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From e63410ac65e0ead2040bbd3927c116889edf87e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Sun, 24 Jun 2018 21:44:36 +0200
Subject: [PATCH] brcmfmac: detect firmware support for radiotap monitor frames
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

Depending on used build-time options some firmwares may already include
radiotap header in passed monitor frames. Add a new feature flag to
store info about it. It's needed for proper handling of received frames
before passing them up.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Signed-off-by: Arend van Spriel <arend.vanspriel@broadcom.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c | 1 +
 drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h | 4 +++-
 2 files changed, 4 insertions(+), 1 deletion(-)

--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.c
@@ -49,6 +49,7 @@ static const struct brcmf_feat_fwcap brc
 	{ BRCMF_FEAT_MCHAN, "mchan" },
 	{ BRCMF_FEAT_P2P, "p2p" },
 	{ BRCMF_FEAT_MONITOR, "monitor" },
+	{ BRCMF_FEAT_MONITOR_FMT_RADIOTAP, "rtap" },
 };
 
 #ifdef DEBUG
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/feature.h
@@ -34,6 +34,7 @@
  * GSCAN: enhanced scan offload feature.
  * FWSUP: Firmware supplicant.
  * MONITOR: firmware can pass monitor packets to host.
+ * MONITOR_FMT_RADIOTAP: firmware provides monitor packets with radiotap header
  */
 #define BRCMF_FEAT_LIST \
 	BRCMF_FEAT_DEF(MBSS) \
@@ -50,7 +51,8 @@
 	BRCMF_FEAT_DEF(MFP) \
 	BRCMF_FEAT_DEF(GSCAN) \
 	BRCMF_FEAT_DEF(FWSUP) \
-	BRCMF_FEAT_DEF(MONITOR)
+	BRCMF_FEAT_DEF(MONITOR) \
+	BRCMF_FEAT_DEF(MONITOR_FMT_RADIOTAP)
 
 /*
  * Quirks: