ipv6: move in6_dev_finish_destroy() into core kernel
in6_dev_put() will be needed by vxlan module, so is
in6_dev_finish_destroy().
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/addrconf_core.c b/net/ipv6/addrconf_core.c
index a864033..4c11cbc 100644
--- a/net/ipv6/addrconf_core.c
+++ b/net/ipv6/addrconf_core.c
@@ -6,6 +6,7 @@
#include <linux/export.h>
#include <net/ipv6.h>
#include <net/addrconf.h>
+#include <net/ip.h>
#define IPV6_ADDR_SCOPE_TYPE(scope) ((scope) << 16)
@@ -117,3 +118,33 @@
EXPORT_SYMBOL(in6addr_interfacelocal_allrouters);
const struct in6_addr in6addr_sitelocal_allrouters = IN6ADDR_SITELOCAL_ALLROUTERS_INIT;
EXPORT_SYMBOL(in6addr_sitelocal_allrouters);
+
+static void snmp6_free_dev(struct inet6_dev *idev)
+{
+ kfree(idev->stats.icmpv6msgdev);
+ kfree(idev->stats.icmpv6dev);
+ snmp_mib_free((void __percpu **)idev->stats.ipv6);
+}
+
+/* Nobody refers to this device, we may destroy it. */
+
+void in6_dev_finish_destroy(struct inet6_dev *idev)
+{
+ struct net_device *dev = idev->dev;
+
+ WARN_ON(!list_empty(&idev->addr_list));
+ WARN_ON(idev->mc_list != NULL);
+ WARN_ON(timer_pending(&idev->rs_timer));
+
+#ifdef NET_REFCNT_DEBUG
+ pr_debug("%s: %s\n", __func__, dev ? dev->name : "NIL");
+#endif
+ dev_put(dev);
+ if (!idev->dead) {
+ pr_warn("Freeing alive inet6 device %p\n", idev);
+ return;
+ }
+ snmp6_free_dev(idev);
+ kfree_rcu(idev, rcu);
+}
+EXPORT_SYMBOL(in6_dev_finish_destroy);