From 820e4da1746f999c91fbfcb320ac91c6a17b9777 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 12 Jul 2019 08:19:35 +0200
Subject: [PATCH] mt76: mt7603: fix invalid fallback rates
Git-commit: 820e4da1746f999c91fbfcb320ac91c6a17b9777
Patch-mainline: v5.4-rc1
References: jsc#SLE-13430
Only decrement the rate index on duplicate rates if it is not already 0
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/net/wireless/mediatek/mt76/mt7603/mac.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
index 40db1cbc832d..81fb4276e742 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7603/mac.c
@@ -639,6 +639,9 @@ void mt7603_wtbl_set_rates(struct mt7603_dev *dev, struct mt7603_sta *sta,
IEEE80211_TX_RC_40_MHZ_WIDTH)
continue;
+ if (!rates[i].idx)
+ continue;
+
rates[i].idx--;
}
--
2.16.4