ipv4: Correct/silence an endian warning in __ip_do_redirect

[ Upstream commit c0e2926266af3b5acf28df0a8fc6e4d90effe0bb ]

net/ipv4/route.c:783:46: warning: incorrect type in argument 2 (different base types)
net/ipv4/route.c:783:46:    expected unsigned int [usertype] key
net/ipv4/route.c:783:46:    got restricted __be32 [usertype] new_gw

Fixes: 969447f226b4 ("ipv4: use new_gw for redirect neigh lookup")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Kunwu Chan <chentao@kylinos.cn>
Link: https://lore.kernel.org/r/20231119141759.420477-1-chentao@kylinos.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 4a6f4ef369d05b0f3651cfd8d838aa4610d16b0f..239b54c03a657b4d3e181da7ca4197c9b77975be 100644 (file)
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -806,7 +806,7 @@ static void __ip_do_redirect(struct rtable *rt, struct sk_buff *skb, struct flow
                        goto reject_redirect;
        }
 
-       n = __ipv4_neigh_lookup(rt->dst.dev, new_gw);
+       n = __ipv4_neigh_lookup(rt->dst.dev, (__force u32)new_gw);
        if (!n)
                n = neigh_create(&arp_tbl, &new_gw, rt->dst.dev);
        if (!IS_ERR(n)) {