From 71e9378bcfd2e9dd96c2bfbef23f3562946d30b3 Mon Sep 17 00:00:00 2001
From: Luca Coelho <luciano.coelho@intel.com>
Date: Fri, 24 Apr 2020 19:46:58 +0300
Subject: [PATCH] iwlwifi: mvm: initialize iwl_dev_tx_power_cmd to zero
Git-commit: 71e9378bcfd2e9dd96c2bfbef23f3562946d30b3
Patch-mainline: v5.8-rc1
References: jsc#SLE-13430
If the REDUCE_TX_POWER_CMD version is v4 or v5, we are not
initializing some values before sending to the FW, which causes SAR
not to work properly. Solve this by initializing the struct in the
declaration.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Link: https://lore.kernel.org/r/iwlwifi.20200424194456.0dc957a264ff.I43cfd72d539c1287ccaaa454e95c673dac38214f@changeid
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/intel/iwlwifi/mvm/fw.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 164fc9e98c86..60246a8eed50 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -787,13 +787,12 @@ int iwl_mvm_sar_select_profile(struct iwl_mvm *mvm, int prof_a, int prof_b)
union {
struct iwl_dev_tx_power_cmd v5;
struct iwl_dev_tx_power_cmd_v4 v4;
- } cmd;
-
+ } cmd = {
+ .v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS),
+ };
int ret;
u16 len = 0;
- cmd.v5.v3.set_mode = cpu_to_le32(IWL_TX_POWER_MODE_SET_CHAINS);
-
if (fw_has_api(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_API_REDUCE_TX_POWER))
len = sizeof(cmd.v5);
--
2.16.4