On Tue, Oct 29, 2024 at 08:46:40AM -0700, Nicolin Chen wrote: > On Tue, Oct 29, 2024 at 12:36:24PM -0300, Jason Gunthorpe wrote: > > On Tue, Oct 29, 2024 at 11:54:36AM -0300, Jason Gunthorpe wrote: > > > On Fri, Oct 25, 2024 at 04:49:44PM -0700, Nicolin Chen wrote: > > > > +void iommufd_viommu_destroy(struct iommufd_object *obj) > > > > +{ > > > > + struct iommufd_viommu *viommu = > > > > + container_of(obj, struct iommufd_viommu, obj); > > > > + > > > > + if (viommu->ops && viommu->ops->free) > > > > + viommu->ops->free(viommu); > > > > > > Ops can't be null and free can't be null, that would mean there is a > > > memory leak. > > > > Actually, it is just named wrong, it should be called destroy like > > this op, it doesn't free any memory.. > > Well, it frees if driver allocated something in its top structure. > Yet, "destroy" does sound less confusing. Let's rename it, assuming > it can still remain to be optional as we have here. Yes, optional is right, I was confused by the name. The core code uses destroy so I'd stick with that. Jason