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/mesh.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'net/wireless/mesh.c') diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c index d42a3fcb2f67..5af5cc6b2c4c 100644 --- a/net/wireless/mesh.c +++ b/net/wireless/mesh.c @@ -236,6 +236,12 @@ int cfg80211_set_mesh_channel(struct cfg80211_registered_device *rdev, if (!netif_running(wdev->netdev)) return -ENETDOWN; + /* cfg80211_can_use_chan() calls + * cfg80211_can_use_iftype_chan() with no radar + * detection, so if we're trying to use a radar + * channel here, something is wrong. + */ + WARN_ON_ONCE(chandef->chan->flags & IEEE80211_CHAN_RADAR); err = cfg80211_can_use_chan(rdev, wdev, chandef->chan, CHAN_MODE_SHARED); if (err) -- cgit v1.2.3