net: ena: use setup_timer() and mod_timer()

Use setup_timer() instead of init_timer(), being the preferred/standard
way to set a timer up.

Also, quoting the mod_timer() function comment:
-> mod_timer() is a more efficient way to update the expire field of an
   active timer (if the timer is inactive it will be activated).

Use setup_timer and mod_timer to setup and arm a timer, to make the code
cleaner and easier to read.

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/amazon/ena/ena_netdev.c b/drivers/net/ethernet/amazon/ena/ena_netdev.c
index 2a55ab0..cc8b13e 100644 (file)
--- a/drivers/net/ethernet/amazon/ena/ena_netdev.c
+++ b/drivers/net/ethernet/amazon/ena/ena_netdev.c
@@ -3013,12 +3013,9 @@ static int ena_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 
        adapter->last_keep_alive_jiffies = jiffies;
 
-       init_timer(&adapter->timer_service);
-       adapter->timer_service.expires = round_jiffies(jiffies + HZ);
-       adapter->timer_service.function = ena_timer_service;
-       adapter->timer_service.data = (unsigned long)adapter;
-
-       add_timer(&adapter->timer_service);
+       setup_timer(&adapter->timer_service, ena_timer_service,
+                   (unsigned long)adapter);
+       mod_timer(&adapter->timer_service, round_jiffies(jiffies + HZ));
 
        dev_info(&pdev->dev, "%s found at mem %lx, mac addr %pM Queues %d\n",
                 DEVICE_NAME, (long)pci_resource_start(pdev, 0),