I/OAT: warning fix

net/ipv4/tcp.c: In function 'tcp_recvmsg':
net/ipv4/tcp.c:1111: warning: unused variable 'available'

Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Chris Leech <christopher.leech@intel.com>

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 0eb7cf1..987b944 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1116,7 +1116,6 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
        long timeo;
        struct task_struct *user_recv = NULL;
        int copied_early = 0;
-       int available = 0;
        struct sk_buff *skb;
 
        lock_sock(sk);
@@ -1145,15 +1144,22 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
        tp->ucopy.dma_chan = NULL;
        preempt_disable();
        skb = skb_peek_tail(&sk->sk_receive_queue);
-       if (skb)
-               available = TCP_SKB_CB(skb)->seq + skb->len - (*seq);
-       if ((available < target) &&
-           (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) &&
-           !sysctl_tcp_low_latency && __get_cpu_var(softnet_data).net_dma) {
-               preempt_enable_no_resched();
-               tp->ucopy.pinned_list = dma_pin_iovec_pages(msg->msg_iov, len);
-       } else
-               preempt_enable_no_resched();
+       {
+               int available = 0;
+
+               if (skb)
+                       available = TCP_SKB_CB(skb)->seq + skb->len - (*seq);
+               if ((available < target) &&
+                   (len > sysctl_tcp_dma_copybreak) && !(flags & MSG_PEEK) &&
+                   !sysctl_tcp_low_latency &&
+                   __get_cpu_var(softnet_data).net_dma) {
+                       preempt_enable_no_resched();
+                       tp->ucopy.pinned_list =
+                                       dma_pin_iovec_pages(msg->msg_iov, len);
+               } else {
+                       preempt_enable_no_resched();
+               }
+       }
 #endif
 
        do {