netns: constify net_hash_mix() and various callers

const qualifiers ease code review by making clear
which objects are not written in a function.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 5 insertions, 5 deletions

diff --git a/include/net/inet_hashtables.h b/include/net/inet_hashtables.h
index bcd64756e5fe..eb1963af0ebd 100644
--- a/include/net/inet_hashtables.h
+++ b/include/net/inet_hashtables.h
@@ -221,8 +221,8 @@ inet_bind_bucket_create(struct kmem_cache *cachep, struct net *net,
 void inet_bind_bucket_destroy(struct kmem_cache *cachep,
                               struct inet_bind_bucket *tb);
 
-static inline int inet_bhashfn(struct net *net, const __u16 lport,
-                               const int bhash_size)
+static inline u32 inet_bhashfn(const struct net *net, const __u16 lport,
+                               const u32 bhash_size)
 {
         return (lport + net_hash_mix(net)) & (bhash_size - 1);
 }
@@ -231,7 +231,7 @@ void inet_bind_hash(struct sock *sk, struct inet_bind_bucket *tb,
                     const unsigned short snum);
 
 /* These can have wildcards, don't try too hard. */
-static inline int inet_lhashfn(struct net *net, const unsigned short num)
+static inline u32 inet_lhashfn(const struct net *net, const unsigned short num)
 {
         return (num + net_hash_mix(net)) & (INET_LHTABLE_SIZE - 1);
 }
diff --git a/include/net/netns/hash.h b/include/net/netns/hash.h
index c06ac58ca107..69a6715d9f3f 100644
--- a/include/net/netns/hash.h
+++ b/include/net/netns/hash.h
@@ -5,7 +5,7 @@
 
 struct net;
 
-static inline unsigned int net_hash_mix(struct net *net)
+static inline u32 net_hash_mix(const struct net *net)
 {
 #ifdef CONFIG_NET_NS
         /*
@@ -13,7 +13,7 @@ static inline unsigned int net_hash_mix(struct net *net)
          * always zeroed
          */
 
-        return (unsigned)(((unsigned long)net) >> L1_CACHE_SHIFT);
+        return (u32)(((unsigned long)net) >> L1_CACHE_SHIFT);
 #else
         return 0;
 #endif