diff mbox series

[07/12] wifi: iwlwifi: fail NIC access fast on dead NIC

Message ID 20230921110726.f3d8498c5a60.I5d0c442a731ca4c00716910d215b4bcde6963a65@changeid
State New
Headers show
Series wifi: iwlwifi: updates - 2023-09-21 | expand

Commit Message

Greenman, Gregory Sept. 21, 2023, 8:58 a.m. UTC 
From: Johannes Berg <johannes.berg@intel.com>

If the NIC is already dead, as detected by the transport then
there's no point to try to grab the NIC access and time out,
we can just fail fast. This may speed up recovery.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
---
 drivers/net/wireless/intel/iwlwifi/pcie/trans.c | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
index 5020ae4493c6..385e152f04fe 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/trans.c
@@ -2177,6 +2177,9 @@  bool __iwl_trans_pcie_grab_nic_access(struct iwl_trans *trans)
 		   CSR_GP_CNTRL_REG_FLAG_GOING_TO_SLEEP;
 	u32 poll = CSR_GP_CNTRL_REG_VAL_MAC_ACCESS_EN;
 
+	if (test_bit(STATUS_TRANS_DEAD, &trans->status))
+		return false;
+
 	spin_lock(&trans_pcie->reg_lock);
 
 	if (trans_pcie->cmd_hold_nic_awake)