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net: rate-limit warn-bad-offload splats.

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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>
This commit is contained in:
Ben Greear 2013-04-19 10:45:52 +00:00 committed by David S. Miller
parent b261c20fe0
commit c846ad9b88
1 changed files with 3 additions and 0 deletions
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3
net/core/dev.c
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@ -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);