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| author | David Decotigny <decot@googlers.com> | 2018-01-18 09:59:13 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-01-22 15:42:05 -0500 |
| commit | b2d3bcfa26a7a8de41f358a6cae8b848673b3c6e (patch) | |
| tree | 539b5266ff43bf1f842d7cd7dea2c998dff98afd /net/sched/sch_generic.c | |
| parent | e8660ded7f5a9889395d33ce3d5e8c729a462bf5 (diff) | |
| download | lwn-b2d3bcfa26a7a8de41f358a6cae8b848673b3c6e.tar.gz lwn-b2d3bcfa26a7a8de41f358a6cae8b848673b3c6e.zip | |
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.c | 4 |
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); } } |