diff options
| author | Xu Yilun <yilun.xu@linux.intel.com> | 2025-07-16 10:03:46 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2025-07-18 23:33:08 +0300 |
| commit | 651f733675c4a26e59dd34522917eace20c557c0 (patch) | |
| tree | 1d5f5fbf461e6df98a78e54ceb390465918c979f /include/linux | |
| parent | 850f14f5b91986e586b66565c9c75bdd4c834571 (diff) | |
| download | linux-651f733675c4a26e59dd34522917eace20c557c0.tar.xz | |
iommufd/vdevice: Remove struct device reference from struct vdevice
Remove struct device *dev from struct vdevice.
The dev pointer is the Plan B for vdevice to reference the physical
device. As now vdev->idev is added without refcounting concern, just
use vdev->idev->dev when needed. To avoid exposing
struct iommufd_device in the public header, export a
iommufd_vdevice_to_device() helper.
Link: https://patch.msgid.link/r/20250716070349.1807226-6-yilun.xu@linux.intel.com
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Reviewed-by: Nicolin Chen <nicolinc@nvidia.com>
Co-developed-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Tested-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/iommufd.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/include/linux/iommufd.h b/include/linux/iommufd.h index b88911026bc4..810e4d8ac912 100644 --- a/include/linux/iommufd.h +++ b/include/linux/iommufd.h @@ -109,7 +109,6 @@ struct iommufd_vdevice { struct iommufd_object obj; struct iommufd_viommu *viommu; struct iommufd_device *idev; - struct device *dev; /* * Virtual device ID per vIOMMU, e.g. vSID of ARM SMMUv3, vDeviceID of @@ -261,6 +260,7 @@ int _iommufd_alloc_mmap(struct iommufd_ctx *ictx, struct iommufd_object *owner, unsigned long *offset); void _iommufd_destroy_mmap(struct iommufd_ctx *ictx, struct iommufd_object *owner, unsigned long offset); +struct device *iommufd_vdevice_to_device(struct iommufd_vdevice *vdev); struct device *iommufd_viommu_find_dev(struct iommufd_viommu *viommu, unsigned long vdev_id); int iommufd_viommu_get_vdev_id(struct iommufd_viommu *viommu, @@ -296,6 +296,12 @@ static inline void _iommufd_destroy_mmap(struct iommufd_ctx *ictx, } static inline struct device * +iommufd_vdevice_to_device(struct iommufd_vdevice *vdev) +{ + return NULL; +} + +static inline struct device * iommufd_viommu_find_dev(struct iommufd_viommu *viommu, unsigned long vdev_id) { return NULL; |