[NET]: Annotate callers of csum_fold() in net/*

[net-next-2.6.git] / net / core / datagram.c

diff --git a/net/core/datagram.c b/net/core/datagram.c
index b8ce6bf81188943a1ac91f3b80b361d03ce3c955..e5a05a046fef185790dbb136551f1307e537b50e 100644 (file)
--- a/net/core/datagram.c
+++ b/net/core/datagram.c
@@ -413,11 +413,11 @@ fault:
 
 unsigned int __skb_checksum_complete(struct sk_buff *skb)
 {
-       unsigned int sum;
+       __sum16 sum;
 
-       sum = (u16)csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
+       sum = csum_fold(skb_checksum(skb, 0, skb->len, skb->csum));
        if (likely(!sum)) {
-               if (unlikely(skb->ip_summed == CHECKSUM_HW))
+               if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
                        netdev_rx_csum_fault(skb->dev);
                skb->ip_summed = CHECKSUM_UNNECESSARY;
        }
@@ -441,7 +441,7 @@ EXPORT_SYMBOL(__skb_checksum_complete);
 int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
                                     int hlen, struct iovec *iov)
 {
-       unsigned int csum;
+       __wsum csum;
        int chunk = skb->len - hlen;
 
        /* Skip filled elements.
@@ -460,9 +460,9 @@ int skb_copy_and_csum_datagram_iovec(struct sk_buff *skb,
                if (skb_copy_and_csum_datagram(skb, hlen, iov->iov_base,
                                               chunk, &csum))
                        goto fault;
-               if ((unsigned short)csum_fold(csum))
+               if (csum_fold(csum))
                        goto csum_error;
-               if (unlikely(skb->ip_summed == CHECKSUM_HW))
+               if (unlikely(skb->ip_summed == CHECKSUM_COMPLETE))
                        netdev_rx_csum_fault(skb->dev);
                iov->iov_len -= chunk;
                iov->iov_base += chunk;
@@ -500,6 +500,8 @@ unsigned int datagram_poll(struct file *file, struct socket *sock,
        /* exceptional events? */
        if (sk->sk_err || !skb_queue_empty(&sk->sk_error_queue))
                mask |= POLLERR;
+       if (sk->sk_shutdown & RCV_SHUTDOWN)
+               mask |= POLLRDHUP;
        if (sk->sk_shutdown == SHUTDOWN_MASK)
                mask |= POLLHUP;