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Commit 6becb057 authored by Golan Ben Ami's avatar Golan Ben Ami Committed by Greg Kroah-Hartman
Browse files

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: default avatarGolan Ben Ami <golan.ben.ami@intel.com>
[reworded the commit message]
Signed-off-by: default avatarLuca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/20220301072926.153969-1-luca@coelho.fi


Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
Signed-off-by: default avatarSasha Levin <sashal@kernel.org>
parent 51969ebe

drivers/net/wireless/intel/iwlwifi/iwl-nvm-parse.c

+1 −2
Original line number Diff line number Diff line
@@ -519,8 +519,7 @@ static 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,

drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c

+0 −1
Original line number Diff line number Diff line
@@ -343,7 +343,6 @@ const static 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,

};



const static struct wiphy_iftype_ext_capab he_iftypes_ext_capa[] = {