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authorMarek Lindner <mareklindner@neomailbox.ch>2016-09-30 15:21:02 +0200
committerSimon Wunderlich <sw@simonwunderlich.de>2016-11-08 19:02:37 +0100
commitf44a3ae9a2811cfd5321e0f72c02bc270410db64 (patch)
treeab5bbaa3a44d898e9ede17cc38dadc056c789a98 /net/batman-adv
parent88ffc7d0e2cdcd3d8ba603d51b81a65712899c6c (diff)
downloadlinux-f44a3ae9a2811cfd5321e0f72c02bc270410db64.tar.bz2
batman-adv: refactor wifi interface detection
The ELP protocol requires cfg80211 to auto-detect the WiFi througput to a given neighbor. Use batadv_is_cfg80211_netdev() to determine whether or not an interface is eligible. Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com> Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/bat_v_elp.c29
-rw-r--r--net/batman-adv/hard-interface.c26
-rw-r--r--net/batman-adv/hard-interface.h1
3 files changed, 36 insertions, 20 deletions
diff --git a/net/batman-adv/bat_v_elp.c b/net/batman-adv/bat_v_elp.c
index 54bdd415e8df..e601def12aec 100644
--- a/net/batman-adv/bat_v_elp.c
+++ b/net/batman-adv/bat_v_elp.c
@@ -90,22 +90,21 @@ static u32 batadv_v_elp_get_throughput(struct batadv_hardif_neigh_node *neigh)
* cfg80211 API
*/
if (batadv_is_wifi_netdev(hard_iface->net_dev)) {
- if (hard_iface->net_dev->ieee80211_ptr) {
- ret = cfg80211_get_station(hard_iface->net_dev,
- neigh->addr, &sinfo);
- if (ret == -ENOENT) {
- /* Node is not associated anymore! It would be
- * possible to delete this neighbor. For now set
- * the throughput metric to 0.
- */
- return 0;
- }
- if (!ret)
- return sinfo.expected_throughput / 100;
+ if (!batadv_is_cfg80211_netdev(hard_iface->net_dev))
+ /* unsupported WiFi driver version */
+ goto default_throughput;
+
+ ret = cfg80211_get_station(hard_iface->net_dev,
+ neigh->addr, &sinfo);
+ if (ret == -ENOENT) {
+ /* Node is not associated anymore! It would be
+ * possible to delete this neighbor. For now set
+ * the throughput metric to 0.
+ */
+ return 0;
}
-
- /* unsupported WiFi driver version */
- goto default_throughput;
+ if (!ret)
+ return sinfo.expected_throughput / 100;
}
/* if not a wifi interface, check if this device provides data via
diff --git a/net/batman-adv/hard-interface.c b/net/batman-adv/hard-interface.c
index fdbb47eebb71..c3fbc1b9c8e3 100644
--- a/net/batman-adv/hard-interface.c
+++ b/net/batman-adv/hard-interface.c
@@ -202,6 +202,26 @@ static bool batadv_is_valid_iface(const struct net_device *net_dev)
}
/**
+ * batadv_is_cfg80211_netdev - check if the given net_device struct is a
+ * cfg80211 wifi interface
+ * @net_device: the device to check
+ *
+ * Return: true if the net device is a cfg80211 wireless device, false
+ * otherwise.
+ */
+bool batadv_is_cfg80211_netdev(struct net_device *net_device)
+{
+ if (!net_device)
+ return false;
+
+ /* cfg80211 drivers have to set ieee80211_ptr */
+ if (net_device->ieee80211_ptr)
+ return true;
+
+ return false;
+}
+
+/**
* batadv_is_wifi_netdev - check if the given net_device struct is a wifi
* interface
* @net_device: the device to check
@@ -221,11 +241,7 @@ bool batadv_is_wifi_netdev(struct net_device *net_device)
return true;
#endif
- /* cfg80211 drivers have to set ieee80211_ptr */
- if (net_device->ieee80211_ptr)
- return true;
-
- return false;
+ return batadv_is_cfg80211_netdev(net_device);
}
/**
diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h
index a043182586e9..7f9acab0514c 100644
--- a/net/batman-adv/hard-interface.h
+++ b/net/batman-adv/hard-interface.h
@@ -65,6 +65,7 @@ enum batadv_hard_if_cleanup {
extern struct notifier_block batadv_hard_if_notifier;
+bool batadv_is_cfg80211_netdev(struct net_device *net_device);
bool batadv_is_wifi_netdev(struct net_device *net_device);
bool batadv_is_wifi_iface(int ifindex);
struct batadv_hard_iface*