net: Fix various endianness glitches

Sparse can help us find endianness bugs, but we need to make some
cleanups to be able to more easily spot real bugs.

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 9082485..92bf903 100644
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -91,9 +91,9 @@
 	if (ipv6_addr_any(addr6))
 		hash = jhash_1word(0, mix);
 	else if (ipv6_addr_v4mapped(addr6))
-		hash = jhash_1word(addr6->s6_addr32[3], mix);
+		hash = jhash_1word((__force u32)addr6->s6_addr32[3], mix);
 	else
-		hash = jhash2(addr6->s6_addr32, 4, mix);
+		hash = jhash2((__force u32 *)addr6->s6_addr32, 4, mix);
 
 	return hash ^ port;
 }