Commit 32127a0a authored Apr 20, 2012 by Richard Cochran Committed by David S. Miller Apr 21, 2012

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>

parent 358dfb6d

drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c

+1 −3

Original line number	Diff line number	Diff line
		@@ -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;