[PATCH] powerpc: remove iSeries_Global_Device_List

We can now scan the list of device nodes instead.  This also allows us
to remove the Device_list member of struct pci_dn.

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

3 files changed, 15 insertions, 15 deletions

diff --git a/arch/powerpc/platforms/iseries/iommu.c b/arch/powerpc/platforms/iseries/iommu.c
index 3ac22065c424..75a5a1e8abb8 100644
--- a/arch/powerpc/platforms/iseries/iommu.c
+++ b/arch/powerpc/platforms/iseries/iommu.c
@@ -32,13 +32,11 @@
 #include <asm/tce.h>
 #include <asm/machdep.h>
 #include <asm/abs_addr.h>
+#include <asm/prom.h>
 #include <asm/pci-bridge.h>
 #include <asm/iseries/hv_call_xm.h>
 #include <asm/iseries/iommu.h>
 
-extern struct list_head iSeries_Global_Device_List;
-
-
 static void tce_build_iSeries(struct iommu_table *tbl, long index, long npages,
                 unsigned long uaddr, enum dma_data_direction direction)
 {
@@ -140,10 +138,15 @@ void iommu_table_getparms_iSeries(unsigned long busno,
  */
 static struct iommu_table *iommu_table_find(struct iommu_table * tbl)
 {
-        struct pci_dn *pdn;
+        struct device_node *node;
+
+        for (node = NULL; (node = of_find_all_nodes(node)); ) {
+                struct pci_dn *pdn = PCI_DN(node);
+                struct iommu_table *it;
 
-        list_for_each_entry(pdn, &iSeries_Global_Device_List, Device_List) {
-                struct iommu_table *it = pdn->iommu_table;
+                if (pdn == NULL)
+                        continue;
+                it = pdn->iommu_table;
                 if ((it != NULL) &&
                     (it->it_type == TCE_PCI) &&
                     (it->it_offset == tbl->it_offset) &&
diff --git a/arch/powerpc/platforms/iseries/pci.c b/arch/powerpc/platforms/iseries/pci.c
index 9d571e749098..5bc08d4eef49 100644
--- a/arch/powerpc/platforms/iseries/pci.c
+++ b/arch/powerpc/platforms/iseries/pci.c
@@ -50,8 +50,6 @@
  */
 static struct device_node *find_Device_Node(int bus, int devfn);
 
-LIST_HEAD(iSeries_Global_Device_List);
-
 static int Pci_Retry_Max = 3;   /* Only retry 3 times  */
 static int Pci_Error_Flag = 1;  /* Set Retry Error on. */
 
@@ -245,8 +243,6 @@ void iSeries_pcibios_init(void)
                         pdn->bussubno = *busp;
                         pdn->Irq = irq;
                         pdn->LogicalSlot = *lsn;
-                        list_add_tail(&pdn->Device_List,
-                                        &iSeries_Global_Device_List);
                 }
         }
 }
@@ -338,11 +334,13 @@ EXPORT_SYMBOL(iSeries_memcpy_fromio);
  */
 static struct device_node *find_Device_Node(int bus, int devfn)
 {
-        struct pci_dn *pdn;
+        struct device_node *node;
+
+        for (node = NULL; (node = of_find_all_nodes(node)); ) {
+                struct pci_dn *pdn = PCI_DN(node);
 
-        list_for_each_entry(pdn, &iSeries_Global_Device_List, Device_List) {
-                if ((bus == pdn->busno) && (devfn == pdn->devfn))
-                        return pdn->node;
+                if (pdn && (bus == pdn->busno) && (devfn == pdn->devfn))
+                        return node;
         }
         return NULL;
 }
diff --git a/include/asm-powerpc/pci-bridge.h b/include/asm-powerpc/pci-bridge.h
index 38de92d41a14..59794b466efc 100644
--- a/include/asm-powerpc/pci-bridge.h
+++ b/include/asm-powerpc/pci-bridge.h
@@ -79,7 +79,6 @@ struct pci_dn {
         struct  pci_dev *pcidev;        /* back-pointer to the pci device */
         struct  device_node *node;      /* back-pointer to the device_node */
 #ifdef CONFIG_PPC_ISERIES
-        struct  list_head Device_List;
         int     Irq;                    /* Assigned IRQ */
         int     Flags;                  /* Possible flags(disable/bist)*/
         u8      LogicalSlot;            /* Hv Slot Index for Tces */