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Commit c045a734 authored by Yang Yingliang's avatar Yang Yingliang Committed by David S. Miller
Browse files

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: default avatarYang Yingliang <yangyingliang@huawei.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 49545a77

net/sched/sch_netem.c

+9 −4
Original line number Diff line number Diff line
@@ -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;

	}