[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/net/batman-adv/hash.c b/src/kernel/linux/v4.14/net/batman-adv/hash.c
new file mode 100644
index 0000000..b5f7e13
--- /dev/null
+++ b/src/kernel/linux/v4.14/net/batman-adv/hash.c
@@ -0,0 +1,80 @@
+/* Copyright (C) 2006-2017 B.A.T.M.A.N. contributors:
+ *
+ * Simon Wunderlich, Marek Lindner
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of version 2 of the GNU General Public
+ * License as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hash.h"
+#include "main.h"
+
+#include <linux/fs.h>
+#include <linux/lockdep.h>
+#include <linux/slab.h>
+
+/* clears the hash */
+static void batadv_hash_init(struct batadv_hashtable *hash)
+{
+ u32 i;
+
+ for (i = 0; i < hash->size; i++) {
+ INIT_HLIST_HEAD(&hash->table[i]);
+ spin_lock_init(&hash->list_locks[i]);
+ }
+}
+
+/* free only the hashtable and the hash itself. */
+void batadv_hash_destroy(struct batadv_hashtable *hash)
+{
+ kfree(hash->list_locks);
+ kfree(hash->table);
+ kfree(hash);
+}
+
+/* allocates and clears the hash */
+struct batadv_hashtable *batadv_hash_new(u32 size)
+{
+ struct batadv_hashtable *hash;
+
+ hash = kmalloc(sizeof(*hash), GFP_ATOMIC);
+ if (!hash)
+ return NULL;
+
+ hash->table = kmalloc_array(size, sizeof(*hash->table), GFP_ATOMIC);
+ if (!hash->table)
+ goto free_hash;
+
+ hash->list_locks = kmalloc_array(size, sizeof(*hash->list_locks),
+ GFP_ATOMIC);
+ if (!hash->list_locks)
+ goto free_table;
+
+ hash->size = size;
+ batadv_hash_init(hash);
+ return hash;
+
+free_table:
+ kfree(hash->table);
+free_hash:
+ kfree(hash);
+ return NULL;
+}
+
+void batadv_hash_set_lock_class(struct batadv_hashtable *hash,
+ struct lock_class_key *key)
+{
+ u32 i;
+
+ for (i = 0; i < hash->size; i++)
+ lockdep_set_class(&hash->list_locks[i], key);
+}