commit 
ba418fa357a7b3c ("soreuseport: UDP/IPv4 implementation")
added following sparse errors :
net/ipv4/udp.c:433:60: warning: cast from restricted __be16
net/ipv4/udp.c:433:60: warning: incorrect type in argument 1 (different base types)
net/ipv4/udp.c:433:60:    expected unsigned short [unsigned] [usertype] val
net/ipv4/udp.c:433:60:    got restricted __be16 [usertype] sport
net/ipv4/udp.c:433:60: warning: cast from restricted __be16
net/ipv4/udp.c:433:60: warning: cast from restricted __be16
net/ipv4/udp.c:514:60: warning: cast from restricted __be16
net/ipv4/udp.c:514:60: warning: incorrect type in argument 1 (different base types)
net/ipv4/udp.c:514:60:    expected unsigned short [unsigned] [usertype] val
net/ipv4/udp.c:514:60:    got restricted __be16 [usertype] sport
net/ipv4/udp.c:514:60: warning: cast from restricted __be16
net/ipv4/udp.c:514:60: warning: cast from restricted __be16
Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
                        reuseport = sk->sk_reuseport;
                        if (reuseport) {
                                hash = inet_ehashfn(net, daddr, hnum,
-                                                   saddr, htons(sport));
+                                                   saddr, sport);
                                matches = 1;
                        }
                } else if (score == badness && reuseport) {
                        reuseport = sk->sk_reuseport;
                        if (reuseport) {
                                hash = inet_ehashfn(net, daddr, hnum,
-                                                   saddr, htons(sport));
+                                                   saddr, sport);
                                matches = 1;
                        }
                } else if (score == badness && reuseport) {