batman-adv: Use common Jenkins Hash implementation

An unoptimized version of the Jenkins one-at-a-time hash function is used
and partially copied all over the code wherever an hashtable is used.
Instead the optimized version shared between the whole kernel should be
used to reduce code duplication and use better optimized code.

Only the DAT code must use the old implementation because it is used as
distributed hash function which has to be common for all nodes.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>

1 files changed, 0 insertions, 22 deletions

diff --git a/net/batman-adv/hash.h b/net/batman-adv/hash.h
index 379e32acf2b4..bcf427cafe49 100644
--- a/net/batman-adv/hash.h
+++ b/net/batman-adv/hash.h
@@ -80,28 +80,6 @@ static inline void batadv_hash_delete(struct batadv_hashtable *hash,
 }
 
 /**
- *	batadv_hash_bytes - hash some bytes and add them to the previous hash
- *	@hash: previous hash value
- *	@data: data to be hashed
- *	@size: number of bytes to be hashed
- *
- *	Returns the new hash value.
- */
-static inline uint32_t batadv_hash_bytes(uint32_t hash, const void *data,
-					 uint32_t size)
-{
-	const unsigned char *key = data;
-	int i;
-
-	for (i = 0; i < size; i++) {
-		hash += key[i];
-		hash += (hash << 10);
-		hash ^= (hash >> 6);
-	}
-	return hash;
-}
-
-/**
  *	batadv_hash_add - adds data to the hashtable
  *	@hash: storage hash table
  *	@compare: callback to determine if 2 hash elements are identical