ipv6: fix sparse warnings in rt6_info_hash_nhsfn()

Adding by commit 51ebd3181572 which adds the support of ECMP for IPv6.

Spotted-by: Fengguang Wu <fengguang.wu@intel.com>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 13 insertions, 13 deletions

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 126da562d3eb..c42650cf8d4d 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -397,32 +397,32 @@ static int rt6_info_hash_nhsfn(unsigned int candidate_count,
 {
         unsigned int val = fl6->flowi6_proto;
 
-        val ^= fl6->daddr.s6_addr32[0];
-        val ^= fl6->daddr.s6_addr32[1];
-        val ^= fl6->daddr.s6_addr32[2];
-        val ^= fl6->daddr.s6_addr32[3];
+        val ^= (__force u32)fl6->daddr.s6_addr32[0];
+        val ^= (__force u32)fl6->daddr.s6_addr32[1];
+        val ^= (__force u32)fl6->daddr.s6_addr32[2];
+        val ^= (__force u32)fl6->daddr.s6_addr32[3];
 
-        val ^= fl6->saddr.s6_addr32[0];
-        val ^= fl6->saddr.s6_addr32[1];
-        val ^= fl6->saddr.s6_addr32[2];
-        val ^= fl6->saddr.s6_addr32[3];
+        val ^= (__force u32)fl6->saddr.s6_addr32[0];
+        val ^= (__force u32)fl6->saddr.s6_addr32[1];
+        val ^= (__force u32)fl6->saddr.s6_addr32[2];
+        val ^= (__force u32)fl6->saddr.s6_addr32[3];
 
         /* Work only if this not encapsulated */
         switch (fl6->flowi6_proto) {
         case IPPROTO_UDP:
         case IPPROTO_TCP:
         case IPPROTO_SCTP:
-                val ^= fl6->fl6_sport;
-                val ^= fl6->fl6_dport;
+                val ^= (__force u16)fl6->fl6_sport;
+                val ^= (__force u16)fl6->fl6_dport;
                 break;
 
         case IPPROTO_ICMPV6:
-                val ^= fl6->fl6_icmp_type;
-                val ^= fl6->fl6_icmp_code;
+                val ^= (__force u16)fl6->fl6_icmp_type;
+                val ^= (__force u16)fl6->fl6_icmp_code;
                 break;
         }
         /* RFC6438 recommands to use flowlabel */
-        val ^= fl6->flowlabel;
+        val ^= (__force u32)fl6->flowlabel;
 
         /* Perhaps, we need to tune, this function? */
         val = val ^ (val >> 7) ^ (val >> 12);