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ACPI: scan: Call acpi_get_object_info() from acpi_add_single_object()

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Call acpi_get_object_info() from acpi_add_single_object() instead of
calling it from acpi_set_pnp_ids() and pass the result down to the
latter so as to allow acpi_add_single_object() to use that data for
other purposes.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
[ rjw: Changelog rewrite ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Hans de Goede 2020-11-21 21:30:35 +01:00 committed by Rafael J. Wysocki
parent 637b9f1a11
commit 6091b26310
3 changed files with 15 additions and 12 deletions
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3
drivers/acpi/internal.h
View File

@ -105,7 +105,8 @@ struct acpi_device_bus_id {
int acpi_device_add(struct acpi_device *device,
void (*release)(struct device *));
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
int type, unsigned long long sta);
int type, unsigned long long sta,
struct acpi_device_info *info);
int acpi_device_setup_files(struct acpi_device *dev);
void acpi_device_remove_files(struct acpi_device *dev);
void acpi_device_add_finalize(struct acpi_device *device);

2
drivers/acpi/power.c
View File

@ -939,7 +939,7 @@ int acpi_add_power_resource(acpi_handle handle)
device = &resource->device;
acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER,
ACPI_STA_DEFAULT);
ACPI_STA_DEFAULT, NULL);
mutex_init(&resource->resource_lock);
INIT_LIST_HEAD(&resource->list_node);
INIT_LIST_HEAD(&resource->dependents);

22
drivers/acpi/scan.c
View File

@ -1258,10 +1258,8 @@ static bool acpi_object_is_system_bus(acpi_handle handle)
}
static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
int device_type)
int device_type, struct acpi_device_info *info)
{
acpi_status status;
struct acpi_device_info *info;
struct acpi_pnp_device_id_list *cid_list;
int i;
@ -1272,8 +1270,7 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
break;
}
status = acpi_get_object_info(handle, &info);
if (ACPI_FAILURE(status)) {
if (!info) {
pr_err(PREFIX "%s: Error reading device info\n",
__func__);
return;
@ -1298,8 +1295,6 @@ static void acpi_set_pnp_ids(acpi_handle handle, struct acpi_device_pnp *pnp,
if (info->valid & ACPI_VALID_CLS)
acpi_add_id(pnp, info->class_code.string);
kfree(info);
/*
* Some devices don't reliably have _HIDs & _CIDs, so add
* synthetic HIDs to make sure drivers can find them.
@ -1605,7 +1600,8 @@ static bool acpi_device_enumeration_by_parent(struct acpi_device *device)
}
void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
int type, unsigned long long sta)
int type, unsigned long long sta,
struct acpi_device_info *info)
{
INIT_LIST_HEAD(&device->pnp.ids);
device->device_type = type;
@ -1614,7 +1610,7 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle,
device->fwnode.ops = &acpi_device_fwnode_ops;
acpi_set_device_status(device, sta);
acpi_device_get_busid(device);
acpi_set_pnp_ids(handle, &device->pnp, type);
acpi_set_pnp_ids(handle, &device->pnp, type, info);
acpi_init_properties(device);
acpi_bus_get_flags(device);
device->flags.match_driver = false;
@ -1642,14 +1638,20 @@ static int acpi_add_single_object(struct acpi_device **child,
int result;
struct acpi_device *device;
struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
struct acpi_device_info *info = NULL;
if (handle != ACPI_ROOT_OBJECT && type == ACPI_BUS_TYPE_DEVICE)
acpi_get_object_info(handle, &info);
device = kzalloc(sizeof(struct acpi_device), GFP_KERNEL);
if (!device) {
printk(KERN_ERR PREFIX "Memory allocation error\n");
kfree(info);
return -ENOMEM;
}
acpi_init_device_object(device, handle, type, sta);
acpi_init_device_object(device, handle, type, sta, info);
kfree(info);
/*
* For ACPI_BUS_TYPE_DEVICE getting the status is delayed till here so
* that we can call acpi_bus_get_status() and use its quirk handling.