firewire: Implement topology map and fix a couple of loopback bugs.

Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>

drivers/firewire/fw-card.c

@@ -30,7 +30,7 @@
  * polynomial, but we need the ITU-T (or CCITT) polynomial (0x1021).
  * The implementation below works on an array of host-endian u32
  * words, assuming they'll be transmited msb first. */
-static u16
+u16
 crc16_itu_t(const u32 *buffer, size_t length)
 {
 	int shift, i;