1 files changed, 19 insertions, 2 deletions

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 5a886e6efbbe..f6f39e814291 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -496,6 +496,24 @@ void tcp_v4_send_check(struct sock *sk, int len, struct sk_buff *skb)
         }
 }
 
+int tcp_v4_gso_send_check(struct sk_buff *skb)
+{
+        struct iphdr *iph;
+        struct tcphdr *th;
+
+        if (!pskb_may_pull(skb, sizeof(*th)))
+                return -EINVAL;
+
+        iph = skb->nh.iph;
+        th = skb->h.th;
+
+        th->check = 0;
+        th->check = ~tcp_v4_check(th, skb->len, iph->saddr, iph->daddr, 0);
+        skb->csum = offsetof(struct tcphdr, check);
+        skb->ip_summed = CHECKSUM_HW;
+        return 0;
+}
+
 /*
  *      This routine will send an RST to the other tcp.
  *
@@ -1622,10 +1640,9 @@ static int tcp_seq_open(struct inode *inode, struct file *file)
         if (unlikely(afinfo == NULL))
                 return -EINVAL;
 
-        s = kmalloc(sizeof(*s), GFP_KERNEL);
+        s = kzalloc(sizeof(*s), GFP_KERNEL);
         if (!s)
                 return -ENOMEM;
-        memset(s, 0, sizeof(*s));
         s->family               = afinfo->family;
         s->seq_ops.start        = tcp_seq_start;
         s->seq_ops.next         = tcp_seq_next;