rhashtable: Move masking back into key_hashfn

This patch reverts commit c88455ce50ae4224d84960ce2baa53e61580df27
("rhashtable: key_hashfn() must return full hash value") because
the only user of it always masks the hash value.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Acked-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/lib/rhashtable.c b/lib/rhashtable.c
index d7f3db5..ff9cc33 100644 (file)
--- a/lib/rhashtable.c
+++ b/lib/rhashtable.c
@@ -83,7 +83,8 @@ static u32 obj_raw_hashfn(struct rhashtable *ht,
 static u32 key_hashfn(struct rhashtable *ht, const struct bucket_table *tbl,
                      const void *key, u32 len)
 {
-       return ht->p.hashfn(key, len, tbl->hash_rnd) >> HASH_RESERVED_SPACE;
+       return rht_bucket_index(tbl, ht->p.hashfn(key, len, tbl->hash_rnd) >>
+                                    HASH_RESERVED_SPACE);
 }
 
 static u32 head_hashfn(struct rhashtable *ht,
@@ -622,7 +623,7 @@ void *rhashtable_lookup_compare(struct rhashtable *ht, const void *key,
        tbl = rht_dereference_rcu(ht->tbl, ht);
        hash = key_hashfn(ht, tbl, key, ht->p.key_len);
 restart:
-       rht_for_each_rcu(he, tbl, rht_bucket_index(tbl, hash)) {
+       rht_for_each_rcu(he, tbl, hash) {
                if (!compare(rht_obj(ht, he), arg))
                        continue;
                rcu_read_unlock();