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authorChristoph Hellwig <hch@lst.de>2022-09-23 11:26:46 +0200
committerAlex Williamson <alex.williamson@redhat.com>2022-10-04 12:06:58 -0600
commit062e720cd209d8091c4f3d118d93973f02209aca (patch)
tree89b87dfa80ee9699595e55c50e76b4251c69ca95
parentvfio/mdev: unexport mdev_bus_type (diff)
downloadlinux-dev-062e720cd209d8091c4f3d118d93973f02209aca.tar.xz
linux-dev-062e720cd209d8091c4f3d118d93973f02209aca.zip
vfio/mdev: remove mdev_parent_dev
Just open code the dereferences in the only user. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Reviewed-by: Kirti Wankhede <kwankhede@nvidia.com> Link: https://lore.kernel.org/r/20220923092652.100656-9-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
-rw-r--r--Documentation/driver-api/vfio-mediated-device.rst3
-rw-r--r--drivers/gpu/drm/i915/gvt/kvmgt.c2
-rw-r--r--drivers/vfio/mdev/mdev_core.c6
-rw-r--r--include/linux/mdev.h1
4 files changed, 1 insertions, 11 deletions
diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst
index ff7342d2e332..7b660f3fa2c9 100644
--- a/Documentation/driver-api/vfio-mediated-device.rst
+++ b/Documentation/driver-api/vfio-mediated-device.rst
@@ -200,9 +200,6 @@ Directories and files under the sysfs for Each Physical Device
sprintf(buf, "%s-%s", dev_driver_string(parent->dev), group->name);
- (or using mdev_parent_dev(mdev) to arrive at the parent device outside
- of the core mdev code)
-
* device_api
This attribute should show which device API is being created, for example,
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index 12b0b3306168..2265dd867956 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -1488,7 +1488,7 @@ static int intel_vgpu_init_dev(struct vfio_device *vfio_dev)
struct intel_vgpu_type *type =
container_of(mdev->type, struct intel_vgpu_type, type);
- vgpu->gvt = kdev_to_i915(mdev_parent_dev(mdev))->gvt;
+ vgpu->gvt = kdev_to_i915(mdev->type->parent->dev)->gvt;
return intel_gvt_create_vgpu(vgpu, type->conf);
}
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index bde7ce620dae..75628759a3bf 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -23,12 +23,6 @@ static struct class_compat *mdev_bus_compat_class;
static LIST_HEAD(mdev_list);
static DEFINE_MUTEX(mdev_list_lock);
-struct device *mdev_parent_dev(struct mdev_device *mdev)
-{
- return mdev->type->parent->dev;
-}
-EXPORT_SYMBOL(mdev_parent_dev);
-
/*
* Used in mdev_type_attribute sysfs functions to return the parent struct
* device
diff --git a/include/linux/mdev.h b/include/linux/mdev.h
index 6c179d2b8927..bbedffcb38d4 100644
--- a/include/linux/mdev.h
+++ b/include/linux/mdev.h
@@ -95,7 +95,6 @@ void mdev_unregister_parent(struct mdev_parent *parent);
int mdev_register_driver(struct mdev_driver *drv);
void mdev_unregister_driver(struct mdev_driver *drv);
-struct device *mdev_parent_dev(struct mdev_device *mdev);
static inline struct device *mdev_dev(struct mdev_device *mdev)
{
return &mdev->dev;