[PATCH v4 06/11] vfio/ccw: Flatten MDEV device (un)register

Eric Farman
2022-07-07T13:58:52Z

The vfio_ccw_mdev_(un)reg routines are merely vfio-ccw routines that
pass control to mdev_(un)register_device. Since there's only one
caller of each, let's just call the mdev routines directly.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.ibm.com>
---
drivers/s390/cio/vfio_ccw_drv.c | 4 ++--
drivers/s390/cio/vfio_ccw_ops.c | 10 ----------
drivers/s390/cio/vfio_ccw_private.h | 3 ---
3 files changed, 2 insertions(+), 15 deletions(-)

diff --git a/drivers/s390/cio/vfio_ccw_drv.c b/drivers/s390/cio/vfio_ccw_drv.c
index 279ad2161f17..fe87a2652a22 100644
--- a/drivers/s390/cio/vfio_ccw_drv.c
+++ b/drivers/s390/cio/vfio_ccw_drv.c
@@ -240,7 +240,7 @@ static int vfio_ccw_sch_probe(struct subchannel *sch)

private->state = VFIO_CCW_STATE_STANDBY;

- ret = vfio_ccw_mdev_reg(sch);
+ ret = mdev_register_device(&sch->dev, &vfio_ccw_mdev_driver);
if (ret)
goto out_disable;

@@ -262,7 +262,7 @@ static void vfio_ccw_sch_remove(struct subchannel *sch)
struct vfio_ccw_private *private = dev_get_drvdata(&sch->dev);

vfio_ccw_sch_quiesce(sch);
- vfio_ccw_mdev_unreg(sch);
+ mdev_unregister_device(&sch->dev);

dev_set_drvdata(&sch->dev, NULL);

diff --git a/drivers/s390/cio/vfio_ccw_ops.c b/drivers/s390/cio/vfio_ccw_ops.c
index 81377270d4a7..a7ea9358e461 100644
--- a/drivers/s390/cio/vfio_ccw_ops.c
+++ b/drivers/s390/cio/vfio_ccw_ops.c
@@ -654,13 +654,3 @@ struct mdev_driver vfio_ccw_mdev_driver = {
.remove = vfio_ccw_mdev_remove,
.supported_type_groups = mdev_type_groups,
};
-
-int vfio_ccw_mdev_reg(struct subchannel *sch)
-{
- return mdev_register_device(&sch->dev, &vfio_ccw_mdev_driver);
-}
-
-void vfio_ccw_mdev_unreg(struct subchannel *sch)
-{
- mdev_unregister_device(&sch->dev);
-}
diff --git a/drivers/s390/cio/vfio_ccw_private.h b/drivers/s390/cio/vfio_ccw_private.h
index 5891bea8ce41..a2584c130e79 100644
--- a/drivers/s390/cio/vfio_ccw_private.h
+++ b/drivers/s390/cio/vfio_ccw_private.h
@@ -117,9 +117,6 @@ struct vfio_ccw_private {
struct work_struct crw_work;
} __aligned(8);

-int vfio_ccw_mdev_reg(struct subchannel *sch);
-void vfio_ccw_mdev_unreg(struct subchannel *sch);
-
int vfio_ccw_sch_quiesce(struct subchannel *sch);

extern struct mdev_driver vfio_ccw_mdev_driver;
--
2.34.1