From: Ilan Peer <ilan.peer@xxxxxxxxx> [ Upstream commit bbf31e88df2f5da20ce613c340ce508d732046b3 ] When calculating the minimal channel width for channel context, the current operation Rx channel width of a station was used and not the overall channel width capability of the station, i.e., both for Tx and Rx. Fix ieee80211_get_sta_bw() to use the maximal channel width the station is capable. While at it make the function static. Signed-off-by: Ilan Peer <ilan.peer@xxxxxxxxx> Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx> Link: https://lore.kernel.org/r/iwlwifi.20201206145305.4387040b99a0.I74bcf19238f75a5960c4098b10e355123d933281@changeid Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> --- net/mac80211/chan.c | 10 ++++++---- net/mac80211/ieee80211_i.h | 1 - 2 files changed, 6 insertions(+), 5 deletions(-) diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index a0d901d8992ea..48b60b53ff3ff 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -190,11 +190,13 @@ ieee80211_find_reservation_chanctx(struct ieee80211_local *local, return NULL; } -enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta) +static enum nl80211_chan_width ieee80211_get_sta_bw(struct sta_info *sta) { - switch (sta->bandwidth) { + enum ieee80211_sta_rx_bandwidth width = ieee80211_sta_cap_rx_bw(sta); + + switch (width) { case IEEE80211_STA_RX_BW_20: - if (sta->ht_cap.ht_supported) + if (sta->sta.ht_cap.ht_supported) return NL80211_CHAN_WIDTH_20; else return NL80211_CHAN_WIDTH_20_NOHT; @@ -231,7 +233,7 @@ ieee80211_get_max_required_bw(struct ieee80211_sub_if_data *sdata) !(sta->sdata->bss && sta->sdata->bss == sdata->bss)) continue; - max_bw = max(max_bw, ieee80211_get_sta_bw(&sta->sta)); + max_bw = max(max_bw, ieee80211_get_sta_bw(sta)); } rcu_read_unlock(); diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 0b0de3030e0dc..15d9a61d20116 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -2102,7 +2102,6 @@ int ieee80211_check_combinations(struct ieee80211_sub_if_data *sdata, enum ieee80211_chanctx_mode chanmode, u8 radar_detect); int ieee80211_max_num_channels(struct ieee80211_local *local); -enum nl80211_chan_width ieee80211_get_sta_bw(struct ieee80211_sta *sta); void ieee80211_recalc_chanctx_chantype(struct ieee80211_local *local, struct ieee80211_chanctx *ctx); -- 2.27.0
