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authorChristoph Hellwig <hch@lst.de>2021-09-24 17:56:58 +0200
committerAlex Williamson <alex.williamson@redhat.com>2021-09-30 12:46:44 -0600
commit67462037872d5ca57dc4674cccff191947b9b43e (patch)
tree47622d8d83521b9a7e0b911f5464fca05a3c665d /drivers/vfio
parentc68ea0d00ad82428154aed890ec9f793e460fa1c (diff)
vfio: remove unused method from vfio_iommu_driver_ops
The read, write and mmap methods are never implemented, so remove them. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Link: https://lore.kernel.org/r/20210924155705.4258-9-hch@lst.de Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Diffstat (limited to 'drivers/vfio')
-rw-r--r--drivers/vfio/vfio.c50
1 files changed, 0 insertions, 50 deletions
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index 2508c8c39840..2c1c7316aa19 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -1276,62 +1276,12 @@ static int vfio_fops_release(struct inode *inode, struct file *filep)
return 0;
}
-/*
- * Once an iommu driver is set, we optionally pass read/write/mmap
- * on to the driver, allowing management interfaces beyond ioctl.
- */
-static ssize_t vfio_fops_read(struct file *filep, char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct vfio_container *container = filep->private_data;
- struct vfio_iommu_driver *driver;
- ssize_t ret = -EINVAL;
-
- driver = container->iommu_driver;
- if (likely(driver && driver->ops->read))
- ret = driver->ops->read(container->iommu_data,
- buf, count, ppos);
-
- return ret;
-}
-
-static ssize_t vfio_fops_write(struct file *filep, const char __user *buf,
- size_t count, loff_t *ppos)
-{
- struct vfio_container *container = filep->private_data;
- struct vfio_iommu_driver *driver;
- ssize_t ret = -EINVAL;
-
- driver = container->iommu_driver;
- if (likely(driver && driver->ops->write))
- ret = driver->ops->write(container->iommu_data,
- buf, count, ppos);
-
- return ret;
-}
-
-static int vfio_fops_mmap(struct file *filep, struct vm_area_struct *vma)
-{
- struct vfio_container *container = filep->private_data;
- struct vfio_iommu_driver *driver;
- int ret = -EINVAL;
-
- driver = container->iommu_driver;
- if (likely(driver && driver->ops->mmap))
- ret = driver->ops->mmap(container->iommu_data, vma);
-
- return ret;
-}
-
static const struct file_operations vfio_fops = {
.owner = THIS_MODULE,
.open = vfio_fops_open,
.release = vfio_fops_release,
- .read = vfio_fops_read,
- .write = vfio_fops_write,
.unlocked_ioctl = vfio_fops_unl_ioctl,
.compat_ioctl = compat_ptr_ioctl,
- .mmap = vfio_fops_mmap,
};
/**