From c045a734da4cb6d4665962f252de3d8871136ae9 Mon Sep 17 00:00:00 2001 From: Yang Yingliang Date: Fri, 14 Feb 2014 10:30:43 +0800 Subject: sch_netem: replace magic numbers with enumerate in GE model Replace some magic numbers which describe states of GE model loss generator with enumerate. Signed-off-by: Yang Yingliang Signed-off-by: David S. Miller --- net/sched/sch_netem.c | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'net/sched') diff --git a/net/sched/sch_netem.c b/net/sched/sch_netem.c index 4a5eb2841351..4fced67e94c8 100644 --- a/net/sched/sch_netem.c +++ b/net/sched/sch_netem.c @@ -117,6 +117,11 @@ struct netem_sched_data { LOST_IN_BURST_PERIOD, } _4_state_model; + enum { + GOOD_STATE = 1, + BAD_STATE, + } GE_state_model; + /* Correlated Loss Generation models */ struct clgstate { /* state of the Markov chain */ @@ -272,15 +277,15 @@ static bool loss_gilb_ell(struct netem_sched_data *q) struct clgstate *clg = &q->clg; switch (clg->state) { - case 1: + case GOOD_STATE: if (prandom_u32() < clg->a1) - clg->state = 2; + clg->state = BAD_STATE; if (prandom_u32() < clg->a4) return true; break; - case 2: + case BAD_STATE: if (prandom_u32() < clg->a2) - clg->state = 1; + clg->state = GOOD_STATE; if (prandom_u32() > clg->a3) return true; } -- cgit v1.2.1