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| author | Thomas Gleixner <tglx@linutronix.de> | 2020-05-19 15:50:34 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2020-05-19 15:50:34 +0200 |
| commit | 1ed0948eea079a4c802d08cdb2e8db1eee0860f1 (patch) | |
| tree | cf7d2861d1557a305b0c7786661b9e99c343d215 /net/batman-adv/network-coding.c | |
| parent | 68f0f2690e183306b52671a9ad09fb31808b0500 (diff) | |
| parent | 6553896666433e7efec589838b400a2a652b3ffa (diff) | |
| download | linux-1ed0948eea079a4c802d08cdb2e8db1eee0860f1.tar.bz2 | |
Merge tag 'noinstr-lds-2020-05-19' into core/rcu
Get the noinstr section and annotation markers to base the RCU parts on.
Diffstat (limited to 'net/batman-adv/network-coding.c')
| -rw-r--r-- | net/batman-adv/network-coding.c | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c index 8f0717c3f7b5..b0469d15da0e 100644 --- a/net/batman-adv/network-coding.c +++ b/net/batman-adv/network-coding.c @@ -1009,15 +1009,8 @@ static struct batadv_nc_path *batadv_nc_get_path(struct batadv_priv *bat_priv, */ static u8 batadv_nc_random_weight_tq(u8 tq) { - u8 rand_val, rand_tq; - - get_random_bytes(&rand_val, sizeof(rand_val)); - /* randomize the estimated packet loss (max TQ - estimated TQ) */ - rand_tq = rand_val * (BATADV_TQ_MAX_VALUE - tq); - - /* normalize the randomized packet loss */ - rand_tq /= BATADV_TQ_MAX_VALUE; + u8 rand_tq = prandom_u32_max(BATADV_TQ_MAX_VALUE + 1 - tq); /* convert to (randomized) estimated tq again */ return BATADV_TQ_MAX_VALUE - rand_tq; |