net: bareudp: Do not allocate stats in the driver

With commit 34d21de99cea9 ("net: Move {l,t,d}stats allocation to core and
convert veth & vrf"), stats allocation could be done on net core
instead of this driver.

With this new approach, the driver doesn't have to bother with error
handling (allocation failure checking, making sure free happens in the
right spot, etc). This is core responsibility now.

Remove the allocation in the bareudp driver and leverage the network
core allocation.

Signed-off-by: Breno Leitao <leitao@debian.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/bareudp.c b/drivers/net/bareudp.c
index 4db6122c9b43032a36b98916bb4390e3d6f08f68..27408f0b93d62367c225fe4f648b7a3f8a20a98c 100644 (file)
--- a/drivers/net/bareudp.c
+++ b/drivers/net/bareudp.c
@@ -194,15 +194,10 @@ static int bareudp_init(struct net_device *dev)
        struct bareudp_dev *bareudp = netdev_priv(dev);
        int err;
 
-       dev->tstats = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
-       if (!dev->tstats)
-               return -ENOMEM;
-
        err = gro_cells_init(&bareudp->gro_cells, dev);
-       if (err) {
-               free_percpu(dev->tstats);
+       if (err)
                return err;
-       }
+
        return 0;
 }
 
@@ -211,7 +206,6 @@ static void bareudp_uninit(struct net_device *dev)
        struct bareudp_dev *bareudp = netdev_priv(dev);
 
        gro_cells_destroy(&bareudp->gro_cells);
-       free_percpu(dev->tstats);
 }
 
 static struct socket *bareudp_create_sock(struct net *net, __be16 port)
@@ -567,6 +561,7 @@ static void bareudp_setup(struct net_device *dev)
        netif_keep_dst(dev);
        dev->priv_flags |= IFF_NO_QUEUE;
        dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
+       dev->pcpu_stat_type = NETDEV_PCPU_STAT_TSTATS;
 }
 
 static int bareudp_validate(struct nlattr *tb[], struct nlattr *data[],