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| author | Joerg Roedel <jroedel@suse.de> | 2020-04-29 15:36:57 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-05-05 14:36:13 +0200 |
| commit | 522af649e57b3e3a347a8261f609f73ab4143f20 (patch) | |
| tree | 482ab678cc7439e336a7ceb1675d2c5d42be3827 /drivers/iommu/s390-iommu.c | |
| parent | 52dd3ca4176f7f87452ee4b9d9a6d2e57ac4ccb7 (diff) | |
| download | linux-stable-522af649e57b3e3a347a8261f609f73ab4143f20.tar.gz linux-stable-522af649e57b3e3a347a8261f609f73ab4143f20.tar.bz2 linux-stable-522af649e57b3e3a347a8261f609f73ab4143f20.zip | |
iommu/s390: Convert to probe/release_device() call-backs
Convert the S390 IOMMU driver to use the probe_device() and
release_device() call-backs of iommu_ops, so that the iommu core code
does the group and sysfs setup.
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20200429133712.31431-20-joro@8bytes.org
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/s390-iommu.c')
| -rw-r--r-- | drivers/iommu/s390-iommu.c | 22 |
1 files changed, 6 insertions, 16 deletions
diff --git a/drivers/iommu/s390-iommu.c b/drivers/iommu/s390-iommu.c index 1137f3ddcb85..610f0828f22d 100644 --- a/drivers/iommu/s390-iommu.c +++ b/drivers/iommu/s390-iommu.c @@ -166,21 +166,14 @@ static void s390_iommu_detach_device(struct iommu_domain *domain, } } -static int s390_iommu_add_device(struct device *dev) +static struct iommu_device *s390_iommu_probe_device(struct device *dev) { - struct iommu_group *group = iommu_group_get_for_dev(dev); struct zpci_dev *zdev = to_pci_dev(dev)->sysdata; - if (IS_ERR(group)) - return PTR_ERR(group); - - iommu_group_put(group); - iommu_device_link(&zdev->iommu_dev, dev); - - return 0; + return &zdev->iommu_dev; } -static void s390_iommu_remove_device(struct device *dev) +static void s390_iommu_release_device(struct device *dev) { struct zpci_dev *zdev = to_pci_dev(dev)->sysdata; struct iommu_domain *domain; @@ -191,7 +184,7 @@ static void s390_iommu_remove_device(struct device *dev) * to vfio-pci and completing the VFIO_SET_IOMMU ioctl (which triggers * the attach_dev), removing the device via * "echo 1 > /sys/bus/pci/devices/.../remove" won't trigger detach_dev, - * only remove_device will be called via the BUS_NOTIFY_REMOVED_DEVICE + * only release_device will be called via the BUS_NOTIFY_REMOVED_DEVICE * notifier. * * So let's call detach_dev from here if it hasn't been called before. @@ -201,9 +194,6 @@ static void s390_iommu_remove_device(struct device *dev) if (domain) s390_iommu_detach_device(domain, dev); } - - iommu_device_unlink(&zdev->iommu_dev, dev); - iommu_group_remove_device(dev); } static int s390_iommu_update_trans(struct s390_domain *s390_domain, @@ -373,8 +363,8 @@ static const struct iommu_ops s390_iommu_ops = { .map = s390_iommu_map, .unmap = s390_iommu_unmap, .iova_to_phys = s390_iommu_iova_to_phys, - .add_device = s390_iommu_add_device, - .remove_device = s390_iommu_remove_device, + .probe_device = s390_iommu_probe_device, + .release_device = s390_iommu_release_device, .device_group = generic_device_group, .pgsize_bitmap = S390_IOMMU_PGSIZES, }; |