Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
vfio/fsl: Provide a get_region_info op
Move it out of vfio_fsl_mc_ioctl() and re-indent it.
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Acked-by: Pranjal Shrivastava <praan@google.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Link: https://lore.kernel.org/r/10-v2-2a9e24d62f1b+e10a-vfio_get_region_info_op_jgg@nvidia.com
Signed-off-by: Alex Williamson <alex@shazbot.org>
authored by
Jason Gunthorpe
and committed by
Alex Williamson
6cdae5d0
d4635df2
+32
-24
+32
-24
drivers/vfio/fsl-mc/vfio_fsl_mc.c
+32
-24
drivers/vfio/fsl-mc/vfio_fsl_mc.c
···
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fsl_mc_cleanup_irq_pool(mc_cont);
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}
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static int
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vfio_fsl_mc_ioctl_get_region_info(struct vfio_device *core_vdev,
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struct vfio_region_info __user *arg)
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{
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struct vfio_fsl_mc_device *vdev =
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container_of(core_vdev, struct vfio_fsl_mc_device, vdev);
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struct fsl_mc_device *mc_dev = vdev->mc_dev;
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struct vfio_region_info info;
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unsigned long minsz;
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minsz = offsetofend(struct vfio_region_info, offset);
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if (copy_from_user(&info, arg, minsz))
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return -EFAULT;
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if (info.argsz < minsz)
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return -EINVAL;
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if (info.index >= mc_dev->obj_desc.region_count)
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return -EINVAL;
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/* map offset to the physical address */
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info.offset = VFIO_FSL_MC_INDEX_TO_OFFSET(info.index);
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info.size = vdev->regions[info.index].size;
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info.flags = vdev->regions[info.index].flags;
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if (copy_to_user(arg, &info, minsz))
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return -EFAULT;
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return 0;
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}
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+
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static long vfio_fsl_mc_ioctl(struct vfio_device *core_vdev,
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unsigned int cmd, unsigned long arg)
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{
···
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return copy_to_user((void __user *)arg, &info, minsz) ?
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-EFAULT : 0;
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}
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case VFIO_DEVICE_GET_REGION_INFO:
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{
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struct vfio_region_info info;
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minsz = offsetofend(struct vfio_region_info, offset);
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if (copy_from_user(&info, (void __user *)arg, minsz))
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return -EFAULT;
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if (info.argsz < minsz)
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return -EINVAL;
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if (info.index >= mc_dev->obj_desc.region_count)
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return -EINVAL;
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/* map offset to the physical address */
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info.offset = VFIO_FSL_MC_INDEX_TO_OFFSET(info.index);
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info.size = vdev->regions[info.index].size;
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info.flags = vdev->regions[info.index].flags;
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if (copy_to_user((void __user *)arg, &info, minsz))
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return -EFAULT;
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return 0;
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}
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case VFIO_DEVICE_GET_IRQ_INFO:
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{
···
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.open_device = vfio_fsl_mc_open_device,
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.close_device = vfio_fsl_mc_close_device,
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.ioctl = vfio_fsl_mc_ioctl,
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.get_region_info = vfio_fsl_mc_ioctl_get_region_info,
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.read = vfio_fsl_mc_read,
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.write = vfio_fsl_mc_write,
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.mmap = vfio_fsl_mc_mmap,