batman-adv: wifi interface detection on

Hi,

Marek created some patches a while ago to automatically detect the wifi interface under virtual interfaces like VLANs. These patches had some problems because they failed to correctly set the num_bcasts in these situations and also had some locking problems.

The following patches try to address these by introducing a cache for the detected wifi configuration (wifi_flags which make taking the rtnl lock in critical section unnecessary) and by updating the num_bcast and wifi_flags when the interface behind iflink changes.

* added patch "batman-adv: Return non-const ptr in batadv_getlink_net"
* added patch "batman-adv: Close two alignment holes in batadv_hard_iface"
* added patch "batman-adv: Cache the type of wifi device for each hardif"
* added patch "batman-adv: Update wifi flags on upper link change"
* introduced batadv_get_real_netdevice which can be used inside rtnl locked contexts
* replaced wifi check functions with ones that use the wifi_flags cache
* use batadv_getlink_net to get the iflink net_namespace
* force rtnl_lock in batadv_get_real_netdev

Kind regards,
Sven

Marek Lindner (3):
batman-adv: refactor wifi interface detection
batman-adv: additional checks for virtual interfaces on top of WiFi
batman-adv: retrieve B.A.T.M.A.N. V WiFi neighbor stats from real interface

Sven Eckelmann (4):
batman-adv: Return non-const ptr in batadv_getlink_net
batman-adv: Close two alignment holes in batadv_hard_iface
batman-adv: Cache the type of wifi device for each hardif
batman-adv: Update wifi flags on upper link change

 net/batman-adv/bat_iv_ogm.c        |   2 +-
 net/batman-adv/bat_v_elp.c         |  41 +++++----
 net/batman-adv/hard-interface.c    | 173 ++++++++++++++++++++++++++++++++++---
 net/batman-adv/hard-interface.h    |   5 +-
 net/batman-adv/translation-table.c |  10 ++-
 net/batman-adv/types.h             |  21 ++++-
 6 files changed, 217 insertions(+), 35 deletions(-)