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Driver core patches for 3.12-rc1

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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.
 
 Signed-off-by: Greg Kroah-Hartman <[email protected]>
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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
  ...
This commit is contained in:
Linus Torvalds 2013-09-03 11:37:15 -07:00
commit 542a086ac7
99 changed files with 1958 additions and 1915 deletions
Download patch file Download diff file Expand all files Collapse all files

30
drivers/media/v4l2-core/v4l2-dev.c
View file

@ -38,24 +38,25 @@
* sysfs stuff
*/
static ssize_t show_index(struct device *cd,
struct device_attribute *attr, char *buf)
static ssize_t index_show(struct device *cd,
struct device_attribute *attr, char *buf)
{
struct video_device *vdev = to_video_device(cd);
return sprintf(buf, "%i\n", vdev->index);
}
static DEVICE_ATTR_RO(index);
static ssize_t show_debug(struct device *cd,
struct device_attribute *attr, char *buf)
static ssize_t debug_show(struct device *cd,
struct device_attribute *attr, char *buf)
{
struct video_device *vdev = to_video_device(cd);
return sprintf(buf, "%i\n", vdev->debug);
}
static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
const char *buf, size_t len)
static ssize_t debug_store(struct device *cd, struct device_attribute *attr,
const char *buf, size_t len)
{
struct video_device *vdev = to_video_device(cd);
int res = 0;
@ -68,21 +69,24 @@ static ssize_t set_debug(struct device *cd, struct device_attribute *attr,
vdev->debug = value;
return len;
}
static DEVICE_ATTR_RW(debug);
static ssize_t show_name(struct device *cd,
static ssize_t name_show(struct device *cd,
struct device_attribute *attr, char *buf)
{
struct video_device *vdev = to_video_device(cd);
return sprintf(buf, "%.*s\n", (int)sizeof(vdev->name), vdev->name);
}
static DEVICE_ATTR_RO(name);
static struct device_attribute video_device_attrs[] = {
__ATTR(name, S_IRUGO, show_name, NULL),
__ATTR(debug, 0644, show_debug, set_debug),
__ATTR(index, S_IRUGO, show_index, NULL),
__ATTR_NULL
static struct attribute *video_device_attrs[] = {
&dev_attr_name.attr,
&dev_attr_debug.attr,
&dev_attr_index.attr,
NULL,
};
ATTRIBUTE_GROUPS(video_device);
/*
* Active devices
@ -217,7 +221,7 @@ static void v4l2_device_release(struct device *cd)
static struct class video_class = {
.name = VIDEO_NAME,
.dev_attrs = video_device_attrs,
.dev_groups = video_device_groups,
};
struct video_device *video_devdata(struct file *file)