* [PATCH v5 06/29] PCI: Pass PCI domain number combined with root bus number
[not found] <1425634426-437-1-git-send-email-wangyijing@huawei.com>
@ 2015-03-06 9:33 ` Yijing Wang
2015-03-06 9:33 ` [PATCH v5 15/29] powerpc/pci: Rename pcibios_root_bridge_prepare() Yijing Wang
2015-03-06 9:33 ` [PATCH v5 16/29] powerpc/pci: Use pci_scan_host_bridge() for simplicity Yijing Wang
2 siblings, 0 replies; 5+ messages in thread
From: Yijing Wang @ 2015-03-06 9:33 UTC (permalink / raw)
To: Bjorn Helgaas
Cc: linux-mips, linux-ia64, linux-sh, linux-pci, sparclinux,
Chris Metcalf, Paul Mackerras, Yijing Wang, Guan Xuetao,
linux-s390, Russell King, x86, Sebastian Ott, Geert Uytterhoeven,
Gerald Schaefer, xen-devel, Matt Turner, Fenghua Yu,
Arnd Bergmann, Konrad Rzeszutek Wilk, Marc Zyngier, Rusty Russell,
linux-m68k, Ivan Kokshaysky, Bjorn Helgaas, Thomas Gleixner,
Yinghai Lu, linux-arm-kernel, Richard Henderson, Liviu Dudau,
Michal Simek, Tony Luck, linux-kernel, Ralf Baechle, Jiang Liu,
linux-alpha, linuxppc-dev, David S. Miller
Now we could pass PCI domain combined with bus number
in u32 argu. Because in arm/arm64, PCI domain number
is assigned by pci_bus_assign_domain_nr(). So we leave
pci_scan_root_bus() and pci_create_root_bus() in arm/arm64
unchanged. A new function pci_host_assign_domain_nr()
will be introduced for arm/arm64 to assign domain number
in later patch.
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: Richard Henderson <rth@twiddle.net>
CC: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
CC: Matt Turner <mattst88@gmail.com>
CC: Tony Luck <tony.luck@intel.com>
CC: Fenghua Yu <fenghua.yu@intel.com>
CC: Michal Simek <monstr@monstr.eu>
CC: Ralf Baechle <ralf@linux-mips.org>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: Paul Mackerras <paulus@samba.org>
CC: Michael Ellerman <mpe@ellerman.id.au>
CC: Sebastian Ott <sebott@linux.vnet.ibm.com>
CC: Gerald Schaefer <gerald.schaefer@de.ibm.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: Chris Metcalf <cmetcalf@ezchip.com>
CC: Thomas Gleixner <tglx@linutronix.de>
CC: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
CC: linux-alpha@vger.kernel.org
CC: linux-kernel@vger.kernel.org
CC: linux-ia64@vger.kernel.org
CC: linux-mips@linux-mips.org
CC: linuxppc-dev@lists.ozlabs.org
CC: linux-s390@vger.kernel.org
CC: linux-sh@vger.kernel.org
CC: sparclinux@vger.kernel.org
CC: xen-devel@lists.xenproject.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
arch/alpha/kernel/pci.c | 5 +++--
arch/alpha/kernel/sys_nautilus.c | 4 ++--
arch/ia64/pci/pci.c | 4 ++--
arch/ia64/sn/kernel/io_init.c | 5 +++--
arch/microblaze/pci/pci-common.c | 5 +++--
arch/mips/pci/pci.c | 4 ++--
arch/powerpc/kernel/pci-common.c | 5 +++--
arch/s390/pci/pci.c | 5 +++--
arch/sh/drivers/pci/pci.c | 5 +++--
arch/sparc/kernel/pci.c | 5 +++--
arch/tile/kernel/pci.c | 5 +++--
arch/tile/kernel/pci_gx.c | 5 +++--
arch/x86/pci/acpi.c | 7 ++++---
arch/x86/pci/common.c | 3 ++-
drivers/pci/xen-pcifront.c | 5 +++--
15 files changed, 42 insertions(+), 30 deletions(-)
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index 5c845ad..deb0a36 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -336,8 +336,9 @@ common_init_pci(void)
pci_add_resource_offset(&resources, hose->mem_space,
hose->mem_space->start);
- bus = pci_scan_root_bus(NULL, next_busno, alpha_mv.pci_ops,
- hose, &resources);
+ bus = pci_scan_root_bus(NULL,
+ PCI_DOMBUS(hose->index, next_busno),
+ alpha_mv.pci_ops, hose, &resources);
if (!bus)
continue;
hose->bus = bus;
diff --git a/arch/alpha/kernel/sys_nautilus.c b/arch/alpha/kernel/sys_nautilus.c
index 700686d..be0bbeb 100644
--- a/arch/alpha/kernel/sys_nautilus.c
+++ b/arch/alpha/kernel/sys_nautilus.c
@@ -206,10 +206,10 @@ nautilus_init_pci(void)
unsigned long memtop = max_low_pfn << PAGE_SHIFT;
/* Scan our single hose. */
- bus = pci_scan_bus(0, alpha_mv.pci_ops, hose);
+ bus = pci_scan_bus(PCI_DOMBUS(hose->index, 0),
+ alpha_mv.pci_ops, hose);
if (!bus)
return;
-
hose->bus = bus;
pcibios_claim_one_bus(bus);
diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
index 48cc657..675749f 100644
--- a/arch/ia64/pci/pci.c
+++ b/arch/ia64/pci/pci.c
@@ -465,8 +465,8 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
* should handle the case here, but it appears that IA64 hasn't
* such quirk. So we just ignore the case now.
*/
- pbus = pci_create_root_bus(NULL, bus, &pci_root_ops, controller,
- &info->resources);
+ pbus = pci_create_root_bus(NULL, PCI_DOMBUS(domain, bus),
+ &pci_root_ops, controller, &info->resources);
if (!pbus) {
pci_free_resource_list(&info->resources);
__release_pci_root_info(info);
diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 1be65eb..7e0b7f9 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -266,8 +266,9 @@ sn_pci_controller_fixup(int segment, int busnum, struct pci_bus *bus)
pci_add_resource_offset(&resources, &res[1],
prom_bussoft_ptr->bs_legacy_mem);
- bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, controller,
- &resources);
+ bus = pci_scan_root_bus(NULL,
+ PCI_DOMBUS(controller->segment, busnum),
+ &pci_root_ops, controller, &resources);
if (bus == NULL) {
kfree(res);
kfree(controller);
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 6d8d173..34a32ec 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -1350,8 +1350,9 @@ static void pcibios_scan_phb(struct pci_controller *hose)
pcibios_setup_phb_resources(hose, &resources);
- bus = pci_scan_root_bus(hose->parent, hose->first_busno,
- hose->ops, hose, &resources);
+ bus = pci_scan_root_bus(hose->parent,
+ PCI_DOMBUS(hose->global_number, hose->first_busno),
+ hose->ops, hose, &resources);
if (bus == NULL) {
pr_err("Failed to create bus for PCI domain %04x\n",
hose->global_number);
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 9eb54b5..86f8d2b 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -92,8 +92,8 @@ static void pcibios_scanbus(struct pci_controller *hose)
pci_add_resource_offset(&resources,
hose->mem_resource, hose->mem_offset);
pci_add_resource_offset(&resources, hose->io_resource, hose->io_offset);
- bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
- &resources);
+ bus = pci_scan_root_bus(NULL, PCI_DOMBUS(hose->index, next_busno),
+ hose->pci_ops, hose, &resources);
if (!bus)
pci_free_resource_list(&resources);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 2a525c9..a467aca 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -1612,8 +1612,9 @@ void pcibios_scan_phb(struct pci_controller *hose)
pci_add_resource(&resources, &hose->busn);
/* Create an empty bus for the toplevel */
- bus = pci_create_root_bus(hose->parent, hose->first_busno,
- hose->ops, hose, &resources);
+ bus = pci_create_root_bus(hose->parent,
+ PCI_DOMBUS(hose->global_number, hose->first_busno),
+ hose->ops, hose, &resources);
if (bus == NULL) {
pr_err("Failed to create bus for PCI domain %04x\n",
hose->global_number);
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
index a2a7391..20e662f 100644
--- a/arch/s390/pci/pci.c
+++ b/arch/s390/pci/pci.c
@@ -770,8 +770,9 @@ static int zpci_scan_bus(struct zpci_dev *zdev)
if (ret)
return ret;
- zdev->bus = pci_scan_root_bus(NULL, ZPCI_BUS_NR, &pci_root_ops,
- zdev, &resources);
+ zdev->bus = pci_scan_root_bus(NULL,
+ PCI_DOMBUS(zdev->domain, ZPCI_BUS_NR), &pci_root_ops,
+ zdev, &resources);
if (!zdev->bus) {
zpci_cleanup_bus_resources(zdev);
return -EIO;
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index efc1051..116f80f 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -52,8 +52,9 @@ static void pcibios_scanbus(struct pci_channel *hose)
pci_add_resource_offset(&resources, res, offset);
}
- bus = pci_scan_root_bus(NULL, next_busno, hose->pci_ops, hose,
- &resources);
+ bus = pci_scan_root_bus(NULL,
+ PCI_DOMBUS(hose->index, next_busno),
+ hose->pci_ops, hose, &resources);
hose->bus = bus;
need_domain_info = need_domain_info || hose->index;
diff --git a/arch/sparc/kernel/pci.c b/arch/sparc/kernel/pci.c
index 9ce5afe..838fe1e 100644
--- a/arch/sparc/kernel/pci.c
+++ b/arch/sparc/kernel/pci.c
@@ -667,8 +667,9 @@ struct pci_bus *pci_scan_one_pbm(struct pci_pbm_info *pbm,
pbm->busn.end = pbm->pci_last_busno;
pbm->busn.flags = IORESOURCE_BUS;
pci_add_resource(&resources, &pbm->busn);
- bus = pci_create_root_bus(parent, pbm->pci_first_busno, pbm->pci_ops,
- pbm, &resources);
+ bus = pci_create_root_bus(parent,
+ PCI_DOMBUS(pbm->index, pbm->pci_first_busno),
+ pbm->pci_ops, pbm, &resources);
if (!bus) {
printk(KERN_ERR "Failed to create bus for %s\n",
node->full_name);
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index 9475a74..25b0d9b 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -306,8 +306,9 @@ int __init pcibios_init(void)
pci_add_resource(&resources, &ioport_resource);
pci_add_resource(&resources, &iomem_resource);
- bus = pci_scan_root_bus(NULL, 0, controller->ops,
- controller, &resources);
+ bus = pci_scan_root_bus(NULL,
+ PCI_DOMBUS(controller->index, 0),
+ controller->ops, controller, &resources);
controller->root_bus = bus;
controller->last_busno = bus->busn_res.end;
}
diff --git a/arch/tile/kernel/pci_gx.c b/arch/tile/kernel/pci_gx.c
index b1df847..f6f41f3 100644
--- a/arch/tile/kernel/pci_gx.c
+++ b/arch/tile/kernel/pci_gx.c
@@ -881,8 +881,9 @@ int __init pcibios_init(void)
controller->mem_offset);
pci_add_resource(&resources, &controller->io_space);
controller->first_busno = next_busno;
- bus = pci_scan_root_bus(NULL, next_busno, controller->ops,
- controller, &resources);
+ bus = pci_scan_root_bus(NULL,
+ PCI_DOMBUS(controller->index, next_busno),
+ controller->ops, controller, &resources);
controller->root_bus = bus;
next_busno = bus->busn_res.end + 1;
}
diff --git a/arch/x86/pci/acpi.c b/arch/x86/pci/acpi.c
index 6ac2738..ad0e926 100644
--- a/arch/x86/pci/acpi.c
+++ b/arch/x86/pci/acpi.c
@@ -424,9 +424,10 @@ struct pci_bus *pci_acpi_scan_root(struct acpi_pci_root *root)
}
if (!setup_mcfg_map(info, domain, (u8)root->secondary.start,
- (u8)root->secondary.end, root->mcfg_addr))
- bus = pci_create_root_bus(NULL, busnum, &pci_root_ops,
- sd, &resources);
+ (u8)root->secondary.end, root->mcfg_addr))
+ bus = pci_create_root_bus(NULL,
+ PCI_DOMBUS(domain, busnum), &pci_root_ops,
+ sd, &resources);
if (bus) {
pci_scan_child_bus(bus);
diff --git a/arch/x86/pci/common.c b/arch/x86/pci/common.c
index 0cbc723..0160280 100644
--- a/arch/x86/pci/common.c
+++ b/arch/x86/pci/common.c
@@ -486,7 +486,8 @@ void pcibios_scan_root(int busnum)
sd->node = x86_pci_root_bus_node(busnum);
x86_pci_root_bus_resources(busnum, &resources);
printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum);
- bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources);
+ bus = pci_scan_root_bus(NULL, PCI_DOMBUS(0, busnum),
+ &pci_root_ops, sd, &resources);
if (!bus) {
pci_free_resource_list(&resources);
kfree(sd);
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 7057930..d5dfb70 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -478,8 +478,9 @@ static int pcifront_scan_root(struct pcifront_device *pdev,
pci_lock_rescan_remove();
- b = pci_scan_root_bus(&pdev->xdev->dev, bus,
- &pcifront_bus_ops, sd, &resources);
+ b = pci_scan_root_bus(&pdev->xdev->dev,
+ PCI_DOMBUS(sd->domain, bus),
+ &pcifront_bus_ops, sd, &resources);
if (!b) {
dev_err(&pdev->xdev->dev,
"Error creating PCI Frontend Bus!\n");
--
1.7.1
^ permalink raw reply related [flat|nested] 5+ messages in thread* [PATCH v5 16/29] powerpc/pci: Use pci_scan_host_bridge() for simplicity
[not found] <1425634426-437-1-git-send-email-wangyijing@huawei.com>
2015-03-06 9:33 ` [PATCH v5 06/29] PCI: Pass PCI domain number combined with root bus number Yijing Wang
2015-03-06 9:33 ` [PATCH v5 15/29] powerpc/pci: Rename pcibios_root_bridge_prepare() Yijing Wang
@ 2015-03-06 9:33 ` Yijing Wang
2015-03-06 14:19 ` Rob Herring
2 siblings, 1 reply; 5+ messages in thread
From: Yijing Wang @ 2015-03-06 9:33 UTC (permalink / raw)
To: Bjorn Helgaas
Cc: linux-ia64, linux-pci, Yijing Wang, Guan Xuetao, Russell King,
x86, Geert Uytterhoeven, Arnd Bergmann, Marc Zyngier,
Rusty Russell, linux-m68k, Bjorn Helgaas, Thomas Gleixner,
Yinghai Lu, linux-arm-kernel, Liviu Dudau, Tony Luck,
linux-kernel, Jiang Liu, linux-alpha, linuxppc-dev,
David S. Miller
Now we could use pci_scan_host_bridge() to scan
pci buses, provide powerpc specific pci_host_bridge_ops.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Yijing Wang <wangyijing@huawei.com>
CC: Benjamin Herrenschmidt <benh@kernel.crashing.org>
CC: linuxppc-dev@lists.ozlabs.org
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
arch/powerpc/include/asm/machdep.h | 2 +-
arch/powerpc/kernel/pci-common.c | 63 ++++++++++++++++++------------
arch/powerpc/platforms/pseries/pci.c | 8 ++--
arch/powerpc/platforms/pseries/pseries.h | 2 +-
4 files changed, 44 insertions(+), 31 deletions(-)
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 8e7f2a8..b811d12 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -129,7 +129,7 @@ struct machdep_calls {
void (*pcibios_fixup)(void);
int (*pci_probe_mode)(struct pci_bus *);
void (*pci_irq_fixup)(struct pci_dev *dev);
- int (*pcibios_set_root_bus_speed)(struct pci_host_bridge
+ void (*pcibios_set_root_bus_speed)(struct pci_host_bridge
*bridge);
/* To setup PHBs when using automatic OF platform driver for PCI */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 0d8b369..71f0077 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -767,14 +767,37 @@ int pci_proc_domain(struct pci_bus *bus)
return 1;
}
-int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
+static void pci_host_bridge_set_root_bus_speed(
+ struct pci_host_bridge *bridge)
{
if (ppc_md.pcibios_set_root_bus_speed)
- return ppc_md.pcibios_set_root_bus_speed(bridge);
+ ppc_md.pcibios_set_root_bus_speed(bridge);
return 0;
}
+static void pci_host_bridge_of_scan_bus(struct pci_host_bridge *host)
+{
+ int mode = PCI_PROBE_NORMAL;
+ struct pci_bus *bus = host->bus;
+ struct pci_controller *hose = dev_get_drvdata(&host->dev);
+
+ /* Get probe mode and perform scan */
+ if (hose->dn && ppc_md.pci_probe_mode)
+ mode = ppc_md.pci_probe_mode(bus);
+
+ pr_debug(" probe mode: %d\n", mode);
+ if (mode == PCI_PROBE_DEVTREE)
+ of_scan_bus(hose->dn, bus);
+
+ if (mode == PCI_PROBE_NORMAL) {
+ pci_bus_update_busn_res_end(bus, 255);
+ hose->last_busno = pci_scan_child_bus(bus);
+ pci_bus_update_busn_res_end(bus, hose->last_busno);
+ }
+}
+
+
/* This header fixup will do the resource fixup for all devices as they are
* probed, but not for bridge ranges
*/
@@ -1587,6 +1610,11 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
return of_node_get(hose->dn);
}
+static struct pci_host_bridge_ops phb_ops = {
+ .set_root_bus_speed = pci_host_bridge_set_root_bus_speed,
+ .scan_bus = pci_host_bridge_of_scan_bus,
+};
+
/**
* pci_scan_phb - Given a pci_controller, setup and scan the PCI bus
* @hose: Pointer to the PCI host controller instance structure
@@ -1594,9 +1622,8 @@ struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
void pcibios_scan_phb(struct pci_controller *hose)
{
LIST_HEAD(resources);
- struct pci_bus *bus;
+ struct pci_host_bridge *host;
struct device_node *node = hose->dn;
- int mode;
pr_debug("PCI: Scanning PHB %s\n", of_node_full_name(node));
@@ -1612,30 +1639,16 @@ void pcibios_scan_phb(struct pci_controller *hose)
pci_add_resource(&resources, &hose->busn);
/* Create an empty bus for the toplevel */
- bus = pci_create_root_bus(hose->parent,
+ host = pci_scan_host_bridge(hose->parent,
PCI_DOMBUS(hose->global_number, hose->first_busno),
- hose->ops, hose, &resources);
- if (bus == NULL) {
- pr_err("Failed to create bus for PCI domain %04x\n",
+ hose->ops, hose, &resources, &phb_ops);
+ if (host == NULL) {
+ pr_err("Failed to create host bridge for PCI domain %04x\n",
hose->global_number);
pci_free_resource_list(&resources);
return;
}
- hose->bus = bus;
-
- /* Get probe mode and perform scan */
- mode = PCI_PROBE_NORMAL;
- if (node && ppc_md.pci_probe_mode)
- mode = ppc_md.pci_probe_mode(bus);
- pr_debug(" probe mode: %d\n", mode);
- if (mode == PCI_PROBE_DEVTREE)
- of_scan_bus(node, bus);
-
- if (mode == PCI_PROBE_NORMAL) {
- pci_bus_update_busn_res_end(bus, 255);
- hose->last_busno = pci_scan_child_bus(bus);
- pci_bus_update_busn_res_end(bus, hose->last_busno);
- }
+ hose->bus = host->bus;
/* Platform gets a chance to do some global fixups before
* we proceed to resource allocation
@@ -1644,9 +1657,9 @@ void pcibios_scan_phb(struct pci_controller *hose)
ppc_md.pcibios_fixup_phb(hose);
/* Configure PCI Express settings */
- if (bus && !pci_has_flag(PCI_PROBE_ONLY)) {
+ if (host->bus && !pci_has_flag(PCI_PROBE_ONLY)) {
struct pci_bus *child;
- list_for_each_entry(child, &bus->children, node)
+ list_for_each_entry(child, &host->bus->children, node)
pcie_bus_configure_settings(child);
}
}
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index af685d6..89ff79c 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -110,7 +110,7 @@ static void fixup_winbond_82c105(struct pci_dev* dev)
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
fixup_winbond_82c105);
-int pseries_set_root_bus_speed(struct pci_host_bridge *bridge)
+void pseries_set_root_bus_speed(struct pci_host_bridge *bridge)
{
struct device_node *dn, *pdn;
struct pci_bus *bus;
@@ -121,7 +121,7 @@ int pseries_set_root_bus_speed(struct pci_host_bridge *bridge)
dn = pcibios_get_phb_of_node(bus);
if (!dn)
- return 0;
+ return;
for (pdn = dn; pdn != NULL; pdn = of_get_next_parent(pdn)) {
rc = of_property_read_u32_array(pdn,
@@ -135,7 +135,7 @@ int pseries_set_root_bus_speed(struct pci_host_bridge *bridge)
if (rc) {
pr_debug("no ibm,pcie-link-speed-stats property\n");
- return 0;
+ return;
}
switch (pcie_link_speed_stats[0]) {
@@ -168,5 +168,5 @@ int pseries_set_root_bus_speed(struct pci_host_bridge *bridge)
break;
}
- return 0;
+ return;
}
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 5d0be3a..9aa9c13 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -63,7 +63,7 @@ extern int dlpar_detach_node(struct device_node *);
/* PCI root bridge prepare function override for pseries */
struct pci_host_bridge;
-int pseries_set_root_bus_speed(struct pci_host_bridge *bridge);
+void pseries_set_root_bus_speed(struct pci_host_bridge *bridge);
unsigned long pseries_memory_block_size(void);
--
1.7.1
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