summaryrefslogtreecommitdiff
path: root/drivers/misc
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 11:37:15 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2013-09-03 11:37:15 -0700
commit542a086ac72fb193cbc1b996963a572269e57743 (patch)
treeb137c08037cca4ffc8a156a891a01113b3b8edce /drivers/misc
parent1d1fdd95df681f0c065d90ffaafa215a0e8825e2 (diff)
parent1eeeef153c02f5856ec109fa532eb5f31c39f85c (diff)
Merge tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core patches from Greg KH: "Here's the big driver core pull request for 3.12-rc1. Lots of tiny changes here fixing up the way sysfs attributes are created, to try to make drivers simpler, and fix a whole class race conditions with creations of device attributes after the device was announced to userspace. All the various pieces are acked by the different subsystem maintainers" * tag 'driver-core-3.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (119 commits) firmware loader: fix pending_fw_head list corruption drivers/base/memory.c: introduce help macro to_memory_block dynamic debug: line queries failing due to uninitialized local variable sysfs: sysfs_create_groups returns a value. debugfs: provide debugfs_create_x64() when disabled rbd: convert bus code to use bus_groups firmware: dcdbas: use binary attribute groups sysfs: add sysfs_create/remove_groups for when SYSFS is not enabled driver core: add #include <linux/sysfs.h> to core files. HID: convert bus code to use dev_groups Input: serio: convert bus code to use drv_groups Input: gameport: convert bus code to use drv_groups driver core: firmware: use __ATTR_RW() driver core: core: use DEVICE_ATTR_RO driver core: bus: use DRIVER_ATTR_WO() driver core: create write-only attribute macros for devices and drivers sysfs: create __ATTR_WO() driver-core: platform: convert bus code to use dev_groups workqueue: convert bus code to use dev_groups MEI: convert bus code to use dev_groups ...
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/c2port/core.c83
-rw-r--r--drivers/misc/enclosure.c29
-rw-r--r--drivers/misc/mei/bus.c10
3 files changed, 62 insertions, 60 deletions
diff --git a/drivers/misc/c2port/core.c b/drivers/misc/c2port/core.c
index f32550a74bdd..464419b36440 100644
--- a/drivers/misc/c2port/core.c
+++ b/drivers/misc/c2port/core.c
@@ -311,6 +311,7 @@ static ssize_t c2port_show_name(struct device *dev,
return sprintf(buf, "%s\n", c2dev->name);
}
+static DEVICE_ATTR(name, 0444, c2port_show_name, NULL);
static ssize_t c2port_show_flash_blocks_num(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -320,6 +321,7 @@ static ssize_t c2port_show_flash_blocks_num(struct device *dev,
return sprintf(buf, "%d\n", ops->blocks_num);
}
+static DEVICE_ATTR(flash_blocks_num, 0444, c2port_show_flash_blocks_num, NULL);
static ssize_t c2port_show_flash_block_size(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -329,6 +331,7 @@ static ssize_t c2port_show_flash_block_size(struct device *dev,
return sprintf(buf, "%d\n", ops->block_size);
}
+static DEVICE_ATTR(flash_block_size, 0444, c2port_show_flash_block_size, NULL);
static ssize_t c2port_show_flash_size(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -338,18 +341,18 @@ static ssize_t c2port_show_flash_size(struct device *dev,
return sprintf(buf, "%d\n", ops->blocks_num * ops->block_size);
}
+static DEVICE_ATTR(flash_size, 0444, c2port_show_flash_size, NULL);
-static ssize_t c2port_show_access(struct device *dev,
- struct device_attribute *attr, char *buf)
+static ssize_t access_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct c2port_device *c2dev = dev_get_drvdata(dev);
return sprintf(buf, "%d\n", c2dev->access);
}
-static ssize_t c2port_store_access(struct device *dev,
- struct device_attribute *attr,
- const char *buf, size_t count)
+static ssize_t access_store(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
{
struct c2port_device *c2dev = dev_get_drvdata(dev);
struct c2port_ops *ops = c2dev->ops;
@@ -375,6 +378,7 @@ static ssize_t c2port_store_access(struct device *dev,
return count;
}
+static DEVICE_ATTR_RW(access);
static ssize_t c2port_store_reset(struct device *dev,
struct device_attribute *attr,
@@ -395,6 +399,7 @@ static ssize_t c2port_store_reset(struct device *dev,
return count;
}
+static DEVICE_ATTR(reset, 0200, NULL, c2port_store_reset);
static ssize_t __c2port_show_dev_id(struct c2port_device *dev, char *buf)
{
@@ -431,6 +436,7 @@ static ssize_t c2port_show_dev_id(struct device *dev,
return ret;
}
+static DEVICE_ATTR(dev_id, 0444, c2port_show_dev_id, NULL);
static ssize_t __c2port_show_rev_id(struct c2port_device *dev, char *buf)
{
@@ -467,6 +473,7 @@ static ssize_t c2port_show_rev_id(struct device *dev,
return ret;
}
+static DEVICE_ATTR(rev_id, 0444, c2port_show_rev_id, NULL);
static ssize_t c2port_show_flash_access(struct device *dev,
struct device_attribute *attr, char *buf)
@@ -536,6 +543,8 @@ static ssize_t c2port_store_flash_access(struct device *dev,
return count;
}
+static DEVICE_ATTR(flash_access, 0644, c2port_show_flash_access,
+ c2port_store_flash_access);
static ssize_t __c2port_write_flash_erase(struct c2port_device *dev)
{
@@ -616,6 +625,7 @@ static ssize_t c2port_store_flash_erase(struct device *dev,
return count;
}
+static DEVICE_ATTR(flash_erase, 0200, NULL, c2port_store_flash_erase);
static ssize_t __c2port_read_flash_data(struct c2port_device *dev,
char *buffer, loff_t offset, size_t count)
@@ -846,35 +856,40 @@ static ssize_t c2port_write_flash_data(struct file *filp, struct kobject *kobj,
return ret;
}
+/* size is computed at run-time */
+static BIN_ATTR(flash_data, 0644, c2port_read_flash_data,
+ c2port_write_flash_data, 0);
/*
* Class attributes
*/
+static struct attribute *c2port_attrs[] = {
+ &dev_attr_name.attr,
+ &dev_attr_flash_blocks_num.attr,
+ &dev_attr_flash_block_size.attr,
+ &dev_attr_flash_size.attr,
+ &dev_attr_access.attr,
+ &dev_attr_reset.attr,
+ &dev_attr_dev_id.attr,
+ &dev_attr_rev_id.attr,
+ &dev_attr_flash_access.attr,
+ &dev_attr_flash_erase.attr,
+ NULL,
+};
-static struct device_attribute c2port_attrs[] = {
- __ATTR(name, 0444, c2port_show_name, NULL),
- __ATTR(flash_blocks_num, 0444, c2port_show_flash_blocks_num, NULL),
- __ATTR(flash_block_size, 0444, c2port_show_flash_block_size, NULL),
- __ATTR(flash_size, 0444, c2port_show_flash_size, NULL),
- __ATTR(access, 0644, c2port_show_access, c2port_store_access),
- __ATTR(reset, 0200, NULL, c2port_store_reset),
- __ATTR(dev_id, 0444, c2port_show_dev_id, NULL),
- __ATTR(rev_id, 0444, c2port_show_rev_id, NULL),
-
- __ATTR(flash_access, 0644, c2port_show_flash_access,
- c2port_store_flash_access),
- __ATTR(flash_erase, 0200, NULL, c2port_store_flash_erase),
- __ATTR_NULL,
+static struct bin_attribute *c2port_bin_attrs[] = {
+ &bin_attr_flash_data,
+ NULL,
};
-static struct bin_attribute c2port_bin_attrs = {
- .attr = {
- .name = "flash_data",
- .mode = 0644
- },
- .read = c2port_read_flash_data,
- .write = c2port_write_flash_data,
- /* .size is computed at run-time */
+static const struct attribute_group c2port_group = {
+ .attrs = c2port_attrs,
+ .bin_attrs = c2port_bin_attrs,
+};
+
+static const struct attribute_group *c2port_groups[] = {
+ &c2port_group,
+ NULL,
};
/*
@@ -907,6 +922,8 @@ struct c2port_device *c2port_device_register(char *name,
goto error_idr_alloc;
c2dev->id = ret;
+ bin_attr_flash_data.size = ops->blocks_num * ops->block_size;
+
c2dev->dev = device_create(c2port_class, NULL, 0, c2dev,
"c2port%d", c2dev->id);
if (unlikely(IS_ERR(c2dev->dev))) {
@@ -919,12 +936,6 @@ struct c2port_device *c2port_device_register(char *name,
c2dev->ops = ops;
mutex_init(&c2dev->mutex);
- /* Create binary file */
- c2port_bin_attrs.size = ops->blocks_num * ops->block_size;
- ret = device_create_bin_file(c2dev->dev, &c2port_bin_attrs);
- if (unlikely(ret))
- goto error_device_create_bin_file;
-
/* By default C2 port access is off */
c2dev->access = c2dev->flash_access = 0;
ops->access(c2dev, 0);
@@ -937,9 +948,6 @@ struct c2port_device *c2port_device_register(char *name,
return c2dev;
-error_device_create_bin_file:
- device_destroy(c2port_class, 0);
-
error_device_create:
spin_lock_irq(&c2port_idr_lock);
idr_remove(&c2port_idr, c2dev->id);
@@ -959,7 +967,6 @@ void c2port_device_unregister(struct c2port_device *c2dev)
dev_info(c2dev->dev, "C2 port %s removed\n", c2dev->name);
- device_remove_bin_file(c2dev->dev, &c2port_bin_attrs);
spin_lock_irq(&c2port_idr_lock);
idr_remove(&c2port_idr, c2dev->id);
spin_unlock_irq(&c2port_idr_lock);
@@ -984,7 +991,7 @@ static int __init c2port_init(void)
printk(KERN_ERR "c2port: failed to allocate class\n");
return PTR_ERR(c2port_class);
}
- c2port_class->dev_attrs = c2port_attrs;
+ c2port_class->dev_groups = c2port_groups;
return 0;
}
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 00e5fcac8fdf..0e8df41aaf14 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -239,7 +239,7 @@ static void enclosure_component_release(struct device *dev)
put_device(dev->parent);
}
-static const struct attribute_group *enclosure_groups[];
+static const struct attribute_group *enclosure_component_groups[];
/**
* enclosure_component_register - add a particular component to an enclosure
@@ -282,7 +282,7 @@ enclosure_component_register(struct enclosure_device *edev,
dev_set_name(cdev, "%u", number);
cdev->release = enclosure_component_release;
- cdev->groups = enclosure_groups;
+ cdev->groups = enclosure_component_groups;
err = device_register(cdev);
if (err) {
@@ -365,25 +365,26 @@ EXPORT_SYMBOL_GPL(enclosure_remove_device);
* sysfs pieces below
*/
-static ssize_t enclosure_show_components(struct device *cdev,
- struct device_attribute *attr,
- char *buf)
+static ssize_t components_show(struct device *cdev,
+ struct device_attribute *attr, char *buf)
{
struct enclosure_device *edev = to_enclosure_device(cdev);
return snprintf(buf, 40, "%d\n", edev->components);
}
+static DEVICE_ATTR_RO(components);
-static struct device_attribute enclosure_attrs[] = {
- __ATTR(components, S_IRUGO, enclosure_show_components, NULL),
- __ATTR_NULL
+static struct attribute *enclosure_class_attrs[] = {
+ &dev_attr_components.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(enclosure_class);
static struct class enclosure_class = {
.name = "enclosure",
.owner = THIS_MODULE,
.dev_release = enclosure_release,
- .dev_attrs = enclosure_attrs,
+ .dev_groups = enclosure_class_groups,
};
static const char *const enclosure_status [] = {
@@ -536,15 +537,7 @@ static struct attribute *enclosure_component_attrs[] = {
&dev_attr_type.attr,
NULL
};
-
-static struct attribute_group enclosure_group = {
- .attrs = enclosure_component_attrs,
-};
-
-static const struct attribute_group *enclosure_groups[] = {
- &enclosure_group,
- NULL
-};
+ATTRIBUTE_GROUPS(enclosure_component);
static int __init enclosure_init(void)
{
diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c
index a150a42ed4af..6d0282c08a06 100644
--- a/drivers/misc/mei/bus.c
+++ b/drivers/misc/mei/bus.c
@@ -108,11 +108,13 @@ 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 mei_cl_dev_attrs[] = {
- __ATTR_RO(modalias),
- __ATTR_NULL,
+static struct attribute *mei_cl_dev_attrs[] = {
+ &dev_attr_modalias.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(mei_cl_dev);
static int mei_cl_uevent(struct device *dev, struct kobj_uevent_env *env)
{
@@ -124,7 +126,7 @@ static int mei_cl_uevent(struct device *dev, struct kobj_uevent_env *env)
static struct bus_type mei_cl_bus_type = {
.name = "mei",
- .dev_attrs = mei_cl_dev_attrs,
+ .dev_groups = mei_cl_dev_groups,
.match = mei_cl_device_match,
.probe = mei_cl_device_probe,
.remove = mei_cl_device_remove,