On Fri, Jan 06, 2023 at 07:28:46PM +0800, Baolu Lu wrote: > > diff --git a/include/linux/iommu.h b/include/linux/iommu.h > > index 46e1347bfa2286..9b7a9fa5ad28d3 100644 > > --- a/include/linux/iommu.h > > +++ b/include/linux/iommu.h > > @@ -455,6 +455,7 @@ static inline const struct iommu_ops *dev_iommu_ops(struct device *dev) > > extern int bus_iommu_probe(struct bus_type *bus); > > extern bool iommu_present(struct bus_type *bus); > > extern bool device_iommu_capable(struct device *dev, enum iommu_cap cap); > > +extern bool iommu_group_has_isolated_msi(struct iommu_group *group); > > This lacks a static inline definition when CONFIG_IOMMU_API is false? It is not needed, the call sites are all compilation protected by CONFIG_IOMMU_API already. Thanks, Jason