On Fri, Jun 6, 2025 at 7:50 PM Eugenio Pérez <eperezma@xxxxxxxxxx> wrote: > > This allows to define all functions checking the API version set by the > userland device. > > Signed-off-by: Eugenio Pérez <eperezma@xxxxxxxxxx> It might be worth clarifying how it works. For example, 1) would VDUSE behave differently or if it's just some new ioctls 2) If VDUSE behave differently, do we need a ioctl to set the API version for backward compatibility? 3) If it means a brunch of new ioctls, could userspace just probe the new ioctls instead? Thanks > --- > include/uapi/linux/vduse.h | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/include/uapi/linux/vduse.h b/include/uapi/linux/vduse.h > index 68a627d04afa..9a56d0416bfe 100644 > --- a/include/uapi/linux/vduse.h > +++ b/include/uapi/linux/vduse.h > @@ -10,6 +10,10 @@ > > #define VDUSE_API_VERSION 0 > > +/* VQ groups and ASID support */ > + > +#define VDUSE_API_VERSION_1 1 > + > /* > * Get the version of VDUSE API that kernel supported (VDUSE_API_VERSION). > * This is used for future extension. > -- > 2.49.0 >
