X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=lib%2Fhash.c;h=41ad1bf2fc96ba8a9d041ef8a1281176cf1e1819;hb=c9409e7744fbdbb8d8f0a7a04214b680a0360c89;hp=a77da7dcb6180b73189003aa5cc0fd5490b2befd;hpb=7376da647fb2d327f8765381b27b4db8d81a104f;p=sliver-openvswitch.git

diff --git a/lib/hash.c b/lib/hash.c
index a77da7dcb..41ad1bf2f 100644
--- a/lib/hash.c
+++ b/lib/hash.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2008, 2009, 2010, 2012 Nicira Networks.
+ * Copyright (c) 2008, 2009, 2010, 2012 Nicira, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -102,3 +102,18 @@ hash_bytes(const void *p_, size_t n, uint32_t basis)
 
     return c;
 }
+
+/* Returns the hash of the 'n' 32-bit words at 'p', starting from 'basis'.
+ * 'p' must be properly aligned. */
+uint32_t
+mhash_words(const uint32_t p[], size_t n_words, uint32_t basis)
+{
+    uint32_t hash;
+    size_t i;
+
+    hash = basis;
+    for (i = 0; i < n_words; i++) {
+        hash = mhash_add(hash, p[i]);
+    }
+    return mhash_finish(hash, n_words);
+}