>>> On 12.09.13 at 21:49, David Vrabel <david.vrabel at citrix.com> wrote: > +#else /* __XEN_INTERFACE_VERSION__ < 0x00040400 */ > + > +#define KEXEC_CMD_kexec_load KEXEC_CMD_kexec_load_v1 > +#define KEXEC_CMD_kexec_unload KEXEC_CMD_kexec_unload_v1 > +typedef struct xen_kexec_load { > + int type; > + xen_kexec_image_t image; > +} xen_kexec_load_t; Is there anything preventing the use of two #define-s here instead of repeating the declaration (which results in these and the ones with the _v1 tags not being interchangeable)? Jan