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wifi: iwlwifi: pcie: clear FW debug memory on init

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When we restart the firmware, we shouldn't keep old debug data
around. Since the "allocate" function might not reallocate the
memory block (it's only freed when we unbind from the device),
clear the memory to have a clean slate for debug data.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230613155501.73c32255a132.Ibd7101dcd285b01ee879fddfbf52c30d49ced3c0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2023-06-13 15:57:25 +03:00
parent c2a2f505e0
commit 583c58e3b1
1 changed files with 4 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
drivers/net/wireless/intel/iwlwifi/pcie/trans.c
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@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
/*
* Copyright (C) 2007-2015, 2018-2022 Intel Corporation
* Copyright (C) 2007-2015, 2018-2023 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
@ -171,8 +171,10 @@ static void iwl_pcie_alloc_fw_monitor_block(struct iwl_trans *trans,
u32 size = 0;
u8 power;
if (fw_mon->size)
if (fw_mon->size) {
memset(fw_mon->block, 0, fw_mon->size);
return;
}
for (power = max_power; power >= min_power; power--) {
size = BIT(power);
@ -215,9 +217,6 @@ void iwl_pcie_alloc_fw_monitor(struct iwl_trans *trans, u8 max_power)
max_power))
return;
if (trans->dbg.fw_mon.size)
return;
iwl_pcie_alloc_fw_monitor_block(trans, max_power, 11);
}