From patchwork Tue Jul 12 09:08:04 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Marek Lindner X-Patchwork-Id: 16502 X-Patchwork-Delegate: mareklindner@neomailbox.ch Return-Path: X-Original-To: patchwork@open-mesh.org Delivered-To: patchwork@open-mesh.org Received: from open-mesh.org (localhost [IPv6:::1]) by open-mesh.org (Postfix) with ESMTP id D183F817A4; Tue, 12 Jul 2016 11:08:19 +0200 (CEST) Authentication-Results: open-mesh.org; dmarc=none header.from=neomailbox.ch Received-SPF: Pass (sender SPF authorized) identity=mailfrom; client-ip=5.148.176.60; helo=s2.neomailbox.net; envelope-from=mareklindner@neomailbox.ch; receiver=b.a.t.m.a.n@lists.open-mesh.org Authentication-Results: open-mesh.org; dmarc=none header.from=neomailbox.ch Received: from s2.neomailbox.net (s2.neomailbox.net [5.148.176.60]) by open-mesh.org (Postfix) with ESMTPS id E649E8096B for ; Tue, 12 Jul 2016 11:08:17 +0200 (CEST) From: Marek Lindner To: b.a.t.m.a.n@lists.open-mesh.org Date: Tue, 12 Jul 2016 17:08:04 +0800 Message-Id: <1468314486-29592-1-git-send-email-mareklindner@neomailbox.ch> Cc: Marek Lindner Subject: [B.A.T.M.A.N.] [PATCH 1/3] batman-adv: refactor wifi interface detection X-BeenThere: b.a.t.m.a.n@lists.open-mesh.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: The list for a Better Approach To Mobile Ad-hoc Networking List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: The list for a Better Approach To Mobile Ad-hoc Networking Errors-To: b.a.t.m.a.n-bounces@lists.open-mesh.org Sender: "B.A.T.M.A.N" 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 Reviewed-by: Sven Eckelmann --- net/batman-adv/bat_v_elp.c | 29 ++++++++++++++--------------- net/batman-adv/hard-interface.c | 26 +++++++++++++++++++++----- net/batman-adv/hard-interface.h | 1 + 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 7d17001..51fc08d 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 714af8e..478977b 100644 --- a/net/batman-adv/hard-interface.c +++ b/net/batman-adv/hard-interface.c @@ -166,6 +166,26 @@ 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 @@ -185,11 +205,7 @@ 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); } static struct batadv_hard_iface * diff --git a/net/batman-adv/hard-interface.h b/net/batman-adv/hard-interface.h index a76724d..e0893de 100644 --- a/net/batman-adv/hard-interface.h +++ b/net/batman-adv/hard-interface.h @@ -51,6 +51,7 @@ 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*