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[Qemu-devel] [PATCH v10 03/19] vfio: Rearrange functions to get vfio_gro
From: |
Kirti Wankhede |
Subject: |
[Qemu-devel] [PATCH v10 03/19] vfio: Rearrange functions to get vfio_group from dev |
Date: |
Thu, 27 Oct 2016 02:59:10 +0530 |
This patch rearranges functions to get vfio_group from device
Signed-off-by: Kirti Wankhede <address@hidden>
Signed-off-by: Neo Jia <address@hidden>
Change-Id: I1f93262bdbab75094bc24b087b29da35ba70c4c6
---
drivers/vfio/vfio.c | 23 ++++++++++++++++-------
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/drivers/vfio/vfio.c b/drivers/vfio/vfio.c
index d1d70e0b011b..23bc86c1d05d 100644
--- a/drivers/vfio/vfio.c
+++ b/drivers/vfio/vfio.c
@@ -480,6 +480,21 @@ static struct vfio_group *vfio_group_get_from_minor(int
minor)
return group;
}
+static struct vfio_group *vfio_group_get_from_dev(struct device *dev)
+{
+ struct iommu_group *iommu_group;
+ struct vfio_group *group;
+
+ iommu_group = iommu_group_get(dev);
+ if (!iommu_group)
+ return NULL;
+
+ group = vfio_group_get_from_iommu(iommu_group);
+ iommu_group_put(iommu_group);
+
+ return group;
+}
+
/**
* Device objects - create, release, get, put, search
*/
@@ -811,16 +826,10 @@ EXPORT_SYMBOL_GPL(vfio_add_group_dev);
*/
struct vfio_device *vfio_device_get_from_dev(struct device *dev)
{
- struct iommu_group *iommu_group;
struct vfio_group *group;
struct vfio_device *device;
- iommu_group = iommu_group_get(dev);
- if (!iommu_group)
- return NULL;
-
- group = vfio_group_get_from_iommu(iommu_group);
- iommu_group_put(iommu_group);
+ group = vfio_group_get_from_dev(dev);
if (!group)
return NULL;
--
2.7.0
- [Qemu-devel] [PATCH v10 00/19] Add Mediated device support, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 02/19] vfio: VFIO based driver for Mediated devices, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 01/19] vfio: Mediated device Core driver, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 03/19] vfio: Rearrange functions to get vfio_group from dev,
Kirti Wankhede <=
- [Qemu-devel] [PATCH v10 04/19] vfio: Common function to increment container_users, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 05/19] vfio iommu: Added pin and unpin callback functions to vfio_iommu_driver_ops, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 06/19] vfio iommu type1: Update arguments of vfio_lock_acct, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 07/19] vfio iommu type1: Update argument of vaddr_get_pfn(), Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 08/19] vfio iommu type1: Add find_iommu_group() function, Kirti Wankhede, 2016/10/26
- [Qemu-devel] [PATCH v10 09/19] vfio iommu type1: Add support for mediated devices, Kirti Wankhede, 2016/10/26