From 3514faca19a6fdc209734431c509631ea92b094e Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 16 Oct 2007 10:11:44 -0600 Subject: kobject: remove struct kobj_type from struct kset We don't need a "default" ktype for a kset. We should set this explicitly every time for each kset. This change is needed so that we can make ksets dynamic, and cleans up one of the odd, undocumented assumption that the kset/kobject/ktype model has. This patch is based on a lot of help from Kay Sievers. Nasty bug in the block code was found by Dave Young Cc: Kay Sievers Cc: Dave Young Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index a863bb091e11..8ad98924cddb 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -71,7 +71,7 @@ static struct kobj_type class_ktype = { }; /* Hotplug events for classes go to the class_obj subsys */ -static decl_subsys(class, &class_ktype, NULL); +static decl_subsys(class, NULL); int class_create_file(struct class * cls, const struct class_attribute * attr) @@ -150,6 +150,7 @@ int class_register(struct class * cls) return error; cls->subsys.kobj.kset = &class_subsys; + cls->subsys.kobj.ktype = &class_ktype; error = subsystem_register(&cls->subsys); if (!error) { @@ -452,7 +453,7 @@ static struct kset_uevent_ops class_uevent_ops = { .uevent = class_uevent, }; -static decl_subsys(class_obj, &class_device_ktype, &class_uevent_ops); +static decl_subsys(class_obj, &class_uevent_ops); static int class_device_add_attrs(struct class_device * cd) @@ -537,7 +538,8 @@ static struct class_device_attribute class_uevent_attr = void class_device_initialize(struct class_device *class_dev) { - kobj_set_kset_s(class_dev, class_obj_subsys); + class_dev->kobj.kset = &class_obj_subsys; + class_dev->kobj.ktype = &class_device_ktype; kobject_init(&class_dev->kobj); INIT_LIST_HEAD(&class_dev->node); } -- cgit v1.2.3 From 443dbf9007854ef2892226615e23b60a35b89697 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 29 Oct 2007 23:22:26 -0500 Subject: kset: convert drivers/base/class.c to use kset_create Dynamically create the kset instead of declaring it statically. The class_obj subsystem is not yet converted as it is more complex and should be going away soon with the removal of class_device from the kernel tree. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 12 +++++------- 1 file changed, 5 insertions(+), 7 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 8ad98924cddb..d8a92c650b43 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -71,7 +71,7 @@ static struct kobj_type class_ktype = { }; /* Hotplug events for classes go to the class_obj subsys */ -static decl_subsys(class, NULL); +static struct kset *class_kset; int class_create_file(struct class * cls, const struct class_attribute * attr) @@ -149,7 +149,7 @@ int class_register(struct class * cls) if (error) return error; - cls->subsys.kobj.kset = &class_subsys; + cls->subsys.kobj.kset = class_kset; cls->subsys.kobj.ktype = &class_ktype; error = subsystem_register(&cls->subsys); @@ -855,11 +855,9 @@ void class_interface_unregister(struct class_interface *class_intf) int __init classes_init(void) { - int retval; - - retval = subsystem_register(&class_subsys); - if (retval) - return retval; + class_kset = kset_create_and_add("class", NULL, NULL); + if (!class_kset) + return -ENOMEM; /* ick, this is ugly, the things we go through to keep from showing up * in sysfs... */ -- cgit v1.2.3 From 5c03c7ab886859eb195440dbb6ccb8c30c4e84cc Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Fri, 2 Nov 2007 16:19:59 -0700 Subject: kset: remove decl_subsys macro This macro is no longer used. ksets should be created dynamically with a call to kset_create_and_add() not declared statically. Yes, there are 5 remaining static struct kset usages in the kernel tree, but they will be fixed up soon. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index d8a92c650b43..304f90eb9b00 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -453,8 +453,15 @@ static struct kset_uevent_ops class_uevent_ops = { .uevent = class_uevent, }; -static decl_subsys(class_obj, &class_uevent_ops); - +/* + * DO NOT copy how this is created, kset_create_and_add() should be + * called, but this is a hold-over from the old-way and will be deleted + * entirely soon. + */ +static struct kset class_obj_subsys = { + .kobj = { .k_name = "class_obj", }, + .uevent_ops = &class_uevent_ops, +}; static int class_device_add_attrs(struct class_device * cd) { -- cgit v1.2.3 From 2fb9113b974c3c7c43e76647bd5077238e274e1c Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 6 Nov 2007 15:03:30 -0800 Subject: kobject: remove subsystem_(un)register functions These functions are no longer used and are the last remants of the old subsystem crap. So delete them for good. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 304f90eb9b00..3ffcda753e78 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -152,7 +152,7 @@ int class_register(struct class * cls) cls->subsys.kobj.kset = class_kset; cls->subsys.kobj.ktype = &class_ktype; - error = subsystem_register(&cls->subsys); + error = kset_register(&cls->subsys); if (!error) { error = add_class_attrs(class_get(cls)); class_put(cls); @@ -164,7 +164,7 @@ void class_unregister(struct class * cls) { pr_debug("device class '%s': unregistering\n", cls->name); remove_class_attrs(cls); - subsystem_unregister(&cls->subsys); + kset_unregister(&cls->subsys); } static void class_create_release(struct class *cls) -- cgit v1.2.3 From 60728d62e4d273776e9ef9704f9ff8e8a248a8a1 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 17 Dec 2007 23:05:35 -0700 Subject: Kobject: convert drivers/base/class.c to use kobject_init/add_ng() This converts the code to use the new kobject functions, cleaning up the logic in doing so. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 3ffcda753e78..ba6745b0fd2f 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -546,8 +546,7 @@ static struct class_device_attribute class_uevent_attr = void class_device_initialize(struct class_device *class_dev) { class_dev->kobj.kset = &class_obj_subsys; - class_dev->kobj.ktype = &class_device_ktype; - kobject_init(&class_dev->kobj); + kobject_init_ng(&class_dev->kobj, &class_device_ktype); INIT_LIST_HEAD(&class_dev->node); } @@ -575,16 +574,13 @@ int class_device_add(struct class_device *class_dev) class_dev->class_id); /* first, register with generic layer. */ - error = kobject_set_name(&class_dev->kobj, "%s", class_dev->class_id); - if (error) - goto out2; - if (parent_class_dev) class_dev->kobj.parent = &parent_class_dev->kobj; else class_dev->kobj.parent = &parent_class->subsys.kobj; - error = kobject_add(&class_dev->kobj); + error = kobject_add_ng(&class_dev->kobj, class_dev->kobj.parent, + "%s", class_dev->class_id); if (error) goto out2; -- cgit v1.2.3 From edfaa7c36574f1bf09c65ad602412db9da5f96bf Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Mon, 21 May 2007 22:08:01 +0200 Subject: Driver core: convert block from raw kobjects to core devices This moves the block devices to /sys/class/block. It will create a flat list of all block devices, with the disks and partitions in one directory. For compatibility /sys/block is created and contains symlinks to the disks. /sys/class/block |-- sda -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda |-- sda1 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda1 |-- sda10 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda10 |-- sda5 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda5 |-- sda6 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda6 |-- sda7 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda7 |-- sda8 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda8 |-- sda9 -> ../../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda/sda9 `-- sr0 -> ../../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0 /sys/block/ |-- sda -> ../devices/pci0000:00/0000:00:1f.2/host0/target0:0:0/0:0:0:0/block/sda `-- sr0 -> ../devices/pci0000:00/0000:00:1f.2/host1/target1:0:0/1:0:0:0/block/sr0 Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index ba6745b0fd2f..624b3316e938 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "base.h" #define to_class_attr(_attr) container_of(_attr, struct class_attribute, attr) @@ -149,7 +150,13 @@ int class_register(struct class * cls) if (error) return error; +#ifdef CONFIG_SYSFS_DEPRECATED + /* let the block class directory show up in the root of sysfs */ + if (cls != &block_class) + cls->subsys.kobj.kset = class_kset; +#else cls->subsys.kobj.kset = class_kset; +#endif cls->subsys.kobj.ktype = &class_ktype; error = kset_register(&cls->subsys); -- cgit v1.2.3 From b2d6db5878a0832659ed58476357eea2db915550 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 17 Dec 2007 23:05:35 -0700 Subject: Kobject: rename kobject_add_ng() to kobject_add() Now that the old kobject_add() function is gone, rename kobject_add_ng() to kobject_add() to clean up the namespace. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 624b3316e938..8e3cba224384 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -586,8 +586,8 @@ int class_device_add(struct class_device *class_dev) else class_dev->kobj.parent = &parent_class->subsys.kobj; - error = kobject_add_ng(&class_dev->kobj, class_dev->kobj.parent, - "%s", class_dev->class_id); + error = kobject_add(&class_dev->kobj, class_dev->kobj.parent, + "%s", class_dev->class_id); if (error) goto out2; -- cgit v1.2.3 From f9cb074bff8e762ef24c44678a5a7d907f82fbeb Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Mon, 17 Dec 2007 23:05:35 -0700 Subject: Kobject: rename kobject_init_ng() to kobject_init() Now that the old kobject_init() function is gone, rename kobject_init_ng() to kobject_init() to clean up the namespace. Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 8e3cba224384..61fd26cc9f0e 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -553,7 +553,7 @@ static struct class_device_attribute class_uevent_attr = void class_device_initialize(struct class_device *class_dev) { class_dev->kobj.kset = &class_obj_subsys; - kobject_init_ng(&class_dev->kobj, &class_device_ktype); + kobject_init(&class_dev->kobj, &class_device_ktype); INIT_LIST_HEAD(&class_dev->node); } -- cgit v1.2.3 From af5ca3f4ec5cc4432a42a73b050dd8898ce8fd00 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Thu, 20 Dec 2007 02:09:39 +0100 Subject: Driver core: change sysdev classes to use dynamic kobject names All kobjects require a dynamically allocated name now. We no longer need to keep track if the name is statically assigned, we can just unconditionally free() all kobject names on cleanup. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 61fd26cc9f0e..b962a76875d2 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -466,7 +466,6 @@ static struct kset_uevent_ops class_uevent_ops = { * entirely soon. */ static struct kset class_obj_subsys = { - .kobj = { .k_name = "class_obj", }, .uevent_ops = &class_uevent_ops, }; @@ -872,6 +871,7 @@ int __init classes_init(void) /* ick, this is ugly, the things we go through to keep from showing up * in sysfs... */ kset_init(&class_obj_subsys); + kobject_set_name(&class_obj_subsys.kobj, "class_obj"); if (!class_obj_subsys.kobj.parent) class_obj_subsys.kobj.parent = &class_obj_subsys.kobj; return 0; -- cgit v1.2.3 From fd04897bb20be29d60f7e426a053545aebeaa61a Mon Sep 17 00:00:00 2001 From: Dave Young Date: Tue, 22 Jan 2008 15:27:08 +0800 Subject: Driver Core: add class iteration api Add the following class iteration functions for driver use: class_for_each_device class_find_device class_for_each_child class_find_child Signed-off-by: Dave Young Acked-by: Cornelia Huck Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 133 +++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 133 insertions(+) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index b962a76875d2..9f737ff0fc71 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -809,6 +809,139 @@ void class_device_put(struct class_device *class_dev) kobject_put(&class_dev->kobj); } +/** + * class_for_each_device - device iterator + * @class: the class we're iterating + * @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. + * + * 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 + * 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 *)) +{ + struct device *dev; + int error = 0; + + if (!class) + return -EINVAL; + down(&class->sem); + list_for_each_entry(dev, &class->devices, node) { + dev = get_device(dev); + if (dev) { + error = fn(dev, data); + put_device(dev); + } else + error = -ENODEV; + if (error) + break; + } + up(&class->sem); + + return error; +} +EXPORT_SYMBOL_GPL(class_for_each_device); + +/** + * class_find_device - device iterator for locating a particular device + * @class: the class we're iterating + * @data: data for the match function + * @match: function to check device + * + * This is similar to the class_for_each_dev() function above, but it + * returns a reference to a device that is 'found' for later use, as + * determined by the @match callback. + * + * The callback should return 0 if the device doesn't match and non-zero + * if it does. If the callback returns non-zero, this function will + * return to the caller and not iterate over any more devices. + + * 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 + * 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 *dev; + int found = 0; + + if (!class) + return NULL; + + down(&class->sem); + list_for_each_entry(dev, &class->devices, node) { + dev = get_device(dev); + if (dev) { + if (match(dev, data)) { + found = 1; + break; + } else + put_device(dev); + } else + break; + } + up(&class->sem); + + return found ? dev : NULL; +} +EXPORT_SYMBOL_GPL(class_find_device); + +/** + * class_find_child - device iterator for locating a particular class_device + * @class: the class we're iterating + * @data: data for the match function + * @match: function to check class_device + * + * This function returns a reference to a class_device that is 'found' for + * later use, as determined by the @match callback. + * + * The callback should return 0 if the class_device doesn't match and non-zero + * if it does. If the callback returns non-zero, this function will + * return to the caller and not iterate over any more class_devices. + * + * Note, you will need to drop the reference with class_device_put() after use. + * + * We hold class->sem 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 class_device *class_find_child(struct class *class, void *data, + int (*match)(struct class_device *, void *)) +{ + struct class_device *dev; + int found = 0; + + if (!class) + return NULL; + + down(&class->sem); + list_for_each_entry(dev, &class->children, node) { + dev = class_device_get(dev); + if (dev) { + if (match(dev, data)) { + found = 1; + break; + } else + class_device_put(dev); + } else + break; + } + up(&class->sem); + + return found ? dev : NULL; +} +EXPORT_SYMBOL_GPL(class_find_child); int class_interface_register(struct class_interface *class_intf) { -- cgit v1.2.3 From 4a3ad20ccd8f4d2a0535cf98fa83f7b561ba59a9 Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Thu, 24 Jan 2008 22:50:12 -0800 Subject: Driver core: coding style fixes Fix up a number of coding style issues in the drivers/base/ directory that have annoyed me over the years. checkpatch.pl is now very happy. Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 140 +++++++++++++++++++++++++-------------------------- 1 file changed, 70 insertions(+), 70 deletions(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 9f737ff0fc71..59cf35894cfc 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -23,11 +23,11 @@ #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) +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_attribute *class_attr = to_class_attr(attr); + struct class *dc = to_class(kobj); ssize_t ret = -EIO; if (class_attr->show) @@ -35,12 +35,11 @@ class_attr_show(struct kobject * kobj, struct attribute * attr, char * buf) return ret; } -static ssize_t -class_attr_store(struct kobject * kobj, struct attribute * attr, - const char * buf, size_t count) +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_attribute *class_attr = to_class_attr(attr); + struct class *dc = to_class(kobj); ssize_t ret = -EIO; if (class_attr->store) @@ -48,7 +47,7 @@ class_attr_store(struct kobject * kobj, struct attribute * attr, return ret; } -static void class_release(struct kobject * kobj) +static void class_release(struct kobject *kobj) { struct class *class = to_class(kobj); @@ -75,17 +74,17 @@ static struct kobj_type class_ktype = { static struct kset *class_kset; -int class_create_file(struct class * cls, const struct class_attribute * attr) +int class_create_file(struct class *cls, const struct class_attribute *attr) { int error; - if (cls) { + if (cls) error = sysfs_create_file(&cls->subsys.kobj, &attr->attr); - } else + else error = -EINVAL; return error; } -void class_remove_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); @@ -94,48 +93,48 @@ void class_remove_file(struct class * cls, const struct class_attribute * attr) static struct class *class_get(struct class *cls) { if (cls) - return container_of(kset_get(&cls->subsys), struct class, subsys); + return container_of(kset_get(&cls->subsys), + struct class, subsys); return NULL; } -static void class_put(struct class * cls) +static void class_put(struct class *cls) { if (cls) kset_put(&cls->subsys); } - -static int add_class_attrs(struct class * cls) +static int add_class_attrs(struct class *cls) { int i; int error = 0; if (cls->class_attrs) { for (i = 0; attr_name(cls->class_attrs[i]); i++) { - error = class_create_file(cls,&cls->class_attrs[i]); + error = class_create_file(cls, &cls->class_attrs[i]); if (error) - goto Err; + goto error; } } - Done: +done: return error; - Err: +error: while (--i >= 0) - class_remove_file(cls,&cls->class_attrs[i]); - goto Done; + class_remove_file(cls, &cls->class_attrs[i]); + goto done; } -static void remove_class_attrs(struct class * cls) +static void remove_class_attrs(struct class *cls) { int i; if (cls->class_attrs) { for (i = 0; attr_name(cls->class_attrs[i]); i++) - class_remove_file(cls,&cls->class_attrs[i]); + class_remove_file(cls, &cls->class_attrs[i]); } } -int class_register(struct class * cls) +int class_register(struct class *cls) { int error; @@ -167,7 +166,7 @@ int class_register(struct class * cls) return error; } -void class_unregister(struct class * cls) +void class_unregister(struct class *cls) { pr_debug("device class '%s': unregistering\n", cls->name); remove_class_attrs(cls); @@ -249,8 +248,8 @@ void class_destroy(struct class *cls) /* Class Device Stuff */ -int class_device_create_file(struct class_device * class_dev, - const struct class_device_attribute * attr) +int class_device_create_file(struct class_device *class_dev, + const struct class_device_attribute *attr) { int error = -EINVAL; if (class_dev) @@ -258,8 +257,8 @@ int class_device_create_file(struct class_device * class_dev, return error; } -void class_device_remove_file(struct class_device * class_dev, - const struct class_device_attribute * attr) +void class_device_remove_file(struct class_device *class_dev, + const struct class_device_attribute *attr) { if (class_dev) sysfs_remove_file(&class_dev->kobj, &attr->attr); @@ -281,12 +280,11 @@ void class_device_remove_bin_file(struct class_device *class_dev, sysfs_remove_bin_file(&class_dev->kobj, attr); } -static ssize_t -class_device_attr_show(struct kobject * kobj, struct attribute * attr, - char * buf) +static ssize_t class_device_attr_show(struct kobject *kobj, + struct attribute *attr, char *buf) { - struct class_device_attribute * class_dev_attr = to_class_dev_attr(attr); - struct class_device * cd = to_class_dev(kobj); + struct class_device_attribute *class_dev_attr = to_class_dev_attr(attr); + struct class_device *cd = to_class_dev(kobj); ssize_t ret = 0; if (class_dev_attr->show) @@ -294,12 +292,12 @@ class_device_attr_show(struct kobject * kobj, struct attribute * attr, return ret; } -static ssize_t -class_device_attr_store(struct kobject * kobj, struct attribute * attr, - const char * buf, size_t count) +static ssize_t class_device_attr_store(struct kobject *kobj, + struct attribute *attr, + const char *buf, size_t count) { - struct class_device_attribute * class_dev_attr = to_class_dev_attr(attr); - struct class_device * cd = to_class_dev(kobj); + struct class_device_attribute *class_dev_attr = to_class_dev_attr(attr); + struct class_device *cd = to_class_dev(kobj); ssize_t ret = 0; if (class_dev_attr->store) @@ -312,10 +310,10 @@ static struct sysfs_ops class_dev_sysfs_ops = { .store = class_device_attr_store, }; -static void class_dev_release(struct kobject * kobj) +static void class_dev_release(struct kobject *kobj) { struct class_device *cd = to_class_dev(kobj); - struct class * cls = cd->class; + struct class *cls = cd->class; pr_debug("device class '%s': release.\n", cd->class_id); @@ -324,8 +322,8 @@ static void class_dev_release(struct kobject * kobj) else if (cls->release) cls->release(cd); else { - printk(KERN_ERR "Class Device '%s' does not have a release() function, " - "it is broken and must be fixed.\n", + printk(KERN_ERR "Class Device '%s' does not have a release() " + "function, it is broken and must be fixed.\n", cd->class_id); WARN_ON(1); } @@ -436,7 +434,8 @@ static int class_uevent(struct kset *kset, struct kobject *kobj, add_uevent_var(env, "PHYSDEVBUS=%s", dev->bus->name); if (dev->driver) - add_uevent_var(env, "PHYSDEVDRIVER=%s", dev->driver->name); + add_uevent_var(env, "PHYSDEVDRIVER=%s", + dev->driver->name); } if (class_dev->uevent) { @@ -469,40 +468,40 @@ static struct kset class_obj_subsys = { .uevent_ops = &class_uevent_ops, }; -static int class_device_add_attrs(struct class_device * cd) +static int class_device_add_attrs(struct class_device *cd) { int i; int error = 0; - struct class * cls = cd->class; + struct class *cls = cd->class; if (cls->class_dev_attrs) { for (i = 0; attr_name(cls->class_dev_attrs[i]); i++) { error = class_device_create_file(cd, - &cls->class_dev_attrs[i]); + &cls->class_dev_attrs[i]); if (error) - goto Err; + goto err; } } - Done: +done: return error; - Err: +err: while (--i >= 0) - class_device_remove_file(cd,&cls->class_dev_attrs[i]); - goto Done; + class_device_remove_file(cd, &cls->class_dev_attrs[i]); + goto done; } -static void class_device_remove_attrs(struct class_device * cd) +static void class_device_remove_attrs(struct class_device *cd) { int i; - struct class * cls = cd->class; + struct class *cls = cd->class; if (cls->class_dev_attrs) { for (i = 0; attr_name(cls->class_dev_attrs[i]); i++) - class_device_remove_file(cd,&cls->class_dev_attrs[i]); + class_device_remove_file(cd, &cls->class_dev_attrs[i]); } } -static int class_device_add_groups(struct class_device * cd) +static int class_device_add_groups(struct class_device *cd) { int i; int error = 0; @@ -512,7 +511,8 @@ static int class_device_add_groups(struct class_device * cd) error = sysfs_create_group(&cd->kobj, cd->groups[i]); if (error) { while (--i >= 0) - sysfs_remove_group(&cd->kobj, cd->groups[i]); + sysfs_remove_group(&cd->kobj, + cd->groups[i]); goto out; } } @@ -521,14 +521,12 @@ out: return error; } -static void class_device_remove_groups(struct class_device * cd) +static void class_device_remove_groups(struct class_device *cd) { int i; - if (cd->groups) { - for (i = 0; cd->groups[i]; i++) { + if (cd->groups) + for (i = 0; cd->groups[i]; i++) sysfs_remove_group(&cd->kobj, cd->groups[i]); - } - } } static ssize_t show_dev(struct class_device *class_dev, char *buf) @@ -653,7 +651,7 @@ int class_device_add(struct class_device *class_dev) out3: kobject_del(&class_dev->kobj); out2: - if(parent_class_dev) + if (parent_class_dev) class_device_put(parent_class_dev); class_put(parent_class); out1: @@ -670,9 +668,11 @@ int class_device_register(struct class_device *class_dev) /** * class_device_create - creates a class device and registers it with sysfs * @cls: pointer to the struct class that this device should be registered to. - * @parent: pointer to the parent struct class_device of this new device, if any. + * @parent: pointer to the parent struct class_device of this new device, if + * any. * @devt: the dev_t for the char device to be added. - * @device: a pointer to a struct device that is assiociated with this class device. + * @device: a pointer to a struct device that is assiociated with this class + * device. * @fmt: string for the class device's name * * This function can be used by char device classes. A struct @@ -796,7 +796,7 @@ void class_device_destroy(struct class *cls, dev_t devt) class_device_unregister(class_dev); } -struct class_device * class_device_get(struct class_device *class_dev) +struct class_device *class_device_get(struct class_device *class_dev) { if (class_dev) return to_class_dev(kobject_get(&class_dev->kobj)); @@ -973,7 +973,7 @@ int class_interface_register(struct class_interface *class_intf) void class_interface_unregister(struct class_interface *class_intf) { - struct class * parent = class_intf->class; + struct class *parent = class_intf->class; struct class_device *class_dev; struct device *dev; -- cgit v1.2.3 From 4e886c29610f4374d8971ec7a248f011cc3bd73a Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Sun, 27 Jan 2008 12:12:43 -0800 Subject: Driver core: Fix up build when CONFIG_BLOCK=N This fixes up the driver core build errors when CONFIG_BLOCK=N Thanks to Alexander van Heukelum for the basis of this patch, and to Jeremy Fitzhardinge for reporting the problem. Cc: Alexander van Heukelum Cc: Jeremy Fitzhardinge Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- drivers/base/class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 59cf35894cfc..d916bbf5b72a 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -149,7 +149,7 @@ int class_register(struct class *cls) if (error) return error; -#ifdef CONFIG_SYSFS_DEPRECATED +#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; -- cgit v1.2.3 From a63ca8f65dd38519144d727c16e1a38342a474b8 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 30 Jan 2008 11:51:08 -0800 Subject: docbook: fix drivers/base/class warning Fix kernel-doc empty line warning: Warning(linux-2.6.24-git8//drivers/base/class.c:866): bad line: Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- drivers/base/class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/base/class.c') diff --git a/drivers/base/class.c b/drivers/base/class.c index 59cf35894cfc..412fd9a05573 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -863,7 +863,7 @@ EXPORT_SYMBOL_GPL(class_for_each_device); * The callback should return 0 if the device doesn't match and non-zero * if it does. If the callback returns non-zero, this function will * return to the caller and not iterate over any more devices. - + * * 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 -- cgit v1.2.3