[NET]: "signed long" -> "long"

Signed-off-by: Kris Katterjohn <kjak@users.sourceforge.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/dccp/ackvec.c b/net/dccp/ackvec.c
index ce9cb77..2c77daf 100644
--- a/net/dccp/ackvec.c
+++ b/net/dccp/ackvec.c
@@ -144,7 +144,7 @@
 						 const unsigned char state)
 {
 	unsigned int gap;
-	signed long new_head;
+	long new_head;
 
 	if (av->dccpav_vec_len + packets > av->dccpav_buf_len)
 		return -ENOBUFS;