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| 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/scan.c | |
| parent | 607ca9ea3462719e256b60b24286f984e0d48c9b (diff) | |
| download | linux-2a333a0db24e37daa2e4eb9a542c07deda44ca5a.tar.gz linux-2a333a0db24e37daa2e4eb9a542c07deda44ca5a.tar.bz2 linux-2a333a0db24e37daa2e4eb9a542c07deda44ca5a.zip | |
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/scan.c')
| -rw-r--r-- | net/mac80211/scan.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 5db15996524f..d0c2e8012118 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -132,6 +132,12 @@ ieee80211_update_bss_from_elems(struct ieee80211_local *local, bss->beacon_rate = &sband->bitrates[rx_status->rate_idx]; } + + if (elems->vht_cap_elem) + bss->vht_cap_info = + le32_to_cpu(elems->vht_cap_elem->vht_cap_info); + else + bss->vht_cap_info = 0; } struct ieee80211_bss * |