linux-kernel - Re: Problems with phys_to_pfn

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Message-ID: <CAPcyv4jnJFgN-5Gsh_fss-d_iwscDt_QkadypXsp_avZ0bVjGQ@mail.gmail.com>
Date:	Wed, 23 Dec 2015 22:24:55 -0800
From:	Dan Williams <dan.j.williams@...el.com>
To:	Guenter Roeck <linux@...ck-us.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	linux-s390 <linux-s390@...r.kernel.org>,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: Re: Problems with phys_to_pfn_t in linux-next and s390

On Wed, Dec 23, 2015 at 9:56 PM, Guenter Roeck <linux@...ck-us.net> wrote:
> s390:defconfig:
>
> ERROR: "phys_to_pfn_t" [drivers/s390/block/dcssblk.ko] undefined!
>
> s390 does not set CONFIG_HAS_IOMEM, which is required for phys_to_pfn_t to
> exist.
>
> Introduced with commit e014f77c4b ("mm-dax-pmem-introduce-pfn_t-v3") and
> possibly earlier.

Addressed in v4:
https://lists.01.org/pipermail/linux-nvdimm/2015-December/003610.html
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