diff options
Diffstat (limited to 'drivers/base')
-rw-r--r-- | drivers/base/attribute_container.c | 1 | ||||
-rw-r--r-- | drivers/base/bus.c | 1 | ||||
-rw-r--r-- | drivers/base/class.c | 2 | ||||
-rw-r--r-- | drivers/base/core.c | 6 | ||||
-rw-r--r-- | drivers/base/cpu.c | 17 | ||||
-rw-r--r-- | drivers/base/devres.c | 1 | ||||
-rw-r--r-- | drivers/base/devtmpfs.c | 1 | ||||
-rw-r--r-- | drivers/base/dma-coherent.c | 1 | ||||
-rw-r--r-- | drivers/base/dma-mapping.c | 1 | ||||
-rw-r--r-- | drivers/base/driver.c | 1 | ||||
-rw-r--r-- | drivers/base/firmware_class.c | 3 | ||||
-rw-r--r-- | drivers/base/memory.c | 18 | ||||
-rw-r--r-- | drivers/base/module.c | 1 | ||||
-rw-r--r-- | drivers/base/node.c | 8 | ||||
-rw-r--r-- | drivers/base/platform.c | 33 | ||||
-rw-r--r-- | drivers/base/power/main.c | 31 | ||||
-rw-r--r-- | drivers/base/sys.c | 1 |
17 files changed, 103 insertions, 24 deletions
diff --git a/drivers/base/attribute_container.c b/drivers/base/attribute_container.c index b9cda053d3c0..8fc200b2e2c0 100644 --- a/drivers/base/attribute_container.c +++ b/drivers/base/attribute_container.c @@ -328,6 +328,7 @@ attribute_container_add_attrs(struct device *classdev) return sysfs_create_group(&classdev->kobj, cont->grp); for (i = 0; attrs[i]; i++) { + sysfs_attr_init(&attrs[i]->attr); error = device_create_file(classdev, attrs[i]); if (error) return error; diff --git a/drivers/base/bus.c b/drivers/base/bus.c index 71f6af5c8b0b..12eec3f633b1 100644 --- a/drivers/base/bus.c +++ b/drivers/base/bus.c @@ -13,6 +13,7 @@ #include <linux/device.h> #include <linux/module.h> #include <linux/errno.h> +#include <linux/slab.h> #include <linux/init.h> #include <linux/string.h> #include "base.h" diff --git a/drivers/base/class.c b/drivers/base/class.c index 0147f476b8a9..9c6a0d6408e7 100644 --- a/drivers/base/class.c +++ b/drivers/base/class.c @@ -219,6 +219,8 @@ static void class_create_release(struct class *cls) * This is used to create a struct class pointer that can then be used * in calls to device_create(). * + * Returns &struct class pointer on success, or ERR_PTR() on error. + * * Note, the pointer created here is to be destroyed when finished by * making a call to class_destroy(). */ diff --git a/drivers/base/core.c b/drivers/base/core.c index ef55df34ddd0..b56a0ba31d4a 100644 --- a/drivers/base/core.c +++ b/drivers/base/core.c @@ -1345,6 +1345,8 @@ static void root_device_release(struct device *dev) * 'module' symlink which points to the @owner directory * in sysfs. * + * Returns &struct device pointer on success, or ERR_PTR() on error. + * * Note: You probably want to use root_device_register(). */ struct device *__root_device_register(const char *name, struct module *owner) @@ -1432,6 +1434,8 @@ static void device_create_release(struct device *dev) * Any further sysfs files that might be required can be created using this * pointer. * + * Returns &struct device pointer on success, or ERR_PTR() on error. + * * Note: the struct class passed to this function must have previously * been created with a call to class_create(). */ @@ -1492,6 +1496,8 @@ EXPORT_SYMBOL_GPL(device_create_vargs); * Any further sysfs files that might be required can be created using this * pointer. * + * Returns &struct device pointer on success, or ERR_PTR() on error. + * * Note: the struct class passed to this function must have previously * been created with a call to class_create(). */ diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c index 7036e8e96ab8..f35719aab3c1 100644 --- a/drivers/base/cpu.c +++ b/drivers/base/cpu.c @@ -10,6 +10,7 @@ #include <linux/topology.h> #include <linux/device.h> #include <linux/node.h> +#include <linux/gfp.h> #include "base.h" @@ -79,24 +80,24 @@ void unregister_cpu(struct cpu *cpu) } #ifdef CONFIG_ARCH_CPU_PROBE_RELEASE -static ssize_t cpu_probe_store(struct sys_device *dev, - struct sysdev_attribute *attr, - const char *buf, +static ssize_t cpu_probe_store(struct sysdev_class *class, + struct sysdev_class_attribute *attr, + const char *buf, size_t count) { return arch_cpu_probe(buf, count); } -static ssize_t cpu_release_store(struct sys_device *dev, - struct sysdev_attribute *attr, - const char *buf, +static ssize_t cpu_release_store(struct sysdev_class *class, + struct sysdev_class_attribute *attr, + const char *buf, size_t count) { return arch_cpu_release(buf, count); } -static SYSDEV_ATTR(probe, S_IWUSR, NULL, cpu_probe_store); -static SYSDEV_ATTR(release, S_IWUSR, NULL, cpu_release_store); +static SYSDEV_CLASS_ATTR(probe, S_IWUSR, NULL, cpu_probe_store); +static SYSDEV_CLASS_ATTR(release, S_IWUSR, NULL, cpu_release_store); #endif /* CONFIG_ARCH_CPU_PROBE_RELEASE */ #else /* ... !CONFIG_HOTPLUG_CPU */ diff --git a/drivers/base/devres.c b/drivers/base/devres.c index 05dd307e8f02..cf7a0c788052 100644 --- a/drivers/base/devres.c +++ b/drivers/base/devres.c @@ -9,6 +9,7 @@ #include <linux/device.h> #include <linux/module.h> +#include <linux/slab.h> #include "base.h" diff --git a/drivers/base/devtmpfs.c b/drivers/base/devtmpfs.c index dac478c6e460..057cf11326bf 100644 --- a/drivers/base/devtmpfs.c +++ b/drivers/base/devtmpfs.c @@ -23,6 +23,7 @@ #include <linux/cred.h> #include <linux/sched.h> #include <linux/init_task.h> +#include <linux/slab.h> static struct vfsmount *dev_mnt; diff --git a/drivers/base/dma-coherent.c b/drivers/base/dma-coherent.c index 962a3b574f21..d4d8ce53886a 100644 --- a/drivers/base/dma-coherent.c +++ b/drivers/base/dma-coherent.c @@ -2,6 +2,7 @@ * Coherent per-device memory handling. * Borrowed from i386 */ +#include <linux/slab.h> #include <linux/kernel.h> #include <linux/dma-mapping.h> diff --git a/drivers/base/dma-mapping.c b/drivers/base/dma-mapping.c index ca9186f70a69..763d59c1eb65 100644 --- a/drivers/base/dma-mapping.c +++ b/drivers/base/dma-mapping.c @@ -8,6 +8,7 @@ */ #include <linux/dma-mapping.h> +#include <linux/gfp.h> /* * Managed DMA API diff --git a/drivers/base/driver.c b/drivers/base/driver.c index 90c9fff09ead..b631f7c59453 100644 --- a/drivers/base/driver.c +++ b/drivers/base/driver.c @@ -13,6 +13,7 @@ #include <linux/device.h> #include <linux/module.h> #include <linux/errno.h> +#include <linux/slab.h> #include <linux/string.h> #include "base.h" diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c index d0dc26ad5387..985da11174e7 100644 --- a/drivers/base/firmware_class.c +++ b/drivers/base/firmware_class.c @@ -19,6 +19,7 @@ #include <linux/kthread.h> #include <linux/highmem.h> #include <linux/firmware.h> +#include <linux/slab.h> #define to_dev(obj) container_of(obj, struct device, kobj) @@ -78,6 +79,7 @@ firmware_timeout_show(struct class *class, /** * firmware_timeout_store - set number of seconds to wait for firmware * @class: device class pointer + * @attr: device attribute pointer * @buf: buffer to scan for timeout value * @count: number of bytes in @buf * @@ -442,6 +444,7 @@ static int fw_setup_device(struct firmware *fw, struct device **dev_p, fw_priv = dev_get_drvdata(f_dev); fw_priv->fw = fw; + sysfs_bin_attr_init(&fw_priv->attr_data); retval = sysfs_create_bin_file(&f_dev->kobj, &fw_priv->attr_data); if (retval) { dev_err(device, "%s: sysfs_create_bin_file failed\n", __func__); diff --git a/drivers/base/memory.c b/drivers/base/memory.c index 2f8691511190..933442f40321 100644 --- a/drivers/base/memory.c +++ b/drivers/base/memory.c @@ -22,6 +22,7 @@ #include <linux/mm.h> #include <linux/mutex.h> #include <linux/stat.h> +#include <linux/slab.h> #include <asm/atomic.h> #include <asm/uaccess.h> @@ -312,7 +313,7 @@ static ssize_t print_block_size(struct sysdev_class *class, struct sysdev_class_attribute *attr, char *buf) { - return sprintf(buf, "%#lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE); + return sprintf(buf, "%lx\n", (unsigned long)PAGES_PER_SECTION * PAGE_SIZE); } static SYSDEV_CLASS_ATTR(block_size_bytes, 0444, print_block_size, NULL); @@ -429,12 +430,16 @@ static inline int memory_fail_init(void) * differentiation between which *physical* devices each * section belongs to... */ +int __weak arch_get_memory_phys_device(unsigned long start_pfn) +{ + return 0; +} static int add_memory_block(int nid, struct mem_section *section, - unsigned long state, int phys_device, - enum mem_add_context context) + unsigned long state, enum mem_add_context context) { struct memory_block *mem = kzalloc(sizeof(*mem), GFP_KERNEL); + unsigned long start_pfn; int ret = 0; if (!mem) @@ -443,7 +448,8 @@ static int add_memory_block(int nid, struct mem_section *section, mem->phys_index = __section_nr(section); mem->state = state; mutex_init(&mem->state_mutex); - mem->phys_device = phys_device; + start_pfn = section_nr_to_pfn(mem->phys_index); + mem->phys_device = arch_get_memory_phys_device(start_pfn); ret = register_memory(mem, section); if (!ret) @@ -515,7 +521,7 @@ int remove_memory_block(unsigned long node_id, struct mem_section *section, */ int register_new_memory(int nid, struct mem_section *section) { - return add_memory_block(nid, section, MEM_OFFLINE, 0, HOTPLUG); + return add_memory_block(nid, section, MEM_OFFLINE, HOTPLUG); } int unregister_memory_section(struct mem_section *section) @@ -548,7 +554,7 @@ int __init memory_dev_init(void) if (!present_section_nr(i)) continue; err = add_memory_block(0, __nr_to_section(i), MEM_ONLINE, - 0, BOOT); + BOOT); if (!ret) ret = err; } diff --git a/drivers/base/module.c b/drivers/base/module.c index 103be9cacb05..f32f2f9b7be5 100644 --- a/drivers/base/module.c +++ b/drivers/base/module.c @@ -7,6 +7,7 @@ #include <linux/device.h> #include <linux/module.h> #include <linux/errno.h> +#include <linux/slab.h> #include <linux/string.h> #include "base.h" diff --git a/drivers/base/node.c b/drivers/base/node.c index ad43185ec15a..057979a19eea 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -15,6 +15,7 @@ #include <linux/cpu.h> #include <linux/device.h> #include <linux/swap.h> +#include <linux/slab.h> static struct sysdev_class_attribute *node_state_attrs[]; @@ -165,8 +166,11 @@ static ssize_t node_read_distance(struct sys_device * dev, int len = 0; int i; - /* buf currently PAGE_SIZE, need ~4 chars per node */ - BUILD_BUG_ON(MAX_NUMNODES*4 > PAGE_SIZE/2); + /* + * buf is currently PAGE_SIZE in length and each node needs 4 chars + * at the most (distance + space or newline). + */ + BUILD_BUG_ON(MAX_NUMNODES * 4 > PAGE_SIZE); for_each_online_node(i) len += sprintf(buf + len, "%s%d", i ? " " : "", node_distance(nid, i)); diff --git a/drivers/base/platform.c b/drivers/base/platform.c index ef51b0083840..81865ee2eff3 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -362,6 +362,8 @@ EXPORT_SYMBOL_GPL(platform_device_unregister); * enumeration tasks, they don't fully conform to the Linux driver model. * In particular, when such drivers are built as modules, they can't be * "hotplugged". + * + * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ struct platform_device *platform_device_register_simple(const char *name, int id, @@ -408,6 +410,8 @@ EXPORT_SYMBOL_GPL(platform_device_register_simple); * allocated for the device allows drivers using such devices to be * unloaded without waiting for the last reference to the device to be * dropped. + * + * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ struct platform_device *platform_device_register_data( struct device *parent, @@ -559,6 +563,8 @@ EXPORT_SYMBOL_GPL(platform_driver_probe); * * Use this in legacy-style modules that probe hardware directly and * register a single platform device and corresponding platform driver. + * + * Returns &struct platform_device pointer on success, or ERR_PTR() on error. */ struct platform_device * __init_or_module platform_create_bundle( struct platform_driver *driver, @@ -1052,9 +1058,11 @@ static __initdata LIST_HEAD(early_platform_driver_list); static __initdata LIST_HEAD(early_platform_device_list); /** - * early_platform_driver_register + * early_platform_driver_register - register early platform driver * @epdrv: early_platform driver structure * @buf: string passed from early_param() + * + * Helper function for early_platform_init() / early_platform_init_buffer() */ int __init early_platform_driver_register(struct early_platform_driver *epdrv, char *buf) @@ -1106,9 +1114,12 @@ int __init early_platform_driver_register(struct early_platform_driver *epdrv, } /** - * early_platform_add_devices - add a numbers of early platform devices + * early_platform_add_devices - adds a number of early platform devices * @devs: array of early platform devices to add * @num: number of early platform devices in array + * + * Used by early architecture code to register early platform devices and + * their platform data. */ void __init early_platform_add_devices(struct platform_device **devs, int num) { @@ -1128,8 +1139,12 @@ void __init early_platform_add_devices(struct platform_device **devs, int num) } /** - * early_platform_driver_register_all + * early_platform_driver_register_all - register early platform drivers * @class_str: string to identify early platform driver class + * + * Used by architecture code to register all early platform drivers + * for a certain class. If omitted then only early platform drivers + * with matching kernel command line class parameters will be registered. */ void __init early_platform_driver_register_all(char *class_str) { @@ -1151,7 +1166,7 @@ void __init early_platform_driver_register_all(char *class_str) } /** - * early_platform_match + * early_platform_match - find early platform device matching driver * @epdrv: early platform driver structure * @id: id to match against */ @@ -1169,7 +1184,7 @@ early_platform_match(struct early_platform_driver *epdrv, int id) } /** - * early_platform_left + * early_platform_left - check if early platform driver has matching devices * @epdrv: early platform driver structure * @id: return true if id or above exists */ @@ -1187,7 +1202,7 @@ static __init int early_platform_left(struct early_platform_driver *epdrv, } /** - * early_platform_driver_probe_id + * early_platform_driver_probe_id - probe drivers matching class_str and id * @class_str: string to identify early platform driver class * @id: id to match against * @nr_probe: number of platform devices to successfully probe before exiting @@ -1277,10 +1292,14 @@ static int __init early_platform_driver_probe_id(char *class_str, } /** - * early_platform_driver_probe + * early_platform_driver_probe - probe a class of registered drivers * @class_str: string to identify early platform driver class * @nr_probe: number of platform devices to successfully probe before exiting * @user_only: only probe user specified early platform devices + * + * Used by architecture code to probe registered early platform drivers + * within a certain class. For probe to happen a registered early platform + * device matching a registered early platform driver is needed. */ int __init early_platform_driver_probe(char *class_str, int nr_probe, diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index d477f4dc5e51..941fcb87e52a 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -439,8 +439,23 @@ static int device_resume_noirq(struct device *dev, pm_message_t state) if (dev->bus && dev->bus->pm) { pm_dev_dbg(dev, state, "EARLY "); error = pm_noirq_op(dev, dev->bus->pm, state); + if (error) + goto End; } + if (dev->type && dev->type->pm) { + pm_dev_dbg(dev, state, "EARLY type "); + error = pm_noirq_op(dev, dev->type->pm, state); + if (error) + goto End; + } + + if (dev->class && dev->class->pm) { + pm_dev_dbg(dev, state, "EARLY class "); + error = pm_noirq_op(dev, dev->class->pm, state); + } + +End: TRACE_RESUME(error); return error; } @@ -735,10 +750,26 @@ static int device_suspend_noirq(struct device *dev, pm_message_t state) { int error = 0; + if (dev->class && dev->class->pm) { + pm_dev_dbg(dev, state, "LATE class "); + error = pm_noirq_op(dev, dev->class->pm, state); + if (error) + goto End; + } + + if (dev->type && dev->type->pm) { + pm_dev_dbg(dev, state, "LATE type "); + error = pm_noirq_op(dev, dev->type->pm, state); + if (error) + goto End; + } + if (dev->bus && dev->bus->pm) { pm_dev_dbg(dev, state, "LATE "); error = pm_noirq_op(dev, dev->bus->pm, state); } + +End: return error; } diff --git a/drivers/base/sys.c b/drivers/base/sys.c index 8980feec5d14..9354dc10a363 100644 --- a/drivers/base/sys.c +++ b/drivers/base/sys.c @@ -17,7 +17,6 @@ #include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> -#include <linux/slab.h> #include <linux/string.h> #include <linux/pm.h> #include <linux/device.h> |