From 8e432bb015b6c327d016b1dca509964e189c4770 Mon Sep 17 00:00:00 2001 From: Jason Gunthorpe Date: Wed, 11 May 2022 13:12:59 -0600 Subject: vfio/mdev: Pass in a struct vfio_device * to vfio_pin/unpin_pages() Every caller has a readily available vfio_device pointer, use that instead of passing in a generic struct device. The struct vfio_device already contains the group we need so this avoids complexity, extra refcountings, and a confusing lifecycle model. Reviewed-by: Christoph Hellwig Acked-by: Eric Farman Reviewed-by: Jason J. Herne Reviewed-by: Tony Krowiak Reviewed-by: Kevin Tian Signed-off-by: Jason Gunthorpe Link: https://lore.kernel.org/r/3-v4-8045e76bf00b+13d-vfio_mdev_no_group_jgg@nvidia.com Signed-off-by: Alex Williamson --- Documentation/driver-api/vfio-mediated-device.rst | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/driver-api/vfio-mediated-device.rst b/Documentation/driver-api/vfio-mediated-device.rst index 784bbeb22adc..eded8719180f 100644 --- a/Documentation/driver-api/vfio-mediated-device.rst +++ b/Documentation/driver-api/vfio-mediated-device.rst @@ -262,10 +262,10 @@ Translation APIs for Mediated Devices The following APIs are provided for translating user pfn to host pfn in a VFIO driver:: - extern int vfio_pin_pages(struct device *dev, unsigned long *user_pfn, + int vfio_pin_pages(struct vfio_device *device, unsigned long *user_pfn, int npage, int prot, unsigned long *phys_pfn); - extern int vfio_unpin_pages(struct device *dev, unsigned long *user_pfn, + int vfio_unpin_pages(struct vfio_device *device, unsigned long *user_pfn, int npage); These functions call back into the back-end IOMMU module by using the pin_pages -- cgit v1.2.3