Re: [PATCH] util/uuid: Define UUID_STR_LEN from UUID_NONE string

["Cédric Le Goater" <clg@redhat.com>]

On 10/27/23 08:54, Cédric Le Goater wrote:
> Cc: Fam Zheng <fam@euphon.net>
> Suggested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
> Signed-off-by: Cédric Le Goater <clg@redhat.com>
> ---
> 
>   Follow up on :
>   
>   https://lore.kernel.org/qemu-devel/20231026070636.1165037-1-clg@redhat.com/
> 
>   include/qemu/uuid.h | 5 +++--
>   1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/include/qemu/uuid.h b/include/qemu/uuid.h
> index 356efe7b5797911640ed347fc08f4ef5ebbd0476..869f84af09ddc4aa80d53e133c323781ade4d190 100644
> --- a/include/qemu/uuid.h
> +++ b/include/qemu/uuid.h
> @@ -78,9 +78,10 @@ typedef struct {
>                    "%02hhx%02hhx-" \
>                    "%02hhx%02hhx%02hhx%02hhx%02hhx%02hhx"
>   
> -#define UUID_STR_LEN (36 + 1)
> -
>   #define UUID_NONE "00000000-0000-0000-0000-000000000000"
> +QEMU_BUILD_BUG_ON(sizeof(UUID_NONE) - 1 != 36);
> +
> +#define UUID_STR_LEN sizeof(UUID_NONE)
>   
>   void qemu_uuid_generate(QemuUUID *out);
>   

Applied to vfio-next.

Thanks,

C.