diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-22 13:13:47 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2008-07-22 13:13:47 -0700 |
| commit | 53baaaa9682c230410a057263d1ce2922f43ddc4 (patch) | |
| tree | f5cced5622130f780d76953b284a631c3d226488 /drivers | |
| parent | f10140fbe5f97ecfeda986a12d0f1bad75642779 (diff) | |
| parent | 3f9787046ea37a26170dc4439efa21f8d23a9978 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (79 commits)
arm: bus_id -> dev_name() and dev_set_name() conversions
sparc64: fix up bus_id changes in sparc core code
3c59x: handle pci_name() being const
MTD: handle pci_name() being const
HP iLO driver
sysdev: Convert the x86 mce tolerant sysdev attribute to generic attribute
sysdev: Add utility functions for simple int/ulong variable sysdev attributes
sysdev: Pass the attribute to the low level sysdev show/store function
driver core: Suppress sysfs warnings for device_rename().
kobject: Transmit return value of call_usermodehelper() to caller
sysfs-rules.txt: reword API stability statement
debugfs: Implement debugfs_remove_recursive()
HOWTO: change email addresses of James in HOWTO
always enable FW_LOADER unless EMBEDDED=y
uio-howto.tmpl: use unique output names
uio-howto.tmpl: use standard copyright/legal markings
sysfs: don't call notify_change
sysdev: fix debugging statements in registration code.
kobject: should use kobject_put() in kset-example
kobject: reorder kobject to save space on 64 bit builds
...
Diffstat (limited to 'drivers')
101 files changed, 1746 insertions, 399 deletions
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 55c17afbe66..2655bc1b4ee 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -263,22 +263,22 @@ static int acpi_fan_add(struct acpi_device *device) goto end; } - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev.bus_id, cdev->id); + dev_info(&device->dev, "registered as cooling_device%d\n", cdev->id); acpi_driver_data(device) = cdev; result = sysfs_create_link(&device->dev.kobj, &cdev->device.kobj, "thermal_cooling"); if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); + dev_err(&device->dev, "Failed to create sysfs link " + "'thermal_cooling'\n"); result = sysfs_create_link(&cdev->device.kobj, &device->dev.kobj, "device"); if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); + dev_err(&device->dev, "Failed to create sysfs link " + "'device'\n"); result = acpi_fan_add_fs(device); if (result) diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 2f173e83f8a..084109507c9 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -146,8 +146,7 @@ static int acpi_bind_one(struct device *dev, acpi_handle handle) acpi_status status; if (dev->archdata.acpi_handle) { - printk(KERN_WARNING PREFIX - "Drivers changed 'acpi_handle' for %s\n", dev->bus_id); + dev_warn(dev, "Drivers changed 'acpi_handle'\n"); return -EINVAL; } get_device(dev); @@ -195,8 +194,7 @@ static int acpi_unbind_one(struct device *dev) /* acpi_bind_one increase refcnt by one */ put_device(dev); } else { - printk(KERN_ERR PREFIX - "Oops, 'acpi_handle' corrupt for %s\n", dev->bus_id); + dev_err(dev, "Oops, 'acpi_handle' corrupt\n"); } return 0; } diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index ec0f2d581ec..e36422a7122 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -714,9 +714,8 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device) goto end; } - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev.bus_id, pr->cdev->id); + dev_info(&device->dev, "registered as cooling_device%d\n", + pr->cdev->id); result = sysfs_create_link(&device->dev.kobj, &pr->cdev->device.kobj, diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index f3132aa47a6..f6f52c1a2ab 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -471,7 +471,7 @@ static int acpi_device_register(struct acpi_device *device, device->dev.release = &acpi_device_release; result = device_add(&device->dev); if(result) { - printk(KERN_ERR PREFIX "Error adding device %s", device->dev.bus_id); + dev_err(&device->dev, "Error adding device\n"); goto end; } diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 84c795fb9b1..30a34133793 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -1179,8 +1179,8 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) tz->tz_enabled = 1; - printk(KERN_INFO PREFIX "%s is registered as thermal_zone%d\n", - tz->device->dev.bus_id, tz->thermal_zone->id); + dev_info(&tz->device->dev, "registered as thermal_zone%d\n", + tz->thermal_zone->id); return 0; } diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 64c889331f3..37b9e16710d 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -762,9 +762,8 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (IS_ERR(device->cdev)) return; - printk(KERN_INFO PREFIX - "%s is registered as cooling_device%d\n", - device->dev->dev.bus_id, device->cdev->id); + dev_info(&device->dev->dev, "registered as cooling_device%d\n", + device->cdev->id); result = sysfs_create_link(&device->dev->dev.kobj, &device->cdev->device.kobj, "thermal_cooling"); diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig index d47482fa1d2..6318f6b5736 100644 --- a/drivers/base/Kconfig +++ b/drivers/base/Kconfig @@ -27,8 +27,9 @@ config PREVENT_FIRMWARE_BUILD If unsure say Y here. config FW_LOADER - tristate "Userspace firmware loading support" + tristate "Userspace firmware loading support" if EMBEDDED depends on HOTPLUG + default y ---help--- This option is provided for the case where no in-kernel-tree modules require userspace firmware loading support, but a module built outside diff --git a/drivers/base/base.h b/drivers/base/base.h index 2c9ae43e221..31dc0cd84af 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -36,6 +36,33 @@ struct driver_private { }; #define to_driver(obj) container_of(obj, struct driver_private, kobj) + +/** + * struct class_private - structure to hold the private to the driver core portions of the class structure. + * + * @class_subsys - the struct kset that defines this class. This is the main kobject + * @class_devices - list of devices associated with this class + * @class_interfaces - list of class_interfaces associated with this class + * @class_dirs - "glue" directory for virtual devices associated with this class + * @class_mutex - mutex to protect the children, devices, and interfaces lists. + * @class - pointer back to the struct class that this structure is associated + * with. + * + * This structure is the one that is the actual kobject allowing struct + * class to be statically allocated safely. Nothing outside of the driver + * core should ever touch these fields. + */ +struct class_private { + struct kset class_subsys; + struct list_head class_devices; + struct list_head class_interfaces; + struct kset class_dirs; + struct mutex class_mutex; + struct class *class; +}; +#define to_class(obj) \ + container_of(obj, struct class_private, class_subsys.kobj) + /* initialisation functions */ extern int devices_init(void); extern int buses_init(void); diff --git a/drivers/base/class.c b/drivers/base/class.c index e085af0ff94..839d27cecb3 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -18,20 +18,20 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/genhd.h> +#include <linux/mutex.h> #include "base.h" #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) -#define to_class(obj) container_of(obj, struct class, subsys.kobj) static ssize_t class_attr_show(struct kobject *kobj, struct attribute *attr, char *buf) { struct class_attribute *class_attr = to_class_attr(attr); - struct class *dc = to_class(kobj); + struct class_private *cp = to_class(kobj); ssize_t ret = -EIO; if (class_attr->show) - ret = class_attr->show(dc, buf); + ret = class_attr->show(cp->class, buf); return ret; } @@ -39,17 +39,18 @@ static ssize_t class_attr_store(struct kobject *kobj, struct attribute *attr, const char *buf, size_t count) { struct class_attribute *class_attr = to_class_attr(attr); - struct class *dc = to_class(kobj); + struct class_private *cp = to_class(kobj); ssize_t ret = -EIO; if (class_attr->store) - ret = class_attr->store(dc, buf, count); + ret = class_attr->store(cp->class, buf, count); return ret; } static void class_release(struct kobject *kobj) { - struct class *class = to_class(kobj); + struct class_private *cp = to_class(kobj); + struct class *class = cp->class; pr_debug("class '%s': release.\n", class->name); @@ -70,7 +71,7 @@ static struct kobj_type class_ktype = { .release = class_release, }; -/* Hotplug events for classes go to the class_obj subsys */ +/* Hotplug events for classes go to the class class_subsys */ static struct kset *class_kset; @@ -78,7 +79,8 @@ int class_create_file(struct class *cls, const struct class_attribute *attr) { int error; if (cls) - error = sysfs_create_file(&cls->subsys.kobj, &attr->attr); + error = sysfs_create_file(&cls->p->class_subsys.kobj, + &attr->attr); else error = -EINVAL; return error; @@ -87,21 +89,20 @@ int class_create_file(struct class *cls, const struct class_attribute *attr) void class_remove_file(struct class *cls, const struct class_attribute *attr) { if (cls) - sysfs_remove_file(&cls->subsys.kobj, &attr->attr); + sysfs_remove_file(&cls->p->class_subsys.kobj, &attr->attr); } static struct class *class_get(struct class *cls) { if (cls) - return container_of(kset_get(&cls->subsys), - struct class, subsys); - return NULL; + kset_get(&cls->p->class_subsys); + return cls; } static void class_put(struct class *cls) { if (cls) - kset_put(&cls->subsys); + kset_put(&cls->p->class_subsys); } static int add_class_attrs(struct class *cls) @@ -134,42 +135,57 @@ static void remove_class_attrs(struct class *cls) } } -int class_register(struct class *cls) +int __class_register(struct class *cls, struct lock_class_key *key) { + struct class_private *cp; int error; pr_debug("device class '%s': registering\n", cls->name); - INIT_LIST_HEAD(&cls->devices); - INIT_LIST_HEAD(&cls->interfaces); - kset_init(&cls->class_dirs); - init_MUTEX(&cls->sem); - error = kobject_set_name(&cls->subsys.kobj, "%s", cls->name); - if (error) + cp = kzalloc(sizeof(*cp), GFP_KERNEL); + if (!cp) + return -ENOMEM; + INIT_LIST_HEAD(&cp->class_devices); + INIT_LIST_HEAD(&cp->class_interfaces); + kset_init(&cp->class_dirs); + __mutex_init(&cp->class_mutex, "struct class mutex", key); + error = kobject_set_name(&cp->class_subsys.kobj, "%s", cls->name); + if (error) { + kfree(cp); return error; + } + + /* set the default /sys/dev directory for devices of this class */ + if (!cls->dev_kobj) + cls->dev_kobj = sysfs_dev_char_kobj; #if defined(CONFIG_SYSFS_DEPRECATED) && defined(CONFIG_BLOCK) /* let the block class directory show up in the root of sysfs */ if (cls != &block_class) - cls->subsys.kobj.kset = class_kset; + cp->class_subsys.kobj.kset = class_kset; #else - cls->subsys.kobj.kset = class_kset; + cp->class_subsys.kobj.kset = class_kset; #endif - cls->subsys.kobj.ktype = &class_ktype; + cp->class_subsys.kobj.ktype = &class_ktype; + cp->class = cls; + cls->p = cp; - error = kset_register(&cls->subsys); - if (!error) { - error = add_class_attrs(class_get(cls)); - class_put(cls); + error = kset_register(&cp->class_subsys); + if (error) { + kfree(cp); + return error; } + error = add_class_attrs(class_get(cls)); + class_put(cls); return error; } +EXPORT_SYMBOL_GPL(__class_register); void class_unregister(struct class *cls) { pr_debug("device class '%s': unregistering\n", cls->name); remove_class_attrs(cls); - kset_unregister(&cls->subsys); + kset_unregister(&cls->p->class_subsys); } static void class_create_release(struct class *cls) @@ -189,7 +205,8 @@ static void class_create_release(struct class *cls) * Note, the pointer created here is to be destroyed when finished by * making a call to class_destroy(). */ -struct class *class_create(struct module *owner, const char *name) +struct class *__class_create(struct module *owner, const char *name, + struct lock_class_key *key) { struct class *cls; int retval; @@ -204,7 +221,7 @@ struct class *class_create(struct module *owner, const char *name) cls->owner = owner; cls->class_release = class_create_release; - retval = class_register(cls); + retval = __class_register(cls, key); if (retval) goto error; @@ -214,6 +231,7 @@ error: kfree(cls); return ERR_PTR(retval); } +EXPORT_SYMBOL_GPL(__class_create); /** * class_destroy - destroys a struct class structure @@ -252,39 +270,44 @@ char *make_class_name(const char *name, struct kobject *kobj) /** * class_for_each_device - device iterator * @class: the class we're iterating + * @start: the device to start with in the list, if any. * @data: data for the callback * @fn: function to be called for each device * * Iterate over @class's list of devices, and call @fn for each, - * passing it @data. + * passing it @data. If @start is set, the list iteration will start + * there, otherwise if it is NULL, the iteration starts at the + * beginning of the list. * * We check the return of @fn each time. If it returns anything * other than 0, we break out and return that value. * - * Note, we hold class->sem in this function, so it can not be + * Note, we hold class->class_mutex in this function, so it can not be * re-acquired in @fn, otherwise it will self-deadlocking. For * example, calls to add or remove class members would be verboten. */ -int class_for_each_device(struct class *class, void *data, - int (*fn)(struct device *, void *)) +int class_for_each_device(struct class *class, struct device *start, + void *data, int (*fn)(struct device *, void *)) { struct device *dev; int error = 0; if (!class) return -EINVAL; - down(&class->sem); - list_for_each_entry(dev, &class->devices, node) { + mutex_lock(&class->p->class_mutex); + list_for_each_entry(dev, &class->p->class_devices, node) { + if (start) { + if (start == dev) + start = NULL; + continue; + } dev = get_device(dev); - if (dev) { - error = fn(dev, data); - put_device(dev); - } else - error = -ENODEV; + error = fn(dev, data); + put_device(dev); if (error) break; } - up(&class->sem); + mutex_unlock(&class->p->class_mutex); return error; } @@ -293,6 +316,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device); /** * class_find_device - device iterator for locating a particular device * @class: the class we're iterating + * @start: Device to begin with * @data: data for the match function * @match: function to check device * @@ -306,12 +330,13 @@ EXPORT_SYMBOL_GPL(class_for_each_device); * * Note, you will need to drop the reference with put_device() after use. * - * We hold class->sem in this function, so it can not be + * We hold class->class_mutex in this function, so it can not be * re-acquired in @match, otherwise it will self-deadlocking. For * example, calls to add or remove class members would be verboten. */ -struct device *class_find_device(struct class *class, void *data, - int (*match)(struct device *, void *)) +struct device *class_find_device(struct class *class, struct device *start, + void *data, + int (*match)(struct device *, void *)) { struct device *dev; int found = 0; @@ -319,19 +344,21 @@ struct device *class_find_device(struct class *class, void *data, if (!class) return NULL; - down(&class->sem); - list_for_each_entry(dev, &class->devices, node) { + mutex_lock(&class->p->class_mutex); + list_for_each_entry(dev, &class->p->class_devices, node) { + if (start) { + if (start == dev) + start = NULL; + continue; + } dev = get_device(dev); - if (dev) { - if (match(dev, data)) { - found = 1; - break; - } else - put_device(dev); - } else + if (match(dev, data)) { + found = 1; break; + } else + put_device(dev); } - up(&class->sem); + mutex_unlock(&class->p->class_mutex); return found ? dev : NULL; } @@ -349,13 +376,13 @@ int class_interface_register(struct class_interface *class_intf) if (!parent) return -EINVAL; - down(&parent->sem); - list_add_tail(&class_intf->node, &parent->interfaces); + mutex_lock(&parent->p->class_mutex); + list_add_tail(&class_intf->node, &parent->p->class_interfaces); if (class_intf->add_dev) { - list_for_each_entry(dev, &parent->devices, node) + list_for_each_entry(dev, &parent->p->class_devices, node) class_intf->add_dev(dev, class_intf); } - up(&parent->sem); + mutex_unlock(&parent->p->class_mutex); return 0; } @@ -368,13 +395,13 @@ void class_interface_unregister(struct class_interface *class_intf) if (!parent) return; - down(&parent->sem); + mutex_lock(&parent->p->class_mutex); list_del_init(&class_intf->node); if (class_intf->remove_dev) { - list_for_each_entry(dev, &parent->devices, node) + list_for_each_entry(dev, &parent->p->class_devices, node) class_intf->remove_dev(dev, class_intf); } - up(&parent->sem); + mutex_unlock(&parent->p->class_mutex); class_put(parent); } @@ -389,9 +416,7 @@ int __init classes_init(void) EXPORT_SYMBOL_GPL(class_create_file); EXPORT_SYMBOL_GPL(class_remove_file); -EXPORT_SYMBOL_GPL(class_register); EXPORT_SYMBOL_GPL(class_unregister); -EXPORT_SYMBOL_GPL(class_create); EXPORT_SYMBOL_GPL(class_destroy); EXPORT_SYMBOL_GPL(class_interface_register); diff --git a/drivers/base/core.c b/drivers/base/core.c index ee0a51a3a41..7d5c63c81a5 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -21,12 +21,16 @@ #include <linux/genhd.h> #include <linux/kallsyms.h> #include <linux/semaphore.h> +#include <linux/mutex.h> #include "base.h" #include "power/power.h" int (*platform_notify)(struct device *dev) = NULL; int (*platform_notify_remove)(struct device *dev) = NULL; +static struct kobject *dev_kobj; +struct kobject *sysfs_dev_char_kobj; +struct kobject *sysfs_dev_block_kobj; #ifdef CONFIG_BLOCK static inline int device_is_not_partition(struct device *dev) @@ -548,7 +552,7 @@ static struct kobject *get_device_parent(struct device *dev, { /* class devices without a parent live in /sys/class/<classname>/ */ if (dev->class && (!parent || parent->class != dev->class)) - return &dev->class->subsys.kobj; + return &dev->class->p->class_subsys.kobj; /* all other devices keep their parent */ else if (parent) return &parent->kobj; @@ -594,13 +598,13 @@ static struct kobject *get_device_parent(struct device *dev, parent_kobj = &parent->kobj; /* find our class-directory at the parent and reference it */ - spin_lock(&dev->class->class_dirs.list_lock); - list_for_each_entry(k, &dev->class->class_dirs.list, entry) + spin_lock(&dev->class->p->class_dirs.list_lock); + list_for_each_entry(k, &dev->class->p->class_dirs.list, entry) if (k->parent == parent_kobj) { kobj = kobject_get(k); break; } - spin_unlock(&dev->class->class_dirs.list_lock); + spin_unlock(&dev->class->p->class_dirs.list_lock); if (kobj) return kobj; @@ -608,7 +612,7 @@ static struct kobject *get_device_parent(struct device *dev, k = kobject_create(); if (!k) return NULL; - k->kset = &dev->class->class_dirs; + k->kset = &dev->class->p->class_dirs; retval = kobject_add(k, parent_kobj, "%s", dev->class->name); if (retval < 0) { kobject_put(k); @@ -627,7 +631,7 @@ static void cleanup_glue_dir(struct device *dev, struct kobject *glue_dir) { /* see if we live in a "glue" directory */ if (!glue_dir || !dev->class || - glue_dir->kset != &dev->class->class_dirs) + glue_dir->kset != &dev->class->p->class_dirs) return; kobject_put(glue_dir); @@ -654,17 +658,18 @@ static int device_add_class_symlinks(struct device *dev) if (!dev->class) return 0; - error = sysfs_create_link(&dev->kobj, &dev->class->subsys.kobj, + error = sysfs_create_link(&dev->kobj, + &dev->class->p->class_subsys.kobj, "subsystem"); if (error) goto out; #ifdef CONFIG_SYSFS_DEPRECATED /* stacked class devices need a symlink in the class directory */ - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->class_subsys.kobj && device_is_not_partition(dev)) { - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out_subsys; } @@ -701,13 +706,14 @@ out_device: if (dev->parent && device_is_not_partition(dev)) sysfs_remove_link(&dev->kobj, "device"); out_busid: - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->class_subsys.kobj && device_is_not_partition(dev)) - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, + dev->bus_id); #else /* link in the class directory pointing to the device */ - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out_subsys; @@ -720,7 +726,7 @@ out_busid: return 0; out_busid: - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id); #endif out_subsys: @@ -746,14 +752,15 @@ static void device_remove_class_symlinks(struct device *dev) sysfs_remove_link(&dev->kobj, "device"); } - if (dev->kobj.parent != &dev->class->subsys.kobj && + if (dev->kobj.parent != &dev->class->p->class_subsys.kobj && device_is_not_partition(dev)) - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, + dev->bus_id); #else if (dev->parent && device_is_not_partition(dev)) sysfs_remove_link(&dev->kobj, "device"); - sysfs_remove_link(&dev->class->subsys.kobj, dev->bus_id); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, dev->bus_id); #endif sysfs_remove_link(&dev->kobj, "subsystem"); @@ -776,6 +783,54 @@ int dev_set_name(struct device *dev, const char *fmt, ...) EXPORT_SYMBOL_GPL(dev_set_name); /** + * device_to_dev_kobj - select a /sys/dev/ directory for the device + * @dev: device + * + * By default we select char/ for new entries. Setting class->dev_obj + * to NULL prevents an entry from being created. class->dev_kobj must + * be set (or cleared) before any devices are registered to the class + * otherwise device_create_sys_dev_entry() and + * device_remove_sys_dev_entry() will disagree about the the presence + * of the link. + */ +static struct kobject *device_to_dev_kobj(struct device *dev) +{ + struct kobject *kobj; + + if (dev->class) + kobj = dev->class->dev_kobj; + else + kobj = sysfs_dev_char_kobj; + + return kobj; +} + +static int device_create_sys_dev_entry(struct device *dev) +{ + struct kobject *kobj = device_to_dev_kobj(dev); + int error = 0; + char devt_str[15]; + + if (kobj) { + format_dev_t(devt_str, dev->devt); + error = sysfs_create_link(kobj, &dev->kobj, devt_str); + } + + return error; +} + +static void device_remove_sys_dev_entry(struct device *dev) +{ + struct kobject *kobj = device_to_dev_kobj(dev); + char devt_str[15]; + + if (kobj) { + format_dev_t(devt_str, dev->devt); + sysfs_remove_link(kobj, devt_str); + } +} + +/** * device_add - add device to device hierarchy. * @dev: device. * @@ -829,6 +884,10 @@ int device_add(struct device *dev) error = device_create_file(dev, &devt_attr); if (error) goto ueventattrError; + + error = device_create_sys_dev_entry(dev); + if (error) + goto devtattrError; } error = device_add_class_symlinks(dev); @@ -849,15 +908,16 @@ int device_add(struct device *dev) klist_add_tail(&dev->knode_parent, &parent->klist_children); if (dev->class) { - down(&dev->class->sem); + mutex_lock(&dev->class->p->class_mutex); /* tie the class to the device */ - list_add_tail(&dev->node, &dev->class->devices); + list_add_tail(&dev->node, &dev->class->p->class_devices); /* notify any interfaces that the device is here */ - list_for_each_entry(class_intf, &dev->class->interfaces, node) + list_for_each_entry(class_intf, + &dev->class->p->class_interfaces, node) if (class_intf->add_dev) class_intf->add_dev(dev, class_intf); - up(&dev->class->sem); + mutex_unlock(&dev->class->p->class_mutex); } Done: put_device(dev); @@ -873,6 +933,9 @@ int device_add(struct device *dev) device_remove_class_symlinks(dev); SymlinkError: if (MAJOR(dev->devt)) + device_remove_sys_dev_entry(dev); + devtattrError: + if (MAJOR(dev->devt)) device_remove_file(dev, &devt_attr); ueventattrError: device_remove_file(dev, &uevent_attr); @@ -948,19 +1011,22 @@ void device_del(struct device *dev) device_pm_remove(dev); if (parent) klist_del(&dev->knode_parent); - if (MAJOR(dev->devt)) + if (MAJOR(dev->devt)) { + device_remove_sys_dev_entry(dev); device_remove_file(dev, &devt_attr); + } if (dev->class) { device_remove_class_symlinks(dev); - down(&dev->class->sem); + mutex_lock(&dev->class->p->class_mutex); /* notify any interfaces that the device is now gone */ - list_for_each_entry(class_intf, &dev->class->interfaces, node) + list_for_each_entry(class_intf, + &dev->class->p->class_interfaces, node) if (class_intf->remove_dev) class_intf->remove_dev(dev, class_intf); /* remove the device from the class list */ list_del_init(&dev->node); - up(&dev->class->sem); + mutex_unlock(&dev->class->p->class_mutex); } device_remove_file(dev, &uevent_attr); device_remove_attrs(dev); @@ -1074,7 +1140,25 @@ int __init devices_init(void) devices_kset = kset_create_and_add("devices", &device_uevent_ops, NULL); if (!devices_kset) return -ENOMEM; + dev_kobj = kobject_create_and_add("dev", NULL); + if (!dev_kobj) + goto dev_kobj_err; + sysfs_dev_block_kobj = kobject_create_and_add("block", dev_kobj); + if (!sysfs_dev_block_kobj) + goto block_kobj_err; + sysfs_dev_char_kobj = kobject_create_and_add("char", dev_kobj); + if (!sysfs_dev_char_kobj) + goto char_kobj_err; + return 0; + + char_kobj_err: + kobject_put(sysfs_dev_block_kobj); + block_kobj_err: + kobject_put(dev_kobj); + dev_kobj_err: + kset_unregister(devices_kset); + return -ENOMEM; } EXPORT_SYMBOL_GPL(device_for_each_child); @@ -1158,48 +1242,11 @@ error: EXPORT_SYMBOL_GPL(device_create_vargs); /** - * device_create_drvdata - creates a device and registers it with sysfs - * @class: pointer to the struct class that this device should be registered to - * @parent: pointer to the parent struct device of this new device, if any - * @devt: the dev_t for the char device to be added - * @drvdata: the data to be added to the device for callbacks - * @fmt: string for the device's name - * - * This function can be used by char device classes. A struct device - * will be created in sysfs, registered to the specified class. - * - * A "dev" file will be created, showing the dev_t for the device, if - * the dev_t is not 0,0. - * If a pointer to a parent struct device is passed in, the newly created - * struct device will be a child of that device in sysfs. - * The pointer to the struct device will be returned from the call. - * Any further sysfs files that might be required can be created using this - * pointer. - * - * Note: the struct class passed to this function must have previously - * been created with a call to class_create(). - */ -struct device *device_create_drvdata(struct class *class, - struct device *parent, - dev_t devt, - void *drvdata, - const char *fmt, ...) -{ - va_list vargs; - struct device *dev; - - va_start(vargs, fmt); - dev = device_create_vargs(class, parent, devt, drvdata, fmt, vargs); - va_end(vargs); - return dev; -} -EXPORT_SYMBOL_GPL(device_create_drvdata); - -/** * device_create - creates a device and registers it with sysfs * @class: pointer to the struct class that this device should be registered to * @parent: pointer to the parent struct device of this new device, if any * @devt: the dev_t for the char device to be added + * @drvdata: the data to be added to the device for callbacks * @fmt: string for the device's name * * This function can be used by char device classes. A struct device @@ -1217,13 +1264,13 @@ EXPORT_SYMBOL_GPL(device_create_drvdata); * been created with a call to class_create(). */ struct device *device_create(struct class *class, struct device *parent, - dev_t devt, const char *fmt, ...) + dev_t devt, void *drvdata, const char *fmt, ...) { va_list vargs; struct device *dev; va_start(vargs, fmt); - dev = device_create_vargs(class, parent, devt, NULL, fmt, vargs); + dev = device_create_vargs(class, parent, devt, drvdata, fmt, vargs); va_end(vargs); return dev; } @@ -1248,7 +1295,7 @@ void device_destroy(struct class *class, dev_t devt) { struct device *dev; - dev = class_find_device(class, &devt, __match_devt); + dev = class_find_device(class, NULL, &devt, __match_devt); if (dev) { put_device(dev); device_unregister(dev); @@ -1298,8 +1345,9 @@ int device_rename(struct device *dev, char *new_name) if (old_class_name) { new_class_name = make_class_name(dev->class->name, &dev->kobj); if (new_class_name) { - error = sysfs_create_link(&dev->parent->kobj, - &dev->kobj, new_class_name); + error = sysfs_create_link_nowarn(&dev->parent->kobj, + &dev->kobj, + new_class_name); if (error) goto out; sysfs_remove_link(&dev->parent->kobj, old_class_name); @@ -1307,11 +1355,12 @@ int device_rename(struct device *dev, char *new_name) } #else if (dev->class) { - error = sysfs_create_link(&dev->class->subsys.kobj, &dev->kobj, - dev->bus_id); + error = sysfs_create_link_nowarn(&dev->class->p->class_subsys.kobj, + &dev->kobj, dev->bus_id); if (error) goto out; - sysfs_remove_link(&dev->class->subsys.kobj, old_device_name); + sysfs_remove_link(&dev->class->p->class_subsys.kobj, + old_device_name); } #endif @@ -1447,4 +1496,7 @@ void device_shutdown(void) dev->driver->shutdown(dev); } } + kobject_put(sysfs_dev_char_kobj); + kobject_put(sysfs_dev_block_kobj); + kobject_put(dev_kobj); } diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index e38dfed41d8..20537d50790 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -21,15 +21,16 @@ EXPORT_SYMBOL(cpu_sysdev_class); static DEFINE_PER_CPU(struct sys_device *, cpu_sys_devices); #ifdef CONFIG_HOTPLUG_CPU -static ssize_t show_online(struct sys_device *dev, char *buf) +static ssize_t show_online(struct sys_device *dev, struct sysdev_attribute *attr, + char *buf) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); return sprintf(buf, "%u\n", !!cpu_online(cpu->sysdev.id)); } -static ssize_t __ref store_online(struct sys_device *dev, const char *buf, - size_t count) +static ssize_t __ref store_online(struct sys_device *dev, struct sysdev_attribute *attr, + const char *buf, size_t count) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); ssize_t ret; @@ -80,7 +81,8 @@ static inline void register_cpu_control(struct cpu *cpu) #ifdef CONFIG_KEXEC #include <linux/kexec.h> -static ssize_t show_crash_notes(struct sys_device *dev, char *buf) +static ssize_t show_crash_notes(struct sys_device *dev, struct sysdev_attribute *attr, + char *buf) { struct cpu *cpu = container_of(dev, struct cpu, sysdev); ssize_t rc; diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 937e8258981..4d4e0e7b6e9 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -92,7 +92,8 @@ unregister_memory(struct memory_block *memory, struct mem_section *section) * uses. */ -static ssize_t show_mem_phys_index(struct sys_device *dev, char *buf) +static ssize_t show_mem_phys_index(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); @@ -102,7 +103,8 @@ static ssize_t show_mem_phys_index(struct sys_device *dev, char *buf) /* * online, offline, going offline, etc. */ -static ssize_t show_mem_state(struct sys_device *dev, char *buf) +static ssize_t show_mem_state(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); @@ -217,7 +219,8 @@ out: } static ssize_t -store_mem_state(struct sys_device *dev, const char *buf, size_t count) +store_mem_state(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { struct memory_block *mem; unsigned int phys_section_nr; @@ -248,7 +251,8 @@ out: * s.t. if I offline all of these sections I can then * remove the physical device? */ -static ssize_t show_phys_device(struct sys_device *dev, char *buf) +static ssize_t show_phys_device(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { struct memory_block *mem = container_of(dev, struct memory_block, sysdev); diff --git a/drivers/base/node.c b/drivers/base/node.c index 0f867a08333..5116b78c632 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -36,11 +36,13 @@ static ssize_t node_read_cpumap(struct sys_device *dev, int type, char *buf) return len; } -static inline ssize_t node_read_cpumask(struct sys_device *dev, char *buf) +static inline ssize_t node_read_cpumask(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { return node_read_cpumap(dev, 0, buf); } -static inline ssize_t node_read_cpulist(struct sys_device *dev, char *buf) +static inline ssize_t node_read_cpulist(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { return node_read_cpumap(dev, 1, buf); } @@ -49,7 +51,8 @@ static SYSDEV_ATTR(cpumap, S_IRUGO, node_read_cpumask, NULL); static SYSDEV_ATTR(cpulist, S_IRUGO, node_read_cpulist, NULL); #define K(x) ((x) << (PAGE_SHIFT - 10)) -static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) +static ssize_t node_read_meminfo(struct sys_device * dev, + struct sysdev_attribute *attr, char * buf) { int n; int nid = dev->id; @@ -112,7 +115,8 @@ static ssize_t node_read_meminfo(struct sys_device * dev, char * buf) #undef K static SYSDEV_ATTR(meminfo, S_IRUGO, node_read_meminfo, NULL); -static ssize_t node_read_numastat(struct sys_device * dev, char * buf) +static ssize_t node_read_numastat(struct sys_device * dev, + struct sysdev_attribute *attr, char * buf) { return sprintf(buf, "numa_hit %lu\n" @@ -130,7 +134,8 @@ static ssize_t node_read_numastat(struct sys_device * dev, char * buf) } static SYSDEV_ATTR(numastat, S_IRUGO, node_read_numastat, NULL); -static ssize_t node_read_distance(struct sys_device * dev, char * buf) +static ssize_t node_read_distance(struct sys_device * dev, + struct sysdev_attribute *attr, char * buf) { int nid = dev->id; int len = 0; diff --git a/drivers/base/power/trace.c b/drivers/base/power/trace.c index 9b1b20b59e0..2aa6e8fc4de 100644 --- a/drivers/base/power/trace.c +++ b/drivers/base/power/trace.c @@ -194,7 +194,7 @@ static int show_dev_hash(unsigned int value) struct device * dev = to_device(entry); unsigned int hash = hash_string(DEVSEED, dev->bus_id, DEVHASH); if (hash == value) { - printk(" hash matches device %s\n", dev->bus_id); + dev_info(dev, "hash matches\n"); match++; } entry = entry->prev; diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 358bb0be3c0..40fc14f0354 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -36,7 +36,7 @@ sysdev_show(struct kobject * kobj, struct attribute * attr, char * buffer) struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr); if (sysdev_attr->show) - return sysdev_attr->show(sysdev, buffer); + return sysdev_attr->show(sysdev, sysdev_attr, buffer); return -EIO; } @@ -49,7 +49,7 @@ sysdev_store(struct kobject * kobj, struct attribute * attr, struct sysdev_attribute * sysdev_attr = to_sysdev_attr(attr); if (sysdev_attr->store) - return sysdev_attr->store(sysdev, buffer, count); + return sysdev_attr->store(sysdev, sysdev_attr, buffer, count); return -EIO; } @@ -130,8 +130,8 @@ static struct kset *system_kset; int sysdev_class_register(struct sysdev_class * cls) { - pr_debug("Registering sysdev class '%s'\n", - kobject_name(&cls->kset.kobj)); + pr_debug("Registering sysdev class '%s'\n", cls->name); + INIT_LIST_HEAD(&cls->drivers); memset(&cls->kset.kobj, 0x00, sizeof(struct kobject)); cls->kset.kobj.parent = &system_kset->kobj; @@ -241,7 +241,8 @@ int sysdev_register(struct sys_device * sysdev) if (!cls) return -EINVAL; - pr_debug("Registering sys device '%s'\n", kobject_name(&sysdev->kobj)); + pr_debug("Registering sys device of class '%s'\n", + kobject_name(&cls->kset.kobj)); /* initialize the kobject to 0, in case it had previously been used */ memset(&sysdev->kobj, 0x00, sizeof(struct kobject)); @@ -257,6 +258,9 @@ int sysdev_register(struct sys_device * sysdev) if (!error) { struct sysdev_driver * drv; + pr_debug("Registering sys device '%s'\n", + kobject_name(&sysdev->kobj)); + mutex_lock(&sysdev_drivers_lock); /* Generic notification is implicit, because it's that * code that should have called us. @@ -269,6 +273,7 @@ int sysdev_register(struct sys_device * sysdev) } mutex_unlock(&sysdev_drivers_lock); } + kobject_uevent(&sysdev->kobj, KOBJ_ADD); return error; } @@ -474,3 +479,52 @@ int __init system_bus_init(void) EXPORT_SYMBOL_GPL(sysdev_register); EXPORT_SYMBOL_GPL(sysdev_unregister); + +#define to_ext_attr(x) container_of(x, struct sysdev_ext_attribute, attr) + +ssize_t sysdev_store_ulong(struct sys_device *sysdev, + struct sysdev_attribute *attr, + const char *buf, size_t size) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + char *end; + unsigned long new = simple_strtoul(buf, &end, 0); + if (end == buf) + return -EINVAL; + *(unsigned long *)(ea->var) = new; + return end - buf; +} +EXPORT_SYMBOL_GPL(sysdev_store_ulong); + +ssize_t sysdev_show_ulong(struct sys_device *sysdev, + struct sysdev_attribute *attr, + char *buf) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + return snprintf(buf, PAGE_SIZE, "%lx\n", *(unsigned long *)(ea->var)); +} +EXPORT_SYMBOL_GPL(sysdev_show_ulong); + +ssize_t sysdev_store_int(struct sys_device *sysdev, + struct sysdev_attribute *attr, + const char *buf, size_t size) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + char *end; + long new = simple_strtol(buf, &end, 0); + if (end == buf || new > INT_MAX || new < INT_MIN) + return -EINVAL; + *(int *)(ea->var) = new; + return end - buf; +} +EXPORT_SYMBOL_GPL(sysdev_store_int); + +ssize_t sysdev_show_int(struct sys_device *sysdev, + struct sysdev_attribute *attr, + char *buf) +{ + struct sysdev_ext_attribute *ea = to_ext_attr(attr); + return snprintf(buf, PAGE_SIZE, "%d\n", *(int *)(ea->var)); +} +EXPORT_SYMBOL_GPL(sysdev_show_int); + diff --git a/drivers/base/topology.c b/drivers/base/topology.c index 3f6d9b0a6ab..199cd97e32e 100644 --- a/drivers/base/topology.c +++ b/drivers/base/topology.c @@ -34,7 +34,8 @@ static SYSDEV_ATTR(_name, 0444, show_##_name, NULL) #define define_id_show_func(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ unsigned int cpu = dev->id; \ return sprintf(buf, "%d\n", topology_##name(cpu)); \ @@ -59,14 +60,17 @@ static ssize_t show_cpumap(int type, cpumask_t *mask, char *buf) #ifdef arch_provides_topology_pointers #define define_siblings_show_map(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ unsigned int cpu = dev->id; \ return show_cpumap(0, &(topology_##name(cpu)), buf); \ } #define define_siblings_show_list(name) \ -static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +static ssize_t show_##name##_list(struct sys_device *dev, \ + struct sysdev_attribute *attr, \ + char *buf) \ { \ unsigned int cpu = dev->id; \ return show_cpumap(1, &(topology_##name(cpu)), buf); \ @@ -74,7 +78,8 @@ static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ #else #define define_siblings_show_map(name) \ -static ssize_t show_##name(struct sys_device *dev, char *buf) \ +static ssize_t show_##name(struct sys_device *dev, \ + struct sysdev_attribute *attr, char *buf) \ { \ unsigned int cpu = dev->id; \ cpumask_t mask = topology_##name(cpu); \ @@ -82,7 +87,9 @@ static ssize_t show_##name(struct sys_device *dev, char *buf) \ } #define define_siblings_show_list(name) \ -static ssize_t show_##name##_list(struct sys_device *dev, char *buf) \ +static ssize_t show_##name##_list(struct sys_device *dev, \ + struct sysdev_attribute *attr, \ + char *buf) \ { \ unsigned int cpu = dev->id; \ cpumask_t mask = topology_##name(cpu); \ diff --git a/drivers/block/aoe/aoechr.c b/drivers/block/aoe/aoechr.c index d1de68a3192..c04440cd6a3 100644 --- a/drivers/block/aoe/aoechr.c +++ b/drivers/block/aoe/aoechr.c @@ -277,8 +277,9 @@ aoechr_init(void) return PTR_ERR(aoe_class); } for (i = 0; i < ARRAY_SIZE(chardevs); ++i) - device_create(aoe_class, NULL, - MKDEV(AOE_MAJOR, chardevs[i].minor), chardevs[i].name); + device_create_drvdata(aoe_class, NULL, + MKDEV(AOE_MAJOR, chardevs[i].minor), + NULL, chardevs[i].name); return 0; } diff --git a/drivers/block/paride/pg.c b/drivers/block/paride/pg.c index 9d92636350e..d731ca42f80 100644 --- a/drivers/block/paride/pg.c +++ b/drivers/block/paride/pg.c @@ -686,8 +686,9 @@ static int __init pg_init(void) for (unit = 0; unit < PG_UNITS; unit++) { struct pg *dev = &devices[unit]; if (dev->present) - device_create(pg_class, NULL, MKDEV(major, unit), - "pg%u", unit); + device_create_drvdata(pg_class, NULL, + MKDEV(major, unit), NULL, + "pg%u", unit); } err = 0; goto out; diff --git a/drivers/block/paride/pt.c b/drivers/block/paride/pt.c index 5c74c3574a5..673b8b2fd33 100644 --- a/drivers/block/paride/pt.c +++ b/drivers/block/paride/pt.c @@ -979,10 +979,12 @@ static int __init pt_init(void) for (unit = 0; unit < PT_UNITS; unit++) if (pt[unit].present) { - device_create(pt_class, NULL, MKDEV(major, unit), - "pt%d", unit); - device_create(pt_class, NULL, MKDEV(major, unit + 128), - "pt%dn", unit); + device_create_drvdata(pt_class, NULL, + MKDEV(major, unit), NULL, + "pt%d", unit); + device_create_drvdata(pt_class, NULL, + MKDEV(major, unit + 128), NULL, + "pt%dn", unit); } goto out; diff --git a/drivers/block/pktcdvd.c b/drivers/block/pktcdvd.c index 45bee918c46..158eed4d516 100644 --- a/drivers/block/pktcdvd.c +++ b/drivers/block/pktcdvd.c @@ -303,7 +303,9 @@ static struct kobj_type kobj_pkt_type_wqueue = { static void pkt_sysfs_dev_new(struct pktcdvd_device *pd) { if (class_pktcdvd) { - pd->dev = device_create(class_pktcdvd, NULL, pd->pkt_dev, "%s", pd->name); + pd->dev = device_create_drvdata(class_pktcdvd, NULL, + pd->pkt_dev, NULL, + "%s", pd->name); if (IS_ERR(pd->dev)) pd->dev = NULL; } diff --git a/drivers/char/dsp56k.c b/drivers/char/dsp56k.c index b9a30c30e2b..33c466a4888 100644 --- a/drivers/char/dsp56k.c +++ b/drivers/char/dsp56k.c @@ -500,7 +500,8 @@ static int __init dsp56k_init_driver(void) err = PTR_ERR(dsp56k_class); goto out_chrdev; } - device_create(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), "dsp56k"); + device_create_drvdata(dsp56k_class, NULL, MKDEV(DSP56K_MAJOR, 0), + NULL, "dsp56k"); printk(banner); goto out; diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c index 5dc74404058..9cb48fcd316 100644 --- a/drivers/char/ip2/ip2main.c +++ b/drivers/char/ip2/ip2main.c @@ -718,12 +718,12 @@ ip2_loadmain(int *iop, int *irqp) } if ( NULL != ( pB = i2BoardPtrTable[i] ) ) { - device_create(ip2_class, NULL, - MKDEV(IP2_IPL_MAJOR, 4 * i), - "ipl%d", i); - device_create(ip2_class, NULL, - MKDEV(IP2_IPL_MAJOR, 4 * i + 1), - "stat%d", i); + device_create_drvdata(ip2_class, NULL, + MKDEV(IP2_IPL_MAJOR, 4 * i), + NULL, "ipl%d", i); + device_create_drvdata(ip2_class, NULL, + MKDEV(IP2_IPL_MAJOR, 4 * i + 1), + NULL, "stat%d", i); for ( box = 0; box < ABS_MAX_BOXES; ++box ) { diff --git a/drivers/char/ipmi/ipmi_devintf.c b/drivers/char/ipmi/ipmi_devintf.c index c11a4048345..64e1c169e82 100644 --- a/drivers/char/ipmi/ipmi_devintf.c +++ b/drivers/char/ipmi/ipmi_devintf.c @@ -871,7 +871,7 @@ static void ipmi_new_smi(int if_num, struct device *device) entry->dev = dev; mutex_lock(®_list_mutex); - device_create(ipmi_class, device, dev, "ipmi%d", if_num); + device_create_drvdata(ipmi_class, device, dev, NULL, "ipmi%d", if_num); list_add(&entry->link, ®_list); mutex_unlock(®_list_mutex); } diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c index f9ebcd41d8e..843a2afaf20 100644 --- a/drivers/char/istallion.c +++ b/drivers/char/istallion.c @@ -4599,8 +4599,9 @@ static int __init istallion_module_init(void) istallion_class = class_create(THIS_MODULE, "staliomem"); for (i = 0; i < 4; i++) - device_create(istallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), - "staliomem%d", i); + device_create_drvdata(istallion_class, NULL, + MKDEV(STL_SIOMEMMAJOR, i), + NULL, "staliomem%d", i); return 0; err_deinit: diff --git a/drivers/char/lp.c b/drivers/char/lp.c index 71abb4c33aa..3f2719b9f77 100644 --- a/drivers/char/lp.c +++ b/drivers/char/lp.c @@ -813,7 +813,8 @@ static int lp_register(int nr, struct parport *port) if (reset) lp_reset(nr); - device_create(lp_class, port->dev, MKDEV(LP_MAJOR, nr), "lp%d", nr); + device_create_drvdata(lp_class, port->dev, MKDEV(LP_MAJOR, nr), NULL, + "lp%d", nr); printk(KERN_INFO "lp%d: using %s (%s).\n", nr, port->name, (port->irq == PARPORT_IRQ_NONE)?"polling":"interrupt-driven"); diff --git a/drivers/char/mem.c b/drivers/char/mem.c index b6772d65754..c2dba82eb5f 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -989,9 +989,9 @@ static int __init chr_dev_init(void) mem_class = class_create(THIS_MODULE, "mem"); for (i = 0; i < ARRAY_SIZE(devlist); i++) - device_create(mem_class, NULL, - MKDEV(MEM_MAJOR, devlist[i].minor), - devlist[i].name); + device_create_drvdata(mem_class, NULL, + MKDEV(MEM_MAJOR, devlist[i].minor), + NULL, devlist[i].name); return 0; } diff --git a/drivers/char/misc.c b/drivers/char/misc.c index 6e1563c3d30..999aa779c08 100644 --- a/drivers/char/misc.c +++ b/drivers/char/misc.c @@ -217,8 +217,8 @@ int misc_register(struct miscdevice * misc) misc_minors[misc->minor >> 3] |= 1 << (misc->minor & 7); dev = MKDEV(MISC_MAJOR, misc->minor); - misc->this_device = device_create(misc_class, misc->parent, dev, - "%s", misc->name); + misc->this_device = device_create_drvdata(misc_class, misc->parent, + dev, NULL, "%s", misc->name); if (IS_ERR(misc->this_device)) { err = PTR_ERR(misc->this_device); goto out; diff --git a/drivers/char/pcmcia/cm4000_cs.c b/drivers/char/pcmcia/cm4000_cs.c index e4a4fbd37d7..f070ae7bd91 100644 --- a/drivers/char/pcmcia/cm4000_cs.c +++ b/drivers/char/pcmcia/cm4000_cs.c @@ -1896,7 +1896,7 @@ static int cm4000_probe(struct pcmcia_device *link) return ret; } - device_create(cmm_class, NULL, MKDEV(major, i), "cmm%d", i); + device_create_drvdata(cmm_class, NULL, MKDEV(major, i), NULL, "cmm%d", i); return 0; } diff --git a/drivers/char/pcmcia/cm4040_cs.c b/drivers/char/pcmcia/cm4040_cs.c index 6181f8a9b0b..0b5934bef7a 100644 --- a/drivers/char/pcmcia/cm4040_cs.c +++ b/drivers/char/pcmcia/cm4040_cs.c @@ -653,7 +653,8 @@ static int reader_probe(struct pcmcia_device *link) return ret; } - device_create(cmx_class, NULL, MKDEV(major, i), "cmx%d", i); + device_create_drvdata(cmx_class, NULL, MKDEV(major, i), NULL, + "cmx%d", i); return 0; } diff --git a/drivers/char/ppdev.c b/drivers/char/ppdev.c index f6e6acadd9a..7af7a7e6b9c 100644 --- a/drivers/char/ppdev.c +++ b/drivers/char/ppdev.c @@ -752,8 +752,9 @@ static const struct file_operations pp_fops = { static void pp_attach(struct parport *port) { - device_create(ppdev_class, port->dev, MKDEV(PP_MAJOR, port->number), - "parport%d", port->number); + device_create_drvdata(ppdev_class, port->dev, + MKDEV(PP_MAJOR, port->number), + NULL, "parport%d", port->number); } static void pp_detach(struct parport *port) diff --git a/drivers/char/raw.c b/drivers/char/raw.c index 505fcbe884a..47b8cf281d4 100644 --- a/drivers/char/raw.c +++ b/drivers/char/raw.c @@ -131,8 +131,8 @@ raw_ioctl(struct inode *inode, struct file *filp, static void bind_device(struct raw_config_request *rq) { device_destroy(raw_class, MKDEV(RAW_MAJOR, rq->raw_minor)); - device_create(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor), - "raw%d", rq->raw_minor); + device_create_drvdata(raw_class, NULL, MKDEV(RAW_MAJOR, rq->raw_minor), + NULL, "raw%d", rq->raw_minor); } /* @@ -283,7 +283,8 @@ static int __init raw_init(void) ret = PTR_ERR(raw_class); goto error_region; } - device_create(raw_class, NULL, MKDEV(RAW_MAJOR, 0), "rawctl"); + device_create_drvdata(raw_class, NULL, MKDEV(RAW_MAJOR, 0), NULL, + "rawctl"); return 0; diff --git a/drivers/char/snsc.c b/drivers/char/snsc.c index 0b799ac1b04..3ce60df14c0 100644 --- a/drivers/char/snsc.c +++ b/drivers/char/snsc.c @@ -444,7 +444,8 @@ scdrv_init(void) continue; } - device_create(snsc_class, NULL, dev, "%s", devname); + device_create_drvdata(snsc_class, NULL, dev, NULL, + "%s", devname); ia64_sn_irtr_intr_enable(scd->scd_nasid, 0 /*ignored */ , diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c index de5a725c3cc..b976248e107 100644 --- a/drivers/char/stallion.c +++ b/drivers/char/stallion.c @@ -4755,8 +4755,8 @@ static int __init stallion_module_init(void) if (IS_ERR(stallion_class)) printk("STALLION: failed to create class\n"); for (i = 0; i < 4; i++) - device_create(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), - "staliomem%d", i); + device_create_drvdata(stallion_class, NULL, MKDEV(STL_SIOMEMMAJOR, i), + NULL, "staliomem%d", i); return 0; err_unrtty: diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c index d94cd8410c5..15e597d0300 100644 --- a/drivers/char/tty_io.c +++ b/drivers/char/tty_io.c @@ -3412,7 +3412,7 @@ struct device *tty_register_device(struct tty_driver *driver, unsigned index, else tty_line_name(driver, index, name); - return device_create(tty_class, device, dev, name); + return device_create_drvdata(tty_class, device, dev, NULL, name); } /** @@ -3690,20 +3690,22 @@ static int __init tty_init(void) if (cdev_add(&tty_cdev, MKDEV(TTYAUX_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 0), 1, "/dev/tty") < 0) panic("Couldn't register /dev/tty driver\n"); - device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), "tty"); + device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 0), NULL, + "tty"); cdev_init(&console_cdev, &console_fops); if (cdev_add(&console_cdev, MKDEV(TTYAUX_MAJOR, 1), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 1), 1, "/dev/console") < 0) panic("Couldn't register /dev/console driver\n"); - device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), "console"); + device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 1), NULL, + "console"); #ifdef CONFIG_UNIX98_PTYS cdev_init(&ptmx_cdev, &ptmx_fops); if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) || register_chrdev_region(MKDEV(TTYAUX_MAJOR, 2), 1, "/dev/ptmx") < 0) panic("Couldn't register /dev/ptmx driver\n"); - device_create(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), "ptmx"); + device_create_drvdata(tty_class, NULL, MKDEV(TTYAUX_MAJOR, 2), NULL, "ptmx"); #endif #ifdef CONFIG_VT @@ -3711,7 +3713,7 @@ static int __init tty_init(void) if (cdev_add(&vc0_cdev, MKDEV(TTY_MAJOR, 0), 1) || register_chrdev_region(MKDEV(TTY_MAJOR, 0), 1, "/dev/vc/0") < 0) panic("Couldn't register /dev/tty0 driver\n"); - device_create(tty_class, NULL, MKDEV(TTY_MAJOR, 0), "tty0"); + device_create_drvdata(tty_class, NULL, MKDEV(TTY_MAJOR, 0), NULL, "tty0"); vty_init(); #endif diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c index eebfad2777d..c2ae52dd53d 100644 --- a/drivers/char/vc_screen.c +++ b/drivers/char/vc_screen.c @@ -481,10 +481,10 @@ static struct class *vc_class; void vcs_make_sysfs(struct tty_struct *tty) { - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), - "vcs%u", tty->index + 1); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), - "vcsa%u", tty->index + 1); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), + NULL, "vcs%u", tty->index + 1); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), + NULL, "vcsa%u", tty->index + 1); } void vcs_remove_sysfs(struct tty_struct *tty) @@ -499,7 +499,7 @@ int __init vcs_init(void) panic("unable to get major %d for vcs device", VCS_MAJOR); vc_class = class_create(THIS_MODULE, "vc"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 0), "vcs"); - device_create(vc_class, NULL, MKDEV(VCS_MAJOR, 128), "vcsa"); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, 0), NULL, "vcs"); + device_create_drvdata(vc_class, NULL, MKDEV(VCS_MAJOR, 128), NULL, "vcsa"); return 0; } diff --git a/drivers/char/viotape.c b/drivers/char/viotape.c index e5da98d8f9c..7a70a40ad63 100644 --- a/drivers/char/viotape.c +++ b/drivers/char/viotape.c @@ -886,10 +886,10 @@ static int viotape_probe(struct vio_dev *vdev, const struct vio_device_id *id) state[i].cur_part = 0; for (j = 0; j < MAX_PARTITIONS; ++j) state[i].part_stat_rwi[j] = VIOT_IDLE; - device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i), - "iseries!vt%d", i); - device_create(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), - "iseries!nvt%d", i); + device_create_drvdata(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i), + NULL, "iseries!vt%d", i); + device_create_drvdata(tape_class, NULL, MKDEV(VIOTAPE_MAJOR, i | 0x80), + NULL, "iseries!nvt%d", i); printk(VIOTAPE_KERN_INFO "tape iseries/vt%d is iSeries " "resource %10.10s type %4.4s, model %3.3s\n", i, viotape_unitinfo[i].rsrcname, diff --git a/drivers/char/vt.c b/drivers/char/vt.c index 935f1c207a1..e32a076d5f1 100644 --- a/drivers/char/vt.c +++ b/drivers/char/vt.c @@ -3425,9 +3425,10 @@ int register_con_driver(const struct consw *csw, int first, int last) if (retval) goto err; - con_driver->dev = device_create(vtconsole_class, NULL, - MKDEV(0, con_driver->node), - "vtcon%i", con_driver->node); + con_driver->dev = device_create_drvdata(vtconsole_class, NULL, + MKDEV(0, con_driver->node), + NULL, "vtcon%i", + con_driver->node); if (IS_ERR(con_driver->dev)) { printk(KERN_WARNING "Unable to create device for %s; " @@ -3535,9 +3536,10 @@ static int __init vtconsole_class_init(void) struct con_driver *con = ®istered_con_driver[i]; if (con->con && !con->dev) { - con->dev = device_create(vtconsole_class, NULL, - MKDEV(0, con->node), - "vtcon%i", con->node); + con->dev = device_create_drvdata(vtconsole_class, NULL, + MKDEV(0, con->node), + NULL, "vtcon%i", + con->node); if (IS_ERR(con->dev)) { printk(KERN_WARNING "Unable to create " diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c index 1e1b81e57cd..51966ccf4ea 100644 --- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c +++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c @@ -658,8 +658,9 @@ static int __devinit hwicap_setup(struct device *dev, int id, dev_err(dev, "cdev_add() failed\n"); goto failed3; } - /* devfs_mk_cdev(devt, S_IFCHR|S_IRUGO|S_IWUGO, DRIVER_NAME); */ - device_create(icap_class, dev, devt, "%s%d", DRIVER_NAME, id); + + device_create_drvdata(icap_class, dev, devt, NULL, + "%s%d", DRIVER_NAME, id); return 0; /* success */ failed3: diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c index e949618b9be..31a0e0b455b 100644 --- a/drivers/cpuidle/sysfs.c +++ b/drivers/cpuidle/sysfs.c @@ -21,7 +21,8 @@ static int __init cpuidle_sysfs_setup(char *unused) } __setup("cpuidle_sysfs_switch", cpuidle_sysfs_setup); -static ssize_t show_available_governors(struct sys_device *dev, char *buf) +static ssize_t show_available_governors(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t i = 0; struct cpuidle_governor *tmp; @@ -39,7 +40,8 @@ out: return i; } -static ssize_t show_current_driver(struct sys_device *dev, char *buf) +static ssize_t show_current_driver(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t ret; @@ -53,7 +55,8 @@ static ssize_t show_current_driver(struct sys_device *dev, char *buf) return ret; } -static ssize_t show_current_governor(struct sys_device *dev, char *buf) +static ssize_t show_current_governor(struct sys_device *dev, + struct sysdev_attribute *attr, char *buf) { ssize_t ret; @@ -68,6 +71,7 @@ static ssize_t show_current_governor(struct sys_device *dev, char *buf) } static ssize_t store_current_governor(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { char gov_name[CPUIDLE_NAME_LEN]; diff --git a/drivers/dca/dca-sysfs.c b/drivers/dca/dca-sysfs.c index 011328faa5f..9a70377bfb3 100644 --- a/drivers/dca/dca-sysfs.c +++ b/drivers/dca/dca-sysfs.c @@ -14,8 +14,9 @@ int dca_sysfs_add_req(struct dca_provider *dca, struct device *dev, int slot) { struct device *cd; - cd = device_create(dca_class, dca->cd, MKDEV(0, slot + 1), - "requester%d", slot); + cd = device_create_drvdata(dca_class, dca->cd, + MKDEV(0, slot + 1), NULL, + "requester%d", slot); if (IS_ERR(cd)) return PTR_ERR(cd); return 0; @@ -46,7 +47,8 @@ idr_try_again: return err; } - cd = device_create(dca_class, dev, MKDEV(0, 0), "dca%d", dca->id); + cd = device_create_drvdata(dca_class, dev, MKDEV(0, 0), NULL, + "dca%d", dca->id); if (IS_ERR(cd)) { spin_lock(&dca_idr_lock); idr_remove(&dca_idr, dca->id); diff --git a/drivers/eisa/Makefile b/drivers/eisa/Makefile index 70abf93fe6b..5369ce957c6 100644 --- a/drivers/eisa/Makefile +++ b/drivers/eisa/Makefile @@ -9,7 +9,7 @@ obj-${CONFIG_EISA_VIRTUAL_ROOT} += virtual_root.o # Ugly hack to get DEVICE_NAME_SIZE value... -DEVICE_NAME_SIZE =$(shell awk '$$1=="\#define" && $$2=="DEVICE_NAME_SIZE" {print $$3-1}' $(srctree)/include/linux/device.h) +DEVICE_NAME_SIZE = 50 $(obj)/eisa-bus.o: $(obj)/devlist.h diff --git a/drivers/eisa/eisa-bus.c b/drivers/eisa/eisa-bus.c index 65dcf043265..c950bf8606d 100644 --- a/drivers/eisa/eisa-bus.c +++ b/drivers/eisa/eisa-bus.c @@ -22,7 +22,7 @@ struct eisa_device_info { struct eisa_device_id id; - char name[DEVICE_NAME_SIZE]; + char name[50]; }; #ifdef CONFIG_EISA_NAMES @@ -63,7 +63,7 @@ static void __init eisa_name_device (struct eisa_device *edev) if (!strcmp (edev->id.sig, eisa_table[i].id.sig)) { strlcpy (edev->pretty_name, eisa_table[i].name, - DEVICE_NAME_SIZE); + sizeof(edev->pretty_name)); return; } } diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index 2fde6c63f47..0c6b4d4e7e2 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -322,8 +322,9 @@ int hidraw_connect(struct hid_device *hid) goto out; } - dev->dev = device_create(hidraw_class, NULL, MKDEV(hidraw_major, minor), - "%s%d", "hidraw", minor); + dev->dev = device_create_drvdata(hidraw_class, NULL, + MKDEV(hidraw_major, minor), NULL, + "%s%d", "hidraw", minor); if (IS_ERR(dev->dev)) { spin_lock(&minors_lock); diff --git a/drivers/hwmon/hwmon.c b/drivers/hwmon/hwmon.c index 3db28450a3b..7321a88a511 100644 --- a/drivers/hwmon/hwmon.c +++ b/drivers/hwmon/hwmon.c @@ -55,7 +55,8 @@ again: return ERR_PTR(err); id = id & MAX_ID_MASK; - hwdev = device_create(hwmon_class, dev, MKDEV(0,0), HWMON_ID_FORMAT, id); + hwdev = device_create_drvdata(hwmon_class, dev, MKDEV(0, 0), NULL, + HWMON_ID_FORMAT, id); if (IS_ERR(hwdev)) { spin_lock(&idr_lock); diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 7608df83d6d..7bf38c41808 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -722,7 +722,8 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver) INIT_LIST_HEAD(&driver->clients); /* Walk the adapters that are already present */ - class_for_each_device(&i2c_adapter_class, driver, __attach_adapter); + class_for_each_device(&i2c_adapter_class, NULL, driver, + __attach_adapter); mutex_unlock(&core_lock); return 0; @@ -782,7 +783,8 @@ void i2c_del_driver(struct i2c_driver *driver) { mutex_lock(&core_lock); - class_for_each_device(&i2c_adapter_class, driver, __detach_adapter); + class_for_each_device(&i2c_adapter_class, NULL, driver, + __detach_adapter); driver_unregister(&driver->driver); pr_debug("i2c-core: driver [%s] unregistered\n", driver->driver.name); diff --git a/drivers/i2c/i2c-dev.c b/drivers/i2c/i2c-dev.c index 86727fa8858..9d55c6383b2 100644 --- a/drivers/i2c/i2c-dev.c +++ b/drivers/i2c/i2c-dev.c @@ -521,9 +521,9 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap) return PTR_ERR(i2c_dev); /* register this i2c device with the driver core */ - i2c_dev->dev = device_create(i2c_dev_class, &adap->dev, - MKDEV(I2C_MAJOR, adap->nr), - "i2c-%d", adap->nr); + i2c_dev->dev = device_create_drvdata(i2c_dev_class, &adap->dev, + MKDEV(I2C_MAJOR, adap->nr), + NULL, "i2c-%d", adap->nr); if (IS_ERR(i2c_dev->dev)) { res = PTR_ERR(i2c_dev->dev); goto error; diff --git a/drivers/ide/ide-tape.c b/drivers/ide/ide-tape.c index b711ab96e28..353dd11b928 100644 --- a/drivers/ide/ide-tape.c +++ b/drivers/ide/ide-tape.c @@ -2697,10 +2697,12 @@ static int ide_tape_probe(ide_drive_t *drive) idetape_setup(drive, tape, minor); - device_create(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor), "%s", tape->name); - device_create(idetape_sysfs_class, &drive->gendev, - MKDEV(IDETAPE_MAJOR, minor + 128), "n%s", tape->name); + device_create_drvdata(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor), NULL, + "%s", tape->name); + device_create_drvdata(idetape_sysfs_class, &drive->gendev, + MKDEV(IDETAPE_MAJOR, minor + 128), NULL, + "n%s", tape->name); g->fops = &idetape_block_ops; ide_register_region(g); diff --git a/drivers/ieee1394/dv1394.c b/drivers/ieee1394/dv1394.c index 9d19aec5820..b6eb2cf2591 100644 --- a/drivers/ieee1394/dv1394.c +++ b/drivers/ieee1394/dv1394.c @@ -2296,9 +2296,10 @@ static void dv1394_add_host(struct hpsb_host *host) ohci = (struct ti_ohci *)host->hostdata; - device_create(hpsb_protocol_class, NULL, MKDEV( - IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), - "dv1394-%d", id); + device_create_drvdata(hpsb_protocol_class, NULL, + MKDEV(IEEE1394_MAJOR, + IEEE1394_MINOR_BLOCK_DV1394 * 16 + (id<<2)), NULL, + "dv1394-%d", id); dv1394_init(ohci, DV1394_NTSC, MODE_RECEIVE); dv1394_init(ohci, DV1394_NTSC, MODE_TRANSMIT); diff --git a/drivers/ieee1394/nodemgr.c b/drivers/ieee1394/nodemgr.c index 05710c7c122..994a21e5a0a 100644 --- a/drivers/ieee1394/nodemgr.c +++ b/drivers/ieee1394/nodemgr.c @@ -754,7 +754,8 @@ static void nodemgr_remove_uds(struct node_entry *ne) */ mutex_lock(&nodemgr_serialize_remove_uds); for (;;) { - dev = class_find_device(&nodemgr_ud_class, ne, __match_ne); + dev = class_find_device(&nodemgr_ud_class, NULL, ne, + __match_ne); if (!dev) break; ud = container_of(dev, struct unit_directory, unit_dev); @@ -901,7 +902,8 @@ static struct node_entry *find_entry_by_guid(u64 guid) struct device *dev; struct node_entry *ne; - dev = class_find_device(&nodemgr_ne_class, &guid, __match_ne_guid); + dev = class_find_device(&nodemgr_ne_class, NULL, &guid, + __match_ne_guid); if (!dev) return NULL; ne = container_of(dev, struct node_entry, node_dev); @@ -940,7 +942,8 @@ static struct node_entry *find_entry_by_nodeid(struct hpsb_host *host, param.host = host; param.nodeid = nodeid; - dev = class_find_device(&nodemgr_ne_class, ¶m, __match_ne_nodeid); + dev = class_find_device(&nodemgr_ne_class, NULL, ¶m, + __match_ne_nodeid); if (!dev) return NULL; ne = container_of(dev, struct node_entry, node_dev); @@ -1453,7 +1456,8 @@ static void nodemgr_suspend_ne(struct node_entry *ne) ne->in_limbo = 1; WARN_ON(device_create_file(&ne->device, &dev_attr_ne_in_limbo)); - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_suspend); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_driver_suspend); } @@ -1462,7 +1466,8 @@ static void nodemgr_resume_ne(struct node_entry *ne) ne->in_limbo = 0; device_remove_file(&ne->device, &dev_attr_ne_in_limbo); - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_driver_resume); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_driver_resume); HPSB_DEBUG("Node resumed: ID:BUS[" NODE_BUS_FMT "] GUID[%016Lx]", NODE_BUS_ARGS(ne->host, ne->nodeid), (unsigned long long)ne->guid); } @@ -1498,7 +1503,8 @@ static int __nodemgr_update_pdrv(struct device *dev, void *data) static void nodemgr_update_pdrv(struct node_entry *ne) { - class_for_each_device(&nodemgr_ud_class, ne, __nodemgr_update_pdrv); + class_for_each_device(&nodemgr_ud_class, NULL, ne, + __nodemgr_update_pdrv); } @@ -1591,7 +1597,8 @@ static void nodemgr_node_probe(struct host_info *hi, int generation) * while probes are time-consuming. (Well, those probes need some * improvement...) */ - class_for_each_device(&nodemgr_ne_class, ¶m, __nodemgr_node_probe); + class_for_each_device(&nodemgr_ne_class, NULL, ¶m, + __nodemgr_node_probe); /* If we had a bus reset while we were scanning the bus, it is * possible that we did not probe all nodes. In that case, we @@ -1826,7 +1833,7 @@ int nodemgr_for_each_host(void *data, int (*cb)(struct hpsb_host *, void *)) hip.cb = cb; hip.data = data; - error = class_for_each_device(&hpsb_host_class, &hip, + error = class_for_each_device(&hpsb_host_class, NULL, &hip, __nodemgr_for_each_host); return error; diff --git a/drivers/ieee1394/raw1394.c b/drivers/ieee1394/raw1394.c index 96f2847b040..6fa9e4a2184 100644 --- a/drivers/ieee1394/raw1394.c +++ b/drivers/ieee1394/raw1394.c @@ -3010,10 +3010,10 @@ static int __init init_raw1394(void) hpsb_register_highlevel(&raw1394_highlevel); if (IS_ERR - (device_create( + (device_create_drvdata( hpsb_protocol_class, NULL, MKDEV(IEEE1394_MAJOR, IEEE1394_MINOR_BLOCK_RAW1394 * 16), - RAW1394_DEVICE_NAME))) { + NULL, RAW1394_DEVICE_NAME))) { ret = -EFAULT; goto out_unreg; } diff --git a/drivers/ieee1394/video1394.c b/drivers/ieee1394/video1394.c index 069b9f6bf16..25db6e67fa4 100644 --- a/drivers/ieee1394/video1394.c +++ b/drivers/ieee1394/video1394.c @@ -1341,9 +1341,9 @@ static void video1394_add_host (struct hpsb_host *host) hpsb_set_hostinfo_key(&video1394_highlevel, host, ohci->host->id); minor = IEEE1394_MINOR_BLOCK_VIDEO1394 * 16 + ohci->host->id; - device_create(hpsb_protocol_class, NULL, - MKDEV(IEEE1394_MAJOR, minor), - "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id); + device_create_drvdata(hpsb_protocol_class, NULL, + MKDEV(IEEE1394_MAJOR, minor), NULL, + "%s-%d", VIDEO1394_DRIVER_NAME, ohci->host->id); } diff --git a/drivers/infiniband/core/cm.c b/drivers/infiniband/core/cm.c index 55738eead3b..922d35f4fc0 100644 --- a/drivers/infiniband/core/cm.c +++ b/drivers/infiniband/core/cm.c @@ -44,6 +44,7 @@ #include <linux/spinlock.h> #include <linux/sysfs.h> #include <linux/workqueue.h> +#include <linux/kdev_t.h> #include <rdma/ib_cache.h> #include <rdma/ib_cm.h> @@ -162,8 +163,8 @@ struct cm_port { struct cm_device { struct list_head list; - struct ib_device *device; - struct kobject dev_obj; + struct ib_device *ib_device; + struct device *device; u8 ack_delay; struct cm_port *port[0]; }; @@ -339,7 +340,7 @@ static void cm_init_av_for_response(struct cm_port *port, struct ib_wc *wc, { av->port = port; av->pkey_index = wc->pkey_index; - ib_init_ah_from_wc(port->cm_dev->device, port->port_num, wc, + ib_init_ah_from_wc(port->cm_dev->ib_device, port->port_num, wc, grh, &av->ah_attr); } @@ -353,7 +354,7 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av) read_lock_irqsave(&cm.device_lock, flags); list_for_each_entry(cm_dev, &cm.device_list, list) { - if (!ib_find_cached_gid(cm_dev->device, &path->sgid, + if (!ib_find_cached_gid(cm_dev->ib_device, &path->sgid, &p, NULL)) { port = cm_dev->port[p-1]; break; @@ -364,13 +365,13 @@ static int cm_init_av_by_path(struct ib_sa_path_rec *path, struct cm_av *av) if (!port) return -EINVAL; - ret = ib_find_cached_pkey(cm_dev->device, port->port_num, + ret = ib_find_cached_pkey(cm_dev->ib_device, port->port_num, be16_to_cpu(path->pkey), &av->pkey_index); if (ret) return ret; av->port = port; - ib_init_ah_from_path(cm_dev->device, port->port_num, path, + ib_init_ah_from_path(cm_dev->ib_device, port->port_num, path, &av->ah_attr); av->timeout = path->packet_life_time + 1; return 0; @@ -1515,7 +1516,7 @@ static int cm_req_handler(struct cm_work *work) req_msg = (struct cm_req_msg *)work->mad_recv_wc->recv_buf.mad; - cm_id = ib_create_cm_id(work->port->cm_dev->device, NULL, NULL); + cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL); if (IS_ERR(cm_id)) return PTR_ERR(cm_id); @@ -1550,7 +1551,7 @@ static int cm_req_handler(struct cm_work *work) cm_format_paths_from_req(req_msg, &work->path[0], &work->path[1]); ret = cm_init_av_by_path(&work->path[0], &cm_id_priv->av); if (ret) { - ib_get_cached_gid(work->port->cm_dev->device, + ib_get_cached_gid(work->port->cm_dev->ib_device, work->port->port_num, 0, &work->path[0].sgid); ib_send_cm_rej(cm_id, IB_CM_REJ_INVALID_GID, &work->path[0].sgid, sizeof work->path[0].sgid, @@ -2950,7 +2951,7 @@ static int cm_sidr_req_handler(struct cm_work *work) struct cm_sidr_req_msg *sidr_req_msg; struct ib_wc *wc; - cm_id = ib_create_cm_id(work->port->cm_dev->device, NULL, NULL); + cm_id = ib_create_cm_id(work->port->cm_dev->ib_device, NULL, NULL); if (IS_ERR(cm_id)) return PTR_ERR(cm_id); cm_id_priv = container_of(cm_id, struct cm_id_private, id); @@ -3578,7 +3579,7 @@ static void cm_get_ack_delay(struct cm_device *cm_dev) { struct ib_device_attr attr; - if (ib_query_device(cm_dev->device, &attr)) + if (ib_query_device(cm_dev->ib_device, &attr)) cm_dev->ack_delay = 0; /* acks will rely on packet life time */ else cm_dev->ack_delay = attr.local_ca_ack_delay; @@ -3618,18 +3619,6 @@ static struct kobj_type cm_port_obj_type = { .release = cm_release_port_obj }; -static void cm_release_dev_obj(struct kobject *obj) -{ - struct cm_device *cm_dev; - - cm_dev = container_of(obj, struct cm_device, dev_obj); - kfree(cm_dev); -} - -static struct kobj_type cm_dev_obj_type = { - .release = cm_release_dev_obj -}; - struct class cm_class = { .name = "infiniband_cm", }; @@ -3640,7 +3629,7 @@ static int cm_create_port_fs(struct cm_port *port) int i, ret; ret = kobject_init_and_add(&port->port_obj, &cm_port_obj_type, - &port->cm_dev->dev_obj, + &port->cm_dev->device->kobj, "%d", port->port_num); if (ret) { kfree(port); @@ -3676,7 +3665,7 @@ static void cm_remove_port_fs(struct cm_port *port) kobject_put(&port->port_obj); } -static void cm_add_one(struct ib_device *device) +static void cm_add_one(struct ib_device *ib_device) { struct cm_device *cm_dev; struct cm_port *port; @@ -3691,26 +3680,27 @@ static void cm_add_one(struct ib_device *device) int ret; u8 i; - if (rdma_node_get_transport(device->node_type) != RDMA_TRANSPORT_IB) + if (rdma_node_get_transport(ib_device->node_type) != RDMA_TRANSPORT_IB) return; cm_dev = kzalloc(sizeof(*cm_dev) + sizeof(*port) * - device->phys_port_cnt, GFP_KERNEL); + ib_device->phys_port_cnt, GFP_KERNEL); if (!cm_dev) return; - cm_dev->device = device; + cm_dev->ib_device = ib_device; cm_get_ack_delay(cm_dev); - ret = kobject_init_and_add(&cm_dev->dev_obj, &cm_dev_obj_type, - &cm_class.subsys.kobj, "%s", device->name); - if (ret) { + cm_dev->device = device_create_drvdata(&cm_class, &ib_device->dev, + MKDEV(0, 0), NULL, + "%s", ib_device->name); + if (!cm_dev->device) { kfree(cm_dev); return; } set_bit(IB_MGMT_METHOD_SEND, reg_req.method_mask); - for (i = 1; i <= device->phys_port_cnt; i++) { + for (i = 1; i <= ib_device->phys_port_cnt; i++) { port = kzalloc(sizeof *port, GFP_KERNEL); if (!port) goto error1; @@ -3723,7 +3713,7 @@ static void cm_add_one(struct ib_device *device) if (ret) goto error1; - port->mad_agent = ib_register_mad_agent(device, i, + port->mad_agent = ib_register_mad_agent(ib_device, i, IB_QPT_GSI, ®_req, 0, @@ -3733,11 +3723,11 @@ static void cm_add_one(struct ib_device *device) if (IS_ERR(port->mad_agent)) goto error2; - ret = ib_modify_port(device, i, 0, &port_modify); + ret = ib_modify_port(ib_device, i, 0, &port_modify); if (ret) goto error3; } - ib_set_client_data(device, &cm_client, cm_dev); + ib_set_client_data(ib_device, &cm_client, cm_dev); write_lock_irqsave(&cm.device_lock, flags); list_add_tail(&cm_dev->list, &cm.device_list); @@ -3753,14 +3743,14 @@ error1: port_modify.clr_port_cap_mask = IB_PORT_CM_SUP; while (--i) { port = cm_dev->port[i-1]; - ib_modify_port(device, port->port_num, 0, &port_modify); + ib_modify_port(ib_device, port->port_num, 0, &port_modify); ib_unregister_mad_agent(port->mad_agent); cm_remove_port_fs(port); } - kobject_put(&cm_dev->dev_obj); + device_unregister(cm_dev->device); } -static void cm_remove_one(struct ib_device *device) +static void cm_remove_one(struct ib_device *ib_device) { struct cm_device *cm_dev; struct cm_port *port; @@ -3770,7 +3760,7 @@ static void cm_remove_one(struct ib_device *device) unsigned long flags; int i; - cm_dev = ib_get_client_data(device, &cm_client); + cm_dev = ib_get_client_data(ib_device, &cm_client); if (!cm_dev) return; @@ -3778,14 +3768,14 @@ static void cm_remove_one(struct ib_device *device) list_del(&cm_dev->list); write_unlock_irqrestore(&cm.device_lock, flags); - for (i = 1; i <= device->phys_port_cnt; i++) { + for (i = 1; i <= ib_device->phys_port_cnt; i++) { port = cm_dev->port[i-1]; - ib_modify_port(device, port->port_num, 0, &port_modify); + ib_modify_port(ib_device, port->port_num, 0, &port_modify); ib_unregister_mad_agent(port->mad_agent); flush_workqueue(cm.wq); cm_remove_port_fs(port); } - kobject_put(&cm_dev->dev_obj); + device_unregister(cm_dev->device); } static int __init ib_cm_init(void) diff --git a/drivers/infiniband/hw/ipath/ipath_file_ops.c b/drivers/infiniband/hw/ipath/ipath_file_ops.c index 35f301c88b5..56c0eda3c07 100644 --- a/drivers/infiniband/hw/ipath/ipath_file_ops.c +++ b/drivers/infiniband/hw/ipath/ipath_file_ops.c @@ -2455,7 +2455,7 @@ static int init_cdev(int minor, char *name, const struct file_operations *fops, goto err_cdev; } - device = device_create(ipath_class, NULL, dev, name); + device = device_create_drvdata(ipath_class, NULL, dev, NULL, name); if (IS_ERR(device)) { ret = PTR_ERR(device); diff --git a/drivers/isdn/capi/capi.c b/drivers/isdn/capi/capi.c index 19e005e81fe..871b0cbca5e 100644 --- a/drivers/isdn/capi/capi.c +++ b/drivers/isdn/capi/capi.c @@ -1553,7 +1553,8 @@ static int __init capi_init(void) return PTR_ERR(capi_class); } - device_create(capi_class, NULL, MKDEV(capi_major, 0), "capi"); + device_create_drvdata(capi_class, NULL, MKDEV(capi_major, 0), NULL, + "capi"); #ifdef CONFIG_ISDN_CAPI_MIDDLEWARE if (capinc_tty_init() < 0) { diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c index e5d446804d3..cae52485208 100644 --- a/drivers/macintosh/adb.c +++ b/drivers/macintosh/adb.c @@ -862,7 +862,8 @@ adbdev_init(void) adb_dev_class = class_create(THIS_MODULE, "adb"); if (IS_ERR(adb_dev_class)) return; - device_create(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), "adb"); + device_create_drvdata(adb_dev_class, NULL, MKDEV(ADB_MAJOR, 0), NULL, + "adb"); platform_device_register(&adb_pfdev); platform_driver_probe(&adb_pfdrv, adb_dummy_probe); diff --git a/drivers/mca/mca-bus.c b/drivers/mca/mca-bus.c index 67b8e9453b1..ef2dbfe7471 100644 --- a/drivers/mca/mca-bus.c +++ b/drivers/mca/mca-bus.c @@ -40,7 +40,7 @@ static struct mca_bus *mca_root_busses[MAX_MCA_BUSSES]; struct mca_device_info { short pos_id; /* the 2 byte pos id for this card */ - char name[DEVICE_NAME_SIZE]; + char name[50]; }; static int mca_bus_match (struct device *dev, struct device_driver *drv) diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index e208a60c048..e7132770a3b 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -233,9 +233,9 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, mutex_unlock(&dvbdev_register_lock); - clsdev = device_create(dvb_class, adap->device, + clsdev = device_create_drvdata(dvb_class, adap->device, MKDEV(DVB_MAJOR, nums2minor(adap->num, type, id)), - "dvb%d.%s%d", adap->num, dnames[type], id); + NULL, "dvb%d.%s%d", adap->num, dnames[type], id); if (IS_ERR(clsdev)) { printk(KERN_ERR "%s: failed to create device dvb%d.%s%d (%ld)\n", __func__, adap->num, dnames[type], id, PTR_ERR(clsdev)); diff --git a/drivers/memstick/host/jmb38x_ms.c b/drivers/memstick/host/jmb38x_ms.c index a054668eda1..4e3bfbcdf15 100644 --- a/drivers/memstick/host/jmb38x_ms.c +++ b/drivers/memstick/host/jmb38x_ms.c @@ -51,7 +51,7 @@ struct jmb38x_ms_host { void __iomem *addr; spinlock_t lock; int id; - char host_id[DEVICE_ID_SIZE]; + char host_id[32]; int irq; unsigned int block_pos; unsigned long timeout_jiffies; @@ -781,7 +781,7 @@ static struct memstick_host *jmb38x_ms_alloc_host(struct jmb38x_ms *jm, int cnt) spin_lock_init(&host->lock); host->id = cnt; - snprintf(host->host_id, DEVICE_ID_SIZE, DRIVER_NAME ":slot%d", + snprintf(host->host_id, sizeof(host->host_id), DRIVER_NAME ":slot%d", host->id); host->irq = jm->pdev->irq; host->timeout_jiffies = msecs_to_jiffies(1000); diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c index 75e599b85b6..34402c47027 100644 --- a/drivers/message/fusion/mptbase.c +++ b/drivers/message/fusion/mptbase.c @@ -1670,7 +1670,8 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id) INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work); spin_lock_init(&ioc->fault_reset_work_lock); - snprintf(ioc->reset_work_q_name, KOBJ_NAME_LEN, "mpt_poll_%d", ioc->id); + snprintf(ioc->reset_work_q_name, sizeof(ioc->reset_work_q_name), + "mpt_poll_%d", ioc->id); ioc->reset_work_q = create_singlethread_workqueue(ioc->reset_work_q_name); if (!ioc->reset_work_q) { diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h index 6adab648dbb..dff048cfa10 100644 --- a/drivers/message/fusion/mptbase.h +++ b/drivers/message/fusion/mptbase.h @@ -707,12 +707,12 @@ typedef struct _MPT_ADAPTER u8 fc_link_speed[2]; spinlock_t fc_rescan_work_lock; struct work_struct fc_rescan_work; - char fc_rescan_work_q_name[KOBJ_NAME_LEN]; + char fc_rescan_work_q_name[20]; struct workqueue_struct *fc_rescan_work_q; struct scsi_cmnd **ScsiLookup; spinlock_t scsi_lookup_lock; - char reset_work_q_name[KOBJ_NAME_LEN]; + char reset_work_q_name[20]; struct workqueue_struct *reset_work_q; struct delayed_work fault_reset_work; spinlock_t fault_reset_work_lock; diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index fc31ca6829d..b36cae9ec6d 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -1326,8 +1326,8 @@ mptfc_probe(struct pci_dev *pdev, const struct pci_device_id *id) /* initialize workqueue */ - snprintf(ioc->fc_rescan_work_q_name, KOBJ_NAME_LEN, "mptfc_wq_%d", - sh->host_no); + snprintf(ioc->fc_rescan_work_q_name, sizeof(ioc->fc_rescan_work_q_name), + "mptfc_wq_%d", sh->host_no); ioc->fc_rescan_work_q = create_singlethread_workqueue(ioc->fc_rescan_work_q_name); if (!ioc->fc_rescan_work_q) diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig index 1921b8dbb24..ce67d973d34 100644 --- a/drivers/misc/Kconfig +++ b/drivers/misc/Kconfig @@ -420,4 +420,17 @@ config SGI_XP this feature will allow for direct communication between SSIs based on a network adapter and DMA messaging. +config HP_ILO + tristate "Channel interface driver for HP iLO/iLO2 processor" + default n + help + The channel interface driver allows applications to communicate + with iLO/iLO2 management processors present on HP ProLiant + servers. Upon loading, the driver creates /dev/hpilo/dXccbN files, + which can be used to gather data from the management processor, + via read and write system calls. + + To compile this driver as a module, choose M here: the + module will be called hpilo. + endif # MISC_DEVICES diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile index a6dac6a2e7e..688fe76135e 100644 --- a/drivers/misc/Makefile +++ b/drivers/misc/Makefile @@ -27,3 +27,4 @@ obj-$(CONFIG_INTEL_MENLOW) += intel_menlow.o obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o obj-$(CONFIG_KGDB_TESTS) += kgdbts.o obj-$(CONFIG_SGI_XP) += sgi-xp/ +obj-$(CONFIG_HP_ILO) += hpilo.o diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c new file mode 100644 index 00000000000..05e29828923 --- /dev/null +++ b/drivers/misc/hpilo.c @@ -0,0 +1,768 @@ +/* + * Driver for HP iLO/iLO2 management processor. + * + * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. + * David Altobelli <david.altobelli@hp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#include <linux/kernel.h> +#include <linux/types.h> +#include <linux/module.h> +#include <linux/fs.h> +#include <linux/pci.h> +#include <linux/ioport.h> +#include <linux/device.h> +#include <linux/file.h> +#include <linux/cdev.h> +#include <linux/spinlock.h> +#include <linux/delay.h> +#include <linux/uaccess.h> +#include <linux/io.h> +#include "hpilo.h" + +static struct class *ilo_class; +static unsigned int ilo_major; +static char ilo_hwdev[MAX_ILO_DEV]; + +static inline int get_entry_id(int entry) +{ + return (entry & ENTRY_MASK_DESCRIPTOR) >> ENTRY_BITPOS_DESCRIPTOR; +} + +static inline int get_entry_len(int entry) +{ + return ((entry & ENTRY_MASK_QWORDS) >> ENTRY_BITPOS_QWORDS) << 3; +} + +static inline int mk_entry(int id, int len) +{ + int qlen = len & 7 ? (len >> 3) + 1 : len >> 3; + return id << ENTRY_BITPOS_DESCRIPTOR | qlen << ENTRY_BITPOS_QWORDS; +} + +static inline int desc_mem_sz(int nr_entry) +{ + return nr_entry << L2_QENTRY_SZ; +} + +/* + * FIFO queues, shared with hardware. + * + * If a queue has empty slots, an entry is added to the queue tail, + * and that entry is marked as occupied. + * Entries can be dequeued from the head of the list, when the device + * has marked the entry as consumed. + * + * Returns true on successful queue/dequeue, false on failure. + */ +static int fifo_enqueue(struct ilo_hwinfo *hw, char *fifobar, int entry) +{ + struct fifo *fifo_q = FIFOBARTOHANDLE(fifobar); + int ret = 0; + + spin_lock(&hw->fifo_lock); + if (!(fifo_q->fifobar[(fifo_q->tail + 1) & fifo_q->imask] + & ENTRY_MASK_O)) { + fifo_q->fifobar[fifo_q->tail & fifo_q->imask] |= + (entry & ENTRY_MASK_NOSTATE) | fifo_q->merge; + fifo_q->tail += 1; + ret = 1; + } + spin_unlock(&hw->fifo_lock); + + return ret; +} + +static int fifo_dequeue(struct ilo_hwinfo *hw, char *fifobar, int *entry) +{ + struct fifo *fifo_q = FIFOBARTOHANDLE(fifobar); + int ret = 0; + u64 c; + + spin_lock(&hw->fifo_lock); + c = fifo_q->fifobar[fifo_q->head & fifo_q->imask]; + if (c & ENTRY_MASK_C) { + if (entry) + *entry = c & ENTRY_MASK_NOSTATE; + + fifo_q->fifobar[fifo_q->head & fifo_q->imask] = + (c | ENTRY_MASK) + 1; + fifo_q->head += 1; + ret = 1; + } + spin_unlock(&hw->fifo_lock); + + return ret; +} + +static int ilo_pkt_enqueue(struct ilo_hwinfo *hw, struct ccb *ccb, + int dir, int id, int len) +{ + char *fifobar; + int entry; + + if (dir == SENDQ) + fifobar = ccb->ccb_u1.send_fifobar; + else + fifobar = ccb->ccb_u3.recv_fifobar; + + entry = mk_entry(id, len); + return fifo_enqueue(hw, fifobar, entry); +} + +static int ilo_pkt_dequeue(struct ilo_hwinfo *hw, struct ccb *ccb, + int dir, int *id, int *len, void **pkt) +{ + char *fifobar, *desc; + int entry = 0, pkt_id = 0; + int ret; + + if (dir == SENDQ) { + fifobar = ccb->ccb_u1.send_fifobar; + desc = ccb->ccb_u2.send_desc; + } else { + fifobar = ccb->ccb_u3.recv_fifobar; + desc = ccb->ccb_u4.recv_desc; + } + + ret = fifo_dequeue(hw, fifobar, &entry); + if (ret) { + pkt_id = get_entry_id(entry); + if (id) + *id = pkt_id; + if (len) + *len = get_entry_len(entry); + if (pkt) + *pkt = (void *)(desc + desc_mem_sz(pkt_id)); + } + + return ret; +} + +static inline void doorbell_set(struct ccb *ccb) +{ + iowrite8(1, ccb->ccb_u5.db_base); +} + +static inline void doorbell_clr(struct ccb *ccb) +{ + iowrite8(2, ccb->ccb_u5.db_base); +} +static inline int ctrl_set(int l2sz, int idxmask, int desclim) +{ + int active = 0, go = 1; + return l2sz << CTRL_BITPOS_L2SZ | + idxmask << CTRL_BITPOS_FIFOINDEXMASK | + desclim << CTRL_BITPOS_DESCLIMIT | + active << CTRL_BITPOS_A | + go << CTRL_BITPOS_G; +} +static void ctrl_setup(struct ccb *ccb, int nr_desc, int l2desc_sz) +{ + /* for simplicity, use the same parameters for send and recv ctrls */ + ccb->send_ctrl = ctrl_set(l2desc_sz, nr_desc-1, nr_desc-1); + ccb->recv_ctrl = ctrl_set(l2desc_sz, nr_desc-1, nr_desc-1); +} + +static inline int fifo_sz(int nr_entry) +{ + /* size of a fifo is determined by the number of entries it contains */ + return (nr_entry * sizeof(u64)) + FIFOHANDLESIZE; +} + +static void fifo_setup(void *base_addr, int nr_entry) +{ + struct fifo *fifo_q = base_addr; + int i; + + /* set up an empty fifo */ + fifo_q->head = 0; + fifo_q->tail = 0; + fifo_q->reset = 0; + fifo_q->nrents = nr_entry; + fifo_q->imask = nr_entry - 1; + fifo_q->merge = ENTRY_MASK_O; + + for (i = 0; i < nr_entry; i++) + fifo_q->fifobar[i] = 0; +} + +static void ilo_ccb_close(struct pci_dev *pdev, struct ccb_data *data) +{ + struct ccb *driver_ccb; + struct ccb __iomem *device_ccb; + int retries; + + driver_ccb = &data->driver_ccb; + device_ccb = data->mapped_ccb; + + /* complicated dance to tell the hw we are stopping */ + doorbell_clr(driver_ccb); + iowrite32(ioread32(&device_ccb->send_ctrl) & ~(1 << CTRL_BITPOS_G), + &device_ccb->send_ctrl); + iowrite32(ioread32(&device_ccb->recv_ctrl) & ~(1 << CTRL_BITPOS_G), + &device_ccb->recv_ctrl); + + /* give iLO some time to process stop request */ + for (retries = 1000; retries > 0; retries--) { + doorbell_set(driver_ccb); + udelay(1); + if (!(ioread32(&device_ccb->send_ctrl) & (1 << CTRL_BITPOS_A)) + && + !(ioread32(&device_ccb->recv_ctrl) & (1 << CTRL_BITPOS_A))) + break; + } + if (retries == 0) + dev_err(&pdev->dev, "Closing, but controller still active\n"); + + /* clear the hw ccb */ + memset_io(device_ccb, 0, sizeof(struct ccb)); + + /* free resources used to back send/recv queues */ + pci_free_consistent(pdev, data->dma_size, data->dma_va, data->dma_pa); +} + +static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot) +{ + char *dma_va, *dma_pa; + int pkt_id, pkt_sz, i, error; + struct ccb *driver_ccb, *ilo_ccb; + struct pci_dev *pdev; + + driver_ccb = &data->driver_ccb; + ilo_ccb = &data->ilo_ccb; + pdev = hw->ilo_dev; + + data->dma_size = 2 * fifo_sz(NR_QENTRY) + + 2 * desc_mem_sz(NR_QENTRY) + + ILO_START_ALIGN + ILO_CACHE_SZ; + + error = -ENOMEM; + data->dma_va = pci_alloc_consistent(pdev, data->dma_size, + &data->dma_pa); + if (!data->dma_va) + goto out; + + dma_va = (char *)data->dma_va; + dma_pa = (char *)data->dma_pa; + + memset(dma_va, 0, data->dma_size); + + dma_va = (char *)roundup((unsigned long)dma_va, ILO_START_ALIGN); + dma_pa = (char *)roundup((unsigned long)dma_pa, ILO_START_ALIGN); + + /* + * Create two ccb's, one with virt addrs, one with phys addrs. + * Copy the phys addr ccb to device shared mem. + */ + ctrl_setup(driver_ccb, NR_QENTRY, L2_QENTRY_SZ); + ctrl_setup(ilo_ccb, NR_QENTRY, L2_QENTRY_SZ); + + fifo_setup(dma_va, NR_QENTRY); + driver_ccb->ccb_u1.send_fifobar = dma_va + FIFOHANDLESIZE; + ilo_ccb->ccb_u1.send_fifobar = dma_pa + FIFOHANDLESIZE; + dma_va += fifo_sz(NR_QENTRY); + dma_pa += fifo_sz(NR_QENTRY); + + dma_va = (char *)roundup((unsigned long)dma_va, ILO_CACHE_SZ); + dma_pa = (char *)roundup((unsigned long)dma_pa, ILO_CACHE_SZ); + + fifo_setup(dma_va, NR_QENTRY); + driver_ccb->ccb_u3.recv_fifobar = dma_va + FIFOHANDLESIZE; + ilo_ccb->ccb_u3.recv_fifobar = dma_pa + FIFOHANDLESIZE; + dma_va += fifo_sz(NR_QENTRY); + dma_pa += fifo_sz(NR_QENTRY); + + driver_ccb->ccb_u2.send_desc = dma_va; + ilo_ccb->ccb_u2.send_desc = dma_pa; + dma_pa += desc_mem_sz(NR_QENTRY); + dma_va += desc_mem_sz(NR_QENTRY); + + driver_ccb->ccb_u4.recv_desc = dma_va; + ilo_ccb->ccb_u4.recv_desc = dma_pa; + + driver_ccb->channel = slot; + ilo_ccb->channel = slot; + + driver_ccb->ccb_u5.db_base = hw->db_vaddr + (slot << L2_DB_SIZE); + ilo_ccb->ccb_u5.db_base = NULL; /* hw ccb's doorbell is not used */ + + /* copy the ccb with physical addrs to device memory */ + data->mapped_ccb = (struct ccb __iomem *) + (hw->ram_vaddr + (slot * ILOHW_CCB_SZ)); + memcpy_toio(data->mapped_ccb, ilo_ccb, sizeof(struct ccb)); + + /* put packets on the send and receive queues */ + pkt_sz = 0; + for (pkt_id = 0; pkt_id < NR_QENTRY; pkt_id++) { + ilo_pkt_enqueue(hw, driver_ccb, SENDQ, pkt_id, pkt_sz); + doorbell_set(driver_ccb); + } + + pkt_sz = desc_mem_sz(1); + for (pkt_id = 0; pkt_id < NR_QENTRY; pkt_id++) + ilo_pkt_enqueue(hw, driver_ccb, RECVQ, pkt_id, pkt_sz); + + doorbell_clr(driver_ccb); + + /* make sure iLO is really handling requests */ + for (i = 1000; i > 0; i--) { + if (ilo_pkt_dequeue(hw, driver_ccb, SENDQ, &pkt_id, NULL, NULL)) + break; + udelay(1); + } + + if (i) { + ilo_pkt_enqueue(hw, driver_ccb, SENDQ, pkt_id, 0); + doorbell_set(driver_ccb); + } else { + dev_err(&pdev->dev, "Open could not dequeue a packet\n"); + error = -EBUSY; + goto free; + } + + return 0; +free: + pci_free_consistent(pdev, data->dma_size, data->dma_va, data->dma_pa); +out: + return error; +} + +static inline int is_channel_reset(struct ccb *ccb) +{ + /* check for this particular channel needing a reset */ + return FIFOBARTOHANDLE(ccb->ccb_u1.send_fifobar)->reset; +} + +static inline void set_channel_reset(struct ccb *ccb) +{ + /* set a flag indicating this channel needs a reset */ + FIFOBARTOHANDLE(ccb->ccb_u1.send_fifobar)->reset = 1; +} + +static inline int is_device_reset(struct ilo_hwinfo *hw) +{ + /* check for global reset condition */ + return ioread32(&hw->mmio_vaddr[DB_OUT]) & (1 << DB_RESET); +} + +static inline void clear_device(struct ilo_hwinfo *hw) +{ + /* clear the device (reset bits, pending channel entries) */ + iowrite32(-1, &hw->mmio_vaddr[DB_OUT]); +} + +static void ilo_locked_reset(struct ilo_hwinfo *hw) +{ + int slot; + + /* + * Mapped memory is zeroed on ilo reset, so set a per ccb flag + * to indicate that this ccb needs to be closed and reopened. + */ + for (slot = 0; slot < MAX_CCB; slot++) { + if (!hw->ccb_alloc[slot]) + continue; + set_channel_reset(&hw->ccb_alloc[slot]->driver_ccb); + } + + clear_device(hw); +} + +static void ilo_reset(struct ilo_hwinfo *hw) +{ + spin_lock(&hw->alloc_lock); + + /* reset might have been handled after lock was taken */ + if (is_device_reset(hw)) + ilo_locked_reset(hw); + + spin_unlock(&hw->alloc_lock); +} + +static ssize_t ilo_read(struct file *fp, char __user *buf, + size_t len, loff_t *off) +{ + int err, found, cnt, pkt_id, pkt_len; + struct ccb_data *data; + struct ccb *driver_ccb; + struct ilo_hwinfo *hw; + void *pkt; + + data = fp->private_data; + driver_ccb = &data->driver_ccb; + hw = data->ilo_hw; + + if (is_device_reset(hw) || is_channel_reset(driver_ccb)) { + /* + * If the device has been reset, applications + * need to close and reopen all ccbs. + */ + ilo_reset(hw); + return -ENODEV; + } + + /* + * This function is to be called when data is expected + * in the channel, and will return an error if no packet is found + * during the loop below. The sleep/retry logic is to allow + * applications to call read() immediately post write(), + * and give iLO some time to process the sent packet. + */ + cnt = 20; + do { + /* look for a received packet */ + found = ilo_pkt_dequeue(hw, driver_ccb, RECVQ, &pkt_id, + &pkt_len, &pkt); + if (found) + break; + cnt--; + msleep(100); + } while (!found && cnt); + + if (!found) + return -EAGAIN; + + /* only copy the length of the received packet */ + if (pkt_len < len) + len = pkt_len; + + err = copy_to_user(buf, pkt, len); + + /* return the received packet to the queue */ + ilo_pkt_enqueue(hw, driver_ccb, RECVQ, pkt_id, desc_mem_sz(1)); + + return err ? -EFAULT : len; +} + +static ssize_t ilo_write(struct file *fp, const char __user *buf, + size_t len, loff_t *off) +{ + int err, pkt_id, pkt_len; + struct ccb_data *data; + struct ccb *driver_ccb; + struct ilo_hwinfo *hw; + void *pkt; + + data = fp->private_data; + driver_ccb = &data->driver_ccb; + hw = data->ilo_hw; + + if (is_device_reset(hw) || is_channel_reset(driver_ccb)) { + /* + * If the device has been reset, applications + * need to close and reopen all ccbs. + */ + ilo_reset(hw); + return -ENODEV; + } + + /* get a packet to send the user command */ + if (!ilo_pkt_dequeue(hw, driver_ccb, SENDQ, &pkt_id, &pkt_len, &pkt)) + return -EBUSY; + + /* limit the length to the length of the packet */ + if (pkt_len < len) + len = pkt_len; + + /* on failure, set the len to 0 to return empty packet to the device */ + err = copy_from_user(pkt, buf, len); + if (err) + len = 0; + + /* send the packet */ + ilo_pkt_enqueue(hw, driver_ccb, SENDQ, pkt_id, len); + doorbell_set(driver_ccb); + + return err ? -EFAULT : len; +} + +static int ilo_close(struct inode *ip, struct file *fp) +{ + int slot; + struct ccb_data *data; + struct ilo_hwinfo *hw; + + slot = iminor(ip) % MAX_CCB; + hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev); + + spin_lock(&hw->alloc_lock); + + if (is_device_reset(hw)) + ilo_locked_reset(hw); + + if (hw->ccb_alloc[slot]->ccb_cnt == 1) { + + data = fp->private_data; + + ilo_ccb_close(hw->ilo_dev, data); + + kfree(data); + hw->ccb_alloc[slot] = NULL; + } else + hw->ccb_alloc[slot]->ccb_cnt--; + + spin_unlock(&hw->alloc_lock); + + return 0; +} + +static int ilo_open(struct inode *ip, struct file *fp) +{ + int slot, error; + struct ccb_data *data; + struct ilo_hwinfo *hw; + + slot = iminor(ip) % MAX_CCB; + hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev); + + /* new ccb allocation */ + data = kzalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + spin_lock(&hw->alloc_lock); + + if (is_device_reset(hw)) + ilo_locked_reset(hw); + + /* each fd private_data holds sw/hw view of ccb */ + if (hw->ccb_alloc[slot] == NULL) { + /* create a channel control block for this minor */ + error = ilo_ccb_open(hw, data, slot); + if (!error) { + hw->ccb_alloc[slot] = data; + hw->ccb_alloc[slot]->ccb_cnt = 1; + hw->ccb_alloc[slot]->ccb_excl = fp->f_flags & O_EXCL; + hw->ccb_alloc[slot]->ilo_hw = hw; + } else + kfree(data); + } else { + kfree(data); + if (fp->f_flags & O_EXCL || hw->ccb_alloc[slot]->ccb_excl) { + /* + * The channel exists, and either this open + * or a previous open of this channel wants + * exclusive access. + */ + error = -EBUSY; + } else { + hw->ccb_alloc[slot]->ccb_cnt++; + error = 0; + } + } + spin_unlock(&hw->alloc_lock); + + if (!error) + fp->private_data = hw->ccb_alloc[slot]; + + return error; +} + +static const struct file_operations ilo_fops = { + .owner = THIS_MODULE, + .read = ilo_read, + .write = ilo_write, + .open = ilo_open, + .release = ilo_close, +}; + +static void ilo_unmap_device(struct pci_dev *pdev, struct ilo_hwinfo *hw) +{ + pci_iounmap(pdev, hw->db_vaddr); + pci_iounmap(pdev, hw->ram_vaddr); + pci_iounmap(pdev, hw->mmio_vaddr); +} + +static int __devinit ilo_map_device(struct pci_dev *pdev, struct ilo_hwinfo *hw) +{ + int error = -ENOMEM; + + /* map the memory mapped i/o registers */ + hw->mmio_vaddr = pci_iomap(pdev, 1, 0); + if (hw->mmio_vaddr == NULL) { + dev_err(&pdev->dev, "Error mapping mmio\n"); + goto out; + } + + /* map the adapter shared memory region */ + hw->ram_vaddr = pci_iomap(pdev, 2, MAX_CCB * ILOHW_CCB_SZ); + if (hw->ram_vaddr == NULL) { + dev_err(&pdev->dev, "Error mapping shared mem\n"); + goto mmio_free; + } + + /* map the doorbell aperture */ + hw->db_vaddr = pci_iomap(pdev, 3, MAX_CCB * ONE_DB_SIZE); + if (hw->db_vaddr == NULL) { + dev_err(&pdev->dev, "Error mapping doorbell\n"); + goto ram_free; + } + + return 0; +ram_free: + pci_iounmap(pdev, hw->ram_vaddr); +mmio_free: + pci_iounmap(pdev, hw->mmio_vaddr); +out: + return error; +} + +static void ilo_remove(struct pci_dev *pdev) +{ + int i, minor; + struct ilo_hwinfo *ilo_hw = pci_get_drvdata(pdev); + + clear_device(ilo_hw); + + minor = MINOR(ilo_hw->cdev.dev); + for (i = minor; i < minor + MAX_CCB; i++) + device_destroy(ilo_class, MKDEV(ilo_major, i)); + + cdev_del(&ilo_hw->cdev); + ilo_unmap_device(pdev, ilo_hw); + pci_release_regions(pdev); + pci_disable_device(pdev); + kfree(ilo_hw); + ilo_hwdev[(minor / MAX_CCB)] = 0; +} + +static int __devinit ilo_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + int devnum, minor, start, error; + struct ilo_hwinfo *ilo_hw; + + /* find a free range for device files */ + for (devnum = 0; devnum < MAX_ILO_DEV; devnum++) { + if (ilo_hwdev[devnum] == 0) { + ilo_hwdev[devnum] = 1; + break; + } + } + + if (devnum == MAX_ILO_DEV) { + dev_err(&pdev->dev, "Error finding free device\n"); + return -ENODEV; + } + + /* track global allocations for this device */ + error = -ENOMEM; + ilo_hw = kzalloc(sizeof(*ilo_hw), GFP_KERNEL); + if (!ilo_hw) + goto out; + + ilo_hw->ilo_dev = pdev; + spin_lock_init(&ilo_hw->alloc_lock); + spin_lock_init(&ilo_hw->fifo_lock); + + error = pci_enable_device(pdev); + if (error) + goto free; + + pci_set_master(pdev); + + error = pci_request_regions(pdev, ILO_NAME); + if (error) + goto disable; + + error = ilo_map_device(pdev, ilo_hw); + if (error) + goto free_regions; + + pci_set_drvdata(pdev, ilo_hw); + clear_device(ilo_hw); + + cdev_init(&ilo_hw->cdev, &ilo_fops); + ilo_hw->cdev.owner = THIS_MODULE; + start = devnum * MAX_CCB; + error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), MAX_CCB); + if (error) { + dev_err(&pdev->dev, "Could not add cdev\n"); + goto unmap; + } + + for (minor = 0 ; minor < MAX_CCB; minor++) { + struct device *dev; + dev = device_create(ilo_class, &pdev->dev, + MKDEV(ilo_major, minor), NULL, + "hpilo!d%dccb%d", devnum, minor); + if (IS_ERR(dev)) + dev_err(&pdev->dev, "Could not create files\n"); + } + + return 0; +unmap: + ilo_unmap_device(pdev, ilo_hw); +free_regions: + pci_release_regions(pdev); +disable: + pci_disable_device(pdev); +free: + kfree(ilo_hw); +out: + ilo_hwdev[devnum] = 0; + return error; +} + +static struct pci_device_id ilo_devices[] = { + { PCI_DEVICE(PCI_VENDOR_ID_COMPAQ, 0xB204) }, + { } +}; +MODULE_DEVICE_TABLE(pci, ilo_devices); + +static struct pci_driver ilo_driver = { + .name = ILO_NAME, + .id_table = ilo_devices, + .probe = ilo_probe, + .remove = __devexit_p(ilo_remove), +}; + +static int __init ilo_init(void) +{ + int error; + dev_t dev; + + ilo_class = class_create(THIS_MODULE, "iLO"); + if (IS_ERR(ilo_class)) { + error = PTR_ERR(ilo_class); + goto out; + } + + error = alloc_chrdev_region(&dev, 0, MAX_OPEN, ILO_NAME); + if (error) + goto class_destroy; + + ilo_major = MAJOR(dev); + + error = pci_register_driver(&ilo_driver); + if (error) + goto chr_remove; + + return 0; +chr_remove: + unregister_chrdev_region(dev, MAX_OPEN); +class_destroy: + class_destroy(ilo_class); +out: + return error; +} + +static void __exit ilo_exit(void) +{ + pci_unregister_driver(&ilo_driver); + unregister_chrdev_region(MKDEV(ilo_major, 0), MAX_OPEN); + class_destroy(ilo_class); +} + +MODULE_VERSION("0.05"); +MODULE_ALIAS(ILO_NAME); +MODULE_DESCRIPTION(ILO_NAME); +MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>"); +MODULE_LICENSE("GPL v2"); + +module_init(ilo_init); +module_exit(ilo_exit); diff --git a/drivers/misc/hpilo.h b/drivers/misc/hpilo.h new file mode 100644 index 00000000000..a281207696c --- /dev/null +++ b/drivers/misc/hpilo.h @@ -0,0 +1,189 @@ +/* + * linux/drivers/char/hpilo.h + * + * Copyright (C) 2008 Hewlett-Packard Development Company, L.P. + * David Altobelli <david.altobelli@hp.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ +#ifndef __HPILO_H +#define __HPILO_H + +#define ILO_NAME "hpilo" + +/* max number of open channel control blocks per device, hw limited to 32 */ +#define MAX_CCB 8 +/* max number of supported devices */ +#define MAX_ILO_DEV 1 +/* max number of files */ +#define MAX_OPEN (MAX_CCB * MAX_ILO_DEV) + +/* + * Per device, used to track global memory allocations. + */ +struct ilo_hwinfo { + /* mmio registers on device */ + char __iomem *mmio_vaddr; + + /* doorbell registers on device */ + char __iomem *db_vaddr; + + /* shared memory on device used for channel control blocks */ + char __iomem *ram_vaddr; + + /* files corresponding to this device */ + struct ccb_data *ccb_alloc[MAX_CCB]; + + struct pci_dev *ilo_dev; + + spinlock_t alloc_lock; + spinlock_t fifo_lock; + + struct cdev cdev; +}; + +/* offset from mmio_vaddr */ +#define DB_OUT 0xD4 +/* DB_OUT reset bit */ +#define DB_RESET 26 + +/* + * Channel control block. Used to manage hardware queues. + * The format must match hw's version. The hw ccb is 128 bytes, + * but the context area shouldn't be touched by the driver. + */ +#define ILOSW_CCB_SZ 64 +#define ILOHW_CCB_SZ 128 +struct ccb { + union { + char *send_fifobar; + u64 padding1; + } ccb_u1; + union { + char *send_desc; + u64 padding2; + } ccb_u2; + u64 send_ctrl; + + union { + char *recv_fifobar; + u64 padding3; + } ccb_u3; + union { + char *recv_desc; + u64 padding4; + } ccb_u4; + u64 recv_ctrl; + + union { + char __iomem *db_base; + u64 padding5; + } ccb_u5; + + u64 channel; + + /* unused context area (64 bytes) */ +}; + +/* ccb queue parameters */ +#define SENDQ 1 +#define RECVQ 2 +#define NR_QENTRY 4 +#define L2_QENTRY_SZ 12 + +/* ccb ctrl bitfields */ +#define CTRL_BITPOS_L2SZ 0 +#define CTRL_BITPOS_FIFOINDEXMASK 4 +#define CTRL_BITPOS_DESCLIMIT 18 +#define CTRL_BITPOS_A 30 +#define CTRL_BITPOS_G 31 + +/* ccb doorbell macros */ +#define L2_DB_SIZE 14 +#define ONE_DB_SIZE (1 << L2_DB_SIZE) + +/* + * Per fd structure used to track the ccb allocated to that dev file. + */ +struct ccb_data { + /* software version of ccb, using virtual addrs */ + struct ccb driver_ccb; + + /* hardware version of ccb, using physical addrs */ + struct ccb ilo_ccb; + + /* hardware ccb is written to this shared mapped device memory */ + struct ccb __iomem *mapped_ccb; + + /* dma'able memory used for send/recv queues */ + void *dma_va; + dma_addr_t dma_pa; + size_t dma_size; + + /* pointer to hardware device info */ + struct ilo_hwinfo *ilo_hw; + + /* usage count, to allow for shared ccb's */ + int ccb_cnt; + + /* open wanted exclusive access to this ccb */ + int ccb_excl; +}; + +/* + * FIFO queue structure, shared with hw. + */ +#define ILO_START_ALIGN 4096 +#define ILO_CACHE_SZ 128 +struct fifo { + u64 nrents; /* user requested number of fifo entries */ + u64 imask; /* mask to extract valid fifo index */ + u64 merge; /* O/C bits to merge in during enqueue operation */ + u64 reset; /* set to non-zero when the target device resets */ + u8 pad_0[ILO_CACHE_SZ - (sizeof(u64) * 4)]; + + u64 head; + u8 pad_1[ILO_CACHE_SZ - (sizeof(u64))]; + + u64 tail; + u8 pad_2[ILO_CACHE_SZ - (sizeof(u64))]; + + u64 fifobar[1]; +}; + +/* convert between struct fifo, and the fifobar, which is saved in the ccb */ +#define FIFOHANDLESIZE (sizeof(struct fifo) - sizeof(u64)) +#define FIFOBARTOHANDLE(_fifo) \ + ((struct fifo *)(((char *)(_fifo)) - FIFOHANDLESIZE)) + +/* the number of qwords to consume from the entry descriptor */ +#define ENTRY_BITPOS_QWORDS 0 +/* descriptor index number (within a specified queue) */ +#define ENTRY_BITPOS_DESCRIPTOR 10 +/* state bit, fifo entry consumed by consumer */ +#define ENTRY_BITPOS_C 22 +/* state bit, fifo entry is occupied */ +#define ENTRY_BITPOS_O 23 + +#define ENTRY_BITS_QWORDS 10 +#define ENTRY_BITS_DESCRIPTOR 12 +#define ENTRY_BITS_C 1 +#define ENTRY_BITS_O 1 +#define ENTRY_BITS_TOTAL \ + (ENTRY_BITS_C + ENTRY_BITS_O + \ + ENTRY_BITS_QWORDS + ENTRY_BITS_DESCRIPTOR) + +/* extract various entry fields */ +#define ENTRY_MASK ((1 << ENTRY_BITS_TOTAL) - 1) +#define ENTRY_MASK_C (((1 << ENTRY_BITS_C) - 1) << ENTRY_BITPOS_C) +#define ENTRY_MASK_O (((1 << ENTRY_BITS_O) - 1) << ENTRY_BITPOS_O) +#define ENTRY_MASK_QWORDS \ + (((1 << ENTRY_BITS_QWORDS) - 1) << ENTRY_BITPOS_QWORDS) +#define ENTRY_MASK_DESCRIPTOR \ + (((1 << ENTRY_BITS_DESCRIPTOR) - 1) << ENTRY_BITPOS_DESCRIPTOR) + +#define ENTRY_MASK_NOSTATE (ENTRY_MASK >> (ENTRY_BITS_C + ENTRY_BITS_O)) + +#endif /* __HPILO_H */ diff --git a/drivers/misc/phantom.c b/drivers/misc/phantom.c index 18616247009..4ce3bdc2f95 100644 --- a/drivers/misc/phantom.c +++ b/drivers/misc/phantom.c @@ -399,8 +399,9 @@ static int __devinit phantom_probe(struct pci_dev *pdev, goto err_irq; } - if (IS_ERR(device_create(phantom_class, &pdev->dev, MKDEV(phantom_major, - minor), "phantom%u", minor))) + if (IS_ERR(device_create_drvdata(phantom_class, &pdev->dev, + MKDEV(phantom_major, minor), + NULL, "phantom%u", minor))) dev_err(&pdev->dev, "can't create device\n"); pci_set_drvdata(pdev, pht); diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c index 519d942e794..7b72a1b3611 100644 --- a/drivers/mtd/devices/block2mtd.c +++ b/drivers/mtd/devices/block2mtd.c @@ -241,6 +241,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) { struct block_device *bdev; struct block2mtd_dev *dev; + char *name; if (!devname) return NULL; @@ -279,12 +280,13 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size) /* Setup the MTD structure */ /* make the name contain the block device in */ - dev->mtd.name = kmalloc(sizeof("block2mtd: ") + strlen(devname), + name = kmalloc(sizeof("block2mtd: ") + strlen(devname) + 1, GFP_KERNEL); - if (!dev->mtd.name) + if (!name) goto devinit_err; - sprintf(dev->mtd.name, "block2mtd: %s", devname); + sprintf(name, "block2mtd: %s", devname); + dev->mtd.name = name; dev->mtd.size = dev->blkdev->bd_inode->i_size & PAGE_MASK; dev->mtd.erasesize = erase_size; diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index 129d429cd2d..aef9f4b687c 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -28,10 +28,13 @@ static void mtd_notify_add(struct mtd_info* mtd) if (!mtd) return; - device_create(mtd_class, NULL, MKDEV(MTD_CHAR_MAJOR, mtd->index*2), "mtd%d", mtd->index); + device_create_drvdata(mtd_class, NULL, + MKDEV(MTD_CHAR_MAJOR, mtd->index*2), + NULL, "mtd%d", mtd->index); - device_create(mtd_class, NULL, - MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), "mtd%dro", mtd->index); + device_create_drvdata(mtd_class, NULL, + MKDEV(MTD_CHAR_MAJOR, mtd->index*2+1), + NULL, "mtd%dro", mtd->index); } static void mtd_notify_remove(struct mtd_info* mtd) diff --git a/drivers/net/3c59x.c b/drivers/net/3c59x.c index aabad8ce745..8db4e6b8948 100644 --- a/drivers/net/3c59x.c +++ b/drivers/net/3c59x.c @@ -1010,7 +1010,7 @@ static int __devinit vortex_probe1(struct device *gendev, static int printed_version; int retval, print_info; struct vortex_chip_info * const vci = &vortex_info_tbl[chip_idx]; - char *print_name = "3c59x"; + const char *print_name = "3c59x"; struct pci_dev *pdev = NULL; struct eisa_device *edev = NULL; DECLARE_MAC_BUF(mac); diff --git a/drivers/net/arm/at91_ether.c b/drivers/net/arm/at91_ether.c index 1e39e78f177..71f7cec3091 100644 --- a/drivers/net/arm/at91_ether.c +++ b/drivers/net/arm/at91_ether.c @@ -677,7 +677,7 @@ static void at91ether_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo { strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); strlcpy(info->version, DRV_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, dev->dev.parent->bus_id, sizeof(info->bus_info)); + strlcpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info)); } static const struct ethtool_ops at91ether_ethtool_ops = { diff --git a/drivers/net/arm/ep93xx_eth.c b/drivers/net/arm/ep93xx_eth.c index ecd8fc6146e..7a14980f347 100644 --- a/drivers/net/arm/ep93xx_eth.c +++ b/drivers/net/arm/ep93xx_eth.c @@ -848,7 +848,7 @@ static int ep93xx_eth_probe(struct platform_device *pdev) ep->res = request_mem_region(pdev->resource[0].start, pdev->resource[0].end - pdev->resource[0].start + 1, - pdev->dev.bus_id); + dev_name(&pdev->dev)); if (ep->res == NULL) { dev_err(&pdev->dev, "Could not reserve memory region\n"); err = -ENOMEM; diff --git a/drivers/net/arm/etherh.c b/drivers/net/arm/etherh.c index e9d15eccad0..5c5f1e470d3 100644 --- a/drivers/net/arm/etherh.c +++ b/drivers/net/arm/etherh.c @@ -535,7 +535,7 @@ static int __init etherh_addr(char *addr, struct expansion_card *ec) if (!ecard_readchunk(&cd, ec, 0xf5, 0)) { printk(KERN_ERR "%s: unable to read podule description string\n", - ec->dev.bus_id); + dev_name(&ec->dev)); goto no_addr; } @@ -554,7 +554,7 @@ static int __init etherh_addr(char *addr, struct expansion_card *ec) } printk(KERN_ERR "%s: unable to parse MAC address: %s\n", - ec->dev.bus_id, cd.d.string); + dev_name(&ec->dev), cd.d.string); no_addr: return -ENODEV; @@ -585,7 +585,7 @@ static void etherh_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *i { strlcpy(info->driver, DRV_NAME, sizeof(info->driver)); strlcpy(info->version, DRV_VERSION, sizeof(info->version)); - strlcpy(info->bus_info, dev->dev.parent->bus_id, + strlcpy(info->bus_info, dev_name(dev->dev.parent), sizeof(info->bus_info)); } diff --git a/drivers/net/ppp_generic.c b/drivers/net/ppp_generic.c index 6b1d7a8edf1..739b3ab7bcc 100644 --- a/drivers/net/ppp_generic.c +++ b/drivers/net/ppp_generic.c @@ -866,7 +866,8 @@ static int __init ppp_init(void) err = PTR_ERR(ppp_class); goto out_chrdev; } - device_create(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), "ppp"); + device_create_drvdata(ppp_class, NULL, MKDEV(PPP_MAJOR, 0), + NULL, "ppp"); } out: diff --git a/drivers/net/wan/cosa.c b/drivers/net/wan/cosa.c index 5827324e9d9..f7d3349dc3e 100644 --- a/drivers/net/wan/cosa.c +++ b/drivers/net/wan/cosa.c @@ -397,9 +397,9 @@ static int __init cosa_init(void) err = PTR_ERR(cosa_class); goto out_chrdev; } - for (i=0; i<nr_cards; i++) { - device_create(cosa_class, NULL, MKDEV(cosa_major, i), "cosa%d", i); - } + for (i = 0; i < nr_cards; i++) + device_create_drvdata(cosa_class, NULL, MKDEV(cosa_major, i), + NULL, "cosa%d", i); err = 0; goto out; diff --git a/drivers/pci/hotplug/acpiphp.h b/drivers/pci/hotplug/acpiphp.h index eecf7cbf413..5a58b075dd8 100644 --- a/drivers/pci/hotplug/acpiphp.h +++ b/drivers/pci/hotplug/acpiphp.h @@ -36,7 +36,7 @@ #define _ACPIPHP_H #include <linux/acpi.h> -#include <linux/kobject.h> /* for KOBJ_NAME_LEN */ +#include <linux/kobject.h> #include <linux/mutex.h> #include <linux/pci_hotplug.h> @@ -51,7 +51,7 @@ #define warn(format, arg...) printk(KERN_WARNING "%s: " format, MY_NAME , ## arg) /* name size which is used for entries in pcihpfs */ -#define SLOT_NAME_SIZE KOBJ_NAME_LEN /* {_SUN} */ +#define SLOT_NAME_SIZE 20 /* {_SUN} */ struct acpiphp_bridge; struct acpiphp_slot; diff --git a/drivers/power/apm_power.c b/drivers/power/apm_power.c index a4892275659..936bae560fa 100644 --- a/drivers/power/apm_power.c +++ b/drivers/power/apm_power.c @@ -78,7 +78,7 @@ static void find_main_battery(void) main_battery = NULL; bp.main = main_battery; - error = class_for_each_device(power_supply_class, &bp, + error = class_for_each_device(power_supply_class, NULL, &bp, __find_main_battery); if (error) { main_battery = bp.main; diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c index af1633eb3b7..cb1ccb47292 100644 --- a/drivers/power/power_supply_core.c +++ b/drivers/power/power_supply_core.c @@ -41,7 +41,7 @@ static void power_supply_changed_work(struct work_struct *work) dev_dbg(psy->dev, "%s\n", __func__); - class_for_each_device(power_supply_class, psy, + class_for_each_device(power_supply_class, NULL, psy, __power_supply_changed_work); power_supply_update_leds(psy); @@ -79,7 +79,7 @@ int power_supply_am_i_supplied(struct power_supply *psy) { int error; - error = class_for_each_device(power_supply_class, psy, + error = class_for_each_device(power_supply_class, NULL, psy, __power_supply_am_i_supplied); dev_dbg(psy->dev, "%s %d\n", __func__, error); diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c index 58b7336640f..d397fa5f3a9 100644 --- a/drivers/rtc/interface.c +++ b/drivers/rtc/interface.c @@ -345,7 +345,7 @@ struct rtc_device *rtc_class_open(char *name) struct device *dev; struct rtc_device *rtc = NULL; - dev = class_find_device(rtc_class, name, __rtc_match); + dev = class_find_device(rtc_class, NULL, name, __rtc_match); if (dev) rtc = to_rtc_device(dev); diff --git a/drivers/s390/char/raw3270.c b/drivers/s390/char/raw3270.c index 81a96e01908..c3dee900a5c 100644 --- a/drivers/s390/char/raw3270.c +++ b/drivers/s390/char/raw3270.c @@ -1168,17 +1168,19 @@ static int raw3270_create_attributes(struct raw3270 *rp) if (rc) goto out; - rp->clttydev = device_create(class3270, &rp->cdev->dev, - MKDEV(IBM_TTY3270_MAJOR, rp->minor), - "tty%s", rp->cdev->dev.bus_id); + rp->clttydev = device_create_drvdata(class3270, &rp->cdev->dev, + MKDEV(IBM_TTY3270_MAJOR, rp->minor), + NULL, + "tty%s", rp->cdev->dev.bus_id); if (IS_ERR(rp->clttydev)) { rc = PTR_ERR(rp->clttydev); goto out_ttydev; } - rp->cltubdev = device_create(class3270, &rp->cdev->dev, - MKDEV(IBM_FS3270_MAJOR, rp->minor), - "tub%s", rp->cdev->dev.bus_id); + rp->cltubdev = device_create_drvdata(class3270, &rp->cdev->dev, + MKDEV(IBM_FS3270_MAJOR, rp->minor), + NULL, + "tub%s", rp->cdev->dev.bus_id); if (!IS_ERR(rp->cltubdev)) goto out; diff --git a/drivers/s390/char/tape_class.c b/drivers/s390/char/tape_class.c index 6dfdb7c1798..12c2a5aaf31 100644 --- a/drivers/s390/char/tape_class.c +++ b/drivers/s390/char/tape_class.c @@ -69,10 +69,9 @@ struct tape_class_device *register_tape_dev( if (rc) goto fail_with_cdev; - tcd->class_device = device_create(tape_class, device, - tcd->char_device->dev, - "%s", tcd->device_name - ); + tcd->class_device = device_create_drvdata(tape_class, device, + tcd->char_device->dev, + NULL, "%s", tcd->device_name); rc = IS_ERR(tcd->class_device) ? PTR_ERR(tcd->class_device) : 0; if (rc) goto fail_with_cdev; diff --git a/drivers/s390/char/vmur.c b/drivers/s390/char/vmur.c index b0ac44b2712..c1f352b8486 100644 --- a/drivers/s390/char/vmur.c +++ b/drivers/s390/char/vmur.c @@ -896,8 +896,9 @@ static int ur_set_online(struct ccw_device *cdev) goto fail_free_cdev; } - urd->device = device_create(vmur_class, NULL, urd->char_device->dev, - "%s", node_id); + urd->device = device_create_drvdata(vmur_class, NULL, + urd->char_device->dev, NULL, + "%s", node_id); if (IS_ERR(urd->device)) { rc = PTR_ERR(urd->device); TRACE("ur_set_online: device_create rc=%d\n", rc); diff --git a/drivers/sbus/sbus.c b/drivers/sbus/sbus.c index c37d7c2587f..73a86d09bba 100644 --- a/drivers/sbus/sbus.c +++ b/drivers/sbus/sbus.c @@ -78,7 +78,7 @@ static void __init fill_sbus_device(struct device_node *dp, struct sbus_dev *sde else sdev->ofdev.dev.parent = &sdev->bus->ofdev.dev; sdev->ofdev.dev.bus = &sbus_bus_type; - sprintf(sdev->ofdev.dev.bus_id, "sbus[%08x]", dp->node); + dev_set_name(&sdev->ofdev.dev, "sbus[%08x]", dp->node); if (of_device_register(&sdev->ofdev) != 0) printk(KERN_DEBUG "sbus: device registration error for %s!\n", @@ -257,11 +257,11 @@ static void __init build_one_sbus(struct device_node *dp, int num_sbus) sbus->ofdev.node = dp; sbus->ofdev.dev.parent = NULL; sbus->ofdev.dev.bus = &sbus_bus_type; - sprintf(sbus->ofdev.dev.bus_id, "sbus%d", num_sbus); + dev_set_name(&sbus->ofdev.dev, "sbus%d", num_sbus); if (of_device_register(&sbus->ofdev) != 0) printk(KERN_DEBUG "sbus: device registration error for %s!\n", - sbus->ofdev.dev.bus_id); + dev_name(&sbus->ofdev.dev)); dev_dp = dp->child; while (dev_dp) { diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index 2bc30e32b67..1fe0901e811 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -271,8 +271,8 @@ rebuild_sys_tab: pHba->initialized = TRUE; pHba->state &= ~DPTI_STATE_RESET; if (adpt_sysfs_class) { - struct device *dev = device_create(adpt_sysfs_class, - NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), + struct device *dev = device_create_drvdata(adpt_sysfs_class, + NULL, MKDEV(DPTI_I2O_MAJOR, pHba->unit), NULL, "dpti%d", pHba->unit); if (IS_ERR(dev)) { printk(KERN_WARNING"dpti%d: unable to " diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c index 35cd892dce0..fed0b02ebc1 100644 --- a/drivers/scsi/hosts.c +++ b/drivers/scsi/hosts.c @@ -232,8 +232,8 @@ int scsi_add_host(struct Scsi_Host *shost, struct device *dev) } if (shost->transportt->create_work_queue) { - snprintf(shost->work_q_name, KOBJ_NAME_LEN, "scsi_wq_%d", - shost->host_no); + snprintf(shost->work_q_name, sizeof(shost->work_q_name), + "scsi_wq_%d", shost->host_no); shost->work_q = create_singlethread_workqueue( shost->work_q_name); if (!shost->work_q) { @@ -466,7 +466,8 @@ struct Scsi_Host *scsi_host_lookup(unsigned short hostnum) struct device *cdev; struct Scsi_Host *shost = ERR_PTR(-ENXIO); - cdev = class_find_device(&shost_class, &hostnum, __scsi_host_match); + cdev = class_find_device(&shost_class, NULL, &hostnum, + __scsi_host_match); if (cdev) { shost = scsi_host_get(class_to_shost(cdev)); put_device(cdev); diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 5fd64e70029..a272b9a2c86 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -417,15 +417,16 @@ static int fc_host_setup(struct transport_container *tc, struct device *dev, fc_host->next_vport_number = 0; fc_host->npiv_vports_inuse = 0; - snprintf(fc_host->work_q_name, KOBJ_NAME_LEN, "fc_wq_%d", - shost->host_no); + snprintf(fc_host->work_q_name, sizeof(fc_host->work_q_name), + "fc_wq_%d", shost->host_no); fc_host->work_q = create_singlethread_workqueue( fc_host->work_q_name); if (!fc_host->work_q) return -ENOMEM; - snprintf(fc_host->devloss_work_q_name, KOBJ_NAME_LEN, "fc_dl_%d", - shost->host_no); + snprintf(fc_host->devloss_work_q_name, + sizeof(fc_host->devloss_work_q_name), + "fc_dl_%d", shost->host_no); fc_host->devloss_work_q = create_singlethread_workqueue( fc_host->devloss_work_q_name); if (!fc_host->devloss_work_q) { diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 3af7cbcc5c5..043c3921164 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -170,7 +170,7 @@ iscsi_create_endpoint(int dd_size) int err; for (id = 1; id < ISCSI_MAX_EPID; id++) { - dev = class_find_device(&iscsi_endpoint_class, &id, + dev = class_find_device(&iscsi_endpoint_class, NULL, &id, iscsi_match_epid); if (!dev) break; @@ -222,7 +222,7 @@ struct iscsi_endpoint *iscsi_lookup_endpoint(u64 handle) struct iscsi_endpoint *ep; struct device *dev; - dev = class_find_device(&iscsi_endpoint_class, &handle, + dev = class_find_device(&iscsi_endpoint_class, NULL, &handle, iscsi_match_epid); if (!dev) return NULL; @@ -247,8 +247,8 @@ static int iscsi_setup_host(struct transport_container *tc, struct device *dev, atomic_set(&ihost->nr_scans, 0); mutex_init(&ihost->mutex); - snprintf(ihost->scan_workq_name, KOBJ_NAME_LEN, "iscsi_scan_%d", - shost->host_no); + snprintf(ihost->scan_workq_name, sizeof(ihost->scan_workq_name), + "iscsi_scan_%d", shost->host_no); ihost->scan_workq = create_singlethread_workqueue( ihost->scan_workq_name); if (!ihost->scan_workq) diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 1ad12afc6ba..1771b2456bf 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -502,7 +502,7 @@ struct spi_master *spi_busnum_to_master(u16 bus_num) struct device *dev; struct spi_master *master = NULL; - dev = class_find_device(&spi_master_class, &bus_num, + dev = class_find_device(&spi_master_class, NULL, &bus_num, __spi_master_match); if (dev) master = container_of(dev, struct spi_master, dev); diff --git a/drivers/spi/spidev.c b/drivers/spi/spidev.c index ddbe1a5e970..2833fd772a2 100644 --- a/drivers/spi/spidev.c +++ b/drivers/spi/spidev.c @@ -576,7 +576,8 @@ static int spidev_probe(struct spi_device *spi) struct device *dev; spidev->devt = MKDEV(SPIDEV_MAJOR, minor); - dev = device_create(spidev_class, &spi->dev, spidev->devt, + dev = device_create_drvdata(spidev_class, &spi->dev, + spidev->devt, spidev, "spidev%d.%d", spi->master->bus_num, spi->chip_select); status = IS_ERR(dev) ? PTR_ERR(dev) : 0; @@ -586,7 +587,6 @@ static int spidev_probe(struct spi_device *spi) } if (status == 0) { set_bit(minor, minors); - spi_set_drvdata(spi, spidev); list_add(&spidev->device_entry, &device_list); } mutex_unlock(&device_list_lock); diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig index a4aaab9c7dd..2e9079df26b 100644 --- a/drivers/uio/Kconfig +++ b/drivers/uio/Kconfig @@ -15,7 +15,7 @@ if UIO config UIO_CIF tristate "generic Hilscher CIF Card driver" - depends on UIO && PCI + depends on PCI default n help Driver for Hilscher CIF DeviceNet and Profibus cards. This @@ -26,9 +26,15 @@ config UIO_CIF To compile this driver as a module, choose M here: the module will be called uio_cif. +config UIO_PDRV + tristate "Userspace I/O platform driver" + help + Generic platform driver for Userspace I/O devices. + + If you don't know what to do here, say N. + config UIO_SMX tristate "SMX cryptengine UIO interface" - depends on UIO default n help Userspace IO interface to the Cryptography engine found on the diff --git a/drivers/uio/Makefile b/drivers/uio/Makefile index 18c45662431..e00ce0def1a 100644 --- a/drivers/uio/Makefile +++ b/drivers/uio/Makefile @@ -1,3 +1,4 @@ obj-$(CONFIG_UIO) += uio.o obj-$(CONFIG_UIO_CIF) += uio_cif.o +obj-$(CONFIG_UIO_PDRV) += uio_pdrv.o obj-$(CONFIG_UIO_SMX) += uio_smx.o diff --git a/drivers/uio/uio.c b/drivers/uio/uio.c index 5a7ca2e6094..3a6934bf713 100644 --- a/drivers/uio/uio.c +++ b/drivers/uio/uio.c @@ -427,6 +427,31 @@ static ssize_t uio_read(struct file *filep, char __user *buf, return retval; } +static ssize_t uio_write(struct file *filep, const char __user *buf, + size_t count, loff_t *ppos) +{ + struct uio_listener *listener = filep->private_data; + struct uio_device *idev = listener->dev; + ssize_t retval; + s32 irq_on; + + if (idev->info->irq == UIO_IRQ_NONE) + return -EIO; + + if (count != sizeof(s32)) + return -EINVAL; + + if (!idev->info->irqcontrol) + return -ENOSYS; + + if (copy_from_user(&irq_on, buf, count)) + return -EFAULT; + + retval = idev->info->irqcontrol(idev->info, irq_on); + + return retval ? retval : sizeof(s32); +} + static int uio_find_mem_index(struct vm_area_struct *vma) { int mi; @@ -546,6 +571,7 @@ static const struct file_operations uio_fops = { .open = uio_open, .release = uio_release, .read = uio_read, + .write = uio_write, .mmap = uio_mmap, .poll = uio_poll, .fasync = uio_fasync, diff --git a/drivers/uio/uio_pdrv.c b/drivers/uio/uio_pdrv.c new file mode 100644 index 00000000000..5d0d2e85d98 --- /dev/null +++ b/drivers/uio/uio_pdrv.c @@ -0,0 +1,118 @@ +/* + * drivers/uio/uio_pdrv.c + * + * Copyright (C) 2008 by Digi International Inc. + * All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + */ +#include <linux/platform_device.h> +#include <linux/uio_driver.h> +#include <linux/stringify.h> + +#define DRIVER_NAME "uio" + +struct uio_platdata { + struct uio_info *uioinfo; +}; + +static int uio_pdrv_probe(struct platform_device *pdev) +{ + struct uio_info *uioinfo = pdev->dev.platform_data; + struct uio_platdata *pdata; + struct uio_mem *uiomem; + int ret = -ENODEV; + int i; + + if (!uioinfo || !uioinfo->name || !uioinfo->version) { + dev_dbg(&pdev->dev, "%s: err_uioinfo\n", __func__); + goto err_uioinfo; + } + + pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + ret = -ENOMEM; + dev_dbg(&pdev->dev, "%s: err_alloc_pdata\n", __func__); + goto err_alloc_pdata; + } + + pdata->uioinfo = uioinfo; + + uiomem = &uioinfo->mem[0]; + + for (i = 0; i < pdev->num_resources; ++i) { + struct resource *r = &pdev->resource[i]; + + if (r->flags != IORESOURCE_MEM) + continue; + + if (uiomem >= &uioinfo->mem[MAX_UIO_MAPS]) { + dev_warn(&pdev->dev, "device has more than " + __stringify(MAX_UIO_MAPS) + " I/O memory resources.\n"); + break; + } + + uiomem->memtype = UIO_MEM_PHYS; + uiomem->addr = r->start; + uiomem->size = r->end - r->start + 1; + ++uiomem; + } + + while (uiomem < &uioinfo->mem[MAX_UIO_MAPS]) { + uiomem->size = 0; + ++uiomem; + } + + pdata->uioinfo->priv = pdata; + + ret = uio_register_device(&pdev->dev, pdata->uioinfo); + + if (ret) { + kfree(pdata); +err_alloc_pdata: +err_uioinfo: + return ret; + } + + platform_set_drvdata(pdev, pdata); + + return 0; +} + +static int uio_pdrv_remove(struct platform_device *pdev) +{ + struct uio_platdata *pdata = platform_get_drvdata(pdev); + + uio_unregister_device(pdata->uioinfo); + + return 0; +} + +static struct platform_driver uio_pdrv = { + .probe = uio_pdrv_probe, + .remove = uio_pdrv_remove, + .driver = { + .name = DRIVER_NAME, + .owner = THIS_MODULE, + }, +}; + +static int __init uio_pdrv_init(void) +{ + return platform_driver_register(&uio_pdrv); +} + +static void __exit uio_pdrv_exit(void) +{ + platform_driver_unregister(&uio_pdrv); +} +module_init(uio_pdrv_init); +module_exit(uio_pdrv_exit); + +MODULE_AUTHOR("Uwe Kleine-Koenig"); +MODULE_DESCRIPTION("Userspace I/O platform driver"); +MODULE_LICENSE("GPL"); +MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c index 54a350ccd03..20290c5b156 100644 --- a/drivers/usb/core/devio.c +++ b/drivers/usb/core/devio.c @@ -1729,9 +1729,9 @@ static int usb_classdev_add(struct usb_device *dev) { struct device *cldev; - cldev = device_create(usb_classdev_class, &dev->dev, dev->dev.devt, - "usbdev%d.%d", dev->bus->busnum, - dev->devnum); + cldev = device_create_drvdata(usb_classdev_class, &dev->dev, + dev->dev.devt, NULL, "usbdev%d.%d", + dev->bus->busnum, dev->devnum); if (IS_ERR(cldev)) return PTR_ERR(cldev); dev->usb_classdev = cldev; @@ -1792,6 +1792,11 @@ int __init usb_devio_init(void) usb_classdev_class = NULL; goto out; } + /* devices of this class shadow the major:minor of their parent + * device, so clear ->dev_kobj to prevent adding duplicate entries + * to /sys/dev + */ + usb_classdev_class->dev_kobj = NULL; usb_register_notify(&usbdev_nb); #endif diff --git a/drivers/usb/core/file.c b/drivers/usb/core/file.c index 913fb866789..6b1b229e38c 100644 --- a/drivers/usb/core/file.c +++ b/drivers/usb/core/file.c @@ -196,8 +196,9 @@ int usb_register_dev(struct usb_interface *intf, ++temp; else temp = name; - intf->usb_dev = device_create(usb_class->class, &intf->dev, - MKDEV(USB_MAJOR, minor), "%s", temp); + intf->usb_dev = device_create_drvdata(usb_class->class, &intf->dev, + MKDEV(USB_MAJOR, minor), NULL, + "%s", temp); if (IS_ERR(intf->usb_dev)) { down_write(&minor_rwsem); usb_minors[intf->minor] = NULL; diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c index 9caaec3ae9a..49cd9e145a9 100644 --- a/drivers/usb/gadget/printer.c +++ b/drivers/usb/gadget/printer.c @@ -1360,8 +1360,8 @@ printer_bind(struct usb_gadget *gadget) /* Setup the sysfs files for the printer gadget. */ - dev->pdev = device_create(usb_gadget_class, NULL, g_printer_devno, - "g_printer"); + dev->pdev = device_create_drvdata(usb_gadget_class, NULL, + g_printer_devno, NULL, "g_printer"); if (IS_ERR(dev->pdev)) { ERROR(dev, "Failed to create device: g_printer\n"); goto fail; diff --git a/drivers/usb/mon/mon_bin.c b/drivers/usb/mon/mon_bin.c index 293a46247c3..6566fc0a322 100644 --- a/drivers/usb/mon/mon_bin.c +++ b/drivers/usb/mon/mon_bin.c @@ -1162,8 +1162,9 @@ int mon_bin_add(struct mon_bus *mbus, const struct usb_bus *ubus) if (minor >= MON_BIN_MAX_MINOR) return 0; - dev = device_create(mon_bin_class, ubus? ubus->controller: NULL, - MKDEV(MAJOR(mon_bin_dev0), minor), "usbmon%d", minor); + dev = device_create_drvdata(mon_bin_class, ubus? ubus->controller: NULL, + MKDEV(MAJOR(mon_bin_dev0), minor), NULL, + "usbmon%d", minor); if (IS_ERR(dev)) return 0; diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c index 24ee96c4e9e..07b6addbb3c 100644 --- a/drivers/video/aty/aty128fb.c +++ b/drivers/video/aty/aty128fb.c @@ -1872,7 +1872,7 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i struct fb_info *info = pci_get_drvdata(pdev); struct aty128fb_par *par = info->par; struct fb_var_screeninfo var; - char video_card[DEVICE_NAME_SIZE]; + char video_card[50]; u8 chip_rev; u32 dac; diff --git a/drivers/video/aty/radeonfb.h b/drivers/video/aty/radeonfb.h index c347e38cd0b..ccbfffd1280 100644 --- a/drivers/video/aty/radeonfb.h +++ b/drivers/video/aty/radeonfb.h @@ -289,7 +289,7 @@ struct radeonfb_info { struct radeon_regs state; struct radeon_regs init_state; - char name[DEVICE_NAME_SIZE]; + char name[50]; unsigned long mmio_base_phys; unsigned long fb_base_phys; diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c index 97aff8db10b..4be3b46c069 100644 --- a/drivers/video/console/fbcon.c +++ b/drivers/video/console/fbcon.c @@ -3586,7 +3586,8 @@ static int __init fb_console_init(void) acquire_console_sem(); fb_register_client(&fbcon_event_notifier); - fbcon_device = device_create(fb_class, NULL, MKDEV(0, 0), "fbcon"); + fbcon_device = device_create_drvdata(fb_class, NULL, MKDEV(0, 0), + NULL, "fbcon"); if (IS_ERR(fbcon_device)) { printk(KERN_WARNING "Unable to create device " diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c index 33ebdb198da..1cd5071e536 100644 --- a/drivers/video/fbmem.c +++ b/drivers/video/fbmem.c @@ -1439,8 +1439,9 @@ register_framebuffer(struct fb_info *fb_info) break; fb_info->node = i; - fb_info->dev = device_create(fb_class, fb_info->device, - MKDEV(FB_MAJOR, i), "fb%d", i); + fb_info->dev = device_create_drvdata(fb_class, fb_info->device, + MKDEV(FB_MAJOR, i), NULL, + "fb%d", i); if (IS_ERR(fb_info->dev)) { /* Not fatal */ printk(KERN_WARNING "Unable to create device for framebuffer %d; errno = %ld\n", i, PTR_ERR(fb_info->dev)); diff --git a/drivers/xen/balloon.c b/drivers/xen/balloon.c index 591bc29b55f..d4427cb8697 100644 --- a/drivers/xen/balloon.c +++ b/drivers/xen/balloon.c @@ -610,6 +610,7 @@ static ssize_t show_target_kb(struct sys_device *dev, char *buf) } static ssize_t store_target_kb(struct sys_device *dev, + struct sysdev_attribute *attr, const char *buf, size_t count) { |