[PATCH net-next] secure_seq: fix sparse errors

[Eric Dumazet]

From: Eric Dumazet <eduma...@google.com>

Fixes following warnings :

net/core/secure_seq.c:125:28: warning: incorrect type in argument 1
(different base types)
net/core/secure_seq.c:125:28:    expected unsigned int const [unsigned]
[usertype] a
net/core/secure_seq.c:125:28:    got restricted __be32 [usertype] saddr
net/core/secure_seq.c:125:35: warning: incorrect type in argument 2
(different base types)
net/core/secure_seq.c:125:35:    expected unsigned int const [unsigned]
[usertype] b
net/core/secure_seq.c:125:35:    got restricted __be32 [usertype] daddr
net/core/secure_seq.c:125:43: warning: cast from restricted __be16
net/core/secure_seq.c:125:61: warning: restricted __be16 degrades to
integer


Fixes: 7cd23e5300c1 ("secure_seq: use SipHash in place of MD5")
Signed-off-by: Eric Dumazet <eduma...@google.com>
---
 net/core/secure_seq.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/core/secure_seq.c b/net/core/secure_seq.c
index 
3a9fcec94ace21238c0d6cd6d9997678e0623ab9..758f140b6bedc51669fed973b39ee317c2bf1570
 100644
--- a/net/core/secure_seq.c
+++ b/net/core/secure_seq.c
@@ -122,7 +122,9 @@ u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr,
 {
        u64 seq;
        net_secret_init();
-       seq = siphash_3u32(saddr, daddr, (u32)sport << 16 | dport, &net_secret);
+       seq = siphash_3u32((__force u32)saddr, (__force u32)daddr,
+                          (__force u32)sport << 16 | (__force u32)dport,
+                          &net_secret);
        seq += ktime_get_real_ns();
        seq &= (1ull << 48) - 1;
        return seq;