static void sja1105_status_unpack(void *buf, struct sja1105_status *status)
{
	/* So that addition translates to 4 bytes */
	u32 *p = buf;

	/* device_id is missing from the buffer, but we don't
	 * want to diverge from the manual definition of the
	 * register addresses, so we'll back off one step with
	 * the register pointer, and never access p[0].
	 */
	p--;
	sja1105_unpack(p + 0x1, &status->configs,   31, 31, 4);
	sja1105_unpack(p + 0x1, &status->crcchkl,   30, 30, 4);
	sja1105_unpack(p + 0x1, &status->ids,       29, 29, 4);
	sja1105_unpack(p + 0x1, &status->crcchkg,   28, 28, 4);
}
Unknown