From e8a583f9afa882cf9b2c6122ba16921c0d6a9cba Mon Sep 17 00:00:00 2001
From: Luca Coelho <luciano.coelho@intel.com>
Date: Wed, 7 Mar 2018 18:46:01 +0200
Subject: [PATCH] iwlwifi: d3: disable dbg recording before entering D3
Git-commit: e8a583f9afa882cf9b2c6122ba16921c0d6a9cba
Patch-mainline: v4.19-rc1
References: FATE#326294
Currently the firmware does not stop recording debugging data when
entering D3 and this causes trouble (e.g. sporadic wake ups).
Fix that by stopping dbg recording when suspending.
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/intel/iwlwifi/mvm/d3.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
index 3fcf489f3120..79bdae994822 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/d3.c
@@ -1037,6 +1037,13 @@ static int __iwl_mvm_suspend(struct ieee80211_hw *hw,
cpu_to_le32(IWL_WAKEUP_D3_CONFIG_FW_ERROR);
#endif
+ /*
+ * TODO: this is needed because the firmware is not stopping
+ * the recording automatically before entering D3. This can
+ * be removed once the FW starts doing that.
+ */
+ iwl_fw_dbg_stop_recording(&mvm->fwrt);
+
/* must be last -- this switches firmware state */
ret = iwl_mvm_send_cmd(mvm, &d3_cfg_cmd);
if (ret)
--
2.19.2