diff options
| author | Joerg Roedel <jroedel@suse.de> | 2015-10-21 23:51:38 +0200 |
|---|---|---|
| committer | David Keitel <dkeitel@codeaurora.org> | 2016-03-22 11:15:29 -0700 |
| commit | f51eb4d161fc3aa92ecb1c42339889e9f38ed805 (patch) | |
| tree | bdabb38550b3af3883a072d148953451816332b3 /drivers | |
| parent | c77e52265097c9b699da51ebc138489dc43c76f2 (diff) | |
iommu: Add generic_device_group() function
This function can be used as a device_group call-back and
just allocates one iommu-group per device.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/iommu.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 0f913f6b99cf..b7669ccf866f 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -731,6 +731,21 @@ static int get_pci_alias_or_group(struct pci_dev *pdev, u16 alias, void *opaque) } /* + * Generic device_group call-back function. It just allocates one + * iommu-group per device. + */ +struct iommu_group *generic_device_group(struct device *dev) +{ + struct iommu_group *group; + + group = iommu_group_alloc(); + if (IS_ERR(group)) + return NULL; + + return group; +} + +/* * Use standard PCI bus topology, isolation features, and DMA alias quirks * to find or create an IOMMU group for a device. */ |