From c3a510e2b53785df31d882a773c4c0780b4c825f Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 26 Aug 2022 20:23:29 +0200
Subject: [PATCH] wifi: mt76: fix reading current per-tid starting sequence number for aggregation
Git-commit: c3a510e2b53785df31d882a773c4c0780b4c825f
Patch-mainline: v6.0-rc7
References: git-fixes
The code was accidentally shifting register values down by tid % 32 instead of
(tid * field_size) % 32.
Cc: stable@vger.kernel.org
Fixes: a28bef561a5c ("mt76: mt7615: re-enable offloading of sequence number assignment")
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220826182329.18155-1-nbd@nbd.name
Acked-by: Takashi Iwai <tiwai@suse.de>
---
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 ad6c7d632eed..d6aae60c440d 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/mac.c
@@ -1088,7 +1088,7 @@ u32 mt7615_mac_get_sta_tid_sn(struct mt7615_dev *dev, int wcid, u8 tid)
offset %= 32;
val = mt76_rr(dev, addr);
- val >>= (tid % 32);
+ val >>= offset;
if (offset > 20) {
addr += 4;
--
2.35.3