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ipv4: fix endianness issue in inet_rtm_getroute_build_skb()

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[ Upstream commit 92548b0ee220e000d81c27ac9a80e0ede895a881 ]

The UDP length field should be in network order.
This removes the following sparse error:

net/ipv4/route.c:3173:27: warning: incorrect type in assignment (different base types)
net/ipv4/route.c:3173:27:    expected restricted __be16 [usertype] len
net/ipv4/route.c:3173:27:    got unsigned long

Fixes: 404eb77ea7 ("ipv4: support sport, dport and ip_proto in RTM_GETROUTE")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Cc: Roopa Prabhu <roopa@nvidia.com>
Cc: David Ahern <dsahern@kernel.org>
Reviewed-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Eric Dumazet 2021-08-30 19:02:10 -07:00 committed by Greg Kroah-Hartman
parent dc4ff31506
commit c4f1ad3930
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/route.c
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@ -3078,7 +3078,7 @@ static struct sk_buff *inet_rtm_getroute_build_skb(__be32 src, __be32 dst,
udph = skb_put_zero(skb, sizeof(struct udphdr));
udph->source = sport;
udph->dest = dport;
udph->len = sizeof(struct udphdr);
udph->len = htons(sizeof(struct udphdr));
udph->check = 0;
break;
}