Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd

Pull iommufd updates from Jason Gunthorpe:
 "Some polishing and small fixes for iommufd:

   - Remove IOMMU_CAP_INTR_REMAP, instead rely on the interrupt
     subsystem

   - Use GFP_KERNEL_ACCOUNT inside the iommu_domains

   - Support VFIO_NOIOMMU mode with iommufd

   - Various typos

   - A list corruption bug if HWPTs are used for attach"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Do not add the same hwpt to the ioas->hwpt_list twice
  iommufd: Make sure to zero vfio_iommu_type1_info before copying to user
  vfio: Support VFIO_NOIOMMU with iommufd
  iommufd: Add three missing structures in ucmd_buffer
  selftests: iommu: Fix test_cmd_destroy_access() call in user_copy
  iommu: Remove IOMMU_CAP_INTR_REMAP
  irq/s390: Add arch_is_isolated_msi() for s390
  iommu/x86: Replace IOMMU_CAP_INTR_REMAP with IRQ_DOMAIN_FLAG_ISOLATED_MSI
  genirq/msi: Rename IRQ_DOMAIN_MSI_REMAP to IRQ_DOMAIN_ISOLATED_MSI
  genirq/irqdomain: Remove unused irq_domain_check_msi_remap() code
  iommufd: Convert to msi_device_has_isolated_msi()
  vfio/type1: Convert to iommu_group_has_isolated_msi()
  iommu: Add iommu_group_has_isolated_msi()
  genirq/msi: Add msi_device_has_isolated_msi()

1 files changed, 0 insertions, 39 deletions

diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index aa5b7eeeceb8..7d4fc6479062 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -470,31 +470,6 @@ struct irq_domain *irq_find_matching_fwspec(struct irq_fwspec *fwspec,
 EXPORT_SYMBOL_GPL(irq_find_matching_fwspec);
 
 /**
- * irq_domain_check_msi_remap - Check whether all MSI irq domains implement
- * IRQ remapping
- *
- * Return: false if any MSI irq domain does not support IRQ remapping,
- * true otherwise (including if there is no MSI irq domain)
- */
-bool irq_domain_check_msi_remap(void)
-{
-	struct irq_domain *h;
-	bool ret = true;
-
-	mutex_lock(&irq_domain_mutex);
-	list_for_each_entry(h, &irq_domain_list, link) {
-		if (irq_domain_is_msi(h) &&
-		    !irq_domain_hierarchical_is_msi_remap(h)) {
-			ret = false;
-			break;
-		}
-	}
-	mutex_unlock(&irq_domain_mutex);
-	return ret;
-}
-EXPORT_SYMBOL_GPL(irq_domain_check_msi_remap);
-
-/**
  * irq_set_default_host() - Set a "default" irq domain
  * @domain: default domain pointer
  *
@@ -1890,20 +1865,6 @@ static void irq_domain_check_hierarchy(struct irq_domain *domain)
 	if (domain->ops->alloc)
 		domain->flags |= IRQ_DOMAIN_FLAG_HIERARCHY;
 }
-
-/**
- * irq_domain_hierarchical_is_msi_remap - Check if the domain or any
- * parent has MSI remapping support
- * @domain: domain pointer
- */
-bool irq_domain_hierarchical_is_msi_remap(struct irq_domain *domain)
-{
-	for (; domain; domain = domain->parent) {
-		if (irq_domain_is_msi_remap(domain))
-			return true;
-	}
-	return false;
-}
 #else	/* CONFIG_IRQ_DOMAIN_HIERARCHY */
 /**
  * irq_domain_get_irq_data - Get irq_data associated with @virq and @domain