Make capabilitis buffer in acpi_pci_run_osc() instead of caller of
this function. This makes the code a little cleaner. This has no
functional changes.
Signed-off-by: Kenji Kaneshige <kaneshige.kenji@xxxxxxxxxxxxxx>
---
drivers/acpi/pci_root.c | 34 +++++++++++++++++++---------------
1 file changed, 19 insertions(+), 15 deletions(-)
Index: linux-2.6.35-rc6/drivers/acpi/pci_root.c
===================================================================
--- linux-2.6.35-rc6.orig/drivers/acpi/pci_root.c
+++ linux-2.6.35-rc6/drivers/acpi/pci_root.c
@@ -206,9 +206,10 @@ static void acpi_pci_bridge_scan(struct
static u8 pci_osc_uuid_str[] = "33DB4D5B-1FF7-401C-9657-7441C03DD766";
-static acpi_status acpi_pci_run_osc(acpi_handle handle,
- const u32 *capbuf, u32 *retval)
+static acpi_status acpi_pci_run_osc(acpi_handle handle, u32 support,
+ u32 control, bool query, u32 *retval)
{
+ u32 capbuf[3];
struct acpi_osc_context context = {
.uuid_str = pci_osc_uuid_str,
.rev = 1,
@@ -217,6 +218,10 @@ static acpi_status acpi_pci_run_osc(acpi
};
acpi_status status;
+ capbuf[OSC_QUERY_TYPE] = (query == true) ? OSC_QUERY_ENABLE : 0;
+ capbuf[OSC_SUPPORT_TYPE] = support;
+ capbuf[OSC_CONTROL_TYPE] = control;
+
status = acpi_run_osc(handle, &context);
if (ACPI_SUCCESS(status)) {
*retval = *((u32 *)(context.ret.pointer + 8));
@@ -228,17 +233,16 @@ static acpi_status acpi_pci_run_osc(acpi
static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, u32 flags)
{
acpi_status status;
- u32 support_set, result, capbuf[3];
+ u32 result;
/* do _OSC query for all possible controls */
- support_set = root->osc_support_set | (flags & OSC_PCI_SUPPORT_MASKS);
- capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE;
- capbuf[OSC_SUPPORT_TYPE] = support_set;
- capbuf[OSC_CONTROL_TYPE] = OSC_PCI_CONTROL_MASKS;
-
- status = acpi_pci_run_osc(root->device->handle, capbuf, &result);
+ flags &= OSC_PCI_SUPPORT_MASKS;
+ status = acpi_pci_run_osc(root->device->handle,
+ root->osc_support_set | flags,
+ OSC_PCI_CONTROL_MASKS,
+ true, &result);
if (ACPI_SUCCESS(status)) {
- root->osc_support_set = support_set;
+ root->osc_support_set |= flags;
root->osc_control_qry = result;
root->osc_queried = 1;
}
@@ -373,7 +377,7 @@ EXPORT_SYMBOL_GPL(acpi_get_pci_dev);
acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 flags)
{
acpi_status status;
- u32 control_req, result, capbuf[3];
+ u32 control_req, result;
acpi_handle tmp;
struct acpi_pci_root *root;
@@ -407,10 +411,10 @@ acpi_status acpi_pci_osc_control_set(acp
goto out;
}
- capbuf[OSC_QUERY_TYPE] = 0;
- capbuf[OSC_SUPPORT_TYPE] = root->osc_support_set;
- capbuf[OSC_CONTROL_TYPE] = root->osc_control_set | control_req;
- status = acpi_pci_run_osc(handle, capbuf, &result);
+ status = acpi_pci_run_osc(handle,
+ root->osc_support_set,
+ root->osc_control_set | control_req,
+ false, &result);
if (ACPI_SUCCESS(status))
root->osc_control_set = result;
out:
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