[POWERPC] iommu_free_table doesn't need the device_node

It only needs the iommu_table address.  It also makes use of the node
name to print error messages.  So just pass it the things it needs.
This reduces the places that know about the pci_dn by one.

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 3 insertions, 5 deletions

diff --git a/arch/powerpc/kernel/iommu.c b/arch/powerpc/kernel/iommu.c
index 2d0c9ef555e9..47c3fe55242f 100644
--- a/arch/powerpc/kernel/iommu.c
+++ b/arch/powerpc/kernel/iommu.c
@@ -526,16 +526,14 @@ struct iommu_table *iommu_init_table(struct iommu_table *tbl, int nid)
         return tbl;
 }
 
-void iommu_free_table(struct device_node *dn)
+void iommu_free_table(struct iommu_table *tbl, const char *node_name)
 {
-        struct pci_dn *pdn = dn->data;
-        struct iommu_table *tbl = pdn->iommu_table;
         unsigned long bitmap_sz, i;
         unsigned int order;
 
         if (!tbl || !tbl->it_map) {
                 printk(KERN_ERR "%s: expected TCE map for %s\n", __FUNCTION__,
-                                dn->full_name);
+                                node_name);
                 return;
         }
 
@@ -544,7 +542,7 @@ void iommu_free_table(struct device_node *dn)
         for (i = 0; i < (tbl->it_size/64); i++) {
                 if (tbl->it_map[i] != 0) {
                         printk(KERN_WARNING "%s: Unexpected TCEs for %s\n",
-                                __FUNCTION__, dn->full_name);
+                                __FUNCTION__, node_name);
                         break;
                 }
         }