
device_unregister(dev);
mutex_lock(&dpm_list_mtx);
}
mutex_unlock(&dpm_list_mtx);
}
/**
* device_resume - Restore state of each device in system.
*
@@ -284,8 +236,6 @@ void device_resume(void)
{
might_sleep();
dpm_resume();
unregister_dropped_devices();
up_write(&pm_sleep_rwsem);
}
EXPORT_SYMBOL_GPL(device_resume);
@@ -377,11 +327,6 @@ static int suspend_device(struct device *dev, pm_message_t state)
down(&dev->sem);
if (dev->power.power_state.event) {
dev_dbg(dev, "PM: suspend %d-->%d\n",
dev->power.power_state.event, state.event);
}
if (dev->class && dev->class->suspend) {
suspend_device_dbg(dev, state, "class ");
error = dev->class->suspend(dev, state);
@@ -426,6 +371,9 @@ static int dpm_suspend(pm_message_t state)
struct list_head *entry = dpm_active.prev;
struct device *dev = to_device(entry);
WARN_ON(dev->parent && dev->parent->power.sleeping);
dev->power.sleeping = true;
mutex_unlock(&dpm_list_mtx);
error = suspend_device(dev, state);
mutex_lock(&dpm_list_mtx);
@@ -437,11 +385,14 @@ static int dpm_suspend(pm_message_t state)
(error == -EAGAIN ?
" (please convert to suspend_late)" :
""));
dev->power.sleeping = false;
break;
}
if (!list_empty(&dev->power.entry))
list_move(&dev->power.entry, &dpm_off);
}
if (!error)
all_sleeping = true;
mutex_unlock(&dpm_list_mtx);
return error;
@@ -459,7 +410,6 @@ int device_suspend(pm_message_t state)
int error;
might_sleep();
down_write(&pm_sleep_rwsem);
error = dpm_suspend(state);
if (error)
device_resume();

23
drivers/base/power/power.h
View File

@@ -11,30 +11,13 @@ static inline struct device *to_device(struct list_head *entry)
return container_of(entry, struct device, power.entry);
}
extern void device_pm_add(struct device *);
extern int device_pm_add(struct device *);
extern void device_pm_remove(struct device *);
extern int pm_sleep_lock(void);
extern void pm_sleep_unlock(void);
#else /* CONFIG_PM_SLEEP */
static inline void device_pm_add(struct device *dev)
{
}
static inline void device_pm_remove(struct device *dev)
{
}
static inline int pm_sleep_lock(void)
{
return 0;
}
static inline void pm_sleep_unlock(void)
{
}
static inline int device_pm_add(struct device *dev) { return 0; }
static inline void device_pm_remove(struct device *dev) {}
#endif

2
drivers/base/power/sysfs.c
View File

@@ -6,6 +6,8 @@
#include <linux/string.h>
#include "power.h"
int (*platform_enable_wakeup)(struct device *dev, int is_on);
/*
* wakeup - Report/change current wakeup option for device

18
drivers/base/sys.c
View File

@@ -167,6 +167,22 @@ int sysdev_driver_register(struct sysdev_class *cls, struct sysdev_driver *drv)
{
int err = 0;
if (!cls) {
printk(KERN_WARNING "sysdev: invalid class passed to "
"sysdev_driver_register!\n");
WARN_ON(1);
return -EINVAL;
}
/* Check whether this driver has already been added to a class. */
if ((drv->entry.next != drv->entry.prev) ||
(drv->entry.next != NULL)) {
printk(KERN_WARNING "sysdev: class %s: driver (%p) has already"
" been registered to a class, something is wrong, but "
"will forge on!\n", cls->name, drv);
WARN_ON(1);
}
mutex_lock(&sysdev_drivers_lock);
if (cls && kset_get(&cls->kset)) {
list_add_tail(&drv->entry, &cls->drivers);
@@ -179,7 +195,7 @@ int sysdev_driver_register(struct sysdev_class *cls, struct sysdev_driver *drv)
}
} else {
err = -EINVAL;
printk(KERN_ERR "%s: invalid device class\n", __FUNCTION__);
printk(KERN_ERR "%s: invalid device class\n", __func__);
WARN_ON(1);
}
mutex_unlock(&sysdev_drivers_lock);

14
drivers/base/transport_class.c
View File

@@ -66,7 +66,7 @@ EXPORT_SYMBOL_GPL(transport_class_unregister);
static int anon_transport_dummy_function(struct transport_container *tc,
struct device *dev,
struct class_device *cdev)
struct device *cdev)
{
/* do nothing */
return 0;
@@ -115,7 +115,7 @@ EXPORT_SYMBOL_GPL(anon_transport_class_unregister);
static int transport_setup_classdev(struct attribute_container *cont,
struct device *dev,
struct class_device *classdev)
struct device *classdev)
{
struct transport_class *tclass = class_to_transport_class(cont->class);
struct transport_container *tcont = attribute_container_to_transport_container(cont);
@@ -149,7 +149,7 @@ EXPORT_SYMBOL_GPL(transport_setup_device);
static int transport_add_class_device(struct attribute_container *cont,
struct device *dev,
struct class_device *classdev)
struct device *classdev)
{
int error = attribute_container_add_class_device(classdev);
struct transport_container *tcont =
@@ -181,7 +181,7 @@ EXPORT_SYMBOL_GPL(transport_add_device);
static int transport_configure(struct attribute_container *cont,
struct device *dev,
struct class_device *cdev)
struct device *cdev)
{
struct transport_class *tclass = class_to_transport_class(cont->class);
struct transport_container *tcont = attribute_container_to_transport_container(cont);
@@ -212,7 +212,7 @@ EXPORT_SYMBOL_GPL(transport_configure_device);
static int transport_remove_classdev(struct attribute_container *cont,
struct device *dev,
struct class_device *classdev)
struct device *classdev)
{
struct transport_container *tcont =
attribute_container_to_transport_container(cont);
@@ -251,12 +251,12 @@ EXPORT_SYMBOL_GPL(transport_remove_device);
static void transport_destroy_classdev(struct attribute_container *cont,
struct device *dev,
struct class_device *classdev)
struct device *classdev)
{
struct transport_class *tclass = class_to_transport_class(cont->class);
if (tclass->remove != anon_transport_dummy_function)
class_device_put(classdev);
put_device(classdev);
}