Re: [Qemu-devel] [PATCH v3 11/13] nvdimm: allow setting the label-size to 0

[Igor Mammedov]

On Fri, 15 Jun 2018 16:04:46 +0200
David Hildenbrand <address@hidden> wrote:

> It is inititally 0, so setting it to 0 should be allowed, too.
I'm not sure if we need to permit it.
By default labels are disabled (label-size=0) and user are supposed to provide
this option if labels should be enabled with a valid size. 

it could be confusing for user when asking for label and not getting it.

I suggest to drop this patch, it's not really related to this series
nor required for your future work.

> Signed-off-by: David Hildenbrand <address@hidden>
> ---
>  hw/mem/nvdimm.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/mem/nvdimm.c b/hw/mem/nvdimm.c
> index db7d8c3050..df7646488b 100644
> --- a/hw/mem/nvdimm.c
> +++ b/hw/mem/nvdimm.c
> @@ -52,9 +52,9 @@ static void nvdimm_set_label_size(Object *obj, Visitor *v, 
> const char *name,
>      if (local_err) {
>          goto out;
>      }
> -    if (value < MIN_NAMESPACE_LABEL_SIZE) {
> +    if (value && value < MIN_NAMESPACE_LABEL_SIZE) {
>          error_setg(&local_err, "Property '%s.%s' (0x%" PRIx64 ") is required"
> -                   " at least 0x%lx", object_get_typename(obj),
> +                   " either 0 or at least 0x%lx", object_get_typename(obj),
>                     name, value, MIN_NAMESPACE_LABEL_SIZE);
>          goto out;
>      }