iwlwifi: mvm: init card correctly on ctkill exit check

During the CT-kill exit flow, the card is powered up and partially
initialized to check if the temperature is already low enough.
Unfortunately the init bails early because the CT-kill flag is set.
Make the code bail early only for HW RF-kill, as was intended by the
author. CT-kill is self-imposed and is not really RF-kill.

Fixes: 31b8b343e019 ("iwlwifi: fix RFkill while calibrating")
Cc: <stable@vger.kernel.org> [3.18+]
Signed-off-by: Arik Nemtsov <arikx.nemtsov@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/mvm/fw.c b/drivers/net/wireless/iwlwifi/mvm/fw.c
index 4a0ce83..5c7f7cc 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/iwlwifi/mvm/fw.c
@@ -703,7 +703,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
         * abort after reading the nvm in case RF Kill is on, we will complete
         * the init seq later when RF kill will switch to off
         */
-       if (iwl_mvm_is_radio_killed(mvm)) {
+       if (iwl_mvm_is_radio_hw_killed(mvm)) {
                IWL_DEBUG_RF_KILL(mvm,
                                  "jump over all phy activities due to RF kill\n");
                iwl_remove_notification(&mvm->notif_wait, &calib_wait);
@@ -736,7 +736,7 @@ int iwl_run_init_mvm_ucode(struct iwl_mvm *mvm, bool read_nvm)
        ret = iwl_wait_notification(&mvm->notif_wait, &calib_wait,
                        MVM_UCODE_CALIB_TIMEOUT);
 
-       if (ret && iwl_mvm_is_radio_killed(mvm)) {
+       if (ret && iwl_mvm_is_radio_hw_killed(mvm)) {
                IWL_DEBUG_RF_KILL(mvm, "RFKILL while calibrating.\n");
                ret = 1;
        }

diff --git a/drivers/net/wireless/iwlwifi/mvm/mvm.h b/drivers/net/wireless/iwlwifi/mvm/mvm.h
index b95a07e..c754051 100644 (file)
--- a/drivers/net/wireless/iwlwifi/mvm/mvm.h
+++ b/drivers/net/wireless/iwlwifi/mvm/mvm.h
@@ -860,6 +860,11 @@ static inline bool iwl_mvm_is_radio_killed(struct iwl_mvm *mvm)
               test_bit(IWL_MVM_STATUS_HW_CTKILL, &mvm->status);
 }
 
+static inline bool iwl_mvm_is_radio_hw_killed(struct iwl_mvm *mvm)
+{
+       return test_bit(IWL_MVM_STATUS_HW_RFKILL, &mvm->status);
+}
+
 /* Must be called with rcu_read_lock() held and it can only be
  * released when mvmsta is not needed anymore.
  */