diff mbox series

[10/13] wifi: iwlwifi: mvm: pause TCM when the firmware is stopped

Message ID 20240825191257.5abe71ca1b6b.I97a968cb8be1f24f94652d9b110ecbf6af73f89e@changeid (mailing list archive)
State Accepted
Delegated to: Johannes Berg
Headers show
Series wifi: iwlwifi: fixes - 25-08-2024 | expand

Commit Message

Miri Korenblit Aug. 25, 2024, 4:17 p.m. UTC 
From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

Not doing so will make us send a host command to the transport while the
firmware is not alive, which will trigger a WARNING.

bad state = 0
WARNING: CPU: 2 PID: 17434 at drivers/net/wireless/intel/iwlwifi/iwl-trans.c:115 iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi]
RIP: 0010:iwl_trans_send_cmd+0x1cb/0x1e0 [iwlwifi]
Call Trace:
 <TASK>
 iwl_mvm_send_cmd+0x40/0xc0 [iwlmvm]
 iwl_mvm_config_scan+0x198/0x260 [iwlmvm]
 iwl_mvm_recalc_tcm+0x730/0x11d0 [iwlmvm]
 iwl_mvm_tcm_work+0x1d/0x30 [iwlmvm]
 process_one_work+0x29e/0x640
 worker_thread+0x2df/0x690
 ? rescuer_thread+0x540/0x540
 kthread+0x192/0x1e0
 ? set_kthread_struct+0x90/0x90
 ret_from_fork+0x22/0x30

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index d809742528af..a8590c453ab3 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -1513,6 +1513,8 @@  void iwl_mvm_stop_device(struct iwl_mvm *mvm)
 
 	clear_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status);
 
+	iwl_mvm_pause_tcm(mvm, false);
+
 	iwl_fw_dbg_stop_sync(&mvm->fwrt);
 	iwl_trans_stop_device(mvm->trans);
 	iwl_free_fw_paging(&mvm->fwrt);