powerpc/eeh: Remove device_node dependency

The patch removes struct eeh_dev::dn and the corresponding helper
functions: eeh_dev_to_of_node() and of_node_to_eeh_dev(). Instead,
eeh_dev_to_pdn() and pdn_to_eeh_dev() should be used to get the
pdn, which might contain device_node on PowerNV platform.

Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 25 insertions, 9 deletions

diff --git a/arch/powerpc/kernel/eeh_pe.c b/arch/powerpc/kernel/eeh_pe.c
index 209cd753bf46..f33ceccf6876 100644
--- a/arch/powerpc/kernel/eeh_pe.c
+++ b/arch/powerpc/kernel/eeh_pe.c
@@ -348,9 +348,12 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
 
                 /* Put the edev to PE */
                 list_add_tail(&edev->list, &pe->edevs);
-                pr_debug("EEH: Add %s to Bus PE#%x\n",
-                        edev->dn->full_name, pe->addr);
-
+                pr_debug("EEH: Add %04x:%02x:%02x.%01x to Bus PE#%x\n",
+                        edev->phb->global_number,
+                        edev->config_addr >> 8,
+                        PCI_SLOT(edev->config_addr & 0xFF),
+                        PCI_FUNC(edev->config_addr & 0xFF),
+                        pe->addr);
                 return 0;
         } else if (pe && (pe->type & EEH_PE_INVALID)) {
                 list_add_tail(&edev->list, &pe->edevs);
@@ -366,9 +369,14 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
                         parent->type &= ~(EEH_PE_INVALID | EEH_PE_KEEP);
                         parent = parent->parent;
                 }
-                pr_debug("EEH: Add %s to Device PE#%x, Parent PE#%x\n",
-                        edev->dn->full_name, pe->addr, pe->parent->addr);
 
+                pr_debug("EEH: Add %04x:%02x:%02x.%01x to Device "
+                         "PE#%x, Parent PE#%x\n",
+                        edev->phb->global_number,
+                        edev->config_addr >> 8,
+                        PCI_SLOT(edev->config_addr & 0xFF),
+                        PCI_FUNC(edev->config_addr & 0xFF),
+                        pe->addr, pe->parent->addr);
                 return 0;
         }
 
@@ -407,8 +415,13 @@ int eeh_add_to_parent_pe(struct eeh_dev *edev)
         list_add_tail(&pe->child, &parent->child_list);
         list_add_tail(&edev->list, &pe->edevs);
         edev->pe = pe;
-        pr_debug("EEH: Add %s to Device PE#%x, Parent PE#%x\n",
-                edev->dn->full_name, pe->addr, pe->parent->addr);
+        pr_debug("EEH: Add %04x:%02x:%02x.%01x to "
+                 "Device PE#%x, Parent PE#%x\n",
+                 edev->phb->global_number,
+                 edev->config_addr >> 8,
+                 PCI_SLOT(edev->config_addr & 0xFF),
+                 PCI_FUNC(edev->config_addr & 0xFF),
+                 pe->addr, pe->parent->addr);
 
         return 0;
 }
@@ -428,8 +441,11 @@ int eeh_rmv_from_parent_pe(struct eeh_dev *edev)
         int cnt;
 
         if (!edev->pe) {
-                pr_debug("%s: No PE found for EEH device %s\n",
-                         __func__, edev->dn->full_name);
+                pr_debug("%s: No PE found for device %04x:%02x:%02x.%01x\n",
+                         __func__,  edev->phb->global_number,
+                         edev->config_addr >> 8,
+                         PCI_SLOT(edev->config_addr & 0xFF),
+                         PCI_FUNC(edev->config_addr & 0xFF));
                 return -EEXIST;
         }