Commit 77a1abf5 authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller

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: default avatarEric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent ffcb9738
......@@ -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;
......
......@@ -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
......
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