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From: Martin Kaistra <martin.kaistra@linutronix.de>
To: linux-wireless@vger.kernel.org
Cc: Jes Sorensen <Jes.Sorensen@gmail.com>,
	Ping-Ke Shih <pkshih@realtek.com>,
	Bitterblue Smith <rtl8821cerfe2@gmail.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Subject: [PATCH v2 1/2] Revert "wifi: rtl8xxxu: enable MFP support"
Date: Thu, 18 Apr 2024 09:18:12 +0200
Message-Id: <20240418071813.1883174-2-martin.kaistra@linutronix.de>
In-Reply-To: <20240418071813.1883174-1-martin.kaistra@linutronix.de>
References: <20240418071813.1883174-1-martin.kaistra@linutronix.de>
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This reverts commit 77f5924fc41c243e907c80ce2576902d3a9cb336.

There is a more elegant solution to check for not decrypted frames,
which is to check the security flag in the RX descriptor.

Revert commit 77f5924fc41c ("wifi: rtl8xxxu: enable MFP support") in
favor of this to be able to send it to stable.

Signed-off-by: Martin Kaistra <martin.kaistra@linutronix.de>
---
 drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c | 9 ++-------
 1 file changed, 2 insertions(+), 7 deletions(-)

diff --git a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
index 870bd952f5902..4a49f8f9d80f2 100644
--- a/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
+++ b/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c
@@ -6473,9 +6473,7 @@ int rtl8xxxu_parse_rxdesc16(struct rtl8xxxu_priv *priv, struct sk_buff *skb)
 			rx_status->mactime = rx_desc->tsfl;
 			rx_status->flag |= RX_FLAG_MACTIME_START;
 
-			if (!rx_desc->swdec &&
-			    !(_ieee80211_is_robust_mgmt_frame(hdr) &&
-			      ieee80211_has_protected(hdr->frame_control)))
+			if (!rx_desc->swdec)
 				rx_status->flag |= RX_FLAG_DECRYPTED;
 			if (rx_desc->crc32)
 				rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
@@ -6580,9 +6578,7 @@ int rtl8xxxu_parse_rxdesc24(struct rtl8xxxu_priv *priv, struct sk_buff *skb)
 			rx_status->mactime = rx_desc->tsfl;
 			rx_status->flag |= RX_FLAG_MACTIME_START;
 
-			if (!rx_desc->swdec &&
-			    !(_ieee80211_is_robust_mgmt_frame(hdr) &&
-			      ieee80211_has_protected(hdr->frame_control)))
+			if (!rx_desc->swdec)
 				rx_status->flag |= RX_FLAG_DECRYPTED;
 			if (rx_desc->crc32)
 				rx_status->flag |= RX_FLAG_FAILED_FCS_CRC;
@@ -8002,7 +7998,6 @@ static int rtl8xxxu_probe(struct usb_interface *interface,
 	ieee80211_hw_set(hw, HAS_RATE_CONTROL);
 	ieee80211_hw_set(hw, SUPPORT_FAST_XMIT);
 	ieee80211_hw_set(hw, AMPDU_AGGREGATION);
-	ieee80211_hw_set(hw, MFP_CAPABLE);
 
 	wiphy_ext_feature_set(hw->wiphy, NL80211_EXT_FEATURE_CQM_RSSI_LIST);
 
-- 
2.39.2