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dccp ccid-3: Replace lazy BUG_ON with condition

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The BUG_ON(w_tot == 0) only holds if there is no more than 1 loss interval in
the loss history. If there is only a single loss interval, the calc_i_mean()
routine need in fact not be called (RFC 3448, 6.3.1). 

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
This commit is contained in:
Gerrit Renker 2008-08-23 13:28:27 +02:00
parent 157439fa4a
commit eff253c427
1 changed files with 4 additions and 2 deletions
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6
net/dccp/ccids/lib/loss_interval.c
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@ -67,7 +67,10 @@ static void tfrc_lh_calc_i_mean(struct tfrc_loss_hist *lh)
u32 i_i, i_tot0 = 0, i_tot1 = 0, w_tot = 0;
int i, k = tfrc_lh_length(lh) - 1; /* k is as in rfc3448bis, 5.4 */
for (i=0; i <= k; i++) {
if (k <= 0)
return;
for (i = 0; i <= k; i++) {
i_i = tfrc_lh_get_interval(lh, i);
if (i < k) {
@ -78,7 +81,6 @@ static void tfrc_lh_calc_i_mean(struct tfrc_loss_hist *lh)
i_tot1 += i_i * tfrc_lh_weights[i-1];
}
BUG_ON(w_tot == 0);
lh->i_mean = max(i_tot0, i_tot1) / w_tot;
}