Dave Jiang <dave.ji...@intel.com> wrote:

> +     /* request new key from userspace */
> +     key = nvdimm_request_key(dev, update);
> +     if (!key) {
> +             dev_dbg(dev, "%s: failed to acquire new key\n", __func__);
> +             rc = -ENXIO;
> +             goto out;
> +     }

I still think you're better taking two explicit key IDs as part of the command
rather than using request_key() to *hopefully* pick the right target.

David
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