Re: [PATCH 08/17] uuid: hoist uuid_is_null() helper from libnvdimm

[Dan Williams]

On Mon, May 15, 2017 at 8:42 AM, Christoph Hellwig <hch@xxxxxx> wrote:
> Hoist the libnvdimm helper as an inline helper to linux/uuid.h
> using an auxiliary const variable uuid_null in lib/uuid.c.
>
> [hch: also add the guid variant.  Both do the same but I'd like
> to keep casts to a minimum]
>
> The common helper uses the new abstract type uuid_t * instead of
> u8 *.
>
> Suggested-by: Christoph Hellwig <hch@xxxxxx>
> Cc: Dan Williams <dan.j.williams@xxxxxxxxx>
> Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
> Cc: David Howells <dhowells@xxxxxxxxxx>
> Signed-off-by: Amir Goldstein <amir73il@xxxxxxxxx>
> [hch: added guid_is_null]
> Signed-off-by: Christoph Hellwig <hch@xxxxxx>

Acked-by: Dan Williams <dan.j.williams@xxxxxxxxx>