Doug / smarc-fsl-linux-kernel

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Commit 709e1b5cd9e1915ad4f6c470ebf6b55d4a911d8c

Authored by Joakim Tjernlund
Committed by David S. Miller
1 parent aaca735f4f
Exists in smarc-l5.0.0_1.0.0-ga and in 5 other branches imx_3.10.17_1.0.1_ga, imx_3.10.53_1.1.0_ga, imx_3.14.28_1.0.0_ga, smarc-imx_3.10.53_1.1.0_ga, smarc-imx_3.14.28_1.0.0_ga

bridge: message age needs to increase, not decrease. 

commit bridge: send proper message_age in config BPDU
added this gem:
  bpdu.message_age = (jiffies - root->designated_age)
  p->designated_age = jiffies + bpdu->message_age;
Notice how bpdu->message_age is negated when reassigned to
bpdu.message_age. This causes message age to decrease breaking the
STP protocol.

Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@transmode.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

Showing 1 changed file with 1 additions and 1 deletions Side-by-side Diff

... ... @@ -186,7 +186,7 @@
186 186 p->designated_cost = bpdu->root_path_cost;
187 187 p->designated_bridge = bpdu->bridge_id;
188 188 p->designated_port = bpdu->port_id;
189   - p->designated_age = jiffies + bpdu->message_age;
  189 + p->designated_age = jiffies - bpdu->message_age;
190 190  
191 191 mod_timer(&p->message_age_timer, jiffies
192 192 + (p->br->max_age - bpdu->message_age));