CONTROL_BUFFER_SIZE
memset(buf, 0, CONTROL_BUFFER_SIZE);
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
if (unlikely((off > CONTROL_BUFFER_SIZE - 8) ||
(len > CONTROL_BUFFER_SIZE - 8 - off)))
u.buf = kmalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
(void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
halt = kzalloc(CONTROL_BUFFER_SIZE, GFP_KERNEL);
(void) rndis_command(dev, (void *)halt, CONTROL_BUFFER_SIZE);