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-rw-r--r--drivers/pci/hotplug/acpi_pcihp.c54
-rw-r--r--drivers/pci/hotplug/pci_hotplug.h1
-rw-r--r--drivers/pci/hotplug/pciehp_hpc.c15
3 files changed, 27 insertions, 43 deletions
diff --git a/drivers/pci/hotplug/acpi_pcihp.c b/drivers/pci/hotplug/acpi_pcihp.c
index 0f713531754..39af9c325f3 100644
--- a/drivers/pci/hotplug/acpi_pcihp.c
+++ b/drivers/pci/hotplug/acpi_pcihp.c
@@ -37,28 +37,6 @@
#define METHOD_NAME__HPP "_HPP"
#define METHOD_NAME_OSHP "OSHP"
-/* acpi_path_name
- *
- * @handle - the acpi_handle of the object who's name you want.
- *
- * Caller must free buffer.
- */
-u8 * acpi_path_name(acpi_handle handle)
-{
- acpi_status status;
- struct acpi_buffer ret_buf = {ACPI_ALLOCATE_BUFFER, NULL};
- union acpi_object *obj;
-
- status = acpi_get_name(handle, ACPI_FULL_PATHNAME, &ret_buf);
- if (ACPI_FAILURE(status)) {
- return NULL;
- }
- obj = ret_buf.pointer;
- return obj->string.pointer;
-}
-EXPORT_SYMBOL_GPL(acpi_path_name);
-
-
static acpi_status
acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
@@ -66,10 +44,12 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
acpi_status status;
u8 nui[4];
struct acpi_buffer ret_buf = { 0, NULL};
+ struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
union acpi_object *ext_obj, *package;
- u8 *path_name = acpi_path_name(handle);
int i, len = 0;
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
+
/* get _hpp */
status = acpi_evaluate_object(handle, METHOD_NAME__HPP, NULL, &ret_buf);
switch (status) {
@@ -77,8 +57,8 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
ret_buf.pointer = kmalloc (ret_buf.length, GFP_KERNEL);
if (!ret_buf.pointer) {
printk(KERN_ERR "%s:%s alloc for _HPP fail\n",
- __FUNCTION__, path_name);
- acpi_os_free(path_name);
+ __FUNCTION__, (char *)string.pointer);
+ acpi_os_free(string.pointer);
return AE_NO_MEMORY;
}
status = acpi_evaluate_object(handle, METHOD_NAME__HPP,
@@ -88,8 +68,8 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
default:
if (ACPI_FAILURE(status)) {
pr_debug("%s:%s _HPP fail=0x%x\n", __FUNCTION__,
- path_name, status);
- acpi_os_free(path_name);
+ (char *)string.pointer, status);
+ acpi_os_free(string.pointer);
return status;
}
}
@@ -97,7 +77,7 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
ext_obj = (union acpi_object *) ret_buf.pointer;
if (ext_obj->type != ACPI_TYPE_PACKAGE) {
printk(KERN_ERR "%s:%s _HPP obj not a package\n", __FUNCTION__,
- path_name);
+ (char *)string.pointer);
status = AE_ERROR;
goto free_and_return;
}
@@ -112,7 +92,7 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
break;
default:
printk(KERN_ERR "%s:%s _HPP obj type incorrect\n",
- __FUNCTION__, path_name);
+ __FUNCTION__, (char *)string.pointer);
status = AE_ERROR;
goto free_and_return;
}
@@ -129,8 +109,8 @@ acpi_run_hpp(acpi_handle handle, struct hotplug_params *hpp)
pr_debug(" _HPP: enable PERR =0x%x\n", hpp->enable_perr);
free_and_return:
- acpi_os_free(path_name);
- kfree(ret_buf.pointer);
+ acpi_os_free(string.pointer);
+ acpi_os_free(ret_buf.pointer);
return status;
}
@@ -143,16 +123,20 @@ free_and_return:
acpi_status acpi_run_oshp(acpi_handle handle)
{
acpi_status status;
- u8 *path_name = acpi_path_name(handle);
+ struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
+
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
/* run OSHP */
status = acpi_evaluate_object(handle, METHOD_NAME_OSHP, NULL, NULL);
if (ACPI_FAILURE(status))
printk(KERN_ERR "%s:%s OSHP fails=0x%x\n", __FUNCTION__,
- path_name, status);
+ (char *)string.pointer, status);
else
- pr_debug("%s:%s OSHP passes\n", __FUNCTION__, path_name);
- acpi_os_free(path_name);
+ pr_debug("%s:%s OSHP passes\n", __FUNCTION__,
+ (char *)string.pointer);
+
+ acpi_os_free(string.pointer);
return status;
}
EXPORT_SYMBOL_GPL(acpi_run_oshp);
diff --git a/drivers/pci/hotplug/pci_hotplug.h b/drivers/pci/hotplug/pci_hotplug.h
index e476ed03338..eb0d01d4723 100644
--- a/drivers/pci/hotplug/pci_hotplug.h
+++ b/drivers/pci/hotplug/pci_hotplug.h
@@ -190,7 +190,6 @@ struct hotplug_params {
extern acpi_status acpi_run_oshp(acpi_handle handle);
extern acpi_status acpi_get_hp_params_from_firmware(struct pci_dev *dev,
struct hotplug_params *hpp);
-extern u8 * acpi_path_name(acpi_handle handle);
int acpi_root_bridge(acpi_handle handle);
#endif
#endif
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 22dcd12e4c1..6c14d9e46b2 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -1246,7 +1246,7 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev)
acpi_handle chandle, handle = DEVICE_ACPI_HANDLE(&(dev->dev));
struct pci_dev *pdev = dev;
struct pci_bus *parent;
- u8 *path_name = NULL;
+ struct acpi_buffer string = { ACPI_ALLOCATE_BUFFER, NULL };
/*
* Per PCI firmware specification, we should run the ACPI _OSC
@@ -1278,16 +1278,17 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev)
}
while (handle) {
- path_name = acpi_path_name(handle);
- dbg("Trying to get hotplug control for %s \n", path_name);
+ acpi_get_name(handle, ACPI_FULL_PATHNAME, &string);
+ dbg("Trying to get hotplug control for %s \n",
+ (char *)string.pointer);
status = pci_osc_control_set(handle,
OSC_PCI_EXPRESS_NATIVE_HP_CONTROL);
if (status == AE_NOT_FOUND)
status = acpi_run_oshp(handle);
if (ACPI_SUCCESS(status)) {
dbg("Gained control for hotplug HW for pci %s (%s)\n",
- pci_name(dev), path_name);
- acpi_os_free(path_name);
+ pci_name(dev), (char *)string.pointer);
+ acpi_os_free(string.pointer);
return 0;
}
if (acpi_root_bridge(handle))
@@ -1300,8 +1301,8 @@ int pciehp_acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev)
err("Cannot get control of hotplug hardware for pci %s\n",
pci_name(dev));
- if (path_name)
- acpi_os_free(path_name);
+
+ acpi_os_free(string.pointer);
return -1;
}
#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 02:18:24 +0000