diff options
Diffstat (limited to 'net/dccp/ccids/lib/tfrc.h')
| -rw-r--r-- | net/dccp/ccids/lib/tfrc.h | 16 |
1 files changed, 0 insertions, 16 deletions
diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h index ede12f53de5..ed9857527ac 100644 --- a/net/dccp/ccids/lib/tfrc.h +++ b/net/dccp/ccids/lib/tfrc.h @@ -48,21 +48,6 @@ static inline u32 scaled_div32(u64 a, u64 b) } /** - * tfrc_scaled_sqrt - Compute scaled integer sqrt(x) for 0 < x < 2^22-1 - * Uses scaling to improve accuracy of the integer approximation of sqrt(). The - * scaling factor of 2^10 limits the maximum @sample to 4e6; this is okay for - * clamped RTT samples (dccp_sample_rtt). - * Should best be used for expressions of type sqrt(x)/sqrt(y), since then the - * scaling factor is neutralised. For this purpose, it avoids returning zero. - */ -static inline u16 tfrc_scaled_sqrt(const u32 sample) -{ - const unsigned long non_zero_sample = sample ? : 1; - - return int_sqrt(non_zero_sample << 10); -} - -/** * tfrc_ewma - Exponentially weighted moving average * @weight: Weight to be used as damping factor, in units of 1/10 */ @@ -73,7 +58,6 @@ static inline u32 tfrc_ewma(const u32 avg, const u32 newval, const u8 weight) extern u32 tfrc_calc_x(u16 s, u32 R, u32 p); extern u32 tfrc_calc_x_reverse_lookup(u32 fvalue); -extern u32 tfrc_invert_loss_event_rate(u32 loss_event_rate); extern int tfrc_tx_packet_history_init(void); extern void tfrc_tx_packet_history_exit(void); |