linux-kernel - Re: [PATCH 1/1] nvdimm: allow exposing RAM carveouts as NVDIMM DIMM devices

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Message-ID: <696700bba6f6a_207181006c@dwillia2-mobl4.notmuch>
Date: Tue, 13 Jan 2026 18:34:35 -0800
From: <dan.j.williams@...el.com>
To: Michał Cłapiński <mclapinski@...gle.com>, "Ira
 Weiny" <ira.weiny@...el.com>
CC: <dan.j.williams@...el.com>, Mike Rapoport <rppt@...nel.org>, Dave Jiang
	<dave.jiang@...el.com>, Vishal Verma <vishal.l.verma@...el.com>,
	<jane.chu@...cle.com>, Pasha Tatashin <pasha.tatashin@...een.com>, "Tyler
 Hicks" <code@...icks.com>, <linux-kernel@...r.kernel.org>,
	<nvdimm@...ts.linux.dev>
Subject: Re: [PATCH 1/1] nvdimm: allow exposing RAM carveouts as NVDIMM DIMM
 devices

Michał Cłapiński wrote:
[..]
> > Did yall have a suggestion on how?  I lost track of this thread over the
> > holidays and so I'm not sure where this stands.
> >
> > Ira
> 
> I think Dan's change needs to skip devm_request_mem_region if offset
> == 0 in __dax_pmem_probe in drivers/dax/pmem.c.

I would be happy to review a fixup patch that works for you, and give
you Co-developed-by credit. That would be faster than waiting for this
to bubble back up to the top my queue again.