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bus: Make struct device a pointer 

struct bus_type contains an embedded struct device_d which is quite
a big structure. Dynamically allocate this instead to save the space
in the binary.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
This commit is contained in:
Sascha Hauer 2013-03-06 20:03:50 +01:00
parent 7a76f0607b
commit 1a66a77567
3 changed files with 6 additions and 5 deletions
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7
drivers/base/bus.c
View File

@ -30,10 +30,11 @@ int bus_register(struct bus_type *bus)
if (get_bus_by_name(bus->name))
return -EEXIST;
strcpy(bus->dev.name, bus->name);
bus->dev.id = DEVICE_ID_SINGLE;
bus->dev = xzalloc(sizeof(*bus->dev));
strcpy(bus->dev->name, bus->name);
bus->dev->id = DEVICE_ID_SINGLE;
ret = register_device(&bus->dev);
ret = register_device(bus->dev);
if (ret)
return ret;

2
drivers/base/driver.c
View File

@ -135,7 +135,7 @@ int register_device(struct device_d *new_device)
if (new_device->bus) {
if (!new_device->parent)
new_device->parent = &new_device->bus->dev;
new_device->parent = new_device->bus->dev;
list_add_tail(&new_device->bus_list, &new_device->bus->device_list);

2
include/driver.h
View File

@ -368,7 +368,7 @@ struct bus_type {
int (*probe)(struct device_d *dev);
void (*remove)(struct device_d *dev);
struct device_d dev;
struct device_d *dev;
struct list_head list;
struct list_head device_list;