iwlwifi: don't advertise TWT support

[ Upstream commit 1db5fcbba2631277b78d7f8aff99c9607d29f6d8 ]

Some APs misbehave when TWT is used and cause our firmware to crash.
We don't know a reasonable way to detect and work around this problem
in the FW yet.  To prevent these crashes, disable TWT in the driver by
stopping to advertise TWT support.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=215523
Signed-off-by: Golan Ben Ami <golan.ben.ami@intel.com>
[reworded the commit message]
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20220301072926.153969-1-luca@coelho.fi
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
index f470f9aea50f57451c77c61b7ffd5d6b2f0b545e..c97798f6290aef6a9cd63fee68be95bc74561602 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
+++ b/drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c
@@ -552,8 +552,7 @@ static const struct ieee80211_sband_iftype_data iwl_he_capa[] = {
                        .has_he = true,
                        .he_cap_elem = {
                                .mac_cap_info[0] =
-                                       IEEE80211_HE_MAC_CAP0_HTC_HE |
-                                       IEEE80211_HE_MAC_CAP0_TWT_REQ,
+                                       IEEE80211_HE_MAC_CAP0_HTC_HE,
                                .mac_cap_info[1] =
                                        IEEE80211_HE_MAC_CAP1_TF_MAC_PAD_DUR_16US |
                                        IEEE80211_HE_MAC_CAP1_MULTI_TID_AGG_RX_QOS_8,

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
index cde3d2ce0b85573b038c910956cdbc6f944a50be..a65024fc96dd60461c946eae9da42ea1b9521977 100644 (file)
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -223,7 +223,6 @@ static const u8 he_if_types_ext_capa_sta[] = {
         [0] = WLAN_EXT_CAPA1_EXT_CHANNEL_SWITCHING,
         [2] = WLAN_EXT_CAPA3_MULTI_BSSID_SUPPORT,
         [7] = WLAN_EXT_CAPA8_OPMODE_NOTIF,
-        [9] = WLAN_EXT_CAPA10_TWT_REQUESTER_SUPPORT,
 };
 
 static const struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = {