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48 lines
2.0 KiB
Diff
48 lines
2.0 KiB
Diff
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From 11e9d7829dd08dbafb24517fe922f11c3a8a9dc2 Mon Sep 17 00:00:00 2001
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From: Andreas Born <futur.andy@googlemail.com>
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Date: Sat, 12 Aug 2017 00:36:55 +0200
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Subject: [PATCH] bonding: ratelimit failed speed/duplex update warning
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bond_miimon_commit() handles the UP transition for each slave of a bond
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in the case of MII. It is triggered 10 times per second for the default
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MII Polling interval of 100ms. For device drivers that do not implement
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__ethtool_get_link_ksettings() the call to bond_update_speed_duplex()
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fails persistently while the MII status could remain UP. That is, in
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this and other cases where the speed/duplex update keeps failing over a
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longer period of time while the MII state is UP, a warning is printed
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every MII polling interval.
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To address these excessive warnings net_ratelimit() should be used.
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Printing a warning once would not be sufficient since the call to
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bond_update_speed_duplex() could recover to succeed and fail again
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later. In that case there would be no new indication what went wrong.
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Fixes: b5bf0f5b16b9c (bonding: correctly update link status during mii-commit phase)
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Signed-off-by: Andreas Born <futur.andy@googlemail.com>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/bonding/bond_main.c | 7 ++++---
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1 file changed, 4 insertions(+), 3 deletions(-)
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diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
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index 85bb272d2a34..fc63992ab0e0 100644
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--- a/drivers/net/bonding/bond_main.c
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+++ b/drivers/net/bonding/bond_main.c
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@@ -2144,9 +2144,10 @@ static void bond_miimon_commit(struct bonding *bond)
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if (bond_update_speed_duplex(slave) &&
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bond_needs_speed_duplex(bond)) {
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slave->link = BOND_LINK_DOWN;
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- netdev_warn(bond->dev,
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- "failed to get link speed/duplex for %s\n",
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- slave->dev->name);
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+ if (net_ratelimit())
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+ netdev_warn(bond->dev,
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+ "failed to get link speed/duplex for %s\n",
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+ slave->dev->name);
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continue;
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}
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bond_set_slave_link_state(slave, BOND_LINK_UP,
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--
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2.14.1
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