powerpc/pci: Don't add bogus empty resources to PHBs

When converting to use the new pci_add_resource_offset() we didn't
properly account for empty resources (0 flags) and add those bogons
to the PHBs. The result is some annoying messages in the log.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

1 files changed, 16 insertions, 14 deletions

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index d5811d8cc2c6..cf00588b0023 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1540,12 +1540,16 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
                 res->flags = IORESOURCE_IO;
 #endif /* CONFIG_PPC32 */
         }
+        if (res->flags) {
+                pr_debug("PCI: PHB IO resource    = %016llx-%016llx [%lx]\n",
+                         (unsigned long long)res->start,
+                         (unsigned long long)res->end,
+                         (unsigned long)res->flags);
+                pci_add_resource_offset(resources, res, pcibios_io_space_offset(hose));
 
-        pr_debug("PCI: PHB IO resource    = %016llx-%016llx [%lx]\n",
-                 (unsigned long long)res->start,
-                 (unsigned long long)res->end,
-                 (unsigned long)res->flags);
-        pci_add_resource_offset(resources, res, pcibios_io_space_offset(hose));
+                pr_debug("PCI: PHB IO  offset     = %08lx\n",
+                         (unsigned long)hose->io_base_virt - _IO_BASE);
+        }
 
         /* Hookup PHB Memory resources */
         for (i = 0; i < 3; ++i) {
@@ -1563,19 +1567,17 @@ static void pcibios_setup_phb_resources(struct pci_controller *hose,
                         res->flags = IORESOURCE_MEM;
 #endif /* CONFIG_PPC32 */
                 }
-
-                pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", i,
-                         (unsigned long long)res->start,
-                         (unsigned long long)res->end,
-                         (unsigned long)res->flags);
-                pci_add_resource_offset(resources, res, hose->pci_mem_offset);
+                if (res->flags) {
+                        pr_debug("PCI: PHB MEM resource %d = %016llx-%016llx [%lx]\n", i,
+                                 (unsigned long long)res->start,
+                                 (unsigned long long)res->end,
+                                 (unsigned long)res->flags);
+                        pci_add_resource_offset(resources, res, hose->pci_mem_offset);
+                }
         }
 
         pr_debug("PCI: PHB MEM offset     = %016llx\n",
                  (unsigned long long)hose->pci_mem_offset);
-        pr_debug("PCI: PHB IO  offset     = %08lx\n",
-                 (unsigned long)hose->io_base_virt - _IO_BASE);
-
 }
 
 /*