linux-kernel - [PATCH 2/2] wcn36xx: fix RX BD rate mapping for 5GHz legacy rates

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Message-Id: <20211028223131.897548-2-benl@squareup.com>
Date:   Thu, 28 Oct 2021 15:31:30 -0700
From:   Benjamin Li <benl@...areup.com>
To:     Kalle Valo <kvalo@...eaurora.org>
Cc:     Bryan O'Donoghue <bryan.odonoghue@...aro.org>,
        Loic Poulain <loic.poulain@...aro.org>,
        linux-arm-msm@...r.kernel.org, Benjamin Li <benl@...areup.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>, wcn36xx@...ts.infradead.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 2/2] wcn36xx: fix RX BD rate mapping for 5GHz legacy rates

The linear mapping between the BD rate field and the driver's 5GHz
legacy rates table (wcn_5ghz_rates) does not only apply for the latter
four rates -- it applies to all eight rates.

Fixes: 6ea131acea98 ("wcn36xx: Fix warning due to bad rate_idx")
Signed-off-by: Benjamin Li <benl@...areup.com>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index f0a9f069a92a9..b4a36acdaca74 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -354,8 +354,7 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 		status.nss = 1;
 
 		if (status.band == NL80211_BAND_5GHZ &&
-		    status.encoding == RX_ENC_LEGACY &&
-		    status.rate_idx >= sband->n_bitrates) {
+		    status.encoding == RX_ENC_LEGACY) {
 			/* no dsss rates in 5Ghz rates table */
 			status.rate_idx -= 4;
 		}
-- 
2.25.1