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Message-Id: <20191216174800.757144799@linuxfoundation.org>
Date:   Mon, 16 Dec 2019 18:48:32 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Larry Finger <Larry.Finger@...inger.net>,
        Kalle Valo <kvalo@...eaurora.org>
Subject: [PATCH 4.19 044/140] rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address

From: Larry Finger <Larry.Finger@...inger.net>

commit 0e531cc575c4e9e3dd52ad287b49d3c2dc74c810 upstream.

In commit 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for
new drivers"), a callback to get the RX buffer address was added to
the PCI driver. Unfortunately, driver rtl8192de was not modified
appropriately and the code runs into a WARN_ONCE() call. The use
of an incorrect array is also fixed.

Fixes: 38506ecefab9 ("rtlwifi: rtl_pci: Start modification for new drivers")
Cc: Stable <stable@...r.kernel.org> # 3.18+
Signed-off-by: Larry Finger <Larry.Finger@...inger.net>
Signed-off-by: Kalle Valo <kvalo@...eaurora.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c
+++ b/drivers/net/wireless/realtek/rtlwifi/rtl8192de/trx.c
@@ -840,13 +840,15 @@ u64 rtl92de_get_desc(struct ieee80211_hw
 			break;
 		}
 	} else {
-		struct rx_desc_92c *pdesc = (struct rx_desc_92c *)p_desc;
 		switch (desc_name) {
 		case HW_DESC_OWN:
-			ret = GET_RX_DESC_OWN(pdesc);
+			ret = GET_RX_DESC_OWN(p_desc);
 			break;
 		case HW_DESC_RXPKT_LEN:
-			ret = GET_RX_DESC_PKT_LEN(pdesc);
+			ret = GET_RX_DESC_PKT_LEN(p_desc);
+			break;
+		case HW_DESC_RXBUFF_ADDR:
+			ret = GET_RX_DESC_BUFF_ADDR(p_desc);
 			break;
 		default:
 			WARN_ONCE(true, "rtl8192de: ERR rxdesc :%d not processed\n",


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