linux-2.6.22/include/linux/platform_device.h
#define platform_set_drvdata(_dev,data) dev_set_drvdata(&(_dev)->dev, (data))
linux-2.6.21.5/include/linux/device.h
static inline void
dev_set_drvdata (struct device *dev, void *data)
{
dev->driver_data = data;
}