From: Johannes Berg <johannes.berg@xxxxxxxxx> If a 6 GHz channel exists, then we can probably safely assume that the device actually supports it, and then it should support most bandwidths. This will probably need to be extended to check the interface type and then dig into the HE capabilities for that though, to have the correct bandwidth check. Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> --- net/wireless/chan.c | 22 +++++++++++++++------- 1 file changed, 15 insertions(+), 7 deletions(-) diff --git a/net/wireless/chan.c b/net/wireless/chan.c index e111c08daa0e..cddf92c5d09e 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -6,7 +6,7 @@ * * Copyright 2009 Johannes Berg <johannes@xxxxxxxxxxxxxxxx> * Copyright 2013-2014 Intel Mobile Communications GmbH - * Copyright 2018 Intel Corporation + * Copyright 2018-2020 Intel Corporation */ #include <linux/export.h> @@ -919,7 +919,8 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy, width = 10; break; case NL80211_CHAN_WIDTH_20: - if (!ht_cap->ht_supported) + if (!ht_cap->ht_supported && + chandef->chan->band != NL80211_BAND_6GHZ) return false; /* fall through */ case NL80211_CHAN_WIDTH_20_NOHT: @@ -928,6 +929,8 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy, break; case NL80211_CHAN_WIDTH_40: width = 40; + if (chandef->chan->band == NL80211_BAND_6GHZ) + break; if (!ht_cap->ht_supported) return false; if (!(ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) || @@ -942,24 +945,29 @@ bool cfg80211_chandef_usable(struct wiphy *wiphy, break; case NL80211_CHAN_WIDTH_80P80: cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; - if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) + if (chandef->chan->band != NL80211_BAND_6GHZ && + cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) return false; /* fall through */ case NL80211_CHAN_WIDTH_80: - if (!vht_cap->vht_supported) - return false; prohibited_flags |= IEEE80211_CHAN_NO_80MHZ; width = 80; + if (chandef->chan->band == NL80211_BAND_6GHZ) + break; + if (!vht_cap->vht_supported) + return false; break; case NL80211_CHAN_WIDTH_160: + prohibited_flags |= IEEE80211_CHAN_NO_160MHZ; + width = 160; + if (chandef->chan->band == NL80211_BAND_6GHZ) + break; if (!vht_cap->vht_supported) return false; cap = vht_cap->cap & IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_MASK; if (cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160MHZ && cap != IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) return false; - prohibited_flags |= IEEE80211_CHAN_NO_160MHZ; - width = 160; break; default: WARN_ON_ONCE(1); -- 2.26.2
