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From: Benjamin Li <benl@squareup.com>
To: Kalle Valo <kvalo@codeaurora.org>
Cc: Bryan O'Donoghue <bryan.odonoghue@linaro.org>,
	Loic Poulain <loic.poulain@linaro.org>,
	linux-arm-msm@vger.kernel.org, Benjamin Li <benl@squareup.com>,
	"David S. Miller" <davem@davemloft.net>,
	Jakub Kicinski <kuba@kernel.org>,
	wcn36xx@lists.infradead.org, linux-wireless@vger.kernel.org,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v3 2/2] wcn36xx: fix RX BD rate mapping for 5GHz legacy rates
Date: Wed,  3 Nov 2021 18:05:48 -0700	[thread overview]
Message-ID: <20211104010548.1107405-3-benl@squareup.com> (raw)
In-Reply-To: <20211104010548.1107405-1-benl@squareup.com>

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@squareup.com>
---
 drivers/net/wireless/ath/wcn36xx/txrx.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/wcn36xx/txrx.c b/drivers/net/wireless/ath/wcn36xx/txrx.c
index f0a9f069a92a9..dd58dde8c8363 100644
--- a/drivers/net/wireless/ath/wcn36xx/txrx.c
+++ b/drivers/net/wireless/ath/wcn36xx/txrx.c
@@ -272,7 +272,6 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 	const struct wcn36xx_rate *rate;
 	struct ieee80211_hdr *hdr;
 	struct wcn36xx_rx_bd *bd;
-	struct ieee80211_supported_band *sband;
 	u16 fc, sn;
 
 	/*
@@ -350,12 +349,11 @@ int wcn36xx_rx_skb(struct wcn36xx *wcn, struct sk_buff *skb)
 		status.enc_flags = rate->encoding_flags;
 		status.bw = rate->bw;
 		status.rate_idx = rate->mcs_or_legacy_index;
-		sband = wcn->hw->wiphy->bands[status.band];
 		status.nss = 1;
 
 		if (status.band == NL80211_BAND_5GHZ &&
 		    status.encoding == RX_ENC_LEGACY &&
-		    status.rate_idx >= sband->n_bitrates) {
+		    status.rate_idx >= 4) {
 			/* no dsss rates in 5Ghz rates table */
 			status.rate_idx -= 4;
 		}
-- 
2.25.1


  parent reply	other threads:[~2021-11-04  1:06 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-04  1:05 [PATCH v3 0/2] wcn36xx: populate band before determining rate on RX Benjamin Li
2021-11-04  1:05 ` [PATCH v3 1/2] " Benjamin Li
2021-11-04 18:57   ` Loic Poulain
2021-11-08 13:23   ` Kalle Valo
2021-11-04  1:05 ` Benjamin Li [this message]
2021-11-04 18:57   ` [PATCH v3 2/2] wcn36xx: fix RX BD rate mapping for 5GHz legacy rates Loic Poulain

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