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Subject[PATCH] w1: Added inline functions on top of container_of().
Date
From
[PATCH] w1: Added inline functions on top of container_of().

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

---
commit db2d0008de519c5db6baec45f7831e08790301cf
tree f100b05ab42f54740b967a24ba07d79518337f8e
parent 5e8eb8501212eb92826ccf191f9ca8c186f531c3
author Evgeniy Polyakov <johnpol@2ka.mipt.ru> Thu, 11 Aug 2005 17:27:49 +0400
committer Greg Kroah-Hartman <gregkh@suse.de> Thu, 08 Sep 2005 14:41:26 -0700
drivers/w1/w1.c | 22 ++++++++++------------
drivers/w1/w1.h | 15 +++++++++++++++
drivers/w1/w1_smem.c | 6 ++----
drivers/w1/w1_therm.c | 6 ++----
4 files changed, 29 insertions(+), 20 deletions(-)
diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -89,15 +89,13 @@ static int w1_master_remove(struct devic

static void w1_master_release(struct device *dev)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
-
+ struct w1_master *md = dev_to_w1_master(dev);
complete(&md->dev_released);
}

static void w1_slave_release(struct device *dev)
{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
+ struct w1_slave *sl = dev_to_w1_slave(dev);
complete(&sl->dev_released);
}

@@ -162,7 +160,7 @@ struct device w1_slave_device = {

static ssize_t w1_master_attribute_show_name(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;

if (down_interruptible (&md->mutex))
@@ -179,7 +177,7 @@ static ssize_t w1_master_attribute_store
struct device_attribute *attr,
const char * buf, size_t count)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);

if (down_interruptible (&md->mutex))
return -EBUSY;
@@ -195,7 +193,7 @@ static ssize_t w1_master_attribute_show_
struct device_attribute *attr,
char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;

if (down_interruptible (&md->mutex))
@@ -210,7 +208,7 @@ static ssize_t w1_master_attribute_show_

static ssize_t w1_master_attribute_show_pointer(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;

if (down_interruptible(&md->mutex))
@@ -231,7 +229,7 @@ static ssize_t w1_master_attribute_show_

static ssize_t w1_master_attribute_show_max_slave_count(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;

if (down_interruptible(&md->mutex))
@@ -245,7 +243,7 @@ static ssize_t w1_master_attribute_show_

static ssize_t w1_master_attribute_show_attempts(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;

if (down_interruptible(&md->mutex))
@@ -259,7 +257,7 @@ static ssize_t w1_master_attribute_show_

static ssize_t w1_master_attribute_show_slave_count(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
ssize_t count;

if (down_interruptible(&md->mutex))
@@ -273,7 +271,7 @@ static ssize_t w1_master_attribute_show_

static ssize_t w1_master_attribute_show_slaves(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_master *md = container_of(dev, struct w1_master, dev);
+ struct w1_master *md = dev_to_w1_master(dev);
int c = PAGE_SIZE;

if (down_interruptible(&md->mutex))
diff --git a/drivers/w1/w1.h b/drivers/w1/w1.h
--- a/drivers/w1/w1.h
+++ b/drivers/w1/w1.h
@@ -191,6 +191,21 @@ struct w1_master
int w1_create_master_attributes(struct w1_master *);
void w1_search(struct w1_master *dev, w1_slave_found_callback cb);

+static inline struct w1_slave* dev_to_w1_slave(struct device *dev)
+{
+ return container_of(dev, struct w1_slave, dev);
+}
+
+static inline struct w1_slave* kobj_to_w1_slave(struct kobject *kobj)
+{
+ return dev_to_w1_slave(container_of(kobj, struct device, kobj));
+}
+
+static inline struct w1_master* dev_to_w1_master(struct device *dev)
+{
+ return container_of(dev, struct w1_master, dev);
+}
+
#endif /* __KERNEL__ */

#endif /* __W1_H */
diff --git a/drivers/w1/w1_smem.c b/drivers/w1/w1_smem.c
--- a/drivers/w1/w1_smem.c
+++ b/drivers/w1/w1_smem.c
@@ -46,15 +46,13 @@ static struct w1_family_ops w1_smem_fops

static ssize_t w1_smem_read_name(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
+ struct w1_slave *sl = dev_to_w1_slave(dev);
return sprintf(buf, "%s\n", sl->name);
}

static ssize_t w1_smem_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
- struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj),
- struct w1_slave, dev);
+ struct w1_slave *sl = kobj_to_w1_slave(kobj);
int i;

atomic_inc(&sl->refcnt);
diff --git a/drivers/w1/w1_therm.c b/drivers/w1/w1_therm.c
--- a/drivers/w1/w1_therm.c
+++ b/drivers/w1/w1_therm.c
@@ -92,8 +92,7 @@ static struct w1_therm_family_converter

static ssize_t w1_therm_read_name(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct w1_slave *sl = container_of(dev, struct w1_slave, dev);
-
+ struct w1_slave *sl = dev_to_w1_slave(dev);
return sprintf(buf, "%s\n", sl->name);
}

@@ -148,8 +147,7 @@ static int w1_therm_check_rom(u8 rom[9])

static ssize_t w1_therm_read_bin(struct kobject *kobj, char *buf, loff_t off, size_t count)
{
- struct w1_slave *sl = container_of(container_of(kobj, struct device, kobj),
- struct w1_slave, dev);
+ struct w1_slave *sl = kobj_to_w1_slave(kobj);
struct w1_master *dev = sl->master;
u8 rom[9], crc, verdict;
int i, max_trying = 10;
-
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