netdev: introduce dev_get_stats()

In order for the network device ops get_stats call to be immutable, the handling
of the default internal network device stats block has to be changed. Add a new
helper function which replaces the old use of internal_get_stats.

Note: change return code to make it clear that the caller should not
go changing the returned statistics.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/net/sfc/ethtool.c b/drivers/net/sfc/ethtool.c
index abd8fcd6e62d..cd92c4d8dbc5 100644
--- a/drivers/net/sfc/ethtool.c
+++ b/drivers/net/sfc/ethtool.c
@@ -426,7 +426,7 @@ static void efx_ethtool_get_stats(struct net_device *net_dev,
         EFX_BUG_ON_PARANOID(stats->n_stats != EFX_ETHTOOL_NUM_STATS);
 
         /* Update MAC and NIC statistics */
-        net_dev->get_stats(net_dev);
+        dev_get_stats(net_dev);
 
         /* Fill detailed statistics buffer */
         for (i = 0; i < EFX_ETHTOOL_NUM_STATS; i++) {