Repository : ssh://git@open-mesh.org/batman-adv
On branch : master
commit a75dbf478b145d01b1d64ea9b4540741f64f577f Author: Matthias Schiffer mschiffer@universe-factory.net Date: Sat Mar 9 23:14:22 2013 +0100
batman-adv: split batadv_is_wifi_iface() into two functions
Previously batadv_is_wifi_iface() did two things at once: looking up a net_device from an interface index, and determining if it is a wifi device.
The second part is useful itself when the caller already has a net_device reference.
Signed-off-by: Matthias Schiffer mschiffer@universe-factory.net Signed-off-by: Marek Lindner lindner_marek@yahoo.de
a75dbf478b145d01b1d64ea9b4540741f64f577f hard-interface.c | 84 +++++++++++++++++++++++++++++++++--------------------- 1 file changed, 52 insertions(+), 32 deletions(-)
diff --git a/hard-interface.c b/hard-interface.c index fd99e42..d329c1b 100644 --- a/hard-interface.c +++ b/hard-interface.c @@ -117,6 +117,58 @@ static int batadv_is_valid_iface(const struct net_device *net_dev) return 1; }
+/** + * batadv_is_wifi_netdev - check if the given net_device struct is a wifi + * interface + * @net_device: the device to check + * + * Returns true if the net device is a 802.11 wireless device, false otherwise. + */ +static bool batadv_is_wifi_netdev(struct net_device *net_device) +{ +#ifdef CONFIG_WIRELESS_EXT + /* pre-cfg80211 drivers have to implement WEXT, so it is possible to + * check for wireless_handlers != NULL + */ + if (net_device->wireless_handlers) + return true; +#endif + + /* cfg80211 drivers have to set ieee80211_ptr */ + if (net_device->ieee80211_ptr) + return true; + + return false; +} + +/** + * batadv_is_wifi_iface - check if the given interface represented by ifindex + * is a wifi interface + * @ifindex: interface index to check + * + * Returns true if the interface represented by ifindex is a 802.11 wireless + * device, false otherwise. + */ +bool batadv_is_wifi_iface(int ifindex) +{ + struct net_device *net_device = NULL; + bool ret = false; + + if (ifindex == BATADV_NULL_IFINDEX) + goto out; + + net_device = dev_get_by_index(&init_net, ifindex); + if (!net_device) + goto out; + + ret = batadv_is_wifi_netdev(net_device); + +out: + if (net_device) + dev_put(net_device); + return ret; +} + static struct batadv_hard_iface * batadv_hardif_get_active(const struct net_device *soft_iface) { @@ -631,38 +683,6 @@ out: return NOTIFY_DONE; }
-/* This function returns true if the interface represented by ifindex is a - * 802.11 wireless device - */ -bool batadv_is_wifi_iface(int ifindex) -{ - struct net_device *net_device = NULL; - bool ret = false; - - if (ifindex == BATADV_NULL_IFINDEX) - goto out; - - net_device = dev_get_by_index(&init_net, ifindex); - if (!net_device) - goto out; - -#ifdef CONFIG_WIRELESS_EXT - /* pre-cfg80211 drivers have to implement WEXT, so it is possible to - * check for wireless_handlers != NULL - */ - if (net_device->wireless_handlers) - ret = true; - else -#endif - /* cfg80211 drivers have to set ieee80211_ptr */ - if (net_device->ieee80211_ptr) - ret = true; -out: - if (net_device) - dev_put(net_device); - return ret; -} - struct notifier_block batadv_hard_if_notifier = { .notifier_call = batadv_hard_if_event, };