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| author | Robin Murphy <robin.murphy@arm.com> | 2022-08-15 17:20:17 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-09-07 14:26:17 +0200 |
| commit | 29e932295bfaba792d29e66e8be0637ff3994724 (patch) | |
| tree | 292e5813ae7780764bfeb890312c20e828cf7b3e /drivers/iommu/iommu.c | |
| parent | 19d3607c74bc0332f0ee3a2d54ead6e792c0dce9 (diff) | |
| download | linux-29e932295bfaba792d29e66e8be0637ff3994724.tar.bz2 | |
iommu: Clean up bus_set_iommu()
Clean up the remaining trivial bus_set_iommu() callsites along
with the implementation. Now drivers only have to know and care
about iommu_device instances, phew!
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Tested-by: Matthew Rosato <mjrosato@linux.ibm.com> # s390
Tested-by: Niklas Schnelle <schnelle@linux.ibm.com> # s390
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/ea383d5f4d74ffe200ab61248e5de6e95846180a.1660572783.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
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; |