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>

1 files changed, 1 insertions, 8 deletions

diff --git a/drivers/net/ethernet/marvell/mvneta.c b/drivers/net/ethernet/marvell/mvneta.c
index f418f4f20f94..12c6a66e54d1 100644
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2784,7 +2784,6 @@ static int mvneta_probe(struct platform_device *pdev)
         const char *mac_from;
         int phy_mode;
         int err;
-        int cpu;
 
         /* Our multiqueue support is not complete, so for now, only
          * allow the usage of the first RX queue
@@ -2845,18 +2844,12 @@ static int mvneta_probe(struct platform_device *pdev)
         }
 
         /* Alloc per-cpu stats */
-        pp->stats = alloc_percpu(struct mvneta_pcpu_stats);
+        pp->stats = netdev_alloc_pcpu_stats(struct mvneta_pcpu_stats);
         if (!pp->stats) {
                 err = -ENOMEM;
                 goto err_unmap;
         }
 
-        for_each_possible_cpu(cpu) {
-                struct mvneta_pcpu_stats *stats;
-                stats = per_cpu_ptr(pp->stats, cpu);
-                u64_stats_init(&stats->syncp);
-        }
-
         dt_mac_addr = of_get_mac_address(dn);
         if (dt_mac_addr) {
                 mac_from = "device tree";