1 files changed, 29 insertions, 13 deletions

diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index 6a1f23092099..aaee02e9e3f0 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -31,7 +31,6 @@
 #include <linux/vmalloc.h>
 #include <linux/pagemap.h>
 #include <linux/netdevice.h>
-#include <linux/tcp.h>
 #include <linux/ipv6.h>
 #include <net/checksum.h>
 #include <net/ip6_checksum.h>
@@ -2484,10 +2483,24 @@ static inline bool igb_tx_csum_adv(struct igb_adapter *adapter,
                 tu_cmd |= (E1000_TXD_CMD_DEXT | E1000_ADVTXD_DTYP_CTXT);
 
                 if (skb->ip_summed == CHECKSUM_PARTIAL) {
-                        if (skb->protocol == htons(ETH_P_IP))
+                        switch (skb->protocol) {
+                        case __constant_htons(ETH_P_IP):
                                 tu_cmd |= E1000_ADVTXD_TUCMD_IPV4;
-                        if (skb->sk && (skb->sk->sk_protocol == IPPROTO_TCP))
-                                tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
+                                if (ip_hdr(skb)->protocol == IPPROTO_TCP)
+                                        tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
+                                break;
+                        case __constant_htons(ETH_P_IPV6):
+                                /* XXX what about other V6 headers?? */
+                                if (ipv6_hdr(skb)->nexthdr == IPPROTO_TCP)
+                                        tu_cmd |= E1000_ADVTXD_TUCMD_L4T_TCP;
+                                break;
+                        default:
+                                if (unlikely(net_ratelimit()))
+                                        dev_warn(&adapter->pdev->dev,
+                                            "partial checksum but proto=%x!\n",
+                                            skb->protocol);
+                                break;
+                        }
                 }
 
                 context_desc->type_tucmd_mlhl = cpu_to_le32(tu_cmd);
@@ -3241,6 +3254,13 @@ quit_polling:
 
         return 1;
 }
+
+static inline u32 get_head(struct igb_ring *tx_ring)
+{
+        void *end = (struct e1000_tx_desc *)tx_ring->desc + tx_ring->count;
+        return le32_to_cpu(*(volatile __le32 *)end);
+}
+
 /**
  * igb_clean_tx_irq - Reclaim resources after transmit completes
  * @adapter: board private structure
@@ -3262,9 +3282,7 @@ static bool igb_clean_tx_irq(struct igb_adapter *adapter,
         unsigned int total_bytes = 0, total_packets = 0;
 
         rmb();
-        head = *(volatile u32 *)((struct e1000_tx_desc *)tx_ring->desc
-                                 + tx_ring->count);
-        head = le32_to_cpu(head);
+        head = get_head(tx_ring);
         i = tx_ring->next_to_clean;
         while (1) {
                 while (i != head) {
@@ -3299,9 +3317,7 @@ static bool igb_clean_tx_irq(struct igb_adapter *adapter,
                 }
                 oldhead = head;
                 rmb();
-                head = *(volatile u32 *)((struct e1000_tx_desc *)tx_ring->desc
-                                         + tx_ring->count);
-                head = le32_to_cpu(head);
+                head = get_head(tx_ring);
                 if (head == oldhead)
                         goto done_cleaning;
         }  /* while (1) */
@@ -3375,7 +3391,7 @@ done_cleaning:
  * @vlan: descriptor vlan field as written by hardware (no le/be conversion)
  * @skb: pointer to sk_buff to be indicated to stack
  **/
-static void igb_receive_skb(struct igb_adapter *adapter, u8 status, u16 vlan,
+static void igb_receive_skb(struct igb_adapter *adapter, u8 status, __le16 vlan,
                             struct sk_buff *skb)
 {
         if (adapter->vlgrp && (status & E1000_RXD_STAT_VP))
@@ -3439,8 +3455,8 @@ static bool igb_clean_rx_irq_adv(struct igb_adapter *adapter,
                  * that case, it fills the header buffer and spills the rest
                  * into the page.
                  */
-                hlen = le16_to_cpu((rx_desc->wb.lower.lo_dword.hdr_info &
-                  E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT);
+                hlen = (le16_to_cpu(rx_desc->wb.lower.lo_dword.hdr_info) &
+                  E1000_RXDADV_HDRBUFLEN_MASK) >> E1000_RXDADV_HDRBUFLEN_SHIFT;
                 if (hlen > adapter->rx_ps_hdr_size)
                         hlen = adapter->rx_ps_hdr_size;