From 97507b38a4de63e55801bc91a107c2794159ccd6 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Wed, 22 Apr 2020 13:10:00 +0200
Subject: [PATCH] mt76: mt7615: fix tx status rate index calculation
A switch from one rate index to the next only happens when tx count from
the current slot is greater than MT7615_RATE_RETRY, which is 1 has to be
subtracted from count, instead of added to it.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
drivers/net/wireless/mediatek/mt76/mt7615/mac.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
index 89aed6d67de02f..e7a76032caff7f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1148,7 +1148,7 @@ static bool mt7615_fill_txs(struct mt7615_dev *dev, struct mt7615_sta *sta,
if (ampdu || (info->flags & IEEE80211_TX_CTL_AMPDU))
info->flags |= IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_CTL_AMPDU;
- first_idx = max_t(int, 0, last_idx - (count + 1) / MT7615_RATE_RETRY);
+ first_idx = max_t(int, 0, last_idx - (count - 1) / MT7615_RATE_RETRY);
if (fixed_rate && !probe) {
info->status.rates[0].count = count;
--
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