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iwlwifi: avoid allocating memory for region with disabled domain 

In iwl_fw_ini_get_trigger_len the driver allocates space for memory
regions regardless of their domain and in iwl_fw_ini_dump_trigger the
driver aborts trigger collection of disabled domain. This diff causes
unneeded memory allocation and traling zeros in the dump file.

Solve this behavior by enforcing domain checking in
iwl_fw_ini_get_trigger_len

Signed-off-by: Shahar S Matityahu <shahar.s.matityahu@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Shahar S Matityahu 2019-04-08 16:59:53 +03:00 committed by Luca Coelho
parent 391481ad26
commit 0aade8f484
1 changed files with 4 additions and 0 deletions
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4
drivers/net/wireless/intel/iwlwifi/fw/dbg.c
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@ -1751,6 +1751,10 @@ static int iwl_fw_ini_get_trigger_len(struct iwl_fw_runtime *fwrt,
continue; continue;
} }
/* currently the driver supports always on domain only */
if (le32_to_cpu(reg->domain) != IWL_FW_INI_DBG_DOMAIN_ALWAYS_ON)
continue;
switch (le32_to_cpu(reg->region_type)) { switch (le32_to_cpu(reg->region_type)) {
case IWL_FW_INI_REGION_DEVICE_MEMORY: case IWL_FW_INI_REGION_DEVICE_MEMORY:
case IWL_FW_INI_REGION_PERIPHERY_MAC: case IWL_FW_INI_REGION_PERIPHERY_MAC: