diff options
| author |   Dmitry Lebed <dlebed@quantenna.com> | 2018-03-26 16:36:32 +0300 |
|---|---|---|
| committer |   Johannes Berg <johannes.berg@intel.com> | 2018-03-29 10:21:35 +0200 |
| commit | 2c390e44e46675da0e7bba5c3b921a091a60ec2c (patch) | |
| tree | 552064b57473f0ce5720fd3e3ebba1aac1831107 /net/wireless | |
| parent | cfg80211: fix CAC_STARTED event handling (diff) | |
| download | linux-dev-2c390e44e46675da0e7bba5c3b921a091a60ec2c.tar.xz linux-dev-2c390e44e46675da0e7bba5c3b921a091a60ec2c.zip | |
cfg80211: enable use of non-cleared DFS channels for DFS offload
Currently channel switch/start_ap to DFS channel cannot be done to
non-CAC-cleared channel even if DFS offload if enabled.
Make non-cleared DFS channels available if DFS offload is enabled.
CAC will be started by HW after channel change, start_ap call, etc.
Signed-off-by: Dmitry Lebed <dlebed@quantenna.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/chan.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/net/wireless/chan.c b/net/wireless/chan.c index a48859982a32..2db713d18f71 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -579,6 +579,10 @@ static bool cfg80211_get_chans_dfs_available(struct wiphy *wiphy, { struct ieee80211_channel *c; u32 freq, start_freq, end_freq; + bool dfs_offload; + + dfs_offload = wiphy_ext_feature_isset(wiphy, + NL80211_EXT_FEATURE_DFS_OFFLOAD); start_freq = cfg80211_get_start_freq(center_freq, bandwidth); end_freq = cfg80211_get_end_freq(center_freq, bandwidth); @@ -596,8 +600,9 @@ static bool cfg80211_get_chans_dfs_available(struct wiphy *wiphy, if (c->flags & IEEE80211_CHAN_DISABLED) return false; - if ((c->flags & IEEE80211_CHAN_RADAR) && - (c->dfs_state != NL80211_DFS_AVAILABLE)) + if ((c->flags & IEEE80211_CHAN_RADAR) && + (c->dfs_state != NL80211_DFS_AVAILABLE) && + !(c->dfs_state == NL80211_DFS_USABLE && dfs_offload)) return false; } |