4 files changed, 27 insertions, 12 deletions

diff --git a/net/core/datagram.c b/net/core/datagram.c
index 1c6cf3a1a4f6..4ade3011bb3c 100644
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -224,6 +224,15 @@ void skb_free_datagram(struct sock *sk, struct sk_buff *skb)
         consume_skb(skb);
         sk_mem_reclaim_partial(sk);
 }
+EXPORT_SYMBOL(skb_free_datagram);
+
+void skb_free_datagram_locked(struct sock *sk, struct sk_buff *skb)
+{
+        lock_sock(sk);
+        skb_free_datagram(sk, skb);
+        release_sock(sk);
+}
+EXPORT_SYMBOL(skb_free_datagram_locked);
 
 /**
  *      skb_kill_datagram - Free a datagram skbuff forcibly
@@ -752,5 +761,4 @@ unsigned int datagram_poll(struct file *file, struct socket *sock,
 EXPORT_SYMBOL(datagram_poll);
 EXPORT_SYMBOL(skb_copy_and_csum_datagram_iovec);
 EXPORT_SYMBOL(skb_copy_datagram_iovec);
-EXPORT_SYMBOL(skb_free_datagram);
 EXPORT_SYMBOL(skb_recv_datagram);
diff --git a/net/core/dev.c b/net/core/dev.c
index b8f74cfb1bfd..fe10551d3671 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -942,14 +942,15 @@ rollback:
         ret = notifier_to_errno(ret);
 
         if (ret) {
-                if (err) {
-                        printk(KERN_ERR
-                               "%s: name change rollback failed: %d.\n",
-                               dev->name, ret);
-                } else {
+                /* err >= 0 after dev_alloc_name() or stores the first errno */
+                if (err >= 0) {
                         err = ret;
                         memcpy(dev->name, oldname, IFNAMSIZ);
                         goto rollback;
+                } else {
+                        printk(KERN_ERR
+                               "%s: name change rollback failed: %d.\n",
+                               dev->name, ret);
                 }
         }
 
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 86acdba0a97d..6eb8d47cbf3a 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -335,6 +335,7 @@ struct pktgen_dev {
         __u32 cur_src_mac_offset;
         __be32 cur_saddr;
         __be32 cur_daddr;
+        __u16 ip_id;
         __u16 cur_udp_dst;
         __u16 cur_udp_src;
         __u16 cur_queue_map;
@@ -2630,6 +2631,8 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
         iph->protocol = IPPROTO_UDP;    /* UDP */
         iph->saddr = pkt_dev->cur_saddr;
         iph->daddr = pkt_dev->cur_daddr;
+        iph->id = htons(pkt_dev->ip_id);
+        pkt_dev->ip_id++;
         iph->frag_off = 0;
         iplen = 20 + 8 + datalen;
         iph->tot_len = htons(iplen);
@@ -2641,24 +2644,26 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
         skb->dev = odev;
         skb->pkt_type = PACKET_HOST;
 
-        if (pkt_dev->nfrags <= 0)
+        if (pkt_dev->nfrags <= 0) {
                 pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
-        else {
+                memset(pgh + 1, 0, datalen - sizeof(struct pktgen_hdr));
+        } else {
                 int frags = pkt_dev->nfrags;
-                int i;
+                int i, len;
 
                 pgh = (struct pktgen_hdr *)(((char *)(udph)) + 8);
 
                 if (frags > MAX_SKB_FRAGS)
                         frags = MAX_SKB_FRAGS;
                 if (datalen > frags * PAGE_SIZE) {
-                        skb_put(skb, datalen - frags * PAGE_SIZE);
+                        len = datalen - frags * PAGE_SIZE;
+                        memset(skb_put(skb, len), 0, len);
                         datalen = frags * PAGE_SIZE;
                 }
 
                 i = 0;
                 while (datalen > 0) {
-                        struct page *page = alloc_pages(GFP_KERNEL, 0);
+                        struct page *page = alloc_pages(GFP_KERNEL | __GFP_ZERO, 0);
                         skb_shinfo(skb)->frags[i].page = page;
                         skb_shinfo(skb)->frags[i].page_offset = 0;
                         skb_shinfo(skb)->frags[i].size =
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 80a96166df39..ec85681a7dd8 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -2701,7 +2701,8 @@ int skb_gro_receive(struct sk_buff **head, struct sk_buff *skb)
 
                 NAPI_GRO_CB(skb)->free = 1;
                 goto done;
-        }
+        } else if (skb_gro_len(p) != pinfo->gso_size)
+                return -E2BIG;
 
         headroom = skb_headroom(p);
         nskb = netdev_alloc_skb(p->dev, headroom + skb_gro_offset(p));