FAILED: patch "[PATCH] mt76: fix corrupted software generated tx CCMP PN" failed to apply to 4.19-stable tree

FAILED: patch "[PATCH] mt76: fix corrupted software generated tx CCMP PN" failed to apply to 4.19-stable tree

[gregkh]

The patch below does not apply to the 4.19-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 906d2d3f874a54183df5a609fda180adf0462428 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 25 Jan 2019 17:59:06 +0100
Subject: [PATCH] mt76: fix corrupted software generated tx CCMP PN

Since ccmp_pn is u8 *, the second half needs to start at array index 4
instead of 0. Fixes a connection stall after a certain amount of traffic

Fixes: 23405236460b9 ("mt76: fix transmission of encrypted management frames")
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@nbd.name>

diff --git a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
index bf39624c9b98..eab713723b7e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
+++ b/drivers/net/wireless/mediatek/mt76/mt76x02_mac.c
@@ -314,7 +314,7 @@ void mt76x02_mac_write_txwi(struct mt76x02_dev *dev, struct mt76x02_txwi *txwi,
 		ccmp_pn[6] = pn >> 32;
 		ccmp_pn[7] = pn >> 40;
 		txwi->iv = *((__le32 *)&ccmp_pn[0]);
-		txwi->eiv = *((__le32 *)&ccmp_pn[1]);
+		txwi->eiv = *((__le32 *)&ccmp_pn[4]);
 	}
 
 	spin_lock_bh(&dev->mt76.lock);