diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/iommu/iommu.c | 25 |
1 files changed, 0 insertions, 25 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index ce72edd34f07..4c29a4bc368b 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -1841,31 +1841,6 @@ int bus_iommu_probe(const struct bus_type *bus) } /** - * iommu_present() - make platform-specific assumptions about an IOMMU - * @bus: bus to check - * - * Do not use this function. You want device_iommu_mapped() instead. - * - * Return: true if some IOMMU is present and aware of devices on the given bus; - * in general it may not be the only IOMMU, and it may not have anything to do - * with whatever device you are ultimately interested in. - */ -bool iommu_present(const struct bus_type *bus) -{ - bool ret = false; - - for (int i = 0; i < ARRAY_SIZE(iommu_buses); i++) { - if (iommu_buses[i] == bus) { - spin_lock(&iommu_device_lock); - ret = !list_empty(&iommu_device_list); - spin_unlock(&iommu_device_lock); - } - } - return ret; -} -EXPORT_SYMBOL_GPL(iommu_present); - -/** * device_iommu_capable() - check for a general IOMMU capability * @dev: device to which the capability would be relevant, if available * @cap: IOMMU capability |