linux-kernel - Re: [PATCH v2 1/2] nvmet: Move serial number from controller to subsystem

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Date:   Fri, 14 Jul 2017 14:31:01 +0200
From:   Christoph Hellwig <hch@....de>
To:     Johannes Thumshirn <jthumshirn@...e.de>
Cc:     Christoph Hellwig <hch@....de>, Sagi Grimberg <sagi@...mberg.me>,
        Keith Busch <keith.busch@...el.com>,
        Linux Kernel Mailinglist <linux-kernel@...r.kernel.org>,
        Linux NVMe Mailinglist <linux-nvme@...ts.infradead.org>
Subject: Re: [PATCH v2 1/2] nvmet: Move serial number from controller to
        subsystem

> -	/* generate a random serial number as our controllers are ephemeral: */
> -	get_random_bytes(&ctrl->serial, sizeof(ctrl->serial));
> -
>  	kref_init(&ctrl->ref);
>  	ctrl->subsys = subsys;
>  
> @@ -928,6 +925,7 @@ struct nvmet_subsys *nvmet_subsys_alloc(const char *subsysnqn,
>  		return NULL;
>  
>  	subsys->ver = NVME_VS(1, 3, 0); /* NVMe 1.3.0 */
> +	get_random_bytes(&subsys->serial, sizeof(subsys->serial));

This removes the comment, which I think is fairly useful.