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[PATCH 04/12] iwlwifi: mvm: avoid FW restart while shutting down

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From: Johannes Berg <johannes.berg@xxxxxxxxx>

If the firmware crashes while we're already shutting down
the system, there isn't much we can do since the shutdown
process is continuing and we wanted to do that. Don't do
a FW restart, with the implied debug collection, in this
case.

Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
Signed-off-by: Luca Coelho <luciano.coelho@xxxxxxxxx>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 20e8d343a950..1f43079f02af 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1466,6 +1466,14 @@ static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode)
 	if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
 		iwl_mvm_dump_nic_error_log(mvm);
 
+	/*
+	 * If the firmware crashes while we're already considering it
+	 * to be dead then don't ask for a restart, that cannot do
+	 * anything useful anyway.
+	 */
+	if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
+		return;
+
 	iwl_mvm_nic_restart(mvm, true);
 }
 
-- 
2.32.0




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