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wifi: iwlwifi: fail NIC access fast on dead NIC

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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>
Link: https://lore.kernel.org/r/20230921110726.f3d8498c5a60.I5d0c442a731ca4c00716910d215b4bcde6963a65@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2023-09-21 11:58:05 +03:00
parent 0c4aa7a12a
commit 6185e1e5b4
1 changed files with 3 additions and 0 deletions
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3
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
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@@ -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)