netdev - Re: [PATCH 2/3] net: socionext: Add Synquacer NetSec driver

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Date:   Thu, 30 Nov 2017 13:14:48 -0500 (EST)
From:   David Miller <davem@...emloft.net>
To:     ard.biesheuvel@...aro.org
Cc:     dan.j.williams@...el.com, will.deacon@....com,
        jassisinghbrar@...il.com, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, arnd.bergmann@...aro.org,
        robh+dt@...nel.org, mark.rutland@....com,
        jaswinder.singh@...aro.org
Subject: Re: [PATCH 2/3] net: socionext: Add Synquacer NetSec driver

From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
Date: Thu, 30 Nov 2017 18:08:34 +0000

> But the whole point of memremap() is obtaining a virtual mapping
> that does not require accessors, but can be used like ordinary
> memory.

That's unfortunately not what it's doing.

It's relying on the fact that some architectures (I guess x86
and arm) do happen to give a virutal address from ioremap_wt()
even though it's return type is annotated __iomem.

Thanks in advance for changing your driver to use ioremap() and
accessors for now.