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Commit 4a3ad20c authored by Greg Kroah-Hartman's avatar Greg Kroah-Hartman
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Driver core: coding style fixes 

Fix up a number of coding style issues in the drivers/base/ directory
that have annoyed me over the years.  checkpatch.pl is now very happy.
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@suse.de>
parent e374a2bf
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Showing with 545 additions and 583 deletions
drivers/base/base.h
View file @ 4a3ad20c
......@@ -50,15 +50,15 @@ extern int platform_bus_init(void);
extern int system_bus_init(void);
extern int cpu_dev_init(void);
extern int bus_add_device(struct device * dev);
extern void bus_attach_device(struct device * dev);
extern void bus_remove_device(struct device * dev);
extern int bus_add_device(struct device *dev);
extern void bus_attach_device(struct device *dev);
extern void bus_remove_device(struct device *dev);
extern int bus_add_driver(struct device_driver *);
extern void bus_remove_driver(struct device_driver *);
extern int bus_add_driver(struct device_driver *drv);
extern void bus_remove_driver(struct device_driver *drv);
extern void driver_detach(struct device_driver * drv);
extern int driver_probe_device(struct device_driver *, struct device *);
extern void driver_detach(struct device_driver *drv);
extern int driver_probe_device(struct device_driver *drv, struct device *dev);
extern void sysdev_shutdown(void);
extern int sysdev_suspend(pm_message_t state);
......
drivers/base/bus.c
View file @ 4a3ad20c
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drivers/base/class.c
View file @ 4a3ad20c
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drivers/base/core.c
View file @ 4a3ad20c
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drivers/base/dd.c
View file @ 4a3ad20c
/*
* drivers/base/dd.c - The core device/driver interactions.
* drivers/base/dd.c - The core device/driver interactions.
*
* This file contains the (sometimes tricky) code that controls the
* interactions between devices and drivers, which primarily includes
* driver binding and unbinding.
* This file contains the (sometimes tricky) code that controls the
* interactions between devices and drivers, which primarily includes
* driver binding and unbinding.
*
* All of this code used to exist in drivers/base/bus.c, but was
* relocated to here in the name of compartmentalization (since it wasn't
* strictly code just for the 'struct bus_type'.
* All of this code used to exist in drivers/base/bus.c, but was
* relocated to here in the name of compartmentalization (since it wasn't
* strictly code just for the 'struct bus_type'.
*
* Copyright (c) 2002-5 Patrick Mochel
* Copyright (c) 2002-3 Open Source Development Labs
* Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
* Copyright (c) 2007 Novell Inc.
* Copyright (c) 2002-5 Patrick Mochel
* Copyright (c) 2002-3 Open Source Development Labs
* Copyright (c) 2007 Greg Kroah-Hartman <gregkh@suse.de>
* Copyright (c) 2007 Novell Inc.
*
* This file is released under the GPLv2
* This file is released under the GPLv2
*/
#include <linux/device.h>
......@@ -71,18 +71,18 @@ static void driver_sysfs_remove(struct device *dev)
}
/**
* device_bind_driver - bind a driver to one device.
* @dev: device.
* device_bind_driver - bind a driver to one device.
* @dev: device.
*
* Allow manual attachment of a driver to a device.
* Caller must have already set @dev->driver.
* Allow manual attachment of a driver to a device.
* Caller must have already set @dev->driver.
*
* Note that this does not modify the bus reference count
* nor take the bus's rwsem. Please verify those are accounted
* for before calling this. (It is ok to call with no other effort
* from a driver's probe() method.)
* Note that this does not modify the bus reference count
* nor take the bus's rwsem. Please verify those are accounted
* for before calling this. (It is ok to call with no other effort
* from a driver's probe() method.)
*
* This function must be called with @dev->sem held.
* This function must be called with @dev->sem held.
*/
int device_bind_driver(struct device *dev)
{
......@@ -93,6 +93,7 @@ int device_bind_driver(struct device *dev)
driver_bound(dev);
return ret;
}
EXPORT_SYMBOL_GPL(device_bind_driver);
static atomic_t probe_count = ATOMIC_INIT(0);
static DECLARE_WAIT_QUEUE_HEAD(probe_waitqueue);
......@@ -183,7 +184,7 @@ int driver_probe_done(void)
* This function must be called with @dev->sem held. When called for a
* USB interface, @dev->parent->sem must be held as well.
*/
int driver_probe_device(struct device_driver * drv, struct device * dev)
int driver_probe_device(struct device_driver *drv, struct device *dev)
{
int ret = 0;
......@@ -201,27 +202,27 @@ int driver_probe_device(struct device_driver * drv, struct device * dev)
return ret;
}
static int __device_attach(struct device_driver * drv, void * data)
static int __device_attach(struct device_driver *drv, void *data)
{
struct device * dev = data;
struct device *dev = data;
return driver_probe_device(drv, dev);
}
/**
* device_attach - try to attach device to a driver.
* @dev: device.
* device_attach - try to attach device to a driver.
* @dev: device.
*
* Walk the list of drivers that the bus has and call
* driver_probe_device() for each pair. If a compatible
* pair is found, break out and return.
* Walk the list of drivers that the bus has and call
* driver_probe_device() for each pair. If a compatible
* pair is found, break out and return.
*
* Returns 1 if the device was bound to a driver;
* 0 if no matching device was found;
* -ENODEV if the device is not registered.
* Returns 1 if the device was bound to a driver;
* 0 if no matching device was found;
* -ENODEV if the device is not registered.
*
* When called for a USB interface, @dev->parent->sem must be held.
* When called for a USB interface, @dev->parent->sem must be held.
*/
int device_attach(struct device * dev)
int device_attach(struct device *dev)
{
int ret = 0;
......@@ -240,10 +241,11 @@ int device_attach(struct device * dev)
up(&dev->sem);
return ret;
}
EXPORT_SYMBOL_GPL(device_attach);
static int __driver_attach(struct device * dev, void * data)
static int __driver_attach(struct device *dev, void *data)
{
struct device_driver * drv = data;
struct device_driver *drv = data;
/*
* Lock device and try to bind to it. We drop the error
......@@ -268,26 +270,27 @@ static int __driver_attach(struct device * dev, void * data)
}
/**
* driver_attach - try to bind driver to devices.
* @drv: driver.
* driver_attach - try to bind driver to devices.
* @drv: driver.
*
* Walk the list of devices that the bus has on it and try to
* match the driver with each one. If driver_probe_device()
* returns 0 and the @dev->driver is set, we've found a
* compatible pair.
* Walk the list of devices that the bus has on it and try to
* match the driver with each one. If driver_probe_device()
* returns 0 and the @dev->driver is set, we've found a
* compatible pair.
*/
int driver_attach(struct device_driver * drv)
int driver_attach(struct device_driver *drv)
{
return bus_for_each_dev(drv->bus, NULL, drv, __driver_attach);
}
EXPORT_SYMBOL_GPL(driver_attach);
/*
* __device_release_driver() must be called with @dev->sem held.
* When called for a USB interface, @dev->parent->sem must be held as well.
* __device_release_driver() must be called with @dev->sem held.
* When called for a USB interface, @dev->parent->sem must be held as well.
*/
static void __device_release_driver(struct device * dev)
static void __device_release_driver(struct device *dev)
{
struct device_driver * drv;
struct device_driver *drv;
drv = dev->driver;
if (drv) {
......@@ -310,13 +313,13 @@ static void __device_release_driver(struct device * dev)
}
/**
* device_release_driver - manually detach device from driver.
* @dev: device.
* device_release_driver - manually detach device from driver.
* @dev: device.
*
* Manually detach device from driver.
* When called for a USB interface, @dev->parent->sem must be held.
* Manually detach device from driver.
* When called for a USB interface, @dev->parent->sem must be held.
*/
void device_release_driver(struct device * dev)
void device_release_driver(struct device *dev)
{
/*
* If anyone calls device_release_driver() recursively from
......@@ -327,15 +330,15 @@ void device_release_driver(struct device * dev)
__device_release_driver(dev);
up(&dev->sem);
}
EXPORT_SYMBOL_GPL(device_release_driver);
/**
* driver_detach - detach driver from all devices it controls.
* @drv: driver.
*/
void driver_detach(struct device_driver * drv)
void driver_detach(struct device_driver *drv)
{
struct device * dev;
struct device *dev;
for (;;) {
spin_lock(&drv->p->klist_devices.k_lock);
......@@ -359,9 +362,3 @@ void driver_detach(struct device_driver * drv)
put_device(dev);
}
}
EXPORT_SYMBOL_GPL(device_bind_driver);
EXPORT_SYMBOL_GPL(device_release_driver);
EXPORT_SYMBOL_GPL(device_attach);
EXPORT_SYMBOL_GPL(driver_attach);
drivers/base/driver.c
View file @ 4a3ad20c
......@@ -19,27 +19,26 @@
#define to_dev(node) container_of(node, struct device, driver_list)
static struct device * next_device(struct klist_iter * i)
static struct device *next_device(struct klist_iter *i)
{
struct klist_node * n = klist_next(i);
struct klist_node *n = klist_next(i);
return n ? container_of(n, struct device, knode_driver) : NULL;
}
/**
* driver_for_each_device - Iterator for devices bound to a driver.
* @drv: Driver we're iterating.
* @start: Device to begin with
* @data: Data to pass to the callback.
* @fn: Function to call for each device.
* driver_for_each_device - Iterator for devices bound to a driver.
* @drv: Driver we're iterating.
* @start: Device to begin with
* @data: Data to pass to the callback.
* @fn: Function to call for each device.
*
* Iterate over the @drv's list of devices calling @fn for each one.
* Iterate over the @drv's list of devices calling @fn for each one.
*/
int driver_for_each_device(struct device_driver * drv, struct device * start,
void * data, int (*fn)(struct device *, void *))
int driver_for_each_device(struct device_driver *drv, struct device *start,
void *data, int (*fn)(struct device *, void *))
{
struct klist_iter i;
struct device * dev;
struct device *dev;
int error = 0;
if (!drv)
......@@ -52,10 +51,8 @@ int driver_for_each_device(struct device_driver * drv, struct device * start,
klist_iter_exit(&i);
return error;
}
EXPORT_SYMBOL_GPL(driver_for_each_device);
/**
* driver_find_device - device iterator for locating a particular device.
* @drv: The device's driver
......@@ -71,9 +68,9 @@ EXPORT_SYMBOL_GPL(driver_for_each_device);
* if it does. If the callback returns non-zero, this function will
* return to the caller and not iterate over any more devices.
*/
struct device * driver_find_device(struct device_driver *drv,
struct device * start, void * data,
int (*match)(struct device *, void *))
struct device *driver_find_device(struct device_driver *drv,
struct device *start, void *data,
int (*match)(struct device *dev, void *data))
{
struct klist_iter i;
struct device *dev;
......@@ -92,12 +89,12 @@ struct device * driver_find_device(struct device_driver *drv,
EXPORT_SYMBOL_GPL(driver_find_device);
/**
* driver_create_file - create sysfs file for driver.
* @drv: driver.
* @attr: driver attribute descriptor.
* driver_create_file - create sysfs file for driver.
* @drv: driver.
* @attr: driver attribute descriptor.
*/
int driver_create_file(struct device_driver * drv, struct driver_attribute * attr)
int driver_create_file(struct device_driver *drv,
struct driver_attribute *attr)
{
int error;
if (get_driver(drv)) {
......@@ -107,22 +104,22 @@ int driver_create_file(struct device_driver * drv, struct driver_attribute * att
error = -EINVAL;
return error;
}
EXPORT_SYMBOL_GPL(driver_create_file);
/**
* driver_remove_file - remove sysfs file for driver.
* @drv: driver.
* @attr: driver attribute descriptor.
* driver_remove_file - remove sysfs file for driver.
* @drv: driver.
* @attr: driver attribute descriptor.
*/
void driver_remove_file(struct device_driver * drv, struct driver_attribute * attr)
void driver_remove_file(struct device_driver *drv,
struct driver_attribute *attr)
{
if (get_driver(drv)) {
sysfs_remove_file(&drv->p->kobj, &attr->attr);
put_driver(drv);
}
}
EXPORT_SYMBOL_GPL(driver_remove_file);
/**
* driver_add_kobj - add a kobject below the specified driver
......@@ -149,10 +146,10 @@ int driver_add_kobj(struct device_driver *drv, struct kobject *kobj,
EXPORT_SYMBOL_GPL(driver_add_kobj);
/**
* get_driver - increment driver reference count.
* @drv: driver.
* get_driver - increment driver reference count.
* @drv: driver.
*/
struct device_driver * get_driver(struct device_driver * drv)
struct device_driver *get_driver(struct device_driver *drv)
{
if (drv) {
struct driver_private *priv;
......@@ -164,16 +161,17 @@ struct device_driver * get_driver(struct device_driver * drv)
}
return NULL;
}
EXPORT_SYMBOL_GPL(get_driver);
/**
* put_driver - decrement driver's refcount.
* @drv: driver.
* put_driver - decrement driver's refcount.
* @drv: driver.
*/
void put_driver(struct device_driver * drv)
void put_driver(struct device_driver *drv)
{
kobject_put(&drv->p->kobj);
}
EXPORT_SYMBOL_GPL(put_driver);
static int driver_add_groups(struct device_driver *drv,
struct attribute_group **groups)
......@@ -205,24 +203,23 @@ static void driver_remove_groups(struct device_driver *drv,
sysfs_remove_group(&drv->p->kobj, groups[i]);
}
/**
* driver_register - register driver with bus
* @drv: driver to register
* driver_register - register driver with bus
* @drv: driver to register
*
* We pass off most of the work to the bus_add_driver() call,
* since most of the things we have to do deal with the bus
* structures.
* We pass off most of the work to the bus_add_driver() call,
* since most of the things we have to do deal with the bus
* structures.
*/
int driver_register(struct device_driver * drv)
int driver_register(struct device_driver *drv)
{
int ret;
if ((drv->bus->probe && drv->probe) ||
(drv->bus->remove && drv->remove) ||
(drv->bus->shutdown && drv->shutdown)) {
printk(KERN_WARNING "Driver '%s' needs updating - please use bus_type methods\n", drv->name);
}
(drv->bus->shutdown && drv->shutdown))
printk(KERN_WARNING "Driver '%s' needs updating - please use "
"bus_type methods\n", drv->name);
ret = bus_add_driver(drv);
if (ret)
return ret;
......@@ -231,29 +228,30 @@ int driver_register(struct device_driver * drv)
bus_remove_driver(drv);
return ret;
}
EXPORT_SYMBOL_GPL(driver_register);
/**
* driver_unregister - remove driver from system.
* @drv: driver.
* driver_unregister - remove driver from system.
* @drv: driver.
*
* Again, we pass off most of the work to the bus-level call.
* Again, we pass off most of the work to the bus-level call.
*/
void driver_unregister(struct device_driver * drv)
void driver_unregister(struct device_driver *drv)
{
driver_remove_groups(drv, drv->groups);
bus_remove_driver(drv);
}
EXPORT_SYMBOL_GPL(driver_unregister);
/**
* driver_find - locate driver on a bus by its name.
* @name: name of the driver.
* @bus: bus to scan for the driver.
* driver_find - locate driver on a bus by its name.
* @name: name of the driver.
* @bus: bus to scan for the driver.
*
* Call kset_find_obj() to iterate over list of drivers on
* a bus to find driver by name. Return driver if found.
* Call kset_find_obj() to iterate over list of drivers on
* a bus to find driver by name. Return driver if found.
*
* Note that kset_find_obj increments driver's reference count.
* Note that kset_find_obj increments driver's reference count.
*/
struct device_driver *driver_find(const char *name, struct bus_type *bus)
{
......@@ -266,12 +264,4 @@ struct device_driver *driver_find(const char *name, struct bus_type *bus)
}
return NULL;
}
EXPORT_SYMBOL_GPL(driver_register);
EXPORT_SYMBOL_GPL(driver_unregister);
EXPORT_SYMBOL_GPL(get_driver);
EXPORT_SYMBOL_GPL(put_driver);
EXPORT_SYMBOL_GPL(driver_find);
EXPORT_SYMBOL_GPL(driver_create_file);
EXPORT_SYMBOL_GPL(driver_remove_file);
drivers/base/init.c
View file @ 4a3ad20c
/*
*
* Copyright (c) 2002-3 Patrick Mochel
* Copyright (c) 2002-3 Open Source Development Labs
*
* This file is released under the GPLv2
*
*/
#include <linux/device.h>
......@@ -14,12 +12,11 @@
#include "base.h"
/**
* driver_init - initialize driver model.
* driver_init - initialize driver model.
*
* Call the driver model init functions to initialize their
* subsystems. Called early from init/main.c.
* Call the driver model init functions to initialize their
* subsystems. Called early from init/main.c.
*/
void __init driver_init(void)
{
/* These are the core pieces */
......
drivers/base/platform.c
View file @ 4a3ad20c
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