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| author | Andreas Born <futur.andy@googlemail.com> | 2017-08-12 00:36:55 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-08-14 05:01:38 +0200 |
| commit | 11e9d7829dd08dbafb24517fe922f11c3a8a9dc2 (patch) | |
| tree | b389255ff179d7d2d325e87c6bf36d2c0ac9c108 | |
| parent | udp: harden copy_linear_skb() (diff) | |
| download | linux-11e9d7829dd08dbafb24517fe922f11c3a8a9dc2.tar.xz linux-11e9d7829dd08dbafb24517fe922f11c3a8a9dc2.zip | |
bonding: ratelimit failed speed/duplex update warning
bond_miimon_commit() handles the UP transition for each slave of a bond
in the case of MII. It is triggered 10 times per second for the default
MII Polling interval of 100ms. For device drivers that do not implement
__ethtool_get_link_ksettings() the call to bond_update_speed_duplex()
fails persistently while the MII status could remain UP. That is, in
this and other cases where the speed/duplex update keeps failing over a
longer period of time while the MII state is UP, a warning is printed
every MII polling interval.
To address these excessive warnings net_ratelimit() should be used.
Printing a warning once would not be sufficient since the call to
bond_update_speed_duplex() could recover to succeed and fail again
later. In that case there would be no new indication what went wrong.
Fixes: b5bf0f5b16b9c (bonding: correctly update link status during mii-commit phase)
Signed-off-by: Andreas Born <futur.andy@googlemail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | drivers/net/bonding/bond_main.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c index 85bb272d2a34..fc63992ab0e0 100644 --- a/drivers/net/bonding/bond_main.c +++ b/drivers/net/bonding/bond_main.c @@ -2144,9 +2144,10 @@ static void bond_miimon_commit(struct bonding *bond) if (bond_update_speed_duplex(slave) && bond_needs_speed_duplex(bond)) { slave->link = BOND_LINK_DOWN; - netdev_warn(bond->dev, - "failed to get link speed/duplex for %s\n", - slave->dev->name); + if (net_ratelimit()) + netdev_warn(bond->dev, + "failed to get link speed/duplex for %s\n", + slave->dev->name); continue; } bond_set_slave_link_state(slave, BOND_LINK_UP, |