Merge commit 'v2.6.26-rc9' into cpus4096

1 files changed, 33 insertions, 11 deletions

diff --git a/net/core/dev.c b/net/core/dev.c
index ee61b987f4d9..94d9d6f77e04 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -119,6 +119,7 @@
 #include <linux/err.h>
 #include <linux/ctype.h>
 #include <linux/if_arp.h>
+#include <linux/if_vlan.h>
 
 #include "net-sysfs.h"
 
@@ -453,7 +454,7 @@ static int netdev_boot_setup_add(char *name, struct ifmap *map)
         for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
                 if (s[i].name[0] == '\0' || s[i].name[0] == ' ') {
                         memset(s[i].name, 0, sizeof(s[i].name));
-                        strcpy(s[i].name, name);
+                        strlcpy(s[i].name, name, IFNAMSIZ);
                         memcpy(&s[i].map, map, sizeof(s[i].map));
                         break;
                 }
@@ -478,7 +479,7 @@ int netdev_boot_setup_check(struct net_device *dev)
 
         for (i = 0; i < NETDEV_BOOT_SETUP_MAX; i++) {
                 if (s[i].name[0] != '\0' && s[i].name[0] != ' ' &&
-                    !strncmp(dev->name, s[i].name, strlen(s[i].name))) {
+                    !strcmp(dev->name, s[i].name)) {
                         dev->irq        = s[i].map.irq;
                         dev->base_addr  = s[i].map.base_addr;
                         dev->mem_start  = s[i].map.mem_start;
@@ -1362,6 +1363,29 @@ void netif_device_attach(struct net_device *dev)
 }
 EXPORT_SYMBOL(netif_device_attach);
 
+static bool can_checksum_protocol(unsigned long features, __be16 protocol)
+{
+        return ((features & NETIF_F_GEN_CSUM) ||
+                ((features & NETIF_F_IP_CSUM) &&
+                 protocol == htons(ETH_P_IP)) ||
+                ((features & NETIF_F_IPV6_CSUM) &&
+                 protocol == htons(ETH_P_IPV6)));
+}
+
+static bool dev_can_checksum(struct net_device *dev, struct sk_buff *skb)
+{
+        if (can_checksum_protocol(dev->features, skb->protocol))
+                return true;
+
+        if (skb->protocol == htons(ETH_P_8021Q)) {
+                struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
+                if (can_checksum_protocol(dev->features & dev->vlan_features,
+                                          veh->h_vlan_encapsulated_proto))
+                        return true;
+        }
+
+        return false;
+}
 
 /*
  * Invalidate hardware checksum when packet is to be mangled, and
@@ -1640,14 +1664,8 @@ int dev_queue_xmit(struct sk_buff *skb)
         if (skb->ip_summed == CHECKSUM_PARTIAL) {
                 skb_set_transport_header(skb, skb->csum_start -
                                               skb_headroom(skb));
-
-                if (!(dev->features & NETIF_F_GEN_CSUM) &&
-                    !((dev->features & NETIF_F_IP_CSUM) &&
-                      skb->protocol == htons(ETH_P_IP)) &&
-                    !((dev->features & NETIF_F_IPV6_CSUM) &&
-                      skb->protocol == htons(ETH_P_IPV6)))
-                        if (skb_checksum_help(skb))
-                                goto out_kfree_skb;
+                if (!dev_can_checksum(dev, skb) && skb_checksum_help(skb))
+                        goto out_kfree_skb;
         }
 
 gso:
@@ -2059,6 +2077,10 @@ int netif_receive_skb(struct sk_buff *skb)
 
         rcu_read_lock();
 
+        /* Don't receive packets in an exiting network namespace */
+        if (!net_alive(dev_net(skb->dev)))
+                goto out;
+
 #ifdef CONFIG_NET_CLS_ACT
         if (skb->tc_verd & TC_NCLS) {
                 skb->tc_verd = CLR_TC_NCLS(skb->tc_verd);
@@ -2951,7 +2973,7 @@ EXPORT_SYMBOL(dev_unicast_delete);
 /**
  *      dev_unicast_add         - add a secondary unicast address
  *      @dev: device
- *      @addr: address to delete
+ *      @addr: address to add
  *      @alen: length of @addr
  *
  *      Add a secondary unicast address to the device or increase