x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc

This function doesn't use the parameter anymore so it can be
removed.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>

1 files changed, 4 insertions, 8 deletions

diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index d10195b685a7..17e83ecb8b22 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1188,7 +1188,7 @@ static void dma_ops_domain_free(struct dma_ops_domain *dom)
  * It also intializes the page table and the address allocator data
  * structures required for the dma_ops interface
  */
-static struct dma_ops_domain *dma_ops_domain_alloc(struct amd_iommu *iommu)
+static struct dma_ops_domain *dma_ops_domain_alloc(void)
 {
         struct dma_ops_domain *dma_dom;
 
@@ -1443,7 +1443,7 @@ static int device_change_notifier(struct notifier_block *nb,
                 dma_domain = find_protection_domain(devid);
                 if (dma_domain)
                         goto out;
-                dma_domain = dma_ops_domain_alloc(iommu);
+                dma_domain = dma_ops_domain_alloc();
                 if (!dma_domain)
                         goto out;
                 dma_domain->target_dev = devid;
@@ -2085,7 +2085,6 @@ static void prealloc_protection_domains(void)
 {
         struct pci_dev *dev = NULL;
         struct dma_ops_domain *dma_dom;
-        struct amd_iommu *iommu;
         u16 devid;
 
         while ((dev = pci_get_device(PCI_ANY_ID, PCI_ANY_ID, dev)) != NULL) {
@@ -2100,10 +2099,7 @@ static void prealloc_protection_domains(void)
 
                 devid = get_device_id(&dev->dev);
 
-                iommu = amd_iommu_rlookup_table[devid];
-                if (!iommu)
-                        continue;
-                dma_dom = dma_ops_domain_alloc(iommu);
+                dma_dom = dma_ops_domain_alloc();
                 if (!dma_dom)
                         continue;
                 init_unity_mappings_for_device(dma_dom, devid);
@@ -2139,7 +2135,7 @@ int __init amd_iommu_init_dma_ops(void)
          * protection domain will be assigned to the default one.
          */
         for_each_iommu(iommu) {
-                iommu->default_dom = dma_ops_domain_alloc(iommu);
+                iommu->default_dom = dma_ops_domain_alloc();
                 if (iommu->default_dom == NULL)
                         return -ENOMEM;
                 iommu->default_dom->domain.flags |= PD_DEFAULT_MASK;