netdev - Re: [PATCH v3 0/2] net: stmmac: Enhanced addressing mode for DWMAC 4.10

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Date:   Tue, 24 Sep 2019 21:45:08 +0200 (CEST)
From:   David Miller <davem@...emloft.net>
To:     thierry.reding@...il.com
Cc:     peppe.cavallaro@...com, alexandre.torgue@...com,
        joabreu@...opsys.com, f.fainelli@...il.com, jonathanh@...dia.com,
        bbiswas@...dia.com, netdev@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: Re: [PATCH v3 0/2] net: stmmac: Enhanced addressing mode for DWMAC
 4.10

From: Thierry Reding <thierry.reding@...il.com>
Date: Fri, 20 Sep 2019 19:00:34 +0200

> From: Thierry Reding <treding@...dia.com>
> 
> The DWMAC 4.10 supports the same enhanced addressing mode as later
> generations. Parse this capability from the hardware feature registers
> and set the EAME (Enhanced Addressing Mode Enable) bit when necessary.

This looks like an enhancement and/or optimization rather than a bug fix.

Also, you're now writing to the high 32-bits unconditionally, even when
it will always be zero because of 32-bit addressing.  That looks like
a step backwards to me.

I'm not applying this.