10 Sep
2019
10 Sep
'19
8:14 a.m.
On Fri, Sep 06, 2019 at 02:44:01PM -0700, Rob Clark wrote:
@@ -674,7 +674,7 @@ int iommu_group_add_device(struct iommu_group *group, struct device *dev)
mutex_lock(&group->mutex); list_add_tail(&device->list, &group->devices);
- if (group->domain)
- if (group->domain && !(dev->driver && dev->driver->driver_manages_iommu))
Hmm, this code usually runs at enumeration time when no driver is attached to the device. Actually it would be pretty dangerous when this code runs while a driver is attached to the device. How does that change make things work for you?
Regards,
Joerg