[T106][ZXW-22]7520V3SCV2.01.01.02P42U09_VEC_V0.8_AP_VEC origin source commit
Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
diff --git a/ap/os/linux/linux-3.4.x/net/ipv6/protocol.c b/ap/os/linux/linux-3.4.x/net/ipv6/protocol.c
new file mode 100644
index 0000000..9a7978f
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/net/ipv6/protocol.c
@@ -0,0 +1,54 @@
+/*
+ * INET An implementation of the TCP/IP protocol suite for the LINUX
+ * operating system. INET is implemented using the BSD Socket
+ * interface as the means of communication with the user level.
+ *
+ * PF_INET6 protocol dispatch tables.
+ *
+ * Authors: Pedro Roque <roque@di.fc.ul.pt>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+/*
+ * Changes:
+ *
+ * Vince Laviano (vince@cs.stanford.edu) 16 May 2001
+ * - Removed unused variable 'inet6_protocol_base'
+ * - Modified inet6_del_protocol() to correctly maintain copy bit.
+ */
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/spinlock.h>
+#include <net/protocol.h>
+
+const struct inet6_protocol __rcu *inet6_protos[MAX_INET_PROTOS] __read_mostly;
+
+int inet6_add_protocol(const struct inet6_protocol *prot, unsigned char protocol)
+{
+ int hash = protocol & (MAX_INET_PROTOS - 1);
+
+ return !cmpxchg((const struct inet6_protocol **)&inet6_protos[hash],
+ NULL, prot) ? 0 : -1;
+}
+EXPORT_SYMBOL(inet6_add_protocol);
+
+/*
+ * Remove a protocol from the hash tables.
+ */
+
+int inet6_del_protocol(const struct inet6_protocol *prot, unsigned char protocol)
+{
+ int ret, hash = protocol & (MAX_INET_PROTOS - 1);
+
+ ret = (cmpxchg((const struct inet6_protocol **)&inet6_protos[hash],
+ prot, NULL) == prot) ? 0 : -1;
+
+ synchronize_net();
+
+ return ret;
+}
+EXPORT_SYMBOL(inet6_del_protocol);