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authorEric Dumazet <eric.dumazet@gmail.com>2012-03-05 04:50:09 +0000
committerDavid S. Miller <davem@davemloft.net>2012-03-05 15:38:32 -0500
commit77a1abf54f4b003ad6e59c535045b2ad89fedfeb (patch)
treea76af8ea1df05266c70202e204dd639c38586334 /net/core
parentffcb97388b1d41b1db063eb041cb9af408662127 (diff)
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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>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 763a0ed..5ef3b65 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