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

[net-next-2.6.git] / net / ipv4 / tcp.c

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index dadef867a3bb3d6ec222a66db2d79fbee355875e..168f9de906bc06c94f8bd44308f5f2444f7eafaf 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2162,7 +2162,7 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
        struct tcphdr *th;
        unsigned thlen;
        unsigned int seq;
-       unsigned int delta;
+       __be32 delta;
        unsigned int oldlen;
        unsigned int len;
 
@@ -2215,7 +2215,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
        do {
                th->fin = th->psh = 0;
 
-               th->check = ~csum_fold(th->check + delta);
+               th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
+                                      (__force u32)delta));
                if (skb->ip_summed != CHECKSUM_PARTIAL)
                        th->check = csum_fold(csum_partial(skb->h.raw, thlen,
                                                           skb->csum));
@@ -2229,7 +2230,8 @@ struct sk_buff *tcp_tso_segment(struct sk_buff *skb, int features)
        } while (skb->next);
 
        delta = htonl(oldlen + (skb->tail - skb->h.raw) + skb->data_len);
-       th->check = ~csum_fold(th->check + delta);
+       th->check = ~csum_fold((__force __wsum)((__force u32)th->check +
+                               (__force u32)delta));
        if (skb->ip_summed != CHECKSUM_PARTIAL)
                th->check = csum_fold(csum_partial(skb->h.raw, thlen,
                                                   skb->csum));