batman-adv: Drop implicit creation of batadv net_devices

The sysfs code in batman-adv was could create a new batadv interfaces on
demand when a string (interface name) was written to the
batman-adv/mesh_iface file. But the code no longer exists in the current
batman-adv codebase. The helper code to implement this behavior must be
considered as unused and can be dropped.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>

diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index b99f64f..a638f35 100644 (file)
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -725,17 +725,9 @@ int batadv_hardif_enable_interface(struct batadv_hard_iface *hard_iface,
        kref_get(&hard_iface->refcount);
 
        soft_iface = dev_get_by_name(net, iface_name);
-
        if (!soft_iface) {
-               soft_iface = batadv_softif_create(net, iface_name);
-
-               if (!soft_iface) {
-                       ret = -ENOMEM;
-                       goto err;
-               }
-
-               /* dev_get_by_name() increases the reference counter for us */
-               dev_hold(soft_iface);
+               ret = -EINVAL;
+               goto err;
        }
 
        if (!batadv_softif_is_valid(soft_iface)) {

diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index a21884c..0c5b342 100644 (file)
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -26,7 +26,6 @@
 #include <linux/netdevice.h>
 #include <linux/netlink.h>
 #include <linux/percpu.h>
-#include <linux/printk.h>
 #include <linux/random.h>
 #include <linux/rculist.h>
 #include <linux/rcupdate.h>
@@ -37,6 +36,7 @@
 #include <linux/stddef.h>
 #include <linux/string.h>
 #include <linux/types.h>
+#include <net/net_namespace.h>
 #include <net/netlink.h>
 #include <uapi/linux/batadv_packet.h>
 #include <uapi/linux/batman_adv.h>
@@ -1087,38 +1087,6 @@ static int batadv_softif_newlink(struct net *src_net, struct net_device *dev,
 }
 
 /**
- * batadv_softif_create() - Create and register soft interface
- * @net: the applicable net namespace
- * @name: name of the new soft interface
- *
- * Return: newly allocated soft_interface, NULL on errors
- */
-struct net_device *batadv_softif_create(struct net *net, const char *name)
-{
-       struct net_device *soft_iface;
-       int ret;
-
-       soft_iface = alloc_netdev(sizeof(struct batadv_priv), name,
-                                 NET_NAME_UNKNOWN, batadv_softif_init_early);
-       if (!soft_iface)
-               return NULL;
-
-       dev_net_set(soft_iface, net);
-
-       soft_iface->rtnl_link_ops = &batadv_link_ops;
-
-       ret = register_netdevice(soft_iface);
-       if (ret < 0) {
-               pr_err("Unable to register the batman interface '%s': %i\n",
-                      name, ret);
-               free_netdev(soft_iface);
-               return NULL;
-       }
-
-       return soft_iface;
-}
-
-/**
  * batadv_softif_destroy_netlink() - deletion of batadv_soft_interface via
  *  netlink
  * @soft_iface: the to-be-removed batman-adv interface

diff --git a/net/batman-adv/soft-interface.h b/net/batman-adv/soft-interface.h
index 38b0ad1..67a2ddd 100644 (file)
--- a/net/batman-adv/soft-interface.h
+++ b/net/batman-adv/soft-interface.h
@@ -12,14 +12,12 @@
 #include <linux/netdevice.h>
 #include <linux/skbuff.h>
 #include <linux/types.h>
-#include <net/net_namespace.h>
 #include <net/rtnetlink.h>
 
 int batadv_skb_head_push(struct sk_buff *skb, unsigned int len);
 void batadv_interface_rx(struct net_device *soft_iface,
                         struct sk_buff *skb, int hdr_size,
                         struct batadv_orig_node *orig_node);
-struct net_device *batadv_softif_create(struct net *net, const char *name);
 bool batadv_softif_is_valid(const struct net_device *net_dev);
 extern struct rtnl_link_ops batadv_link_ops;
 int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid);