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| author | Michal Kazior <michal.kazior@tieto.com> | 2014-01-29 14:22:27 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2014-02-04 21:58:17 +0100 |
| commit | 9e0e29615a2077be852b1245b57c5b00fa609522 (patch) | |
| tree | 73d899373e01efe1fd72a895d8e2fe2f6bc8fcb2 /net/wireless/util.c | |
| parent | fe94f3a4ffaa20c7470038c69ffc8e545ef5f90a (diff) | |
| download | linux-9e0e29615a2077be852b1245b57c5b00fa609522.tar.bz2 | |
cfg80211: consider existing DFS interfaces
It was possible to break interface combinations in
the following way:
combo 1: iftype = AP, num_ifaces = 2, num_chans = 2,
combo 2: iftype = AP, num_ifaces = 1, num_chans = 1, radar = HT20
With the above interface combinations it was
possible to:
step 1. start AP on DFS channel by matching combo 2
step 2. start AP on non-DFS channel by matching combo 1
This was possible beacuse (step 2) did not consider
if other interfaces require radar detection.
The patch changes how cfg80211 tracks channels -
instead of channel itself now a complete chandef
is stored.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/util.c')
| -rw-r--r-- | net/wireless/util.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c index 7526a4d8aa16..780b4546c9c7 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -1357,7 +1357,7 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, */ mutex_lock_nested(&wdev_iter->mtx, 1); __acquire(wdev_iter->mtx); - cfg80211_get_chan_state(wdev_iter, &ch, &chmode); + cfg80211_get_chan_state(wdev_iter, &ch, &chmode, &radar_detect); wdev_unlock(wdev_iter); switch (chmode) { |