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pch_gbe: run the ptp bpf just once per packet 

This patch fixes code which needlessly ran the BPF twice per
packet. Instead, we just run the classifier once and test
whether the packet is any kind of PTP event message.

Signed-off-by: Richard Cochran <richardcochran@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Richard Cochran 2012-04-20 18:50:35 +00:00 committed by David S. Miller
parent 358dfb6d77
commit 32127a0a0a
1 changed files with 1 additions and 3 deletions
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4
drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
View File

@ -134,10 +134,8 @@ static int pch_ptp_match(struct sk_buff *skb, u16 uid_hi, u32 uid_lo, u16 seqid)
u16 *hi, *id;
u32 lo;
if ((sk_run_filter(skb, ptp_filter) != PTP_CLASS_V2_IPV4) &&
(sk_run_filter(skb, ptp_filter) != PTP_CLASS_V1_IPV4)) {
if (sk_run_filter(skb, ptp_filter) == PTP_CLASS_NONE)
return 0;
}
offset = ETH_HLEN + IPV4_HLEN(data) + UDP_HLEN;