[libvirt] [PATCH] conf: check rombar against VIR_DOMAIN_TRISTATE_SWITCH_ABSENT

[Michal Privoznik]

On 08/07/2017 04:56 PM, Ján Tomko wrote:
> Make the comparison explicit.
> ---
>  src/conf/domain_conf.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
> index 3cdb5e348..b5ce2ecd9 100644
> --- a/src/conf/domain_conf.c
> +++ b/src/conf/domain_conf.c
> @@ -5359,10 +5359,10 @@ virDomainDeviceInfoFormat(virBufferPtr buf,
>      }
>  
>      if ((flags & VIR_DOMAIN_DEF_FORMAT_ALLOW_ROM) &&
> -        (info->rombar || info->romfile)) {
> +        (info->rombar != VIR_TRISTATE_SWITCH_ABSENT || info->romfile)) {
>  
>          virBufferAddLit(buf, "<rom");
> -        if (info->rombar) {
> +        if (info->rombar != VIR_TRISTATE_SWITCH_ABSENT) {
>              const char *rombar = virTristateSwitchTypeToString(info->rombar);
>  
>              if (rombar)
> 

I'm not against this patch, it's just that we set ABSENT explicitly to
zero value so that we can do shortcuts like this. If we don't want to
have them, we ought to remove the explicit value assignment.

Michal