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From 073a435d55a62813d0a871abcb1ae904b5726098 Mon Sep 17 00:00:00 2001
From: Karthik Ananthapadmanabha <karthida@marvell.com>
Date: Fri, 29 Sep 2017 16:23:10 +0530
Subject: [PATCH] mwifiex: Random MAC address during scanning
Git-commit: 073a435d55a62813d0a871abcb1ae904b5726098
Patch-mainline: v4.15-rc1
References: FATE#326294

Driver will advertise RANDOM_MAC support only if the device
supports this feature.

Signed-off-by: Karthik Ananthapadmanabha <karthida@marvell.com>
Signed-off-by: Ganapathi Bhat <gbhat@marvell.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/net/wireless/marvell/mwifiex/cfg80211.c | 10 ++++++----
 drivers/net/wireless/marvell/mwifiex/fw.h       |  1 +
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
index ac01af4d7bfb..cc7d777eb26c 100644
--- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c
+++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c
@@ -4305,10 +4305,12 @@ int mwifiex_register_cfg80211(struct mwifiex_adapter *adapter)
 	wiphy->features |= NL80211_FEATURE_HT_IBSS |
 			   NL80211_FEATURE_INACTIVITY_TIMER |
 			   NL80211_FEATURE_LOW_PRIORITY_SCAN |
-			   NL80211_FEATURE_NEED_OBSS_SCAN |
-			   NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
-			   NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
-			   NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
+			   NL80211_FEATURE_NEED_OBSS_SCAN;
+
+	if (ISSUPP_RANDOM_MAC(adapter->fw_cap_info))
+		wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR |
+				   NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
+				   NL80211_FEATURE_ND_RANDOM_MAC_ADDR;
 
 	if (ISSUPP_TDLS_ENABLED(adapter->fw_cap_info))
 		wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h
index 9e75522d248a..6b765f3f37fd 100644
--- a/drivers/net/wireless/marvell/mwifiex/fw.h
+++ b/drivers/net/wireless/marvell/mwifiex/fw.h
@@ -238,6 +238,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER {
 #define ISSUPP_DRCS_ENABLED(FwCapInfo) (FwCapInfo & BIT(15))
 #define ISSUPP_SDIO_SPA_ENABLED(FwCapInfo) (FwCapInfo & BIT(16))
 #define ISSUPP_ADHOC_ENABLED(FwCapInfo) (FwCapInfo & BIT(25))
+#define ISSUPP_RANDOM_MAC(FwCapInfo) (FwCapInfo & BIT(27))
 
 #define MWIFIEX_DEF_HT_CAP	(IEEE80211_HT_CAP_DSSSCCK40 | \
 				 (1 << IEEE80211_HT_CAP_RX_STBC_SHIFT) | \
-- 
2.19.2