ipv6: Use correct data types for ICMPv6 type and code

Change all the code that deals directly with ICMPv6 type and code
values to use u8 instead of a signed int as that's the actual data
type.

Signed-off-by: Brian Haley <brian.haley@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h
index 10d701e..b6a8518 100644
--- a/include/linux/icmpv6.h
+++ b/include/linux/icmpv6.h
@@ -175,16 +175,16 @@
 
 
 extern void				icmpv6_send(struct sk_buff *skb,
-						    int type, int code,
+						    u8 type, u8 code,
 						    __u32 info, 
 						    struct net_device *dev);
 
 extern int				icmpv6_init(void);
-extern int				icmpv6_err_convert(int type, int code,
+extern int				icmpv6_err_convert(u8 type, u8 code,
 							   int *err);
 extern void				icmpv6_cleanup(void);
 extern void				icmpv6_param_prob(struct sk_buff *skb,
-							  int code, int pos);
+							  u8 code, int pos);
 
 struct flowi;
 struct in6_addr;