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| author |   Johannes Berg <johannes.berg@intel.com> | 2020-05-28 21:34:25 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-05-31 11:26:09 +0200 |
| commit | afbc9c9e8bfe71e8bd12a8c01bedd969fbab8f0e (patch) | |
| tree | 3e89d6f0321e31747b75e701d3c5afc8fa944c93 | |
| parent | nl80211: really allow client-only BIGTK support (diff) | |
| download | wireguard-linux-afbc9c9e8bfe71e8bd12a8c01bedd969fbab8f0e.tar.xz wireguard-linux-afbc9c9e8bfe71e8bd12a8c01bedd969fbab8f0e.zip | |
cfg80211: add a helper to identify 6 GHz PSCs
This allows identifying whether or not a channel is a PSC
(preferred scanning channel).
Link: https://lore.kernel.org/r/20200528213443.414363ecf62c.Ic15e681a0e249eab7350a06ceb582cca8bb9a080@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
| -rw-r--r-- | include/net/cfg80211.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h index e2dbc9c02ef3..a38653358885 100644 --- a/include/net/cfg80211.h +++ b/include/net/cfg80211.h @@ -5278,6 +5278,21 @@ ieee80211_get_channel(struct wiphy *wiphy, int freq) } /** + * cfg80211_channel_is_psc - Check if the channel is a 6 GHz PSC + * @chan: control channel to check + * + * The Preferred Scanning Channels (PSC) are defined in + * Draft IEEE P802.11ax/D5.0, 26.17.2.3.3 + */ +static inline bool cfg80211_channel_is_psc(struct ieee80211_channel *chan) +{ + if (chan->band != NL80211_BAND_6GHZ) + return false; + + return ieee80211_frequency_to_channel(chan->center_freq) % 16 == 5; +} + +/** * ieee80211_get_response_rate - get basic rate for a given rate * * @sband: the band to look for rates in |