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| author |   Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2008-08-23 13:28:27 +0200 |
|---|---|---|
| committer | Gerrit Renker <gerrit@erg.abdn.ac.uk> | 2008-09-04 07:45:25 +0200 |
| commit | 959fd992f05b7468bf30d759ac0c9fd0ef0fa80b (patch) | |
| tree | 936a599345610ce11d5070e17dc6a72f0949285e /net/dccp/ccids/lib | |
| parent | dccp: Toggle debug output without module unloading (diff) | |
| download | linux-dev-959fd992f05b7468bf30d759ac0c9fd0ef0fa80b.tar.xz linux-dev-959fd992f05b7468bf30d759ac0c9fd0ef0fa80b.zip | |
dccp ccid-3: Replace lazy BUG_ON with condition
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>
Diffstat (limited to 'net/dccp/ccids/lib')
| -rw-r--r-- | net/dccp/ccids/lib/loss_interval.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/net/dccp/ccids/lib/loss_interval.c b/net/dccp/ccids/lib/loss_interval.c index bcd6ac415bb9..5b3ce0688c5c 100644 --- a/net/dccp/ccids/lib/loss_interval.c +++ b/net/dccp/ccids/lib/loss_interval.c @@ -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; } |