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From 4b37b55e8a1c275e1627aa29b195db94b0cac963 Mon Sep 17 00:00:00 2001
From: Eugene Syromiatnikov <esyr@redhat.com>
Date: Thu, 5 Sep 2019 18:11:20 +0200
Subject: [PATCH 07/43] Revert "iwlwifi: mvm: report all NO_DATA events to
 mac80211"

This reverts commit d47cdb884a9901a137edaa66e9866c98048e909c.
---
 drivers/net/wireless/intel/iwlwifi/mvm/mvm.h  |  8 +++----
 drivers/net/wireless/intel/iwlwifi/mvm/ops.c  |  6 +++---
 drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c | 31 ++++++++++-----------------
 3 files changed, 18 insertions(+), 27 deletions(-)

Index: src/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h
===================================================================
--- src.orig/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h	2019-09-05 14:40:03.194476607 +0200
+++ src/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h	2019-09-06 01:25:41.666340915 +0200
@@ -8,7 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018        Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1606,8 +1606,8 @@
 			struct iwl_rx_cmd_buffer *rxb);
 void iwl_mvm_rx_mpdu_mq(struct iwl_mvm *mvm, struct napi_struct *napi,
 			struct iwl_rx_cmd_buffer *rxb, int queue);
-void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
-				struct iwl_rx_cmd_buffer *rxb, int queue);
+void iwl_mvm_rx_monitor_ndp(struct iwl_mvm *mvm, struct napi_struct *napi,
+			    struct iwl_rx_cmd_buffer *rxb, int queue);
 void iwl_mvm_rx_frame_release(struct iwl_mvm *mvm, struct napi_struct *napi,
 			      struct iwl_rx_cmd_buffer *rxb, int queue);
 int iwl_mvm_notify_rx_queue(struct iwl_mvm *mvm, u32 rxq_mask,
Index: src/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
===================================================================
--- src.orig/drivers/net/wireless/intel/iwlwifi/mvm/ops.c	2019-09-05 14:40:03.194476607 +0200
+++ src/drivers/net/wireless/intel/iwlwifi/mvm/ops.c	2019-09-06 01:25:41.666340915 +0200
@@ -8,7 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018        Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2016 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018        Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1085,7 +1085,7 @@
 	else if (cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE))
 		iwl_mvm_rx_frame_release(mvm, napi, rxb, 0);
 	else if (cmd == WIDE_ID(DATA_PATH_GROUP, RX_NO_DATA_NOTIF))
-		iwl_mvm_rx_monitor_no_data(mvm, napi, rxb, 0);
+		iwl_mvm_rx_monitor_ndp(mvm, napi, rxb, 0);
 	else
 		iwl_mvm_rx_common(mvm, rxb, pkt);
 }
Index: src/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c
===================================================================
--- src.orig/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c	2019-09-06 01:25:41.483343249 +0200
+++ src/drivers/net/wireless/intel/iwlwifi/mvm/rxmq.c	2019-09-06 01:25:41.666340915 +0200
@@ -8,7 +8,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 Intel Corporation
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
  * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  * Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
  * Copyright(c) 2015 - 2017 Intel Deutschland GmbH
- * Copyright(c) 2018 - 2019 Intel Corporation
+ * Copyright(c) 2018 Intel Corporation
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1686,8 +1686,8 @@
 	rcu_read_unlock();
 }
 
-void iwl_mvm_rx_monitor_no_data(struct iwl_mvm *mvm, struct napi_struct *napi,
-				struct iwl_rx_cmd_buffer *rxb, int queue)
+void iwl_mvm_rx_monitor_ndp(struct iwl_mvm *mvm, struct napi_struct *napi,
+			    struct iwl_rx_cmd_buffer *rxb, int queue)
 {
 	struct ieee80211_rx_status *rx_status;
 	struct iwl_rx_packet *pkt = rxb_addr(rxb);
@@ -1708,6 +1708,10 @@
 	if (unlikely(test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)))
 		return;
 
+	/* Currently only NDP type is supported */
+	if (info_type != RX_NO_DATA_INFO_TYPE_NDP)
+		return;
+
 	energy_a = (rssi & RX_NO_DATA_CHAIN_A_MSK) >> RX_NO_DATA_CHAIN_A_POS;
 	energy_b = (rssi & RX_NO_DATA_CHAIN_B_MSK) >> RX_NO_DATA_CHAIN_B_POS;
 	channel = (rssi & RX_NO_DATA_CHANNEL_MSK) >> RX_NO_DATA_CHANNEL_POS;
@@ -1729,22 +1733,9 @@
 
 	/* 0-length PSDU */
 	rx_status->flag |= RX_FLAG_NO_PSDU;
-
-	switch (info_type) {
-	case RX_NO_DATA_INFO_TYPE_NDP:
-		rx_status->zero_length_psdu_type =
-			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING;
-		break;
-	case RX_NO_DATA_INFO_TYPE_MU_UNMATCHED:
-	case RX_NO_DATA_INFO_TYPE_HE_TB_UNMATCHED:
-		rx_status->zero_length_psdu_type =
-			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_NOT_CAPTURED;
-		break;
-	default:
-		rx_status->zero_length_psdu_type =
-			IEEE80211_RADIOTAP_ZERO_LEN_PSDU_VENDOR;
-		break;
-	}
+	/* currently this is the only type for which we get this notif */
+	rx_status->zero_length_psdu_type =
+		IEEE80211_RADIOTAP_ZERO_LEN_PSDU_SOUNDING;
 
 	/* This may be overridden by iwl_mvm_rx_he() to HE_RU */
 	switch (rate_n_flags & RATE_MCS_CHAN_WIDTH_MSK) {