Commit c7c1f38f authored by Christoph Hellwig's avatar Christoph Hellwig Committed by Alex Williamson
Browse files

vfio/mdev: remove mtype_get_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 avatarJason J. Herne <jjherne@linux.ibm.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Reviewed-by: default avatarKirti Wankhede <kwankhede@nvidia.com>
Reviewed-by: default avatarEric Farman <farman@linux.ibm.com>
Link: https://lore.kernel.org/r/20220923092652.100656-10-hch@lst.de


Signed-off-by: default avatarAlex Williamson <alex.williamson@redhat.com>
parent 062e720c

drivers/s390/cio/vfio_ccw_ops.c

+1 −2
Original line number Diff line number Diff line
@@ -62,8 +62,7 @@ static ssize_t available_instances_show(struct mdev_type *mtype, 
					struct mdev_type_attribute *attr,

					char *buf)

{

	struct vfio_ccw_private *private =

		dev_get_drvdata(mtype_get_parent_dev(mtype));

	struct vfio_ccw_private *private = dev_get_drvdata(mtype->parent->dev);



	return sprintf(buf, "%d\n", atomic_read(&private->avail));

}

drivers/vfio/mdev/mdev_core.c

+0 −10
Original line number Diff line number Diff line
@@ -23,16 +23,6 @@ static struct class_compat *mdev_bus_compat_class; 
static LIST_HEAD(mdev_list);

static DEFINE_MUTEX(mdev_list_lock);



/*

 * Used in mdev_type_attribute sysfs functions to return the parent struct

 * device

 */

struct device *mtype_get_parent_dev(struct mdev_type *mtype)

{

	return mtype->parent->dev;

}

EXPORT_SYMBOL(mtype_get_parent_dev);



/* Caller must hold parent unreg_sem read or write lock */

static void mdev_device_remove_common(struct mdev_device *mdev)

{

include/linux/mdev.h

+0 −2
Original line number Diff line number Diff line
@@ -51,8 +51,6 @@ static inline struct mdev_device *to_mdev_device(struct device *dev) 
	return container_of(dev, struct mdev_device, dev);

}



struct device *mtype_get_parent_dev(struct mdev_type *mtype);



/* interface for exporting mdev supported type attributes */

struct mdev_type_attribute {

	struct attribute attr;