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authorWANG Cong <xiyou.wangcong@gmail.com>2014-02-13 11:46:28 -0800
committerDavid S. Miller <davem@davemloft.net>2014-02-14 15:49:55 -0500
commit1c213bd24ad04f4430031d20d740d7783162b099 (patch)
treeeb42b8d216e89008065634185fd6a5fcce5ec4e9 /drivers/net/loopback.c
parented1acc8cd8c22efa919da8d300bab646e01c2dce (diff)
net: introduce netdev_alloc_pcpu_stats() for drivers
There are many drivers calling alloc_percpu() to allocate pcpu stats and then initializing ->syncp. So just introduce a helper function for them. Cc: David S. Miller <davem@davemloft.net> Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/loopback.c')
-rw-r--r--drivers/net/loopback.c9
1 files changed, 1 insertions, 8 deletions
diff --git a/drivers/net/loopback.c b/drivers/net/loopback.c
index e7c1d5f8ab51..771c9bfa7d31 100644
--- a/drivers/net/loopback.c
+++ b/drivers/net/loopback.c
@@ -136,16 +136,9 @@ static const struct ethtool_ops loopback_ethtool_ops = {
static int loopback_dev_init(struct net_device *dev)
{
- int i;
- dev->lstats = alloc_percpu(struct pcpu_lstats);
+ dev->lstats = netdev_alloc_pcpu_stats(struct pcpu_lstats);
if (!dev->lstats)
return -ENOMEM;
-
- for_each_possible_cpu(i) {
- struct pcpu_lstats *lb_stats;
- lb_stats = per_cpu_ptr(dev->lstats, i);
- u64_stats_init(&lb_stats->syncp);
- }
return 0;
}