netdev - backport commit ("f421031e3ff0 net: stmmac: reset Tx desc base address before restarting") to linux-5.4-stable

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Date:   Fri, 24 Sep 2021 17:37:19 +0800
From:   Macpaul Lin <macpaul.lin@...iatek.com>
To:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S. Miller" <davem@...emloft.net>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        <netdev@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <stable@...r.kernel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     Miles Chen <miles.chen@...iatek.com>,
        Bear Wang <bear.wang@...iatek.com>,
        Pablo Sun <pablo.sun@...iatek.com>,
        Fabien Parent <fparent@...libre.com>,
        Macpaul Lin <macpaul.lin@...iatek.com>,
        Macpaul Lin <macpaul@...il.com>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>
Subject: backport commit ("f421031e3ff0 net: stmmac: reset Tx desc base address before restarting") to linux-5.4-stable

Hi reviewers,

I suggest to backport 
commit "f421031e3ff0 net: stmmac: reset Tx desc base address before
restarting"
to linux-5.4 stable tree.

This patch reports a register usage correction for an address
inconsistency issue.
"If this register is not changed when the ST bit is set to 0, then
the DMA takes the descriptor address where it was stopped earlier."

commit: f421031e3ff0dd288a6e1bbde9aa41a25bb814e6
subject: net: stmmac: reset Tx desc base address before restarting
kernel version to apply to: Linux-5.4

Thanks.
Macpaul Lin