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net: mv643xx_eth: update statistics timer from timer context only 

Each port driver installs a periodic timer to update port statistics
by calling mib_counters_update. As mib_counters_update is also called
from non-timer context, we should not reschedule the timer there but
rather move it to timer-only context.

Signed-off-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Sebastian Hesselbarth 2013-10-02 12:57:20 +02:00 committed by David S. Miller
parent e18503f41f
commit 041b4ddb84
1 changed files with 1 additions and 3 deletions
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4
drivers/net/ethernet/marvell/mv643xx_eth.c
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@ -1131,15 +1131,13 @@ static void mib_counters_update(struct mv643xx_eth_private *mp)
p->rx_discard += rdlp(mp, RX_DISCARD_FRAME_CNT);
p->rx_overrun += rdlp(mp, RX_OVERRUN_FRAME_CNT);
spin_unlock_bh(&mp->mib_counters_lock);
mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
}
static void mib_counters_timer_wrapper(unsigned long _mp)
{
struct mv643xx_eth_private *mp = (void *)_mp;
mib_counters_update(mp);
mod_timer(&mp->mib_counters_timer, jiffies + 30 * HZ);
}