diff options
author | Sven Eckelmann <sven@narfation.org> | 2021-06-01 23:40:16 +0200 |
---|---|---|
committer | Simon Wunderlich <sw@simonwunderlich.de> | 2021-06-02 22:25:45 +0200 |
commit | bf6b260b8a9654db99761cde74c6b16356b9b441 (patch) | |
tree | 17da64e89fdbf5c817cf97452100560611a726f8 /net/batman-adv | |
parent | 791ad7f5c17ea3d0887b94eed1e7812777f8e496 (diff) | |
download | linux-bf6b260b8a9654db99761cde74c6b16356b9b441.tar.bz2 |
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>
Diffstat (limited to 'net/batman-adv')
-rw-r--r-- | net/batman-adv/hard-interface.c | 12 | ||||
-rw-r--r-- | net/batman-adv/soft-interface.c | 34 | ||||
-rw-r--r-- | net/batman-adv/soft-interface.h | 2 |
3 files changed, 3 insertions, 45 deletions
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c index b99f64f483fc..a638f35598f0 100644 --- 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 a21884c0d47f..0c5b34251a6d 100644 --- 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 38b0ad182584..67a2ddd6832f 100644 --- 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); |