configure: Add configure-time check for GCC 4.0+ atomic built-ins.

[sliver-openvswitch.git] / lib / odp-util.c

diff --git a/lib/odp-util.c b/lib/odp-util.c
index 5a32221..3c3063d 100644 (file)
--- a/lib/odp-util.c
+++ b/lib/odp-util.c
@@ -2512,7 +2512,8 @@ uint32_t
 odp_flow_key_hash(const struct nlattr *key, size_t key_len)
 {
     BUILD_ASSERT_DECL(!(NLA_ALIGNTO % sizeof(uint32_t)));
-    return hash_words((const uint32_t *) key, key_len / sizeof(uint32_t), 0);
+    return hash_words(ALIGNED_CAST(const uint32_t *, key),
+                      key_len / sizeof(uint32_t), 0);
 }
 
 static void