From: Jason Gunthorpe <jgg@nvidia.com>
To: David Airlie <airlied@linux.ie>,
Tony Krowiak <akrowiak@linux.ibm.com>,
Alex Williamson <alex.williamson@redhat.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
Jonathan Corbet <corbet@lwn.net>, Daniel Vetter <daniel@ffwll.ch>,
Diana Craciun <diana.craciun@oss.nxp.com>,
dri-devel@lists.freedesktop.org,
Eric Auger <eric.auger@redhat.com>,
Eric Farman <farman@linux.ibm.com>,
Harald Freudenberger <freude@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Heiko Carstens <hca@linux.ibm.com>,
intel-gfx@lists.freedesktop.org,
intel-gvt-dev@lists.freedesktop.org,
Jani Nikula <jani.nikula@linux.intel.com>,
Jason Herne <jjherne@linux.ibm.com>,
Joonas Lahtinen <joonas.lahtinen@linux.intel.com>,
kvm@vger.kernel.org, Kirti Wankhede <kwankhede@nvidia.com>,
linux-doc@vger.kernel.org, linux-s390@vger.kernel.org,
Matthew Rosato <mjrosato@linux.ibm.com>,
Peter Oberparleiter <oberpar@linux.ibm.com>,
Halil Pasic <pasic@linux.ibm.com>,
Rodrigo Vivi <rodrigo.vivi@intel.com>,
Vineeth Vijayan <vneethv@linux.ibm.com>,
Zhi Wang <zhi.a.wang@intel.com>
Cc: "Raj, Ashok" <ashok.raj@intel.com>,
Christoph Hellwig <hch@lst.de>,
Leon Romanovsky <leonro@nvidia.com>,
Max Gurtovoy <mgurtovoy@nvidia.com>,
Yishai Hadas <yishaih@nvidia.com>,
Zhenyu Wang <zhenyuw@linux.intel.com>
Subject: [PATCH v3 14/14] vfio: Remove struct vfio_device_ops open/release
Date: Wed, 28 Jul 2021 21:49:23 -0300 [thread overview]
Message-ID: <14-v3-6c9e19cc7d44+15613-vfio_reflck_jgg@nvidia.com> (raw)
In-Reply-To: <0-v3-6c9e19cc7d44+15613-vfio_reflck_jgg@nvidia.com>
Nothing uses this anymore, delete it.
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
---
drivers/vfio/mdev/vfio_mdev.c | 22 ----------------------
drivers/vfio/vfio.c | 14 +-------------
include/linux/mdev.h | 7 -------
include/linux/vfio.h | 4 ----
4 files changed, 1 insertion(+), 46 deletions(-)
diff --git a/drivers/vfio/mdev/vfio_mdev.c b/drivers/vfio/mdev/vfio_mdev.c
index 725cd2fe675190..5174974e5fb5f9 100644
--- a/drivers/vfio/mdev/vfio_mdev.c
+++ b/drivers/vfio/mdev/vfio_mdev.c
@@ -37,26 +37,6 @@ static void vfio_mdev_close_device(struct vfio_device *core_vdev)
parent->ops->close_device(mdev);
}
-static int vfio_mdev_open(struct vfio_device *core_vdev)
-{
- struct mdev_device *mdev = to_mdev_device(core_vdev->dev);
- struct mdev_parent *parent = mdev->type->parent;
-
- if (unlikely(!parent->ops->open))
- return -EINVAL;
-
- return parent->ops->open(mdev);
-}
-
-static void vfio_mdev_release(struct vfio_device *core_vdev)
-{
- struct mdev_device *mdev = to_mdev_device(core_vdev->dev);
- struct mdev_parent *parent = mdev->type->parent;
-
- if (likely(parent->ops->release))
- parent->ops->release(mdev);
-}
-
static long vfio_mdev_unlocked_ioctl(struct vfio_device *core_vdev,
unsigned int cmd, unsigned long arg)
{
@@ -122,8 +102,6 @@ static const struct vfio_device_ops vfio_mdev_dev_ops = {
.name = "vfio-mdev",
.open_device = vfio_mdev_open_device,
.close_device = vfio_mdev_close_device,
- .open = vfio_mdev_open,
- .release = vfio_mdev_release,
.ioctl = vfio_mdev_unlocked_ioctl,
.read = vfio_mdev_read,
.write = vfio_mdev_write,
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 9cc17768c42554..3c034fe14ccb03 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1470,19 +1470,13 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
}
mutex_unlock(&device->dev_set->lock);
- if (device->ops->open) {
- ret = device->ops->open(device);
- if (ret)
- goto err_close_device;
- }
-
/*
* We can't use anon_inode_getfd() because we need to modify
* the f_mode flags directly to allow more than just ioctls
*/
fdno = ret = get_unused_fd_flags(O_CLOEXEC);
if (ret < 0)
- goto err_release;
+ goto err_close_device;
filep = anon_inode_getfile("[vfio-device]", &vfio_device_fops,
device, O_RDWR);
@@ -1509,9 +1503,6 @@ static int vfio_group_get_device_fd(struct vfio_group *group, char *buf)
err_fd:
put_unused_fd(fdno);
-err_release:
- if (device->ops->release)
- device->ops->release(device);
err_close_device:
mutex_lock(&device->dev_set->lock);
if (device->open_count == 1 && device->ops->close_device)
@@ -1659,9 +1650,6 @@ static int vfio_device_fops_release(struct inode *inode, struct file *filep)
{
struct vfio_device *device = filep->private_data;
- if (device->ops->release)
- device->ops->release(device);
-
mutex_lock(&device->dev_set->lock);
if (!--device->open_count && device->ops->close_device)
device->ops->close_device(device);
diff --git a/include/linux/mdev.h b/include/linux/mdev.h
index cb5b7ed1d7c30d..68427e8fadebd6 100644
--- a/include/linux/mdev.h
+++ b/include/linux/mdev.h
@@ -72,11 +72,6 @@ struct device *mtype_get_parent_dev(struct mdev_type *mtype);
* @mdev: mdev_device device structure which is being
* destroyed
* Returns integer: success (0) or error (< 0)
- * @open: Open mediated device.
- * @mdev: mediated device.
- * Returns integer: success (0) or error (< 0)
- * @release: release mediated device
- * @mdev: mediated device.
* @read: Read emulation callback
* @mdev: mediated device structure
* @buf: read buffer
@@ -113,8 +108,6 @@ struct mdev_parent_ops {
int (*remove)(struct mdev_device *mdev);
int (*open_device)(struct mdev_device *mdev);
void (*close_device)(struct mdev_device *mdev);
- int (*open)(struct mdev_device *mdev);
- void (*release)(struct mdev_device *mdev);
ssize_t (*read)(struct mdev_device *mdev, char __user *buf,
size_t count, loff_t *ppos);
ssize_t (*write)(struct mdev_device *mdev, const char __user *buf,
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index f0e6a72875e471..b53a9557884ada 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -46,8 +46,6 @@ struct vfio_device {
*
* @open_device: Called when the first file descriptor is opened for this device
* @close_device: Opposite of open_device
- * @open: Called when userspace creates new file descriptor for device
- * @release: Called when userspace releases file descriptor for device
* @read: Perform read(2) on device file descriptor
* @write: Perform write(2) on device file descriptor
* @ioctl: Perform ioctl(2) on device file descriptor, supporting VFIO_DEVICE_*
@@ -62,8 +60,6 @@ struct vfio_device_ops {
char *name;
int (*open_device)(struct vfio_device *vdev);
void (*close_device)(struct vfio_device *vdev);
- int (*open)(struct vfio_device *vdev);
- void (*release)(struct vfio_device *vdev);
ssize_t (*read)(struct vfio_device *vdev, char __user *buf,
size_t count, loff_t *ppos);
ssize_t (*write)(struct vfio_device *vdev, const char __user *buf,
--
2.32.0
prev parent reply other threads:[~2021-07-29 0:50 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-29 0:49 [PATCH v3 00/14] Provide core infrastructure for managing open/release Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 01/14] vfio/samples: Remove module get/put Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 02/14] vfio/mbochs: Fix missing error unwind of mbochs_used_mbytes Jason Gunthorpe
2021-07-29 7:21 ` Christoph Hellwig
2021-07-29 0:49 ` [PATCH v3 03/14] vfio: Introduce a vfio_uninit_group_dev() API call Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 04/14] vfio: Provide better generic support for open/release vfio_device_ops Jason Gunthorpe
2021-07-29 7:26 ` Christoph Hellwig
2021-07-29 0:49 ` [PATCH v3 05/14] vfio/samples: Delete useless open/close Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 06/14] vfio/fsl: Move to the device set infrastructure Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 07/14] vfio/platform: Use open_device() instead of open coding a refcnt scheme Jason Gunthorpe
2021-08-05 12:37 ` Eric Auger
2021-07-29 0:49 ` [PATCH v3 08/14] vfio/pci: Move to the device set infrastructure Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 09/14] vfio/pci: Change vfio_pci_try_bus_reset() to use the dev_set Jason Gunthorpe
2021-07-29 7:30 ` Christoph Hellwig
2021-08-03 16:34 ` Alex Williamson
2021-08-03 16:41 ` Jason Gunthorpe
2021-08-03 16:52 ` Alex Williamson
2021-08-05 11:47 ` Jason Gunthorpe
2021-08-05 17:33 ` Alex Williamson
2021-08-05 23:05 ` Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 10/14] vfio/pci: Reorganize VFIO_DEVICE_PCI_HOT_RESET to use the device set Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 11/14] vfio/mbochs: Fix close when multiple device FDs are open Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 12/14] vfio/ap,ccw: Fix open/close " Jason Gunthorpe
2021-07-29 0:49 ` [PATCH v3 13/14] vfio/gvt: " Jason Gunthorpe
2021-07-29 0:49 ` Jason Gunthorpe [this message]
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