From 7b2106aea2638948806df248215b14efd84c5ffc Mon Sep 17 00:00:00 2001 From: Luciano Coelho Date: Thu, 20 Feb 2014 16:36:21 +0200 Subject: cfg80211: remove radar requirements check from cfg80211_can_use_iftype_chan() We don't have to double check whether the parameters passed to cfg80211_can_use_iftype_chan() are correct. We should just make sure they *are* when we call this function. Remove the radar_detect argument check in cfg80211_can_use_iftype_chan() to simplify the code. Signed-off-by: Luciano Coelho [keep braces around a long comment + single statement] Signed-off-by: Johannes Berg --- net/wireless/util.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) (limited to 'net/wireless/util.c') diff --git a/net/wireless/util.c b/net/wireless/util.c index 780b4546c9c7..57b3ce7a6b92 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1269,7 +1269,6 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, enum cfg80211_chan_mode chmode; int num_different_channels = 0; int total = 1; - bool radar_required = false; int i, j; ASSERT_RTNL(); @@ -1277,35 +1276,7 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, if (WARN_ON(hweight32(radar_detect) > 1)) return -EINVAL; - switch (iftype) { - case NL80211_IFTYPE_ADHOC: - case NL80211_IFTYPE_AP: - case NL80211_IFTYPE_AP_VLAN: - case NL80211_IFTYPE_MESH_POINT: - case NL80211_IFTYPE_P2P_GO: - case NL80211_IFTYPE_WDS: - /* if the interface could potentially choose a DFS channel, - * then mark DFS as required. - */ - if (!chan) { - if (chanmode != CHAN_MODE_UNDEFINED && radar_detect) - radar_required = true; - break; - } - radar_required = !!(chan->flags & IEEE80211_CHAN_RADAR); - break; - case NL80211_IFTYPE_P2P_CLIENT: - case NL80211_IFTYPE_STATION: - case NL80211_IFTYPE_P2P_DEVICE: - case NL80211_IFTYPE_MONITOR: - break; - case NUM_NL80211_IFTYPES: - case NL80211_IFTYPE_UNSPECIFIED: - default: - return -EINVAL; - } - - if (radar_required && !radar_detect) + if (WARN_ON(iftype >= NUM_NL80211_IFTYPES)) return -EINVAL; /* Always allow software iftypes */ -- cgit v1.2.3-70-g09d2