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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Ilan Peer <ilan.peer@intel.com>,
	Luca Coelho <luciano.coelho@intel.com>,
	Johannes Berg <johannes.berg@intel.com>,
	Sasha Levin <sashal@kernel.org>,
	linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Subject: [PATCH AUTOSEL 5.4 123/130] mac80211: Fix calculation of minimal channel width
Date: Tue, 22 Dec 2020 21:18:06 -0500	[thread overview]
Message-ID: <20201223021813.2791612-123-sashal@kernel.org> (raw)
In-Reply-To: <20201223021813.2791612-1-sashal@kernel.org>

From: Ilan Peer <ilan.peer@intel.com>

[ 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@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20201206145305.4387040b99a0.I74bcf19238f75a5960c4098b10e355123d933281@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 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 9c94baaf693cb..aae4b36dd78d1 100644
--- a/net/mac80211/chan.c
+++ b/net/mac80211/chan.c
@@ -191,11 +191,13 @@ 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;
@@ -232,7 +234,7 @@ 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 7ad21d041f063..7445c12acf2c4 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -2217,7 +2217,6 @@ 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


  parent reply	other threads:[~2020-12-23  2:54 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20201223021813.2791612-1-sashal@kernel.org>
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 008/130] staging: wimax: depends on NET Sasha Levin
2020-12-23  7:29   ` Greg Kroah-Hartman
2020-12-23 14:15     ` Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 015/130] mac80211: don't overwrite QoS TID of injected frames Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 023/130] rsi: Fix TX EAPOL packet handling against iwlwifi AP Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 027/130] Bluetooth: hidp: use correct wait queue when removing ctrl_wait Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 029/130] net: skb_vlan_untag(): don't reset transport offset if set by GRO layer Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 031/130] mwifiex: pcie: skip cancel_work_sync() on reset failure path Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 034/130] net: ipconfig: Avoid spurious blank lines in boot log Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 036/130] r8169: use READ_ONCE in rtl_tx_slots_avail Sasha Levin
2020-12-23  2:16 ` [PATCH AUTOSEL 5.4 052/130] net: dsa: avoid potential use-after-free error Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 058/130] rxrpc: Don't leak the service-side session key to userspace Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 060/130] rtw88: coex: change the decode method from firmware Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 067/130] brcmsmac: ampdu: Check BA window size before checking block ack Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 068/130] i40e: report correct VF link speed when link state is set to enable Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 069/130] hv_netvsc: Validate number of allocated sub-channels Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 075/130] net/lapb: fix t1 timer handling for LAPB_STATE_0 Sasha Levin
2020-12-23 17:01   ` Xie He
2020-12-24  9:49     ` Xie He
2020-12-27 21:27       ` Sasha Levin
2021-01-06  7:33       ` Martin Schiller
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 081/130] bridge: switchdev: Notify about VLAN protocol changes Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 094/130] mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 097/130] rtlwifi: rtl8192de: fix ofdm power compensation Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 106/130] iwlwifi: avoid endless HW errors at assert time Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 107/130] iwlwifi: validate MPDU length against notification length Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 108/130] iwlwifi: pcie: validate RX descriptor length Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 109/130] iwlwifi: mvm: fix 22000 series driver NMI Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 110/130] iwlwifi: trans: consider firmware dead after errors Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 111/130] iwlwifi: mvm: validate firmware sync response size Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 112/130] iwlwifi: add an extra firmware state in the transport Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 113/130] iwlwifi: mvm: disconnect if channel switch delay is too long Sasha Levin
2020-12-23  2:17 ` [PATCH AUTOSEL 5.4 116/130] cfg80211: Update TSF and TSF BSSID for multi BSS Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 117/130] nl80211: always accept scan request with the duration set Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 118/130] cfg80211: Save the regulatory domain when setting custom regulatory Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 119/130] mac80211: disallow band-switch during CSA Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 120/130] mac80211: support Rx timestamp calculation for all preamble types Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 121/130] mac80211: use bitfield helpers for BA session action frames Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 122/130] mac80211: ignore country element TX power on 6 GHz Sasha Levin
2020-12-23  2:18 ` Sasha Levin [this message]
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 124/130] mac80211: don't filter out beacons once we start CSA Sasha Levin
2020-12-23  2:18 ` [PATCH AUTOSEL 5.4 125/130] mac80211: Update rate control on channel change Sasha Levin

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