[net-next,8/9] pch_gbe: run the ptp bpf just once per packet

Submitted by Richard Cochran on April 21, 2012, 4:50 a.m.

Details

Message ID 2b417e6ea28228085740e31c150b90266313fe90.1334983471.git.richardcochran@gmail.com
State Accepted
Delegated to: David Miller
Headers show

Commit Message

Richard Cochran April 21, 2012, 4:50 a.m.
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>
---
 .../net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c   |    4 +---
 1 files changed, 1 insertions(+), 3 deletions(-)

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diff --git a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
index 53ac2fb..e9b785e 100644
--- a/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
+++ b/drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe_main.c
@@ -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;