[SOCK]: Introduce sk_receive_skb

[powerpc.git] / net / core / dev.c

diff --git a/net/core/dev.c b/net/core/dev.c
index c01511e..a5efc9a 100644 (file)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -574,6 +574,8 @@ struct net_device *dev_getbyhwaddr(unsigned short type, char *ha)
        return dev;
 }
 
+EXPORT_SYMBOL(dev_getbyhwaddr);
+
 struct net_device *dev_getfirstbyhwtype(unsigned short type)
 {
        struct net_device *dev;
@@ -1106,6 +1108,19 @@ out:
        return ret;
 }
 
+/* Take action when hardware reception checksum errors are detected. */
+#ifdef CONFIG_BUG
+void netdev_rx_csum_fault(struct net_device *dev)
+{
+       if (net_ratelimit()) {
+               printk(KERN_ERR "%s: hw csum failure.\n", 
+                       dev ? dev->name : "<unknown>");
+               dump_stack();
+       }
+}
+EXPORT_SYMBOL(netdev_rx_csum_fault);
+#endif
+
 #ifdef CONFIG_HIGHMEM
 /* Actually, we should eliminate this check as soon as we know, that:
  * 1. IOMMU is present and allows to map all the memory.
@@ -1130,7 +1145,7 @@ static inline int illegal_highdma(struct net_device *dev, struct sk_buff *skb)
 #endif
 
 /* Keep head the same: replace data */
-int __skb_linearize(struct sk_buff *skb, unsigned int __nocast gfp_mask)
+int __skb_linearize(struct sk_buff *skb, gfp_t gfp_mask)
 {
        unsigned int size;
        u8 *data;
@@ -1257,6 +1272,8 @@ int dev_queue_xmit(struct sk_buff *skb)
                if (skb_checksum_help(skb, 0))
                        goto out_kfree_skb;
 
+       spin_lock_prefetch(&dev->queue_lock);
+
        /* Disable soft irqs for various locks below. Also 
         * stops preemption for RCU. 
         */
@@ -2713,6 +2730,20 @@ int register_netdevice(struct net_device *dev)
                       dev->name);
                dev->features &= ~NETIF_F_TSO;
        }
+       if (dev->features & NETIF_F_UFO) {
+               if (!(dev->features & NETIF_F_HW_CSUM)) {
+                       printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
+                                       "NETIF_F_HW_CSUM feature.\n",
+                                                       dev->name);
+                       dev->features &= ~NETIF_F_UFO;
+               }
+               if (!(dev->features & NETIF_F_SG)) {
+                       printk(KERN_ERR "%s: Dropping NETIF_F_UFO since no "
+                                       "NETIF_F_SG feature.\n",
+                                       dev->name);
+                       dev->features &= ~NETIF_F_UFO;
+               }
+       }
 
        /*
         *      nil rebuild_header routine,