[PATCH] PCI: ACPI: Replace acpi_bus_get_device()

From: Rafael J. Wysocki
Date: Wed Jan 26 2022 - 14:42:52 EST


From: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>

Replace acpi_bus_get_device() that is going to be dropped with
acpi_fetch_acpi_dev().

No intentional functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
---
drivers/pci/hotplug/acpiphp_glue.c | 7 ++++---
drivers/pci/hotplug/acpiphp_ibm.c | 5 +++--
drivers/pci/pci-acpi.c | 6 +++---
3 files changed, 10 insertions(+), 8 deletions(-)

Index: linux-pm/drivers/pci/hotplug/acpiphp_glue.c
===================================================================
--- linux-pm.orig/drivers/pci/hotplug/acpiphp_glue.c
+++ linux-pm/drivers/pci/hotplug/acpiphp_glue.c
@@ -226,9 +226,9 @@ static void acpiphp_post_dock_fixup(stru
static acpi_status acpiphp_add_context(acpi_handle handle, u32 lvl, void *data,
void **rv)
{
+ struct acpi_device *adev = acpi_fetch_acpi_dev(handle);
struct acpiphp_bridge *bridge = data;
struct acpiphp_context *context;
- struct acpi_device *adev;
struct acpiphp_slot *slot;
struct acpiphp_func *newfunc;
acpi_status status = AE_OK;
@@ -238,6 +238,9 @@ static acpi_status acpiphp_add_context(a
struct pci_dev *pdev = bridge->pci_dev;
u32 val;

+ if (!adev)
+ return AE_OK;
+
status = acpi_evaluate_integer(handle, "_ADR", NULL, &adr);
if (ACPI_FAILURE(status)) {
if (status != AE_NOT_FOUND)
@@ -245,8 +248,6 @@ static acpi_status acpiphp_add_context(a
"can't evaluate _ADR (%#x)\n", status);
return AE_OK;
}
- if (acpi_bus_get_device(handle, &adev))
- return AE_OK;

device = (adr >> 16) & 0xffff;
function = adr & 0xffff;
Index: linux-pm/drivers/pci/hotplug/acpiphp_ibm.c
===================================================================
--- linux-pm.orig/drivers/pci/hotplug/acpiphp_ibm.c
+++ linux-pm/drivers/pci/hotplug/acpiphp_ibm.c
@@ -433,8 +433,9 @@ static int __init ibm_acpiphp_init(void)
goto init_return;
}
pr_debug("%s: found IBM aPCI device\n", __func__);
- if (acpi_bus_get_device(ibm_acpi_handle, &device)) {
- pr_err("%s: acpi_bus_get_device failed\n", __func__);
+ device = acpi_fetch_acpi_dev(ibm_acpi_handle);
+ if (!device)) {
+ pr_err("%s: acpi_fetch_acpi_dev failed\n", __func__);
retval = -ENODEV;
goto init_return;
}
Index: linux-pm/drivers/pci/pci-acpi.c
===================================================================
--- linux-pm.orig/drivers/pci/pci-acpi.c
+++ linux-pm/drivers/pci/pci-acpi.c
@@ -89,9 +89,9 @@ int acpi_get_rc_resources(struct device
return -ENODEV;
}

- ret = acpi_bus_get_device(handle, &adev);
- if (ret)
- return ret;
+ adev = acpi_fetch_acpi_dev(handle);
+ if (!adev)
+ return -ENODEV;

ret = acpi_get_rc_addr(adev, res);
if (ret) {