diff options
Diffstat (limited to 'net/dccp/ccids/lib/tfrc.h')
-rw-r--r-- | net/dccp/ccids/lib/tfrc.h | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/net/dccp/ccids/lib/tfrc.h b/net/dccp/ccids/lib/tfrc.h index 1fb1187bbf1c..ed9857527acf 100644 --- a/net/dccp/ccids/lib/tfrc.h +++ b/net/dccp/ccids/lib/tfrc.h | |||
@@ -15,7 +15,7 @@ | |||
15 | * (at your option) any later version. | 15 | * (at your option) any later version. |
16 | */ | 16 | */ |
17 | #include <linux/types.h> | 17 | #include <linux/types.h> |
18 | #include <asm/div64.h> | 18 | #include <linux/math64.h> |
19 | #include "../../dccp.h" | 19 | #include "../../dccp.h" |
20 | /* internal includes that this module exports: */ | 20 | /* internal includes that this module exports: */ |
21 | #include "loss_interval.h" | 21 | #include "loss_interval.h" |
@@ -29,21 +29,19 @@ extern int tfrc_debug; | |||
29 | #endif | 29 | #endif |
30 | 30 | ||
31 | /* integer-arithmetic divisions of type (a * 1000000)/b */ | 31 | /* integer-arithmetic divisions of type (a * 1000000)/b */ |
32 | static inline u64 scaled_div(u64 a, u32 b) | 32 | static inline u64 scaled_div(u64 a, u64 b) |
33 | { | 33 | { |
34 | BUG_ON(b==0); | 34 | BUG_ON(b==0); |
35 | a *= 1000000; | 35 | return div64_u64(a * 1000000, b); |
36 | do_div(a, b); | ||
37 | return a; | ||
38 | } | 36 | } |
39 | 37 | ||
40 | static inline u32 scaled_div32(u64 a, u32 b) | 38 | static inline u32 scaled_div32(u64 a, u64 b) |
41 | { | 39 | { |
42 | u64 result = scaled_div(a, b); | 40 | u64 result = scaled_div(a, b); |
43 | 41 | ||
44 | if (result > UINT_MAX) { | 42 | if (result > UINT_MAX) { |
45 | DCCP_CRIT("Overflow: a(%llu)/b(%u) > ~0U", | 43 | DCCP_CRIT("Overflow: %llu/%llu > UINT_MAX", |
46 | (unsigned long long)a, b); | 44 | (unsigned long long)a, (unsigned long long)b); |
47 | return UINT_MAX; | 45 | return UINT_MAX; |
48 | } | 46 | } |
49 | return result; | 47 | return result; |
@@ -58,7 +56,14 @@ static inline u32 tfrc_ewma(const u32 avg, const u32 newval, const u8 weight) | |||
58 | return avg ? (weight * avg + (10 - weight) * newval) / 10 : newval; | 56 | return avg ? (weight * avg + (10 - weight) * newval) / 10 : newval; |
59 | } | 57 | } |
60 | 58 | ||
61 | extern u32 tfrc_calc_x(u16 s, u32 R, u32 p); | 59 | extern u32 tfrc_calc_x(u16 s, u32 R, u32 p); |
62 | extern u32 tfrc_calc_x_reverse_lookup(u32 fvalue); | 60 | extern u32 tfrc_calc_x_reverse_lookup(u32 fvalue); |
63 | 61 | ||
62 | extern int tfrc_tx_packet_history_init(void); | ||
63 | extern void tfrc_tx_packet_history_exit(void); | ||
64 | extern int tfrc_rx_packet_history_init(void); | ||
65 | extern void tfrc_rx_packet_history_exit(void); | ||
66 | |||
67 | extern int tfrc_li_init(void); | ||
68 | extern void tfrc_li_exit(void); | ||
64 | #endif /* _TFRC_H_ */ | 69 | #endif /* _TFRC_H_ */ |