3.6.11.1 stable review patch.
If anyone has any objections, please let me know.
------------------
From: Akinobu Mita <akinobu.mita@xxxxxxxxx>
[ Upstream commit 143cdd8f33909ff5a153e3f02048738c5964ba26 ]
batadv_iv_ogm_emit_send_time() attempts to calculates a random integer
in the range of 'orig_interval +- BATADV_JITTER' by the below lines.
msecs = atomic_read(&bat_priv->orig_interval) - BATADV_JITTER;
msecs += (random32() % 2 * BATADV_JITTER);
But it actually gets 'orig_interval' or 'orig_interval - BATADV_JITTER'
because '%' and '*' have same precedence and associativity is
left-to-right.
This adds the parentheses at the appropriate position so that it matches
original intension.
Signed-off-by: Akinobu Mita <akinobu.mita@xxxxxxxxx>
Acked-by: Antonio Quartulli <ordex@xxxxxxxxxxxxx>
Cc: Marek Lindner <lindner_marek@xxxxxxxx>
Cc: Simon Wunderlich <siwu@xxxxxxxxxxxxxxxxxx>
Cc: Antonio Quartulli <ordex@xxxxxxxxxxxxx>
Cc: b.a.t.m.a.n@xxxxxxxxxxxxxxxxxxx
Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
Cc: netdev@xxxxxxxxxxxxxxx
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
---
net/batman-adv/bat_iv_ogm.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 469daab..1476f26 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -119,7 +119,7 @@ batadv_iv_ogm_emit_send_time(const struct batadv_priv *bat_priv)
unsigned int msecs;
msecs = atomic_read(&bat_priv->orig_interval) - BATADV_JITTER;
- msecs += (random32() % 2 * BATADV_JITTER);
+ msecs += random32() % (2 * BATADV_JITTER);
return jiffies + msecs_to_jiffies(msecs);
}
--
1.7.10.4
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