linux-kernel - Re: [PATCH v3 4/5] nvme: Implement resume_from

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Date:   Mon, 19 Dec 2016 22:49:01 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     Scott Bauer <scott.bauer@...el.com>
Cc:     linux-nvme@...ts.infradead.org, keith.busch@...el.com,
        sagi@...mberg.me, hch@...radead.org, Rafael.Antognolli@...el.com,
        linux-kernel@...r.kernel.org, axboe@...com,
        viro@...iv.linux.org.uk, jonathan.derrick@...el.com
Subject: Re: [PATCH v3 4/5] nvme: Implement resume_from_suspend and SED
 Allocation code.

> +void nvme_unlock_from_suspend(struct nvme_ctrl *ctrl)
> +{
> +	if (opal_unlock_from_suspend(&ctrl->sed_ctx))
> +		pr_warn("Failed to unlock one or more locking ranges!\n");
> +}
> +EXPORT_SYMBOL_GPL(nvme_unlock_from_suspend);

I don't think we even need this wrapper.  Also for the warning please
use dev_warn so that the user knows which controller failed.

> @@ -1765,7 +1766,7 @@ static void nvme_reset_work(struct work_struct *work)
>  {
>  	struct nvme_dev *dev = container_of(work, struct nvme_dev, reset_work);
>  	int result = -ENODEV;
> -
> +	bool was_suspend = !!(dev->ctrl.ctrl_config & NVME_CC_SHN_NORMAL);
>  	if (WARN_ON(dev->ctrl.state == NVME_CTRL_RESETTING))

Please don't remove the empty line after the variable declarations.
Also I would place your new line before the result line, as that makes
it a tad easier to read.