3.5.7.3 -stable review patch. If anyone has any objections, please let me know.

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From: Akinobu Mita akinobu.mita@gmail.com

commit 143cdd8f33909ff5a153e3f02048738c5964ba26 upstream.

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@gmail.com Acked-by: Antonio Quartulli ordex@autistici.org Cc: Marek Lindner lindner_marek@yahoo.de Cc: Simon Wunderlich siwu@hrz.tu-chemnitz.de Cc: Antonio Quartulli ordex@autistici.org Cc: b.a.t.m.a.n@lists.open-mesh.org Cc: "David S. Miller" davem@davemloft.net Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Herton Ronaldo Krzesinski herton.krzesinski@canonical.com --- 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 dc53798..bcf3760 100644 --- a/net/batman-adv/bat_iv_ogm.c +++ b/net/batman-adv/bat_iv_ogm.c @@ -117,7 +117,7 @@ static unsigned long bat_iv_ogm_emit_send_time(const struct bat_priv *bat_priv) { return jiffies + msecs_to_jiffies( atomic_read(&bat_priv->orig_interval) - - JITTER + (random32() % 2*JITTER)); + JITTER + (random32() % (2*JITTER))); }

/* when do we schedule a ogm packet to be sent */