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netem: fix loss 4 state model 

Patch from developers of the alternative loss models, downloaded from:
   http://netgroup.uniroma2.it/twiki/bin/view.cgi/Main/NetemCLG

 "In the case 1 of the switch statement in the if conditions we
   need to add clg->a4 to clg->a1, according to the model."

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2013-11-29 11:03:35 -08:00 committed by David S. Miller
parent 7c2781fa92
commit ab6c27be81
1 changed files with 2 additions and 2 deletions
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4
net/sched/sch_netem.c
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@ -215,10 +215,10 @@ static bool loss_4state(struct netem_sched_data *q)
if (rnd < clg->a4) {
clg->state = 4;
return true;
} else if (clg->a4 < rnd && rnd < clg->a1) {
} else if (clg->a4 < rnd && rnd < clg->a1 + clg->a4) {
clg->state = 3;
return true;
} else if (clg->a1 < rnd)
} else if (clg->a1 + clg->a4 < rnd)
clg->state = 1;
break;