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Date:   Wed, 30 Oct 2019 15:05:11 +0100
From:   Christoph Hellwig <hch@lst.de>
To:     Akinobu Mita <akinobu.mita@gmail.com>
Cc:     Guenter Roeck <linux@roeck-us.net>,
        Keith Busch <kbusch@kernel.org>, Jens Axboe <axboe@fb.com>,
        Christoph Hellwig <hch@lst.de>,
        Sagi Grimberg <sagi@grimberg.me>,
        LKML <linux-kernel@vger.kernel.org>,
        linux-nvme@lists.infradead.org,
        Linux PM <linux-pm@vger.kernel.org>,
        Chris Healy <cphealy@gmail.com>
Subject: Re: [PATCH v2] nvme: Add hardware monitoring support
Message-ID: <20191030140511.GA14252@lst.de>
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On Wed, Oct 30, 2019 at 08:16:48PM +0900, Akinobu Mita wrote:
> The nvme_init_identify() can be called multiple time in nvme ctrl's
> lifetime (e.g 'nvme reset /dev/nvme*' or suspend/resume paths), so
> should we need to prevent nvme_hwmon_init() from registering hwmon
> device more than twice?
> 
> In the nvme thermal zone patchset[1], thernal zone is registered in
> nvme_init_identify and unregistered in nvme_stop_ctrl().

So Guenter said above the thermal subsystem could use the information
from hwmon as well.  Does this mean this patch would solve your needs
as well?