diff mbox series

[08/13] vfio/mdev: remove mtype_get_parent_dev

Message ID 20220628051435.695540-9-hch@lst.de (mailing list archive)
State New, archived
Headers show
Series [01/13] drm/i915/gvt: fix a memory leak in intel_gvt_init_vgpu_types | expand

Commit Message

Christoph Hellwig June 28, 2022, 5:14 a.m. UTC
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>
---
 drivers/s390/cio/vfio_ccw_ops.c |  3 +--
 drivers/vfio/mdev/mdev_core.c   | 10 ----------
 include/linux/mdev.h            |  2 --
 3 files changed, 1 insertion(+), 14 deletions(-)

Comments

Jason J. Herne June 30, 2022, 4:24 p.m. UTC | #1
On 6/28/22 01:14, Christoph Hellwig wrote:
> 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>
> ---
>   drivers/s390/cio/vfio_ccw_ops.c |  3 +--
>   drivers/vfio/mdev/mdev_core.c   | 10 ----------
>   include/linux/mdev.h            |  2 --
>   3 files changed, 1 insertion(+), 14 deletions(-)
> 
> diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
> index 25b8d42a522ac..43d53736dfe3c 100644
> --- a/drivers/s390/cio/vfio_ccw_ops.c
> +++ b/drivers/s390/cio/vfio_ccw_ops.c
> @@ -88,8 +88,7 @@ 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));
Reviewed-by: Jason J. Herne <jjherne@linux.ibm.com>
diff mbox series

Patch

diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index 25b8d42a522ac..43d53736dfe3c 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -88,8 +88,7 @@  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));
 }
diff --git a/drivers/vfio/mdev/mdev_core.c b/drivers/vfio/mdev/mdev_core.c
index 75628759a3bf0..93f8caf2e5f77 100644
--- a/drivers/vfio/mdev/mdev_core.c
+++ b/drivers/vfio/mdev/mdev_core.c
@@ -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)
 {
diff --git a/include/linux/mdev.h b/include/linux/mdev.h
index 83c85a0247f25..ecf964d34f2ca 100644
--- a/include/linux/mdev.h
+++ b/include/linux/mdev.h
@@ -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;