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macvlan: don't broadcast PAUSE frames to macvlan devices

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PAUSE frames are only relevant for the real device, broadcasting them
to all macvlan devices can cause a significant load increase.

Reported-by: Ben Greear <greearb@candelatech.com>
Tested-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2008-11-26 15:30:48 -08:00 committed by David S. Miller
parent 7e5ab54296
commit efbbced361
1 changed files with 3 additions and 0 deletions
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3
drivers/net/macvlan.c
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@ -70,6 +70,9 @@ static void macvlan_broadcast(struct sk_buff *skb,
struct sk_buff *nskb;
unsigned int i;
if (skb->protocol == htons(ETH_P_PAUSE))
return;
for (i = 0; i < MACVLAN_HASH_SIZE; i++) {
hlist_for_each_entry_rcu(vlan, n, &port->vlan_hash[i], hlist) {
dev = vlan->dev;