From: Kirti Wankhede <kwankhede@nvidia.com>
To: <alex.williamson@redhat.com>, <pbonzini@redhat.com>,
<kraxel@redhat.com>, <cjia@nvidia.com>
Cc: <qemu-devel@nongnu.org>, <kvm@vger.kernel.org>,
<kevin.tian@intel.com>, <jike.song@intel.com>,
<bjsdjshi@linux.vnet.ibm.com>, <linux-kernel@vger.kernel.org>,
Kirti Wankhede <kwankhede@nvidia.com>
Subject: [PATCH v11 03/22] vfio: Rearrange functions to get vfio_group from dev
Date: Sat, 5 Nov 2016 02:40:37 +0530 [thread overview]
Message-ID: <1478293856-8191-4-git-send-email-kwankhede@nvidia.com> (raw)
In-Reply-To: <1478293856-8191-1-git-send-email-kwankhede@nvidia.com>
This patch rearranges functions to get vfio_group from device
Signed-off-by: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Neo Jia <cjia@nvidia.com>
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
next prev parent reply other threads:[~2016-11-04 21:11 UTC|newest]
Thread overview: 68+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-04 21:10 [PATCH v11 00/22] Add Mediated device support Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 01/22] vfio: Mediated device Core driver Kirti Wankhede
2016-11-07 6:40 ` Tian, Kevin
[not found] ` <20161108092552.GA2090@bjsdjshi@linux.vnet.ibm.com>
2016-11-08 21:06 ` Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 02/22] vfio: VFIO based driver for Mediated devices Kirti Wankhede
2016-11-04 21:10 ` Kirti Wankhede [this message]
2016-11-04 21:10 ` [PATCH v11 04/22] vfio: Common function to increment container_users Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 05/22] vfio iommu: Added pin and unpin callback functions to vfio_iommu_driver_ops Kirti Wankhede
2016-11-07 19:36 ` Alex Williamson
2016-11-08 13:55 ` Kirti Wankhede
2016-11-08 16:39 ` Alex Williamson
2016-11-08 18:47 ` Kirti Wankhede
2016-11-08 19:14 ` Alex Williamson
2016-11-04 21:10 ` [PATCH v11 06/22] vfio iommu type1: Update arguments of vfio_lock_acct Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 07/22] vfio iommu type1: Update argument of vaddr_get_pfn() Kirti Wankhede
2016-11-07 8:42 ` Alexey Kardashevskiy
2016-11-04 21:10 ` [PATCH v11 08/22] vfio iommu type1: Add find_iommu_group() function Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 09/22] vfio iommu type1: Add task structure to vfio_dma Kirti Wankhede
2016-11-07 21:03 ` Alex Williamson
2016-11-08 14:13 ` Kirti Wankhede
2016-11-08 16:43 ` Alex Williamson
2016-11-04 21:10 ` [PATCH v11 10/22] vfio iommu type1: Add support for mediated devices Kirti Wankhede
2016-11-07 23:16 ` Alex Williamson
2016-11-08 2:20 ` Jike Song
2016-11-08 16:18 ` Alex Williamson
2016-11-08 15:06 ` Kirti Wankhede
2016-11-08 17:05 ` Alex Williamson
2016-11-08 6:52 ` Alexey Kardashevskiy
2016-11-15 5:17 ` Alexey Kardashevskiy
2016-11-15 6:33 ` Kirti Wankhede
2016-11-15 7:27 ` Alexey Kardashevskiy
2016-11-15 7:56 ` Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 11/22] vfio iommu: Add blocking notifier to notify DMA_UNMAP Kirti Wankhede
2016-11-07 23:45 ` Alex Williamson
2016-11-08 16:26 ` Kirti Wankhede
2016-11-08 17:46 ` Alex Williamson
2016-11-08 19:59 ` Kirti Wankhede
2016-11-08 21:28 ` Alex Williamson
2016-11-14 7:52 ` Kirti Wankhede
2016-11-14 15:37 ` Alex Williamson
2016-11-04 21:10 ` [PATCH v11 12/22] vfio: Add notifier callback to parent's ops structure of mdev Kirti Wankhede
2016-11-07 23:51 ` Alex Williamson
2016-11-04 21:10 ` [PATCH v11 13/22] vfio: Introduce common function to add capabilities Kirti Wankhede
2016-11-08 7:29 ` Alexey Kardashevskiy
2016-11-08 20:46 ` Kirti Wankhede
2016-11-08 21:42 ` Alex Williamson
2016-11-09 2:23 ` Alexey Kardashevskiy
2016-11-04 21:10 ` [PATCH v11 14/22] vfio_pci: Update vfio_pci to use vfio_info_add_capability() Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 15/22] vfio: Introduce vfio_set_irqs_validate_and_prepare() Kirti Wankhede
2016-11-08 8:46 ` Alexey Kardashevskiy
2016-11-08 20:22 ` Kirti Wankhede
2016-11-09 3:07 ` Alexey Kardashevskiy
2016-11-09 3:35 ` Alex Williamson
2016-11-04 21:10 ` [PATCH v11 16/22] vfio_pci: Updated to use vfio_set_irqs_validate_and_prepare() Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 17/22] vfio_platform: " Kirti Wankhede
2016-11-08 8:52 ` Alexey Kardashevskiy
2016-11-08 20:41 ` Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 18/22] vfio: Define device_api strings Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 19/22] docs: Add Documentation for Mediated devices Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 20/22] docs: Sysfs ABI for mediated device framework Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 21/22] docs: Sample driver to demonstrate how to use Mediated " Kirti Wankhede
2016-11-04 21:10 ` [PATCH v11 22/22] MAINTAINERS: Add entry VFIO based Mediated device drivers Kirti Wankhede
2016-11-07 3:30 ` [PATCH v11 00/22] Add Mediated device support Alexey Kardashevskiy
2016-11-07 3:59 ` Kirti Wankhede
2016-11-07 5:06 ` Kirti Wankhede
2016-11-07 6:15 ` Alexey Kardashevskiy
2016-11-07 6:36 ` Kirti Wankhede
2016-11-07 6:46 ` Alexey Kardashevskiy
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