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net: introduce netdev_alloc_pcpu_stats() for drivers

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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>
This commit is contained in:
WANG Cong
2014-02-13 11:46:28 -08:00
committed by David S. Miller
parent ed1acc8cd8
commit 1c213bd24a
19 changed files with 35 additions and 154 deletions
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9
drivers/net/ethernet/marvell/mvneta.c
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@@ -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";