From cfdf6b19e750f7de8ae71a26932f63b52e3bf74c Mon Sep 17 00:00:00 2001
From: Benjamin Li <benl@squareup.com>
Date: Wed, 3 Nov 2021 18:05:48 -0700
Subject: [PATCH] wcn36xx: fix RX BD rate mapping for 5GHz legacy rates
Git-commit: cfdf6b19e750f7de8ae71a26932f63b52e3bf74c
Patch-mainline: v5.17-rc1
References: git-fixes
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>
Tested-by: Loic Poulain <loic.poulain@linaro.org>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20211104010548.1107405-3-benl@squareup.com
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 f0a9f069a92a..dd58dde8c836 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;
}
--
2.31.1