linux-kernel - Re: [Linux-nvdimm] [PATCH 0/2] e820: Fix handling of NvDIMM chips

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Date:	Thu, 19 Feb 2015 12:29:53 +0200
From:	Boaz Harrosh <boaz@...xistor.com>
To:	Ingo Molnar <mingo@...nel.org>,
	Dan Williams <dan.j.williams@...el.com>
CC:	Christoph Hellwig <hch@...radead.org>,
	Matthew Wilcox <willy@...ux.intel.com>,
	Ingo Molnar <mingo@...hat.com>,
	Ross Zwisler <ross.zwisler@...ux.intel.com>, x86@...nel.org,
	linux-kernel <linux-kernel@...r.kernel.org>,
	"Roger C. Pao" <rcpao.enmotus@...il.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-nvdimm <linux-nvdimm@...1.01.org>,
	"H. Peter Anvin" <hpa@...or.com>
Subject: Re: [Linux-nvdimm] [PATCH 0/2] e820: Fix handling of NvDIMM chips

On 02/19/2015 12:01 PM, Ingo Molnar wrote:
> 
> * Dan Williams <dan.j.williams@...el.com> wrote:
> 
>> On Wed, Feb 18, 2015 at 4:47 PM, Christoph Hellwig <hch@...radead.org> wrote:
>>> On Wed, Feb 18, 2015 at 10:15:32AM -0800, Dan Williams wrote:
>>>> In fact it was originally "type-6" until ACPI 5 
>>>> claimed that number for official use, so these 
>>>> platforms, with early proof-of-concept nvdimm support, 
>>>> have already gone through one transition to a new 
>>>> number.  They need to do the same once an official 
>>>> number for nvdimm support is published.
>>>>
>>>> Put another way, these early platforms are already 
>>>> using out-of-tree patches for nvdimm enabling.  They 
>>>> can continue to do so, or switch to standard methods 
>>>> when the standard is published.
>>>
>>> Not supporting hardware that is widely avaiable (I have 
>>> some, too) is not very user friendly.
>>
>> Yes, as I agreed with Ingo, allowing a driver to assume 
>> control of an unknown memory type with a warning or a 
>> kernel taint seems fine.
> 
> If someone cooks up such a patch I can apply it.
> 
> Thanks,
> 
> 	Ingo
> 

I will submit a new version of my patch-1 with the pr_warn.

Or did you already apply my patch-1 and you want one on top?
What is the URL of your tree please?

Thanks
Boaz

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