On Fri, Feb 7, 2020 at 5:21 PM Philippe Mathieu-Daudé <phi...@redhat.com> wrote:
>
> It would be confusing to have multiple default machines.
> Abort if this ever occurs.
>
> Signed-off-by: Philippe Mathieu-Daudé <phi...@redhat.com>
> ---
> v2: Use assert() instead of human friendly message (Marc-André)
> v3: Move the check to find_machine() (Michael)
>
> Cc: Marc-André Lureau <marcandre.lur...@gmail.com>
> Cc: Laurent Vivier <laur...@vivier.eu>
> Cc: Michael S. Tsirkin <m...@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lur...@redhat.com>
> ---
> vl.c | 6 ++++--
> 1 file changed, 4 insertions(+), 2 deletions(-)
>
> diff --git a/vl.c b/vl.c
> index 7dcb0879c4..ebc203af0d 100644
> --- a/vl.c
> +++ b/vl.c
> @@ -1184,16 +1184,18 @@ static MachineClass *find_machine(const char *name,
> GSList *machines)
> static MachineClass *find_default_machine(GSList *machines)
> {
> GSList *el;
> + MachineClass *default_machineclass = NULL;
>
> for (el = machines; el; el = el->next) {
> MachineClass *mc = el->data;
>
> if (mc->is_default) {
> - return mc;
> + assert(default_machineclass == NULL && "Multiple default
> machines");
> + default_machineclass = mc;
> }
> }
>
> - return NULL;
> + return default_machineclass;
> }
>
> static int machine_help_func(QemuOpts *opts, MachineState *machine)
> --
> 2.21.1
>
--
Marc-André Lureau
