[PATCH 2/2] ixgbe: use compiler constants in Rx path

[Shannon Nelson]

Rather than swapping runtime bytes to compare to constants, let the
compiler swap the constants and save a couple of runtuime cycles.

Signed-off-by: Shannon Nelson <shannon.nel...@oracle.com>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c 
b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
index c5ef09f..587fd8f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ipsec.c
@@ -806,9 +806,9 @@ void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
                    struct sk_buff *skb)
 {
        struct ixgbe_adapter *adapter = netdev_priv(rx_ring->netdev);
-       u16 pkt_info = le16_to_cpu(rx_desc->wb.lower.lo_dword.hs_rss.pkt_info);
-       u16 ipsec_pkt_types = IXGBE_RXDADV_PKTTYPE_IPSEC_AH |
-                               IXGBE_RXDADV_PKTTYPE_IPSEC_ESP;
+       __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info;
+       __le16 ipsec_pkt_types = cpu_to_le16(IXGBE_RXDADV_PKTTYPE_IPSEC_AH |
+                                            IXGBE_RXDADV_PKTTYPE_IPSEC_ESP);
        struct ixgbe_ipsec *ipsec = adapter->ipsec;
        struct xfrm_offload *xo = NULL;
        struct xfrm_state *xs = NULL;
@@ -825,11 +825,11 @@ void ixgbe_ipsec_rx(struct ixgbe_ring *rx_ring,
        iph = (struct iphdr *)(skb->data + ETH_HLEN);
        c_hdr = (u8 *)iph + iph->ihl * 4;
        switch (pkt_info & ipsec_pkt_types) {
-       case IXGBE_RXDADV_PKTTYPE_IPSEC_AH:
+       case cpu_to_le16(IXGBE_RXDADV_PKTTYPE_IPSEC_AH):
                spi = ((struct ip_auth_hdr *)c_hdr)->spi;
                proto = IPPROTO_AH;
                break;
-       case IXGBE_RXDADV_PKTTYPE_IPSEC_ESP:
+       case cpu_to_le16(IXGBE_RXDADV_PKTTYPE_IPSEC_ESP):
                spi = ((struct ip_esp_hdr *)c_hdr)->spi;
                proto = IPPROTO_ESP;
                break;
-- 
2.7.4