From db2d0008de519c5db6baec45f7831e08790301cf Mon Sep 17 00:00:00 2001 From: Evgeniy Polyakov Date: Thu, 11 Aug 2005 17:27:49 +0400 Subject: [PATCH] [PATCH] w1: Added inline functions on top of container_of(). Signed-off-by: Evgeniy Polyakov Signed-off-by: Greg Kroah-Hartman --- 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 index b2fe0f7b0b7..39888af6d33 100644 --- a/drivers/w1/w1.c +++ b/drivers/w1/w1.c @@ -89,15 +89,13 @@ static int w1_master_remove(struct device *dev) 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_search(struct device * dev, 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_search(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)) @@ -210,7 +208,7 @@ static ssize_t w1_master_attribute_show_search(struct device *dev, 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_timeout(struct device *dev, struct devic 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_max_slave_count(struct device *dev, stru 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_attempts(struct device *dev, struct devi 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_slave_count(struct device *dev, struct d 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 index 4f0a986e33e..f8308266d8d 100644 --- 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 index 70d2d469963..2b6580c7e95 100644 --- 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 index 165526c9360..2259f3d851f 100644 --- a/drivers/w1/w1_therm.c +++ b/drivers/w1/w1_therm.c @@ -92,8 +92,7 @@ static struct w1_therm_family_converter w1_therm_families[] = { 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; -- 2.41.0