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Date: Tue, 22 Dec 2020 21:17:56 -0500 From: Sasha Levin <sashal@...nel.org> To: linux-kernel@...r.kernel.org, stable@...r.kernel.org Cc: Johannes Berg <johannes.berg@...el.com>, Luca Coelho <luciano.coelho@...el.com>, Sasha Levin <sashal@...nel.org>, linux-wireless@...r.kernel.org, netdev@...r.kernel.org Subject: [PATCH AUTOSEL 5.4 113/130] iwlwifi: mvm: disconnect if channel switch delay is too long From: Johannes Berg <johannes.berg@...el.com> [ Upstream commit 87d9564e14cf5d05e4f1fa4eb7c55d798427f1dd ] If the channel switch delay that we would incur after the channel switch actually happens is longer than the quiet time we're willing to tolerate, disconnect as well. Signed-off-by: Johannes Berg <johannes.berg@...el.com> Signed-off-by: Luca Coelho <luciano.coelho@...el.com> Link: https://lore.kernel.org/r/iwlwifi.20201209231352.3bc3449922da.Ib0255deb67b2fc21317e274adcacb545bb1dc669@changeid Signed-off-by: Luca Coelho <luciano.coelho@...el.com> Signed-off-by: Sasha Levin <sashal@...nel.org> --- drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index daae86cd61140..366dc2d756bfb 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -4523,6 +4523,9 @@ static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw, break; case NL80211_IFTYPE_STATION: + if (chsw->delay > IWL_MAX_CSA_BLOCK_TX) + schedule_delayed_work(&mvmvif->csa_work, 0); + if (chsw->block_tx) { /* * In case of undetermined / long time with immediate -- 2.27.0
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