diff options
| author | Eric Dumazet <eric.dumazet@gmail.com> | 2012-03-05 04:50:09 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-03-05 15:38:32 -0500 |
| commit | 77a1abf54f4b003ad6e59c535045b2ad89fedfeb (patch) | |
| tree | a76af8ea1df05266c70202e204dd639c38586334 | |
| parent | ffcb97388b1d41b1db063eb041cb9af408662127 (diff) | |
net: export netdev_stats_to_stats64
Some drivers use internal netdev stats member to store part of their
stats, yet advertize ndo_get_stats64() to implement some 64bit fields.
Allow them to use netdev_stats_to_stats64() helper to make the copy of
netdev stats before they compute their 64bit counters.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/linux/netdevice.h | 2 | ||||
| -rw-r--r-- | net/core/dev.c | 9 |
2 files changed, 7 insertions, 4 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index f1b7d037c2c..4d279c5287f 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2557,6 +2557,8 @@ extern void dev_load(struct net *net, const char *name); extern void dev_mcast_init(void); extern struct rtnl_link_stats64 *dev_get_stats(struct net_device *dev, struct rtnl_link_stats64 *storage); +extern void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, + const struct net_device_stats *netdev_stats); extern int netdev_max_backlog; extern int netdev_tstamp_prequeue; diff --git a/net/core/dev.c b/net/core/dev.c index 763a0eda715..5ef3b65c368 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -5834,12 +5834,12 @@ void netdev_run_todo(void) /* Convert net_device_stats to rtnl_link_stats64. They have the same * fields in the same order, with only the type differing. */ -static void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, - const struct net_device_stats *netdev_stats) +void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, + const struct net_device_stats *netdev_stats) { #if BITS_PER_LONG == 64 - BUILD_BUG_ON(sizeof(*stats64) != sizeof(*netdev_stats)); - memcpy(stats64, netdev_stats, sizeof(*stats64)); + BUILD_BUG_ON(sizeof(*stats64) != sizeof(*netdev_stats)); + memcpy(stats64, netdev_stats, sizeof(*stats64)); #else size_t i, n = sizeof(*stats64) / sizeof(u64); const unsigned long *src = (const unsigned long *)netdev_stats; @@ -5851,6 +5851,7 @@ static void netdev_stats_to_stats64(struct rtnl_link_stats64 *stats64, dst[i] = src[i]; #endif } +EXPORT_SYMBOL(netdev_stats_to_stats64); /** * dev_get_stats - get network device statistics |