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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/dma
parent1d1fdd95df681f0c065d90ffaafa215a0e8825e2 (diff)
parent1eeeef153c02f5856ec109fa532eb5f31c39f85c (diff)
downloadlinux-542a086ac72fb193cbc1b996963a572269e57743.tar.bz2
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/dma')
-rw-r--r--drivers/dma/dmaengine.c26
1 files changed, 16 insertions, 10 deletions
diff --git a/drivers/dma/dmaengine.c b/drivers/dma/dmaengine.c
index 9e56745f87bf..99af4db5948b 100644
--- a/drivers/dma/dmaengine.c
+++ b/drivers/dma/dmaengine.c
@@ -87,7 +87,8 @@ static struct dma_chan *dev_to_dma_chan(struct device *dev)
return chan_dev->chan;
}
-static ssize_t show_memcpy_count(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t memcpy_count_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct dma_chan *chan;
unsigned long count = 0;
@@ -106,9 +107,10 @@ static ssize_t show_memcpy_count(struct device *dev, struct device_attribute *at
return err;
}
+static DEVICE_ATTR_RO(memcpy_count);
-static ssize_t show_bytes_transferred(struct device *dev, struct device_attribute *attr,
- char *buf)
+static ssize_t bytes_transferred_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
{
struct dma_chan *chan;
unsigned long count = 0;
@@ -127,8 +129,10 @@ static ssize_t show_bytes_transferred(struct device *dev, struct device_attribut
return err;
}
+static DEVICE_ATTR_RO(bytes_transferred);
-static ssize_t show_in_use(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t in_use_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
{
struct dma_chan *chan;
int err;
@@ -143,13 +147,15 @@ static ssize_t show_in_use(struct device *dev, struct device_attribute *attr, ch
return err;
}
+static DEVICE_ATTR_RO(in_use);
-static struct device_attribute dma_attrs[] = {
- __ATTR(memcpy_count, S_IRUGO, show_memcpy_count, NULL),
- __ATTR(bytes_transferred, S_IRUGO, show_bytes_transferred, NULL),
- __ATTR(in_use, S_IRUGO, show_in_use, NULL),
- __ATTR_NULL
+static struct attribute *dma_dev_attrs[] = {
+ &dev_attr_memcpy_count.attr,
+ &dev_attr_bytes_transferred.attr,
+ &dev_attr_in_use.attr,
+ NULL,
};
+ATTRIBUTE_GROUPS(dma_dev);
static void chan_dev_release(struct device *dev)
{
@@ -167,7 +173,7 @@ static void chan_dev_release(struct device *dev)
static struct class dma_devclass = {
.name = "dma",
- .dev_attrs = dma_attrs,
+ .dev_groups = dma_dev_groups,
.dev_release = chan_dev_release,
};