From fe7c3a1f20a419d86d3f90316d8efc2d04f3f0ed Mon Sep 17 00:00:00 2001 From: Janusz Dziedzic Date: Tue, 5 Nov 2013 14:48:48 +0100 Subject: cfg80211: DFS check chandef usable before CAC Check chandef we get in CAC request is usable for CAC. All channels have to be DFS channels. Allow DFS_USABLE and DFS_AVAILABLE channels mix. At least one channel has to be DFS_USABLE (require CAC). Signed-off-by: Janusz Dziedzic Reviewed-by: Luis R. Rodriguez Signed-off-by: Johannes Berg --- net/wireless/core.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) (limited to 'net/wireless/core.h') diff --git a/net/wireless/core.h b/net/wireless/core.h index eb0f7a3a25a9..2888867ee7c5 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -382,6 +382,19 @@ int cfg80211_can_use_iftype_chan(struct cfg80211_registered_device *rdev, enum cfg80211_chan_mode chanmode, u8 radar_detect); +/** + * cfg80211_chandef_dfs_usable - checks if chandef is DFS usable + * @wiphy: the wiphy to validate against + * @chandef: the channel definition to check + * + * Checks if chandef is usable and we can/need start CAC on such channel. + * + * Return: Return true if all channels available and at least + * one channel require CAC (NL80211_DFS_USABLE) + */ +bool cfg80211_chandef_dfs_usable(struct wiphy *wiphy, + const struct cfg80211_chan_def *chandef); + void cfg80211_set_dfs_state(struct wiphy *wiphy, const struct cfg80211_chan_def *chandef, enum nl80211_dfs_state dfs_state); -- cgit v1.2.3