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| author | Ben Greear <greearb@candelatech.com> | 2013-04-19 10:45:52 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-04-19 17:57:49 -0400 |
| commit | c846ad9b880ece01bb4d8d07ba917734edf0324f (patch) | |
| tree | 93c3e6e09b134a53d0c9f696d1a7ca3a5f438e3a /net/core/dev.c | |
| parent | b261c20fe089859cc43642e7006921498327fe3d (diff) | |
| download | lwn-c846ad9b880ece01bb4d8d07ba917734edf0324f.tar.gz lwn-c846ad9b880ece01bb4d8d07ba917734edf0324f.zip | |
net: rate-limit warn-bad-offload splats.
If one does do something unfortunate and allow a
bad offload bug into the kernel, this the
skb_warn_bad_offload can effectively live-lock the
system, filling the logs with the same error over
and over.
Add rate limitation to this so that box remains otherwise
functional in this case.
Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core/dev.c')
| -rw-r--r-- | net/core/dev.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index e7d68ed8aafe..b24ab0e98eb4 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2148,6 +2148,9 @@ static void skb_warn_bad_offload(const struct sk_buff *skb) struct net_device *dev = skb->dev; const char *driver = ""; + if (!net_ratelimit()) + return; + if (dev && dev->dev.parent) driver = dev_driver_string(dev->dev.parent); |