e100: timer power saving

Since E100 timer is 2HZ, use rounding to make timer occur on the
correct boundary.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 2 insertions, 1 deletions

diff --git a/drivers/net/e100.c b/drivers/net/e100.c
index e25f5ec2b279..10907f158bac 100644
--- a/drivers/net/e100.c
+++ b/drivers/net/e100.c
@@ -1605,7 +1605,8 @@ static void e100_watchdog(unsigned long data)
         else
                 nic->flags &= ~ich_10h_workaround;
 
-        mod_timer(&nic->watchdog, jiffies + E100_WATCHDOG_PERIOD);
+        mod_timer(&nic->watchdog,
+                  round_jiffies(jiffies + E100_WATCHDOG_PERIOD));
 }
 
 static void e100_xmit_prepare(struct nic *nic, struct cb *cb,