On Tue, Feb 06, 2018 at 03:40:18PM +0100, Michal Privoznik wrote: > When validating a device XML config we check if user provided > alias is unique. We do this by maintaining a hash table of device > aliases as we iterated over all devices defined for the domain. > However, it may happen that what appears as two devices in domain > XML is in fact just one interface in hypervisor. For instance in > qemu driver this is true for uhci/ehci controllers. In that case > an error is reported even though it is not actually an error. At > any rate, we can assume libvirt generated aliases to be unique > and thus really check user provided ones only. > > Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com&gt; > --- > src/conf/domain_conf.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c > index 34aae82f1..44724bd01 100644 > --- a/src/conf/domain_conf.c > +++ b/src/conf/domain_conf.c > @@ -5569,7 +5569,7 @@ virDomainDeviceDefValidateAliasesIterator(virDomainDefPtr def, > struct virDomainDefValidateAliasesData *data = opaque; > const char *alias = info->alias; > > - if (!alias) > + if (!alias || !STRPREFIX(alias, "ua-")) > return 0; nitpick - use USER_ALIAS_PREFIX constant