linux-kernel - Re: [PATCH v5 12/21] libnvdimm: namespace indices: read and validate

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Message-ID: <CAPcyv4jZe7K0CSLceXeUft0EzKUH1H_7EoGeVVX5FjWfES2n_Q@mail.gmail.com>
Date:	Wed, 10 Jun 2015 08:54:32 -0700
From:	Dan Williams <dan.j.williams@...el.com>
To:	Christoph Hellwig <hch@....de>
Cc:	"linux-nvdimm@...ts.01.org" <linux-nvdimm@...ts.01.org>,
	Jens Axboe <axboe@...nel.dk>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Neil Brown <neilb@...e.de>,
	Greg KH <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Linux ACPI <linux-acpi@...r.kernel.org>,
	jmoyer <jmoyer@...hat.com>, linux-api@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH v5 12/21] libnvdimm: namespace indices: read and validate

On Mon, Jun 8, 2015 at 11:39 PM, Christoph Hellwig <hch@....de> wrote:
>> +#include <asm-generic/io-64-nonatomic-lo-hi.h>
>> +
>> +#ifndef __io_virt
>> +#define __io_virt(x) ((void __force *) (x))
>> +#endif
>
> NAK. driver code mus never include asm-generic headers directly,
> and __io_virt isn't something that's up to a driver to redefine either.
>
> I think we really need the memremap series in first before trying to
> do the things done in this patch.

I was abusing read[wlq] and write[wlq].  All this patch needs is a
conversion to use __leXXto_cpu and __cpu_to_leXX helpers.
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