diff options
| author | Johannes Berg <johannes.berg@intel.com> | 2020-05-28 21:34:35 +0200 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-05-31 11:26:50 +0200 |
| commit | 2a333a0db24e37daa2e4eb9a542c07deda44ca5a (patch) | |
| tree | 9a7540d90e9ab588e4574b6acf78083a6efdc029 /net/mac80211/spectmgmt.c | |
| parent | 607ca9ea3462719e256b60b24286f984e0d48c9b (diff) | |
mac80211: avoid using ext NSS high BW if not supported
If the AP advertises inconsistent data, namely it has CCFS1 or CCFS2,
but doesn't advertise support for 160/80+80 bandwidth or "Extended NSS
BW Support", then we cannot use any MCSes in the the higher bandwidth.
Thus, avoid connecting with higher bandwidth since it's less efficient
that way.
Link: https://lore.kernel.org/r/20200528213443.0e55d40c3ccc.I6fd0b4708ebd087e5e46466c3e91f6efbcbef668@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/mac80211/spectmgmt.c')
| -rw-r--r-- | net/mac80211/spectmgmt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/mac80211/spectmgmt.c b/net/mac80211/spectmgmt.c index 5fe2b645912f..ae1cb2c68722 100644 --- a/net/mac80211/spectmgmt.c +++ b/net/mac80211/spectmgmt.c @@ -9,7 +9,7 @@ * Copyright 2007, Michael Wu <flamingice@sourmilk.net> * Copyright 2007-2008, Intel Corporation * Copyright 2008, Johannes Berg <johannes@sipsolutions.net> - * Copyright (C) 2018 Intel Corporation + * Copyright (C) 2018, 2020 Intel Corporation */ #include <linux/ieee80211.h> @@ -22,6 +22,7 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, struct ieee802_11_elems *elems, enum nl80211_band current_band, + u32 vht_cap_info, u32 sta_flags, u8 *bssid, struct ieee80211_csa_ie *csa_ie) { @@ -150,6 +151,7 @@ int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata, /* ignore if parsing fails */ if (!ieee80211_chandef_vht_oper(&sdata->local->hw, + vht_cap_info, &vht_oper, &ht_oper, &new_vht_chandef)) new_vht_chandef.chan = NULL; |