Thread (17 messages) 17 messages, 2 authors, 2021-01-25
STALE1949d LANDED

[PATCH for v5.11 01/12] iwlwifi: mvm: skip power command when unbinding vif during CSA

From: Luca Coelho <hidden>
Date: 2021-01-15 11:06:51
Subsystem: intel wireless wifi link (iwlwifi), the rest · Maintainers: Miri Korenblit, Linus Torvalds

From: Sara Sharon <redacted>

In the new CSA flow, we remain associated during CSA, but
still do a unbind-bind to the vif. However, sending the power
command right after when vif is unbound but still associated
causes FW to assert (0x3400) since it cannot tell the LMAC id.

Just skip this command, we will send it again in a bit, when
assigning the new context.

Signed-off-by: Sara Sharon <redacted>
Signed-off-by: Luca Coelho <redacted>
---
 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 da32937ba9a7..43ff0407916a 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
@@ -4194,6 +4194,9 @@ static void __iwl_mvm_unassign_vif_chanctx(struct iwl_mvm *mvm,
 	iwl_mvm_binding_remove_vif(mvm, vif);
 
 out:
+	if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD) &&
+	    switching_chanctx)
+		return;
 	mvmvif->phy_ctxt = NULL;
 	iwl_mvm_power_update_mac(mvm);
 }
-- 
2.29.2
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