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    Subjectdevice struct bloat
    The sizeof(struct device) is way too big, especially in the network device case.
    We want to support 1000's of device's and the change from class_device to
    net_device has caused needless bloat.

    sizeof(struct device) = 272
    sizeof(struct class_device) = 92
    * not the class_id in class_device could also be removed or changed to
    a ptr, since it is redundant for net_devices.

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