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

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 2 deletions

diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 25221146debb..2bf54adee8c2 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -557,7 +557,7 @@ static int ipgre_rcv(struct sk_buff *skb)
         struct iphdr *iph;
         u8     *h;
         __be16    flags;
-        u16    csum = 0;
+        __sum16   csum = 0;
         __be32 key = 0;
         u32    seqno = 0;
         struct ip_tunnel *tunnel;
@@ -580,7 +580,7 @@ static int ipgre_rcv(struct sk_buff *skb)
                 if (flags&GRE_CSUM) {
                         switch (skb->ip_summed) {
                         case CHECKSUM_COMPLETE:
-                                csum = (u16)csum_fold(skb->csum);
+                                csum = csum_fold(skb->csum);
                                 if (!csum)
                                         break;
                                 /* fall through */