ipv4: remove sparse error in ip_neigh_gw4()

BugLink: https://bugs.launchpad.net/bugs/1959879
[ Upstream commit 3c42b2019863b327caa233072c50739d4144dd16 ]

./include/net/route.h:373:48: warning: incorrect type in argument 2 (different base types)
./include/net/route.h:373:48:    expected unsigned int [usertype] key
./include/net/route.h:373:48:    got restricted __be32 [usertype] daddr

Fixes: 5c9f7c1dfc2e ("ipv4: Add helpers for neigh lookup for nexthop")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20220127013404.1279313-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Paolo Pisati <paolo.pisati@canonical.com>

diff --git a/include/net/route.h b/include/net/route.h
index 2e6c0e153e3a58b6b28d3af5c166d0aaf5381d53..2551f3f03b37eef067b12a7e6277f7f1df490537 100644 (file)
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -369,7 +369,7 @@ static inline struct neighbour *ip_neigh_gw4(struct net_device *dev,
 {
        struct neighbour *neigh;
 
-       neigh = __ipv4_neigh_lookup_noref(dev, daddr);
+       neigh = __ipv4_neigh_lookup_noref(dev, (__force u32)daddr);
        if (unlikely(!neigh))
                neigh = __neigh_create(&arp_tbl, &daddr, dev, false);