This patch makes acpi_get_hp_params_from_firmware() take a
pci_dev rather than a pci_bus and makes it return a standard
int errno rather than acpi_status.
Signed-off-by: Bjorn Helgaas <bjorn.helgaas@xxxxxx>
---
drivers/pci/hotplug/acpi_pcihp.c | 14 +++++++-------
drivers/pci/hotplug/acpiphp_glue.c | 7 +++----
drivers/pci/hotplug/pciehp.h | 4 +---
drivers/pci/hotplug/shpchp.h | 4 +---
include/linux/pci_hotplug.h | 2 +-
5 files changed, 13 insertions(+), 18 deletions(-)
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index eb15958..be3b9be 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -324,18 +324,18 @@ static acpi_status acpi_run_oshp(acpi_handle handle)
/* acpi_get_hp_params_from_firmware
*
- * @bus - the pci_bus of the bus on which the device is newly added
+ * @dev - the pci_dev for which we want parameters
* @hpp - allocated by the caller
*/
-acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
+int acpi_get_hp_params_from_firmware(struct pci_dev *dev,
struct hotplug_params *hpp)
{
- acpi_status status = AE_NOT_FOUND;
+ acpi_status status;
acpi_handle handle, phandle;
struct pci_bus *pbus;
handle = NULL;
- for (pbus = bus; pbus; pbus = pbus->parent) {
+ for (pbus = dev->bus; pbus; pbus = pbus->parent) {
handle = acpi_pci_get_bridge_handle(pbus);
if (handle)
break;
@@ -350,10 +350,10 @@ acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
while (handle) {
status = acpi_run_hpx(handle, hpp);
if (ACPI_SUCCESS(status))
- break;
+ return 0;
status = acpi_run_hpp(handle, hpp);
if (ACPI_SUCCESS(status))
- break;
+ return 0;
if (acpi_is_root_bridge(handle))
break;
status = acpi_get_parent(handle, &phandle);
@@ -361,7 +361,7 @@ acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
break;
handle = phandle;
}
- return status;
+ return -ENODEV;
}
EXPORT_SYMBOL_GPL(acpi_get_hp_params_from_firmware);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 1eec666..3dc45e9 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -278,11 +278,10 @@ static int detect_ejectable_slots(struct pci_bus *pbus)
/* decode ACPI 2.0 _HPP hot plug parameters */
static void decode_hpp(struct pci_dev *dev, struct hotplug_params *hpp)
{
- acpi_status status;
+ int ret;
- status = acpi_get_hp_params_from_firmware(dev->bus, hpp);
- if (ACPI_FAILURE(status) ||
- !hpp->t0 || (hpp->t0->revision > 1)) {
+ ret = acpi_get_hp_params_from_firmware(dev, hpp);
+ if (ret || !hpp->t0 || (hpp->t0->revision > 1)) {
/* use default numbers */
printk(KERN_WARNING
"%s: Could not get hotplug parameters. Use defaults\n",
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index e6cf096..86cdfd7 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -241,9 +241,7 @@ static inline int pciehp_get_hp_hw_control_from_firmware(struct pci_dev *dev)
static inline int pciehp_get_hp_params_from_firmware(struct pci_dev *dev,
struct hotplug_params *hpp)
{
- if (ACPI_FAILURE(acpi_get_hp_params_from_firmware(dev->bus, hpp)))
- return -ENODEV;
- return 0;
+ return acpi_get_hp_params_from_firmware(dev, hpp);
}
#else
#define pciehp_firmware_init() do {} while (0)
diff --git a/drivers/pci/hotplug/shpchp.h b/drivers/pci/hotplug/shpchp.h
index 974e924..ad6a255 100644
--- a/drivers/pci/hotplug/shpchp.h
+++ b/drivers/pci/hotplug/shpchp.h
@@ -191,9 +191,7 @@ static inline const char *slot_name(struct slot *slot)
static inline int get_hp_params_from_firmware(struct pci_dev *dev,
struct hotplug_params *hpp)
{
- if (ACPI_FAILURE(acpi_get_hp_params_from_firmware(dev->bus, hpp)))
- return -ENODEV;
- return 0;
+ return acpi_get_hp_params_from_firmware(dev, hpp);
}
static inline int get_hp_hw_control_from_firmware(struct pci_dev *dev)
diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h
index 4391741..46e3e71 100644
--- a/include/linux/pci_hotplug.h
+++ b/include/linux/pci_hotplug.h
@@ -226,7 +226,7 @@ struct hotplug_params {
#ifdef CONFIG_ACPI
#include <acpi/acpi.h>
#include <acpi/acpi_bus.h>
-extern acpi_status acpi_get_hp_params_from_firmware(struct pci_bus *bus,
+int acpi_get_hp_params_from_firmware(struct pci_dev *dev,
struct hotplug_params *hpp);
int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags);
int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle);
--
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