firewire: Use lib/ implementation of CRC ITU-T.

With the CRC ITU-T implementation available in lib/ we can use that instead.

This also fixes a bug in the topology map crc computation.

Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (fixed Kconfig)

1 files changed, 2 insertions, 3 deletions

diff --git a/drivers/firewire/fw-topology.c b/drivers/firewire/fw-topology.c
index bc8a3487c83a..018c6b8afba6 100644
--- a/drivers/firewire/fw-topology.c
+++ b/drivers/firewire/fw-topology.c
@@ -465,14 +465,13 @@ static void
 update_topology_map(struct fw_card *card, u32 *self_ids, int self_id_count)
 {
         int node_count;
-        u32 crc;
 
         card->topology_map[1]++;
         node_count = (card->root_node->node_id & 0x3f) + 1;
         card->topology_map[2] = (node_count << 16) | self_id_count;
-        crc = crc16_itu_t(card->topology_map + 1, self_id_count + 2);
-        card->topology_map[0] = ((self_id_count + 2) << 16) | crc;
+        card->topology_map[0] = (self_id_count + 2) << 16;
         memcpy(&card->topology_map[3], self_ids, self_id_count * 4);
+        fw_compute_block_crc(card->topology_map);
 }
 
 void