diff options
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 422d4e9f980b..83688db121f0 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1826,30 +1826,6 @@ int bus_iommu_probe(struct bus_type *bus) return ret; } -/** - * bus_set_iommu - set iommu-callbacks for the bus - * @bus: bus. - * @ops: the callbacks provided by the iommu-driver - * - * This function is called by an iommu driver to set the iommu methods - * used for a particular bus. Drivers for devices on that bus can use - * the iommu-api after these ops are registered. - * This special function is needed because IOMMUs are usually devices on - * the bus itself, so the iommu drivers are not initialized when the bus - * is set up. With this function the iommu-driver can set the iommu-ops - * afterwards. - */ -int bus_set_iommu(struct bus_type *bus, const struct iommu_ops *ops) -{ - if (bus->iommu_ops && ops && bus->iommu_ops != ops) - return -EBUSY; - - bus->iommu_ops = ops; - - return 0; -} -EXPORT_SYMBOL_GPL(bus_set_iommu); - bool iommu_present(struct bus_type *bus) { return bus->iommu_ops != NULL; |