linux-kernel - [PATCH 5.16 185/200] ipv4: remove sparse error in ip_neigh

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Message-Id: <20220131105239.768280658@linuxfoundation.org>
Date:   Mon, 31 Jan 2022 11:57:28 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
        David Ahern <dsahern@...nel.org>,
        Jakub Kicinski <kuba@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.16 185/200] ipv4: remove sparse error in ip_neigh_gw4()

From: Eric Dumazet <edumazet@...gle.com>

[ 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@...gle.com>
Reviewed-by: David Ahern <dsahern@...nel.org>
Link: https://lore.kernel.org/r/20220127013404.1279313-1-eric.dumazet@gmail.com
Signed-off-by: Jakub Kicinski <kuba@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 include/net/route.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/route.h b/include/net/route.h
index 2e6c0e153e3a5..2551f3f03b37e 100644
--- 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);
 
-- 
2.34.1