Commit 062e720c authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Alex Williamson
Browse files

vfio/mdev: remove mdev_parent_dev 



Just open code the dereferences in the only user.

Signed-off-by: default avatarChristoph Hellwig <hch@lst.de>
Reviewed-by: default avatarJason Gunthorpe <jgg@nvidia.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Reviewed-by: default avatarKirti Wankhede <kwankhede@nvidia.com>
Link: https://lore.kernel.org/r/20220923092652.100656-9-hch@lst.de


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 2815fe14

Documentation/driver-api/vfio-mediated-device.rst

+0 −3
Original line number Diff line number Diff line
@@ -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,

drivers/gpu/drm/i915/gvt/kvmgt.c

+1 −1
Original line number Diff line number Diff line
@@ -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);

}

drivers/vfio/mdev/mdev_core.c

+0 −6
Original line number Diff line number Diff line
@@ -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

include/linux/mdev.h

+0 −1
Original line number Diff line number Diff line
@@ -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;