From 4b85315758a57b005008484f0eb72d3b092315b4 Mon Sep 17 00:00:00 2001 From: Alexander Bondar Date: Thu, 2 May 2013 16:34:48 +0300 Subject: [PATCH] iwlwifi: mvm: Prevent setting assoc flag in MAC_CONTEXT_CMD commit ba283927268d45184c17c37ff78d427e59026229 upstream. In the normal flow first MAC_CONTEXT_CMD for particular interface is never sent while associated. The exception is fw restart flow when resuming from suspend when WoWLAN is enabled. In this case successive "add" and "modify" MAC_CONTEXT_CMD commands may be sent with assoc flag set what cause FW mal functioning. To prevent this never set assoc flag in MAC_CONTEXT_CMD with action "add". Signed-off-by: Alexander Bondar Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: Greg Kroah-Hartman --- drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c index 341dbc0237ea7..bf76b17b257bd 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c @@ -586,10 +586,12 @@ static int iwl_mvm_mac_ctxt_send_cmd(struct iwl_mvm *mvm, */ static void iwl_mvm_mac_ctxt_cmd_fill_sta(struct iwl_mvm *mvm, struct ieee80211_vif *vif, - struct iwl_mac_data_sta *ctxt_sta) + struct iwl_mac_data_sta *ctxt_sta, + bool force_assoc_off) { /* We need the dtim_period to set the MAC as associated */ - if (vif->bss_conf.assoc && vif->bss_conf.dtim_period) { + if (vif->bss_conf.assoc && vif->bss_conf.dtim_period && + !force_assoc_off) { u32 dtim_offs; /* @@ -652,7 +654,8 @@ static int iwl_mvm_mac_ctxt_cmd_station(struct iwl_mvm *mvm, iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); /* Fill the data specific for station mode */ - iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta); + iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.sta, + action == FW_CTXT_ACTION_ADD); return iwl_mvm_mac_ctxt_send_cmd(mvm, &cmd); } @@ -669,7 +672,8 @@ static int iwl_mvm_mac_ctxt_cmd_p2p_client(struct iwl_mvm *mvm, iwl_mvm_mac_ctxt_cmd_common(mvm, vif, &cmd, action); /* Fill the data specific for station mode */ - iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta); + iwl_mvm_mac_ctxt_cmd_fill_sta(mvm, vif, &cmd.p2p_sta.sta, + action == FW_CTXT_ACTION_ADD); cmd.p2p_sta.ctwin = cpu_to_le32(vif->bss_conf.p2p_ctwindow); -- 2.50.1