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-rw-r--r--drivers/base/base.h10
-rw-r--r--drivers/base/bus.c60
-rw-r--r--drivers/base/class.c4
-rw-r--r--drivers/base/core.c107
-rw-r--r--drivers/base/cpu.c6
-rw-r--r--drivers/base/dma-contiguous.c4
-rw-r--r--drivers/base/driver.c31
-rw-r--r--drivers/base/firmware_class.c24
-rw-r--r--drivers/base/memory.c258
-rw-r--r--drivers/base/platform.c14
-rw-r--r--drivers/base/power/sysfs.c2
-rw-r--r--drivers/base/regmap/regmap-debugfs.c2
-rw-r--r--drivers/base/topology.c20
13 files changed, 247 insertions, 295 deletions
diff --git a/drivers/base/base.h b/drivers/base/base.h
index b8bdfe61daa..2cbc6774f4c 100644
--- a/drivers/base/base.h
+++ b/drivers/base/base.h
@@ -119,6 +119,16 @@ static inline int driver_match_device(struct device_driver *drv,
return drv->bus->match ? drv->bus->match(dev, drv) : 1;
}
+extern int driver_add_groups(struct device_driver *drv,
+ const struct attribute_group **groups);
+extern void driver_remove_groups(struct device_driver *drv,
+ const struct attribute_group **groups);
+
+extern int device_add_groups(struct device *dev,
+ const struct attribute_group **groups);
+extern void device_remove_groups(struct device *dev,
+ const struct attribute_group **groups);
+
extern char *make_class_name(const char *name, struct kobject *kobj);
extern int devres_release_all(struct device *dev);
diff --git a/drivers/base/bus.c b/drivers/base/bus.c
index d414331b480..4c289ab9135 100644
--- a/drivers/base/bus.c
+++ b/drivers/base/bus.c
@@ -17,6 +17,7 @@
#include <linux/init.h>
#include <linux/string.h>
#include <linux/mutex.h>
+#include <linux/sysfs.h>
#include "base.h"
#include "power/power.h"
@@ -165,8 +166,8 @@ static const struct kset_uevent_ops bus_uevent_ops = {
static struct kset *bus_kset;
/* Manually detach a device from its associated driver. */
-static ssize_t driver_unbind(struct device_driver *drv,
- const char *buf, size_t count)
+static ssize_t unbind_store(struct device_driver *drv, const char *buf,
+ size_t count)
{
struct bus_type *bus = bus_get(drv->bus);
struct device *dev;
@@ -185,15 +186,15 @@ static ssize_t driver_unbind(struct device_driver *drv,
bus_put(bus);
return err;
}
-static DRIVER_ATTR(unbind, S_IWUSR, NULL, driver_unbind);
+static DRIVER_ATTR_WO(unbind);
/*
* Manually attach a device to a driver.
* Note: the driver must want to bind to the device,
* it is not possible to override the driver's id table.
*/
-static ssize_t driver_bind(struct device_driver *drv,
- const char *buf, size_t count)
+static ssize_t bind_store(struct device_driver *drv, const char *buf,
+ size_t count)
{
struct bus_type *bus = bus_get(drv->bus);
struct device *dev;
@@ -221,7 +222,7 @@ static ssize_t driver_bind(struct device_driver *drv,
bus_put(bus);
return err;
}
-static DRIVER_ATTR(bind, S_IWUSR, NULL, driver_bind);
+static DRIVER_ATTR_WO(bind);
static ssize_t show_drivers_autoprobe(struct bus_type *bus, char *buf)
{
@@ -460,7 +461,7 @@ static int device_add_attrs(struct bus_type *bus, struct device *dev)
if (!bus->dev_attrs)
return 0;
- for (i = 0; attr_name(bus->dev_attrs[i]); i++) {
+ for (i = 0; bus->dev_attrs[i].attr.name; i++) {
error = device_create_file(dev, &bus->dev_attrs[i]);
if (error) {
while (--i >= 0)
@@ -476,7 +477,7 @@ static void device_remove_attrs(struct bus_type *bus, struct device *dev)
int i;
if (bus->dev_attrs) {
- for (i = 0; attr_name(bus->dev_attrs[i]); i++)
+ for (i = 0; bus->dev_attrs[i].attr.name; i++)
device_remove_file(dev, &bus->dev_attrs[i]);
}
}
@@ -499,6 +500,9 @@ int bus_add_device(struct device *dev)
error = device_add_attrs(bus, dev);
if (error)
goto out_put;
+ error = device_add_groups(dev, bus->dev_groups);
+ if (error)
+ goto out_groups;
error = sysfs_create_link(&bus->p->devices_kset->kobj,
&dev->kobj, dev_name(dev));
if (error)
@@ -513,6 +517,8 @@ int bus_add_device(struct device *dev)
out_subsys:
sysfs_remove_link(&bus->p->devices_kset->kobj, dev_name(dev));
+out_groups:
+ device_remove_groups(dev, bus->dev_groups);
out_id:
device_remove_attrs(bus, dev);
out_put:
@@ -575,6 +581,7 @@ void bus_remove_device(struct device *dev)
sysfs_remove_link(&dev->bus->p->devices_kset->kobj,
dev_name(dev));
device_remove_attrs(dev->bus, dev);
+ device_remove_groups(dev, dev->bus->dev_groups);
if (klist_node_attached(&dev->p->knode_bus))
klist_del(&dev->p->knode_bus);
@@ -590,7 +597,7 @@ static int driver_add_attrs(struct bus_type *bus, struct device_driver *drv)
int i;
if (bus->drv_attrs) {
- for (i = 0; attr_name(bus->drv_attrs[i]); i++) {
+ for (i = 0; bus->drv_attrs[i].attr.name; i++) {
error = driver_create_file(drv, &bus->drv_attrs[i]);
if (error)
goto err;
@@ -610,7 +617,7 @@ static void driver_remove_attrs(struct bus_type *bus,
int i;
if (bus->drv_attrs) {
- for (i = 0; attr_name(bus->drv_attrs[i]); i++)
+ for (i = 0; bus->drv_attrs[i].attr.name; i++)
driver_remove_file(drv, &bus->drv_attrs[i]);
}
}
@@ -659,8 +666,8 @@ static void remove_probe_files(struct bus_type *bus)
bus_remove_file(bus, &bus_attr_drivers_probe);
}
-static ssize_t driver_uevent_store(struct device_driver *drv,
- const char *buf, size_t count)
+static ssize_t uevent_store(struct device_driver *drv, const char *buf,
+ size_t count)
{
enum kobject_action action;
@@ -668,7 +675,7 @@ static ssize_t driver_uevent_store(struct device_driver *drv,
kobject_uevent(&drv->p->kobj, action);
return count;
}
-static DRIVER_ATTR(uevent, S_IWUSR, NULL, driver_uevent_store);
+static DRIVER_ATTR_WO(uevent);
/**
* bus_add_driver - Add a driver to the bus.
@@ -719,6 +726,10 @@ int bus_add_driver(struct device_driver *drv)
printk(KERN_ERR "%s: driver_add_attrs(%s) failed\n",
__func__, drv->name);
}
+ error = driver_add_groups(drv, bus->drv_groups);
+ if (error)
+ printk(KERN_ERR "%s: driver_create_groups(%s) failed\n",
+ __func__, drv->name);
if (!drv->suppress_bind_attrs) {
error = add_bind_files(drv);
@@ -756,6 +767,7 @@ void bus_remove_driver(struct device_driver *drv)
if (!drv->suppress_bind_attrs)
remove_bind_files(drv);
driver_remove_attrs(drv->bus, drv);
+ driver_remove_groups(drv, drv->bus->drv_groups);
driver_remove_file(drv, &driver_attr_uevent);
klist_remove(&drv->p->knode_bus);
pr_debug("bus: '%s': remove driver %s\n", drv->bus->name, drv->name);
@@ -846,7 +858,7 @@ static int bus_add_attrs(struct bus_type *bus)
int i;
if (bus->bus_attrs) {
- for (i = 0; attr_name(bus->bus_attrs[i]); i++) {
+ for (i = 0; bus->bus_attrs[i].attr.name; i++) {
error = bus_create_file(bus, &bus->bus_attrs[i]);
if (error)
goto err;
@@ -865,11 +877,23 @@ static void bus_remove_attrs(struct bus_type *bus)
int i;
if (bus->bus_attrs) {
- for (i = 0; attr_name(bus->bus_attrs[i]); i++)
+ for (i = 0; bus->bus_attrs[i].attr.name; i++)
bus_remove_file(bus, &bus->bus_attrs[i]);
}
}
+static int bus_add_groups(struct bus_type *bus,
+ const struct attribute_group **groups)
+{
+ return sysfs_create_groups(&bus->p->subsys.kobj, groups);
+}
+
+static void bus_remove_groups(struct bus_type *bus,
+ const struct attribute_group **groups)
+{
+ sysfs_remove_groups(&bus->p->subsys.kobj, groups);
+}
+
static void klist_devices_get(struct klist_node *n)
{
struct device_private *dev_prv = to_device_private_bus(n);
@@ -962,10 +986,15 @@ int bus_register(struct bus_type *bus)
retval = bus_add_attrs(bus);
if (retval)
goto bus_attrs_fail;
+ retval = bus_add_groups(bus, bus->bus_groups);
+ if (retval)
+ goto bus_groups_fail;
pr_debug("bus: '%s': registered\n", bus->name);
return 0;
+bus_groups_fail:
+ bus_remove_attrs(bus);
bus_attrs_fail:
remove_probe_files(bus);
bus_probe_files_fail:
@@ -996,6 +1025,7 @@ void bus_unregister(struct bus_type *bus)
if (bus->dev_root)
device_unregister(bus->dev_root);
bus_remove_attrs(bus);
+ bus_remove_groups(bus, bus->bus_groups);
remove_probe_files(bus);
kset_unregister(bus->p->drivers_kset);
kset_unregister(bus->p->devices_kset);
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 3ce84547132..8b7818b8005 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -135,7 +135,7 @@ static int add_class_attrs(struct class *cls)
int error = 0;
if (cls->class_attrs) {
- for (i = 0; attr_name(cls->class_attrs[i]); i++) {
+ for (i = 0; cls->class_attrs[i].attr.name; i++) {
error = class_create_file(cls, &cls->class_attrs[i]);
if (error)
goto error;
@@ -154,7 +154,7 @@ static void remove_class_attrs(struct class *cls)
int i;
if (cls->class_attrs) {
- for (i = 0; attr_name(cls->class_attrs[i]); i++)
+ for (i = 0; cls->class_attrs[i].attr.name; i++)
class_remove_file(cls, &cls->class_attrs[i]);
}
}
diff --git a/drivers/base/core.c b/drivers/base/core.c
index 8856d74545d..c7b0925f627 100644
--- a/drivers/base/core.c
+++ b/drivers/base/core.c
@@ -26,6 +26,7 @@
#include <linux/async.h>
#include <linux/pm_runtime.h>
#include <linux/netdevice.h>
+#include <linux/sysfs.h>
#include "base.h"
#include "power/power.h"
@@ -36,9 +37,9 @@ long sysfs_deprecated = 1;
#else
long sysfs_deprecated = 0;
#endif
-static __init int sysfs_deprecated_setup(char *arg)
+static int __init sysfs_deprecated_setup(char *arg)
{
- return strict_strtol(arg, 10, &sysfs_deprecated);
+ return kstrtol(arg, 10, &sysfs_deprecated);
}
early_param("sysfs.deprecated", sysfs_deprecated_setup);
#endif
@@ -345,7 +346,7 @@ static const struct kset_uevent_ops device_uevent_ops = {
.uevent = dev_uevent,
};
-static ssize_t show_uevent(struct device *dev, struct device_attribute *attr,
+static ssize_t uevent_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
struct kobject *top_kobj;
@@ -388,7 +389,7 @@ out:
return count;
}
-static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
+static ssize_t uevent_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
enum kobject_action action;
@@ -399,11 +400,9 @@ static ssize_t store_uevent(struct device *dev, struct device_attribute *attr,
dev_err(dev, "uevent: unknown action-string\n");
return count;
}
+static DEVICE_ATTR_RW(uevent);
-static struct device_attribute uevent_attr =
- __ATTR(uevent, S_IRUGO | S_IWUSR, show_uevent, store_uevent);
-
-static ssize_t show_online(struct device *dev, struct device_attribute *attr,
+static ssize_t online_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
bool val;
@@ -414,7 +413,7 @@ static ssize_t show_online(struct device *dev, struct device_attribute *attr,
return sprintf(buf, "%u\n", val);
}
-static ssize_t store_online(struct device *dev, struct device_attribute *attr,
+static ssize_t online_store(struct device *dev, struct device_attribute *attr,
const char *buf, size_t count)
{
bool val;
@@ -429,9 +428,7 @@ static ssize_t store_online(struct device *dev, struct device_attribute *attr,
unlock_device_hotplug();
return ret < 0 ? ret : count;
}
-
-static struct device_attribute online_attr =
- __ATTR(online, S_IRUGO | S_IWUSR, show_online, store_online);
+static DEVICE_ATTR_RW(online);
static int device_add_attributes(struct device *dev,
struct device_attribute *attrs)
@@ -440,7 +437,7 @@ static int device_add_attributes(struct device *dev,
int i;
if (attrs) {
- for (i = 0; attr_name(attrs[i]); i++) {
+ for (i = 0; attrs[i].attr.name; i++) {
error = device_create_file(dev, &attrs[i]);
if (error)
break;
@@ -458,7 +455,7 @@ static void device_remove_attributes(struct device *dev,
int i;
if (attrs)
- for (i = 0; attr_name(attrs[i]); i++)
+ for (i = 0; attrs[i].attr.name; i++)
device_remove_file(dev, &attrs[i]);
}
@@ -469,7 +466,7 @@ static int device_add_bin_attributes(struct device *dev,
int i;
if (attrs) {
- for (i = 0; attr_name(attrs[i]); i++) {
+ for (i = 0; attrs[i].attr.name; i++) {
error = device_create_bin_file(dev, &attrs[i]);
if (error)
break;
@@ -487,38 +484,19 @@ static void device_remove_bin_attributes(struct device *dev,
int i;
if (attrs)
- for (i = 0; attr_name(attrs[i]); i++)
+ for (i = 0; attrs[i].attr.name; i++)
device_remove_bin_file(dev, &attrs[i]);
}
-static int device_add_groups(struct device *dev,
- const struct attribute_group **groups)
+int device_add_groups(struct device *dev, const struct attribute_group **groups)
{
- int error = 0;
- int i;
-
- if (groups) {
- for (i = 0; groups[i]; i++) {
- error = sysfs_create_group(&dev->kobj, groups[i]);
- if (error) {
- while (--i >= 0)
- sysfs_remove_group(&dev->kobj,
- groups[i]);
- break;
- }
- }
- }
- return error;
+ return sysfs_create_groups(&dev->kobj, groups);
}
-static void device_remove_groups(struct device *dev,
- const struct attribute_group **groups)
+void device_remove_groups(struct device *dev,
+ const struct attribute_group **groups)
{
- int i;
-
- if (groups)
- for (i = 0; groups[i]; i++)
- sysfs_remove_group(&dev->kobj, groups[i]);
+ sysfs_remove_groups(&dev->kobj, groups);
}
static int device_add_attrs(struct device *dev)
@@ -550,7 +528,7 @@ static int device_add_attrs(struct device *dev)
goto err_remove_type_groups;
if (device_supports_offline(dev) && !dev->offline_disabled) {
- error = device_create_file(dev, &online_attr);
+ error = device_create_file(dev, &dev_attr_online);
if (error)
goto err_remove_type_groups;
}
@@ -578,7 +556,7 @@ static void device_remove_attrs(struct device *dev)
struct class *class = dev->class;
const struct device_type *type = dev->type;
- device_remove_file(dev, &online_attr);
+ device_remove_file(dev, &dev_attr_online);
device_remove_groups(dev, dev->groups);
if (type)
@@ -591,15 +569,12 @@ static void device_remove_attrs(struct device *dev)
}
}
-
-static ssize_t show_dev(struct device *dev, struct device_attribute *attr,
+static ssize_t dev_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
return print_dev_t(buf, dev->devt);
}
-
-static struct device_attribute devt_attr =
- __ATTR(dev, S_IRUGO, show_dev, NULL);
+static DEVICE_ATTR_RO(dev);
/* /sys/devices/ */
struct kset *devices_kset;
@@ -626,6 +601,7 @@ int device_create_file(struct device *dev,
return error;
}
+EXPORT_SYMBOL_GPL(device_create_file);
/**
* device_remove_file - remove sysfs attribute file.
@@ -638,6 +614,7 @@ void device_remove_file(struct device *dev,
if (dev)
sysfs_remove_file(&dev->kobj, &attr->attr);
}
+EXPORT_SYMBOL_GPL(device_remove_file);
/**
* device_create_bin_file - create sysfs binary attribute file for device.
@@ -748,6 +725,7 @@ void device_initialize(struct device *dev)
device_pm_init(dev);
set_dev_node(dev, -1);
}
+EXPORT_SYMBOL_GPL(device_initialize);
struct kobject *virtual_device_parent(struct device *dev)
{
@@ -1100,12 +1078,12 @@ int device_add(struct device *dev)
if (platform_notify)
platform_notify(dev);
- error = device_create_file(dev, &uevent_attr);
+ error = device_create_file(dev, &dev_attr_uevent);
if (error)
goto attrError;
if (MAJOR(dev->devt)) {
- error = device_create_file(dev, &devt_attr);
+ error = device_create_file(dev, &dev_attr_dev);
if (error)
goto ueventattrError;
@@ -1172,9 +1150,9 @@ done:
device_remove_sys_dev_entry(dev);
devtattrError:
if (MAJOR(dev->devt))
- device_remove_file(dev, &devt_attr);
+ device_remove_file(dev, &dev_attr_dev);
ueventattrError:
- device_remove_file(dev, &uevent_attr);
+ device_remove_file(dev, &dev_attr_uevent);
attrError:
kobject_uevent(&dev->kobj, KOBJ_REMOVE);
kobject_del(&dev->kobj);
@@ -1187,6 +1165,7 @@ name_error:
dev->p = NULL;
goto done;
}
+EXPORT_SYMBOL_GPL(device_add);
/**
* device_register - register a device with the system.
@@ -1211,6 +1190,7 @@ int device_register(struct device *dev)
device_initialize(dev);
return device_add(dev);
}
+EXPORT_SYMBOL_GPL(device_register);
/**
* get_device - increment reference count for device.
@@ -1224,6 +1204,7 @@ struct device *get_device(struct device *dev)
{
return dev ? kobj_to_dev(kobject_get(&dev->kobj)) : NULL;
}
+EXPORT_SYMBOL_GPL(get_device);
/**
* put_device - decrement reference count.
@@ -1235,6 +1216,7 @@ void put_device(struct device *dev)
if (dev)
kobject_put(&dev->kobj);
}
+EXPORT_SYMBOL_GPL(put_device);
/**
* device_del - delete device from system.
@@ -1266,7 +1248,7 @@ void device_del(struct device *dev)
if (MAJOR(dev->devt)) {
devtmpfs_delete_node(dev);
device_remove_sys_dev_entry(dev);
- device_remove_file(dev, &devt_attr);
+ device_remove_file(dev, &dev_attr_dev);
}
if (dev->class) {
device_remove_class_symlinks(dev);
@@ -1281,7 +1263,7 @@ void device_del(struct device *dev)
klist_del(&dev->knode_class);
mutex_unlock(&dev->class->p->mutex);
}
- device_remove_file(dev, &uevent_attr);
+ device_remove_file(dev, &dev_attr_uevent);
device_remove_attrs(dev);
bus_remove_device(dev);
device_pm_remove(dev);
@@ -1297,6 +1279,7 @@ void device_del(struct device *dev)
kobject_del(&dev->kobj);
put_device(parent);
}
+EXPORT_SYMBOL_GPL(device_del);
/**
* device_unregister - unregister device from system.
@@ -1315,6 +1298,7 @@ void device_unregister(struct device *dev)
device_del(dev);
put_device(dev);
}
+EXPORT_SYMBOL_GPL(device_unregister);
static struct device *next_device(struct klist_iter *i)
{
@@ -1403,6 +1387,7 @@ int device_for_each_child(struct device *parent, void *data,
klist_iter_exit(&i);
return error;
}
+EXPORT_SYMBOL_GPL(device_for_each_child);
/**
* device_find_child - device iterator for locating a particular device.
@@ -1437,6 +1422,7 @@ struct device *device_find_child(struct device *parent, void *data,
klist_iter_exit(&i);
return child;
}
+EXPORT_SYMBOL_GPL(device_find_child);
int __init devices_init(void)
{
@@ -1464,21 +1450,6 @@ int __init devices_init(void)
return -ENOMEM;
}
-EXPORT_SYMBOL_GPL(device_for_each_child);
-EXPORT_SYMBOL_GPL(device_find_child);
-
-EXPORT_SYMBOL_GPL(device_initialize);
-EXPORT_SYMBOL_GPL(device_add);
-EXPORT_SYMBOL_GPL(device_register);
-
-EXPORT_SYMBOL_GPL(device_del);
-EXPORT_SYMBOL_GPL(device_unregister);
-EXPORT_SYMBOL_GPL(get_device);
-EXPORT_SYMBOL_GPL(put_device);
-
-EXPORT_SYMBOL_GPL(device_create_file);
-EXPORT_SYMBOL_GPL(device_remove_file);
-
static DEFINE_MUTEX(device_hotplug_lock);
void lock_device_hotplug(void)
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index 4c358bc44c7..6bfaaca6955 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -43,11 +43,14 @@ static int __ref cpu_subsys_online(struct device *dev)
struct cpu *cpu = container_of(dev, struct cpu, dev);
int cpuid = dev->id;
int from_nid, to_nid;
- int ret;
+ int ret = -ENODEV;
cpu_hotplug_driver_lock();
from_nid = cpu_to_node(cpuid);
+ if (from_nid == NUMA_NO_NODE)
+ goto out;
+
ret = cpu_up(cpuid);
/*
* When hot adding memory to memoryless node and enabling a cpu
@@ -57,6 +60,7 @@ static int __ref cpu_subsys_online(struct device *dev)
if (from_nid != to_nid)
change_cpu_under_node(cpu, from_nid, to_nid);
+ out:
cpu_hotplug_driver_unlock();
return ret;
}
diff --git a/drivers/base/dma-contiguous.c b/drivers/base/dma-contiguous.c
index 0ca54421ce9..6c9cdaa9200 100644
--- a/drivers/base/dma-contiguous.c
+++ b/drivers/base/dma-contiguous.c
@@ -134,7 +134,7 @@ void __init dma_contiguous_reserve(phys_addr_t limit)
static DEFINE_MUTEX(cma_mutex);
-static __init int cma_activate_area(unsigned long base_pfn, unsigned long count)
+static int __init cma_activate_area(unsigned long base_pfn, unsigned long count)
{
unsigned long pfn = base_pfn;
unsigned i = count >> pageblock_order;
@@ -156,7 +156,7 @@ static __init int cma_activate_area(unsigned long base_pfn, unsigned long count)
return 0;
}
-static __init struct cma *cma_create_area(unsigned long base_pfn,
+static struct cma * __init cma_create_area(unsigned long base_pfn,
unsigned long count)
{
int bitmap_size = BITS_TO_LONGS(count) * sizeof(long);
diff --git a/drivers/base/driver.c b/drivers/base/driver.c
index 974e301a1ef..9e29943e56c 100644
--- a/drivers/base/driver.c
+++ b/drivers/base/driver.c
@@ -15,6 +15,7 @@
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/string.h>
+#include <linux/sysfs.h>
#include "base.h"
static struct device *next_device(struct klist_iter *i)
@@ -123,34 +124,16 @@ void driver_remove_file(struct device_driver *drv,
}
EXPORT_SYMBOL_GPL(driver_remove_file);
-static int driver_add_groups(struct device_driver *drv,
- const struct attribute_group **groups)
+int driver_add_groups(struct device_driver *drv,
+ const struct attribute_group **groups)
{
- int error = 0;
- int i;
-
- if (groups) {
- for (i = 0; groups[i]; i++) {
- error = sysfs_create_group(&drv->p->kobj, groups[i]);
- if (error) {
- while (--i >= 0)
- sysfs_remove_group(&drv->p->kobj,
- groups[i]);
- break;
- }
- }
- }
- return error;
+ return sysfs_create_groups(&drv->p->kobj, groups);
}
-static void driver_remove_groups(struct device_driver *drv,
- const struct attribute_group **groups)
+void driver_remove_groups(struct device_driver *drv,
+ const struct attribute_group **groups)
{
- int i;
-
- if (groups)
- for (i = 0; groups[i]; i++)
- sysfs_remove_group(&drv->p->kobj, groups[i]);
+ sysfs_remove_groups(&drv->p->kobj, groups);
}
/**
diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index a439602ea91..10a4467c63f 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -486,9 +486,8 @@ static struct notifier_block fw_shutdown_nb = {
.notifier_call = fw_shutdown_notify,
};
-static ssize_t firmware_timeout_show(struct class *class,
- struct class_attribute *attr,
- char *buf)
+static ssize_t timeout_show(struct class *class, struct class_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%d\n", loading_timeout);
}
@@ -506,9 +505,8 @@ static ssize_t firmware_timeout_show(struct class *class,
*
* Note: zero means 'wait forever'.
**/
-static ssize_t firmware_timeout_store(struct class *class,
- struct class_attribute *attr,
- const char *buf, size_t count)
+static ssize_t timeout_store(struct class *class, struct class_attribute *attr,
+ const char *buf, size_t count)
{
loading_timeout = simple_strtol(buf, NULL, 10);
if (loading_timeout < 0)
@@ -518,8 +516,7 @@ static ssize_t firmware_timeout_store(struct class *class,
}
static struct class_attribute firmware_class_attrs[] = {
- __ATTR(timeout, S_IWUSR | S_IRUGO,
- firmware_timeout_show, firmware_timeout_store),
+ __ATTR_RW(timeout),
__ATTR_NULL
};
@@ -868,8 +865,15 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
goto err_del_dev;
}
+ mutex_lock(&fw_lock);
+ list_add(&buf->pending_list, &pending_fw_head);
+ mutex_unlock(&fw_lock);
+
retval = device_create_file(f_dev, &dev_attr_loading);
if (retval) {
+ mutex_lock(&fw_lock);
+ list_del_init(&buf->pending_list);
+ mutex_unlock(&fw_lock);
dev_err(f_dev, "%s: device_create_file failed\n", __func__);
goto err_del_bin_attr;
}
@@ -884,10 +888,6 @@ static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
kobject_uevent(&fw_priv->dev.kobj, KOBJ_ADD);
}
- mutex_lock(&fw_lock);
- list_add(&buf->pending_list, &pending_fw_head);
- mutex_unlock(&fw_lock);
-
wait_for_completion(&buf->completion);
cancel_delayed_work_sync(&fw_priv->timeout_work);
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index ec386ee9cb2..1c617623c8a 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -16,7 +16,6 @@
#include <linux/capability.h>
#include <linux/device.h>
#include <linux/memory.h>
-#include <linux/kobject.h>
#include <linux/memory_hotplug.h>
#include <linux/mm.h>
#include <linux/mutex.h>
@@ -30,6 +29,8 @@ static DEFINE_MUTEX(mem_sysfs_mutex);
#define MEMORY_CLASS_NAME "memory"
+#define to_memory_block(dev) container_of(dev, struct memory_block, dev)
+
static int sections_per_block;
static inline int base_memory_block_id(int section_nr)
@@ -77,7 +78,7 @@ EXPORT_SYMBOL(unregister_memory_isolate_notifier);
static void memory_block_release(struct device *dev)
{
- struct memory_block *mem = container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
kfree(mem);
}
@@ -110,8 +111,7 @@ static unsigned long get_memory_block_size(void)
static ssize_t show_mem_start_phys_index(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct memory_block *mem =
- container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
unsigned long phys_index;
phys_index = mem->start_section_nr / sections_per_block;
@@ -121,8 +121,7 @@ static ssize_t show_mem_start_phys_index(struct device *dev,
static ssize_t show_mem_end_phys_index(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct memory_block *mem =
- container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
unsigned long phys_index;
phys_index = mem->end_section_nr / sections_per_block;
@@ -137,8 +136,7 @@ static ssize_t show_mem_removable(struct device *dev,
{
unsigned long i, pfn;
int ret = 1;
- struct memory_block *mem =
- container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
for (i = 0; i < sections_per_block; i++) {
if (!present_section_nr(mem->start_section_nr + i))
@@ -156,8 +154,7 @@ static ssize_t show_mem_removable(struct device *dev,
static ssize_t show_mem_state(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct memory_block *mem =
- container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
ssize_t len = 0;
/*
@@ -263,9 +260,8 @@ memory_block_action(unsigned long phys_index, unsigned long action, int online_t
return ret;
}
-static int __memory_block_change_state(struct memory_block *mem,
- unsigned long to_state, unsigned long from_state_req,
- int online_type)
+static int memory_block_change_state(struct memory_block *mem,
+ unsigned long to_state, unsigned long from_state_req)
{
int ret = 0;
@@ -275,105 +271,89 @@ static int __memory_block_change_state(struct memory_block *mem,
if (to_state == MEM_OFFLINE)
mem->state = MEM_GOING_OFFLINE;
- ret = memory_block_action(mem->start_section_nr, to_state, online_type);
+ ret = memory_block_action(mem->start_section_nr, to_state,
+ mem->online_type);
+
mem->state = ret ? from_state_req : to_state;
+
return ret;
}
+/* The device lock serializes operations on memory_subsys_[online|offline] */
static int memory_subsys_online(struct device *dev)
{
- struct memory_block *mem = container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
int ret;
- mutex_lock(&mem->state_mutex);
-
- ret = mem->state == MEM_ONLINE ? 0 :
- __memory_block_change_state(mem, MEM_ONLINE, MEM_OFFLINE,
- ONLINE_KEEP);
+ if (mem->state == MEM_ONLINE)
+ return 0;
- mutex_unlock(&mem->state_mutex);
- return ret;
-}
-
-static int memory_subsys_offline(struct device *dev)
-{
- struct memory_block *mem = container_of(dev, struct memory_block, dev);
- int ret;
+ /*
+ * If we are called from store_mem_state(), online_type will be
+ * set >= 0 Otherwise we were called from the device online
+ * attribute and need to set the online_type.
+ */
+ if (mem->online_type < 0)
+ mem->online_type = ONLINE_KEEP;
- mutex_lock(&mem->state_mutex);
+ ret = memory_block_change_state(mem, MEM_ONLINE, MEM_OFFLINE);
- ret = mem->state == MEM_OFFLINE ? 0 :
- __memory_block_change_state(mem, MEM_OFFLINE, MEM_ONLINE, -1);
+ /* clear online_type */
+ mem->online_type = -1;
- mutex_unlock(&mem->state_mutex);
return ret;
}
-static int __memory_block_change_state_uevent(struct memory_block *mem,
- unsigned long to_state, unsigned long from_state_req,
- int online_type)
-{
- int ret = __memory_block_change_state(mem, to_state, from_state_req,
- online_type);
- if (!ret) {
- switch (mem->state) {
- case MEM_OFFLINE:
- kobject_uevent(&mem->dev.kobj, KOBJ_OFFLINE);
- break;
- case MEM_ONLINE:
- kobject_uevent(&mem->dev.kobj, KOBJ_ONLINE);
- break;
- default:
- break;
- }
- }
- return ret;
-}
-
-static int memory_block_change_state(struct memory_block *mem,
- unsigned long to_state, unsigned long from_state_req,
- int online_type)
+static int memory_subsys_offline(struct device *dev)
{
- int ret;
+ struct memory_block *mem = to_memory_block(dev);
- mutex_lock(&mem->state_mutex);
- ret = __memory_block_change_state_uevent(mem, to_state, from_state_req,
- online_type);
- mutex_unlock(&mem->state_mutex);
+ if (mem->state == MEM_OFFLINE)
+ return 0;
- return ret;
+ return memory_block_change_state(mem, MEM_OFFLINE, MEM_ONLINE);
}
+
static ssize_t
store_mem_state(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
- struct memory_block *mem;
- bool offline;
- int ret = -EINVAL;
-
- mem = container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
+ int ret, online_type;
lock_device_hotplug();
- if (!strncmp(buf, "online_kernel", min_t(int, count, 13))) {
- offline = false;
- ret = memory_block_change_state(mem, MEM_ONLINE,
- MEM_OFFLINE, ONLINE_KERNEL);
- } else if (!strncmp(buf, "online_movable", min_t(int, count, 14))) {
- offline = false;
- ret = memory_block_change_state(mem, MEM_ONLINE,
- MEM_OFFLINE, ONLINE_MOVABLE);
- } else if (!strncmp(buf, "online", min_t(int, count, 6))) {
- offline = false;
- ret = memory_block_change_state(mem, MEM_ONLINE,
- MEM_OFFLINE, ONLINE_KEEP);
- } else if(!strncmp(buf, "offline", min_t(int, count, 7))) {
- offline = true;
- ret = memory_block_change_state(mem, MEM_OFFLINE,
- MEM_ONLINE, -1);
+ if (!strncmp(buf, "online_kernel", min_t(int, count, 13)))
+ online_type = ONLINE_KERNEL;
+ else if (!strncmp(buf, "online_movable", min_t(int, count, 14)))
+ online_type = ONLINE_MOVABLE;
+ else if (!strncmp(buf, "online", min_t(int, count, 6)))
+ online_type = ONLINE_KEEP;
+ else if (!strncmp(buf, "offline", min_t(int, count, 7)))
+ online_type = -1;
+ else
+ return -EINVAL;
+
+ switch (online_type) {
+ case ONLINE_KERNEL:
+ case ONLINE_MOVABLE:
+ case ONLINE_KEEP:
+ /*
+ * mem->online_type is not protected so there can be a
+ * race here. However, when racing online, the first
+ * will succeed and the second will just return as the
+ * block will already be online. The online type
+ * could be either one, but that is expected.
+ */
+ mem->online_type = online_type;
+ ret = device_online(&mem->dev);
+ break;
+ case -1:
+ ret = device_offline(&mem->dev);
+ break;
+ default:
+ ret = -EINVAL; /* should never happen */
}
- if (!ret)
- dev->offline = offline;
unlock_device_hotplug();
@@ -394,8 +374,7 @@ store_mem_state(struct device *dev,
static ssize_t show_phys_device(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct memory_block *mem =
- container_of(dev, struct memory_block, dev);
+ struct memory_block *mem = to_memory_block(dev);
return sprintf(buf, "%d\n", mem->phys_device);
}
@@ -471,7 +450,7 @@ store_soft_offline_page(struct device *dev,
u64 pfn;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (strict_strtoull(buf, 0, &pfn) < 0)
+ if (kstrtoull(buf, 0, &pfn) < 0)
return -EINVAL;
pfn >>= PAGE_SHIFT;
if (!pfn_valid(pfn))
@@ -490,7 +469,7 @@ store_hard_offline_page(struct device *dev,
u64 pfn;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (strict_strtoull(buf, 0, &pfn) < 0)
+ if (kstrtoull(buf, 0, &pfn) < 0)
return -EINVAL;
pfn >>= PAGE_SHIFT;
ret = memory_failure(pfn, 0, 0);
@@ -527,7 +506,7 @@ struct memory_block *find_memory_block_hinted(struct mem_section *section,
put_device(&hint->dev);
if (!dev)
return NULL;
- return container_of(dev, struct memory_block, dev);
+ return to_memory_block(dev);
}
/*
@@ -567,16 +546,13 @@ static const struct attribute_group *memory_memblk_attr_groups[] = {
static
int register_memory(struct memory_block *memory)
{
- int error;
-
memory->dev.bus = &memory_subsys;
memory->dev.id = memory->start_section_nr / sections_per_block;
memory->dev.release = memory_block_release;
memory->dev.groups = memory_memblk_attr_groups;
memory->dev.offline = memory->state == MEM_OFFLINE;
- error = device_register(&memory->dev);
- return error;
+ return device_register(&memory->dev);
}
static int init_memory_block(struct memory_block **memory,
@@ -597,7 +573,6 @@ static int init_memory_block(struct memory_block **memory,
mem->end_section_nr = mem->start_section_nr + sections_per_block - 1;
mem->state = state;
mem->section_count++;
- mutex_init(&mem->state_mutex);
start_pfn = section_nr_to_pfn(mem->start_section_nr);
mem->phys_device = arch_get_memory_phys_device(start_pfn);
@@ -607,55 +582,57 @@ static int init_memory_block(struct memory_block **memory,
return ret;
}
-static int add_memory_section(int nid, struct mem_section *section,
- struct memory_block **mem_p,
- unsigned long state, enum mem_add_context context)
+static int add_memory_block(int base_section_nr)
{
- struct memory_block *mem = NULL;
- int scn_nr = __section_nr(section);
- int ret = 0;
-
- mutex_lock(&mem_sysfs_mutex);
-
- if (context == BOOT) {
- /* same memory block ? */
- if (mem_p && *mem_p)
- if (scn_nr >= (*mem_p)->start_section_nr &&
- scn_nr <= (*mem_p)->end_section_nr) {
- mem = *mem_p;
- kobject_get(&mem->dev.kobj);
- }
- } else
- mem = find_memory_block(section);
-
- if (mem) {
- mem->section_count++;
- kobject_put(&mem->dev.kobj);
- } else {
- ret = init_memory_block(&mem, section, state);
- /* store memory_block pointer for next loop */
- if (!ret && context == BOOT)
- if (mem_p)
- *mem_p = mem;
- }
+ struct memory_block *mem;
+ int i, ret, section_count = 0, section_nr;
- if (!ret) {
- if (context == HOTPLUG &&
- mem->section_count == sections_per_block)
- ret = register_mem_sect_under_node(mem, nid);
+ for (i = base_section_nr;
+ (i < base_section_nr + sections_per_block) && i < NR_MEM_SECTIONS;
+ i++) {
+ if (!present_section_nr(i))
+ continue;
+ if (section_count == 0)
+ section_nr = i;
+ section_count++;
}
- mutex_unlock(&mem_sysfs_mutex);
- return ret;
+ if (section_count == 0)
+ return 0;
+ ret = init_memory_block(&mem, __nr_to_section(section_nr), MEM_ONLINE);
+ if (ret)
+ return ret;
+ mem->section_count = section_count;
+ return 0;
}
+
/*
* need an interface for the VM to add new memory regions,
* but without onlining it.
*/
int register_new_memory(int nid, struct mem_section *section)
{
- return add_memory_section(nid, section, NULL, MEM_OFFLINE, HOTPLUG);
+ int ret = 0;
+ struct memory_block *mem;
+
+ mutex_lock(&mem_sysfs_mutex);
+
+ mem = find_memory_block(section);
+ if (mem) {
+ mem->section_count++;
+ put_device(&mem->dev);
+ } else {
+ ret = init_memory_block(&mem, section, MEM_OFFLINE);
+ if (ret)
+ goto out;
+ }
+
+ if (mem->section_count == sections_per_block)
+ ret = register_mem_sect_under_node(mem, nid);
+out:
+ mutex_unlock(&mem_sysfs_mutex);
+ return ret;
}
#ifdef CONFIG_MEMORY_HOTREMOVE
@@ -665,7 +642,7 @@ unregister_memory(struct memory_block *memory)
BUG_ON(memory->dev.bus != &memory_subsys);
/* drop the ref. we got in remove_memory_block() */
- kobject_put(&memory->dev.kobj);
+ put_device(&memory->dev);
device_unregister(&memory->dev);
}
@@ -682,7 +659,7 @@ static int remove_memory_block(unsigned long node_id,
if (mem->section_count == 0)
unregister_memory(mem);
else
- kobject_put(&mem->dev.kobj);
+ put_device(&mem->dev);
mutex_unlock(&mem_sysfs_mutex);
return 0;
@@ -735,7 +712,6 @@ int __init memory_dev_init(void)
int ret;
int err;
unsigned long block_sz;
- struct memory_block *mem = NULL;
ret = subsys_system_register(&memory_subsys, memory_root_attr_groups);
if (ret)
@@ -748,17 +724,13 @@ int __init memory_dev_init(void)
* Create entries for memory sections that were found
* during boot and have been initialized
*/
- for (i = 0; i < NR_MEM_SECTIONS; i++) {
- if (!present_section_nr(i))
- continue;
- /* don't need to reuse memory_block if only one per block */
- err = add_memory_section(0, __nr_to_section(i),
- (sections_per_block == 1) ? NULL : &mem,
- MEM_ONLINE,
- BOOT);
+ mutex_lock(&mem_sysfs_mutex);
+ for (i = 0; i < NR_MEM_SECTIONS; i += sections_per_block) {
+ err = add_memory_block(i);
if (!ret)
ret = err;
}
+ mutex_unlock(&mem_sysfs_mutex);
out:
if (ret)
diff --git a/drivers/base/platform.c b/drivers/base/platform.c
index 3c3197a8de4..4f8bef3eb5a 100644
--- a/drivers/base/platform.c
+++ b/drivers/base/platform.c
@@ -672,11 +672,13 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a,
return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len;
}
+static DEVICE_ATTR_RO(modalias);
-static struct device_attribute platform_dev_attrs[] = {
- __ATTR_RO(modalias),
- __ATTR_NULL,
+static struct attribute *platform_dev_attrs[] = {
+ &dev_attr_modalias.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(platform_dev);
static int platform_uevent(struct device *dev, struct kobj_uevent_env *env)
{
@@ -893,7 +895,7 @@ static const struct dev_pm_ops platform_dev_pm_ops = {
struct bus_type platform_bus_type = {
.name = "platform",
- .dev_attrs = platform_dev_attrs,
+ .dev_groups = platform_dev_groups,
.match = platform_match,
.uevent = platform_uevent,
.pm = &platform_dev_pm_ops,
@@ -1054,7 +1056,7 @@ void __init early_platform_driver_register_all(char *class_str)
* @epdrv: early platform driver structure
* @id: id to match against
*/
-static __init struct platform_device *
+static struct platform_device * __init
early_platform_match(struct early_platform_driver *epdrv, int id)
{
struct platform_device *pd;
@@ -1072,7 +1074,7 @@ early_platform_match(struct early_platform_driver *epdrv, int id)
* @epdrv: early platform driver structure
* @id: return true if id or above exists
*/
-static __init int early_platform_left(struct early_platform_driver *epdrv,
+static int __init early_platform_left(struct early_platform_driver *epdrv,
int id)
{
struct platform_device *pd;
diff --git a/drivers/base/power/sysfs.c b/drivers/base/power/sysfs.c
index a53ebd26570..03e089ade5c 100644
--- a/drivers/base/power/sysfs.c
+++ b/drivers/base/power/sysfs.c
@@ -206,7 +206,7 @@ static ssize_t autosuspend_delay_ms_store(struct device *dev,
if (!dev->power.use_autosuspend)
return -EIO;
- if (strict_strtol(buf, 10, &delay) != 0 || delay != (int) delay)
+ if (kstrtol(buf, 10, &delay) != 0 || delay != (int) delay)
return -EINVAL;
device_lock(dev);
diff --git a/drivers/base/regmap/regmap-debugfs.c b/drivers/base/regmap/regmap-debugfs.c
index 6c2652a8ad5..de11ecaf383 100644
--- a/drivers/base/regmap/regmap-debugfs.c
+++ b/drivers/base/regmap/regmap-debugfs.c
@@ -281,7 +281,7 @@ static ssize_t regmap_map_write_file(struct file *file,
reg = simple_strtoul(start, &start, 16);
while (*start == ' ')
start++;
- if (strict_strtoul(start, 16, &value))
+ if (kstrtoul(start, 16, &value))
return -EINVAL;
/* Userspace has been fiddling around behind the kernel's back */
diff --git a/drivers/base/topology.c b/drivers/base/topology.c
index 2f5919ed91a..94ffee378f1 100644
--- a/drivers/base/topology.c
+++ b/drivers/base/topology.c
@@ -62,25 +62,6 @@ static ssize_t show_cpumap(int type, const struct cpumask *mask, char *buf)
}
#endif
-#ifdef arch_provides_topology_pointers
-#define define_siblings_show_map(name) \
-static ssize_t show_##name(struct device *dev, \
- struct device_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 device *dev, \
- struct device_attribute *attr, \
- char *buf) \
-{ \
- unsigned int cpu = dev->id; \
- return show_cpumap(1, topology_##name(cpu), buf); \
-}
-
-#else
#define define_siblings_show_map(name) \
static ssize_t show_##name(struct device *dev, \
struct device_attribute *attr, char *buf) \
@@ -95,7 +76,6 @@ static ssize_t show_##name##_list(struct device *dev, \
{ \
return show_cpumap(1, topology_##name(dev->id), buf); \
}
-#endif
#define define_siblings_show_func(name) \
define_siblings_show_map(name); define_siblings_show_list(name)
generated by cgit v1.2.3-18-g5258 (git 2.32.0) at 2024-12-17 19:22:56 +0000