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authorDavid Decotigny <decot@googlers.com>2018-01-18 09:59:13 -0800
committerDavid S. Miller <davem@davemloft.net>2018-01-22 15:42:05 -0500
commitb2d3bcfa26a7a8de41f358a6cae8b848673b3c6e (patch)
tree539b5266ff43bf1f842d7cd7dea2c998dff98afd /net/sched/sch_generic.c
parente8660ded7f5a9889395d33ce3d5e8c729a462bf5 (diff)
downloadlinux-sh-b2d3bcfa26a7a8de41f358a6cae8b848673b3c6e.tar.gz
net: core: Expose number of link up/down transitions
Expose the number of times the link has been going UP or DOWN, and update the "carrier_changes" counter to be the sum of these two events. While at it, also update the sysfs-class-net documentation to cover: carrier_changes (3.15), carrier_up_count (4.16) and carrier_down_count (4.16) Signed-off-by: David Decotigny <decot@googlers.com> [Florian: * rebase * add documentation * merge carrier_changes with up/down counters] Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched/sch_generic.c')
-rw-r--r--net/sched/sch_generic.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/sched/sch_generic.c b/net/sched/sch_generic.c
index ef8b4ecde2ac..1816bde47256 100644
--- a/net/sched/sch_generic.c
+++ b/net/sched/sch_generic.c
@@ -510,7 +510,7 @@ void netif_carrier_on(struct net_device *dev)
if (test_and_clear_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
if (dev->reg_state == NETREG_UNINITIALIZED)
return;
- atomic_inc(&dev->carrier_changes);
+ atomic_inc(&dev->carrier_up_count);
linkwatch_fire_event(dev);
if (netif_running(dev))
__netdev_watchdog_up(dev);
@@ -529,7 +529,7 @@ void netif_carrier_off(struct net_device *dev)
if (!test_and_set_bit(__LINK_STATE_NOCARRIER, &dev->state)) {
if (dev->reg_state == NETREG_UNINITIALIZED)
return;
- atomic_inc(&dev->carrier_changes);
+ atomic_inc(&dev->carrier_down_count);
linkwatch_fire_event(dev);
}
}