PCI: replace struct pci_bus secondary/subordinate with busn_res

Replace the struct pci_bus secondary/subordinate members with the
struct resource busn_res.  Later we'll build a resource tree of these
bus numbers.

[bhelgaas: changelog]
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>

15 files changed, 24 insertions, 24 deletions

diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 1a629636cc16..53229a496311 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -359,7 +359,7 @@ common_init_pci(void)
                                         hose, &resources);
                 hose->bus = bus;
                 hose->need_domain_info = need_domain_info;
-                next_busno = bus->subordinate + 1;
+                next_busno = bus->busn_res.end + 1;
                 /* Don't allow 8-bit bus number overflow inside the hose -
                    reserve some space for bridges. */ 
                 if (next_busno > 224) {
diff --git a/arch/arm/kernel/bios32.c b/arch/arm/kernel/bios32.c
index 25552508c3fd..f07710849b58 100644
--- a/arch/arm/kernel/bios32.c
+++ b/arch/arm/kernel/bios32.c
@@ -461,7 +461,7 @@ static void __init pcibios_init_hw(struct hw_pci *hw, struct list_head *head)
                         if (!sys->bus)
                                 panic("PCI: unable to scan bus!");
 
-                        busnr = sys->bus->subordinate + 1;
+                        busnr = sys->bus->busn_res.end + 1;
 
                         list_add(&sys->node, head);
                 } else {
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 524df4295c90..3ca9bed7dc50 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -384,7 +384,7 @@ pci_acpi_scan_root(struct acpi_pci_root *root)
                 return NULL;
         }
 
-        pbus->subordinate = pci_scan_child_bus(pbus);
+        pbus->busn_res.end = pci_scan_child_bus(pbus);
         return pbus;
 
 out3:
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index ed22bfc5db14..9b32483cd0c0 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -1506,10 +1506,10 @@ static void __devinit pcibios_scan_phb(struct pci_controller *hose)
                 pci_free_resource_list(&resources);
                 return;
         }
-        bus->secondary = hose->first_busno;
+        bus->busn_res.start = hose->first_busno;
         hose->bus = bus;
 
-        hose->last_busno = bus->subordinate;
+        hose->last_busno = bus->busn_res.end;
 }
 
 static int __init pcibios_init(void)
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 271e8c4a54c7..0a9bf778edb5 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -102,7 +102,7 @@ static void __devinit pcibios_scanbus(struct pci_controller *hose)
         need_domain_info = need_domain_info || hose->index;
         hose->need_domain_info = need_domain_info;
         if (bus) {
-                next_busno = bus->subordinate + 1;
+                next_busno = bus->busn_res.end + 1;
                 /* Don't allow 8-bit bus number overflow inside the hose -
                    reserve some space for bridges. */
                 if (next_busno > 224) {
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 8e78e93c8185..3532b535698a 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1646,7 +1646,7 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
                 pci_free_resource_list(&resources);
                 return;
         }
-        bus->secondary = hose->first_busno;
+        bus->busn_res.start = hose->first_busno;
         hose->bus = bus;
 
         /* Get probe mode and perform scan */
@@ -1655,12 +1655,12 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
                 mode = ppc_md.pci_probe_mode(bus);
         pr_debug("    probe mode: %d\n", mode);
         if (mode == PCI_PROBE_DEVTREE) {
-                bus->subordinate = hose->last_busno;
+                bus->busn_res.end = hose->last_busno;
                 of_scan_bus(node, bus);
         }
 
         if (mode == PCI_PROBE_NORMAL)
-                hose->last_busno = bus->subordinate = pci_scan_child_bus(bus);
+                hose->last_busno = bus->busn_res.end = pci_scan_child_bus(bus);
 
         /* Platform gets a chance to do some global fixups before
          * we proceed to resource allocation
diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c
index 94a54f61d341..4ff190ff24a0 100644
--- a/arch/powerpc/kernel/pci_64.c
+++ b/arch/powerpc/kernel/pci_64.c
@@ -236,7 +236,7 @@ long sys_pciconfig_iobase(long which, unsigned long in_bus,
 
         for (ln = pci_root_buses.next; ln != &pci_root_buses; ln = ln->next) {
                 bus = pci_bus_b(ln);
-                if (in_bus >= bus->number && in_bus <= bus->subordinate)
+                if (in_bus >= bus->number && in_bus <= bus->busn_res.end)
                         break;
                 bus = NULL;
         }
diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
index 89dde171a6fa..a36281aa98f3 100644
--- a/arch/powerpc/kernel/pci_of_scan.c
+++ b/arch/powerpc/kernel/pci_of_scan.c
@@ -240,7 +240,7 @@ void __devinit of_scan_pci_bridge(struct pci_dev *dev)
         }
 
         bus->primary = dev->bus->number;
-        bus->subordinate = busrange[1];
+        bus->busn_res.end = busrange[1];
         bus->bridge_ctl = 0;
 
         /* parse ranges property */
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c
index fbdd74dac3ac..9cda6a1ad0cf 100644
--- a/arch/powerpc/platforms/powernv/pci-ioda.c
+++ b/arch/powerpc/platforms/powernv/pci-ioda.c
@@ -589,7 +589,7 @@ static int __devinit pnv_ioda_configure_pe(struct pnv_phb *phb,
                 dcomp = OPAL_IGNORE_RID_DEVICE_NUMBER;
                 fcomp = OPAL_IGNORE_RID_FUNCTION_NUMBER;
                 parent = pe->pbus->self;
-                count = pe->pbus->subordinate - pe->pbus->secondary + 1;
+                count = pe->pbus->busn_res.end - pe->pbus->busn_res.start + 1;
                 switch(count) {
                 case  1: bcomp = OpalPciBusAll;         break;
                 case  2: bcomp = OpalPciBus7Bits;       break;
@@ -816,11 +816,11 @@ static void __devinit pnv_ioda_setup_bus_PE(struct pci_dev *dev,
         pe->pdev = NULL;
         pe->tce32_seg = -1;
         pe->mve_number = -1;
-        pe->rid = bus->secondary << 8;
+        pe->rid = bus->busn_res.start << 8;
         pe->dma_weight = 0;
 
-        pe_info(pe, "Secondary busses %d..%d associated with PE\n",
-                bus->secondary, bus->subordinate);
+        pe_info(pe, "Secondary busses %pR associated with PE\n",
+                &bus->busn_res);
 
         if (pnv_ioda_configure_pe(phb, pe)) {
                 /* XXX What do we do here ? */
diff --git a/arch/powerpc/platforms/pseries/pci_dlpar.c b/arch/powerpc/platforms/pseries/pci_dlpar.c
index 8b7bafa489c2..3ccebc83dc02 100644
--- a/arch/powerpc/platforms/pseries/pci_dlpar.c
+++ b/arch/powerpc/platforms/pseries/pci_dlpar.c
@@ -121,7 +121,7 @@ void pcibios_add_pci_devices(struct pci_bus * bus)
                 if (!num)
                         return;
                 pcibios_setup_bus_devices(bus);
-                max = bus->secondary;
+                max = bus->busn_res.start;
                 for (pass=0; pass < 2; pass++)
                         list_for_each_entry(dev, &bus->devices, bus_list) {
                         if (dev->hdr_type == PCI_HEADER_TYPE_BRIDGE ||
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index 9d10a3cb8797..43068dcb451c 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -59,7 +59,7 @@ static void __devinit pcibios_scanbus(struct pci_channel *hose)
         need_domain_info = need_domain_info || hose->index;
         hose->need_domain_info = need_domain_info;
         if (bus) {
-                next_busno = bus->subordinate + 1;
+                next_busno = bus->busn_res.end + 1;
                 /* Don't allow 8-bit bus number overflow inside the hose -
                    reserve some space for bridges. */
                 if (next_busno > 224) {
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index fdaf21811670..c85bfd788f74 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -535,7 +535,7 @@ static void __devinit of_scan_pci_bridge(struct pci_pbm_info *pbm,
         }
 
         bus->primary = dev->bus->number;
-        bus->subordinate = busrange[1];
+        bus->busn_res.end = busrange[1];
         bus->bridge_ctl = 0;
 
         /* parse ranges property, or cook one up by hand for Simba */
@@ -693,8 +693,8 @@ struct pci_bus * __devinit pci_scan_one_pbm(struct pci_pbm_info *pbm,
                 pci_free_resource_list(&resources);
                 return NULL;
         }
-        bus->secondary = pbm->pci_first_busno;
-        bus->subordinate = pbm->pci_last_busno;
+        bus->busn_res.start = pbm->pci_first_busno;
+        bus->busn_res.end = pbm->pci_last_busno;
 
         pci_of_scan_bus(pbm, node, bus);
         pci_bus_add_devices(bus);
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index b56d12bf5900..54cc8d77c90c 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -329,7 +329,7 @@ int __init pcibios_init(void)
                          */
                         bus = pci_scan_bus(0, controller->ops, controller);
                         controller->root_bus = bus;
-                        controller->last_busno = bus->subordinate;
+                        controller->last_busno = bus->busn_res.end;
                 }
         }
 
@@ -366,7 +366,7 @@ int __init pcibios_init(void)
                                  */
                                 if ((dev->class >> 8) == PCI_CLASS_BRIDGE_PCI &&
                                         (PCI_SLOT(dev->devfn) == 0)) {
-                                        next_bus = dev->subordinate;
+                                        next_bus = dev->busn_res.end;
                                         controllers[i].mem_resources[0] =
                                                 *next_bus->resource[0];
                                         controllers[i].mem_resources[1] =
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index fc09c2754e08..350fe63c8a42 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -440,7 +440,7 @@ struct pci_bus * __devinit pci_acpi_scan_root(struct acpi_pci_root *root)
                 bus = pci_create_root_bus(NULL, busnum, &pci_root_ops, sd,
                                           &resources);
                 if (bus) {
-                        bus->subordinate = pci_scan_child_bus(bus);
+                        bus->busn_res.end = pci_scan_child_bus(bus);
                         pci_set_host_bridge_release(
                                 to_pci_host_bridge(bus->bridge),
                                 release_pci_root_info, info);
diff --git a/arch/xtensa/kernel/pci.c b/arch/xtensa/kernel/pci.c
index eb30e356f5be..9c57c1e6870c 100644
--- a/arch/xtensa/kernel/pci.c
+++ b/arch/xtensa/kernel/pci.c
@@ -187,7 +187,7 @@ static int __init pcibios_init(void)
                 bus = pci_scan_root_bus(NULL, pci_ctrl->first_busno,
                                         pci_ctrl->ops, pci_ctrl, &resources);
                 pci_ctrl->bus = bus;
-                pci_ctrl->last_busno = bus->subordinate;
+                pci_ctrl->last_busno = bus->busn_res.end;
                 if (next_busno <= pci_ctrl->last_busno)
                         next_busno = pci_ctrl->last_busno+1;
         }