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Re: [PATCH v2] libnvdimm: Fix nvdimm_probe error on NVDIMM-N

From Johannes Thumshirn <jthumshirn@suse.de>
Newsgroups linux.kernel
Subject Re: [PATCH v2] libnvdimm: Fix nvdimm_probe error on NVDIMM-N
Date 2016-08-19 10:20 +0200
Message-ID <s7NbY-39C-13@gated-at.bofh.it> (permalink)
References <s6RUm-70n-7@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Tue, Aug 16, 2016 at 01:08:40PM -0600, Toshi Kani wrote:
> 'ndctl list --buses --dimms' does not list any NVDIMM-Ns since
> they are considered as idle.  ndctl checks if any driver is
> attached to nmem device.  nvdimm_probe() always fails in
> nvdimm_init_nsarea() since NVDIMM-Ns do not implement optinal
> ND_CMD_GET_CONFIG_DATA command.
> 
> Change nvdimm_probe() to accept the case that the CONFIG_DATA
> command is not implemented for NVDIMM-Ns.  The driver attaches
> without ndd, which keeps it no-op to the device.
> 
> Reported-by: Brian Boylston <brian.boylston@hpe.com>
> Signed-off-by: Toshi Kani <toshi.kani@hpe.com>
> Cc: Dan Williams <dan.j.williams@intel.com>

Tested-by: Johannes Thumshirn <jthumshirn@suse.de>
Acked-by: Johannes Thumshirn <jthumshirn@suse.de>

-- 
Johannes Thumshirn                                          Storage
jthumshirn@suse.de                                +49 911 74053 689
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[PATCH v2] libnvdimm: Fix nvdimm_probe error on NVDIMM-N Toshi Kani <toshi.kani@hpe.com> - 2016-08-16 21:10 +0200
  Re: [PATCH v2] libnvdimm: Fix nvdimm_probe error on NVDIMM-N Johannes Thumshirn <jthumshirn@suse.de> - 2016-08-19 10:20 +0200

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