[PATCH v3 01/16] iommufd/viommu: Introduce IOMMUFD_OBJ_VDEVICE and its related struct
Nicolin Chen
nicolinc at nvidia.com
Sat Oct 19 18:35:45 PDT 2024
On Thu, Oct 17, 2024 at 03:45:56PM -0300, Jason Gunthorpe wrote:
> > +struct iommufd_vdevice *
> > +__iommufd_vdevice_alloc(struct iommufd_ctx *ictx, size_t size)
> > +{
> > + struct iommufd_object *obj;
> > +
> > + if (WARN_ON(size < sizeof(struct iommufd_vdevice)))
> > + return ERR_PTR(-EINVAL);
> > + obj = iommufd_object_alloc_elm(ictx, size, IOMMUFD_OBJ_VDEVICE);
> > + if (IS_ERR(obj))
> > + return ERR_CAST(obj);
> > + return container_of(obj, struct iommufd_vdevice, obj);
> > +}
>
> Like for the viommu this can all just be folded into the #define
It seems that we have to keep two small functions as followings,
unless we want to expose the enum iommufd_object_type.
---------------------------------------------------------------
diff --git a/drivers/iommu/iommufd/driver.c b/drivers/iommu/iommufd/driver.c
index 4495f1aaccca..fdd203487bac 100644
--- a/drivers/iommu/iommufd/driver.c
+++ b/drivers/iommu/iommufd/driver.c
@@ -38,10 +38,19 @@ _iommufd_object_alloc_member(struct iommufd_ctx *ictx, size_t size,
EXPORT_SYMBOL_NS_GPL(_iommufd_object_alloc_member, IOMMUFD);
struct iommufd_viommu *_iommufd_viommu_alloc(struct iommufd_ctx *ictx,
size_t size)
{
return container_of(_iommufd_object_alloc_member(ictx, size,
IOMMUFD_OBJ_VIOMMU),
struct iommufd_viommu, obj);
}
EXPORT_SYMBOL_NS_GPL(_iommufd_viommu_alloc, IOMMUFD);
+
+struct iommufd_vdevice *_iommufd_vdevice_alloc(struct iommufd_ctx *ictx,
+ size_t size)
+{
+ return container_of(_iommufd_object_alloc_member(ictx, size,
+ IOMMUFD_OBJ_VDEVICE),
+ struct iommufd_vdevice, obj);
+}
+EXPORT_SYMBOL_NS_GPL(_iommufd_vdevice_alloc, IOMMUFD);
---------------------------------------------------------------
Thanks
Nicolin
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