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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-04-07 16:30:01 +0200 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-04-08 19:55:40 +0200 |
commit | e6c1067dc1becf6c00408f59e0efa28b8d206371 (patch) | |
tree | 917518ea4f552e9319c860ddd77cd4c7111a94b4 | |
parent | e49d033bddf5b565044e2abe4241353959bc9120 (diff) | |
download | linux-stable-e6c1067dc1becf6c00408f59e0efa28b8d206371.tar.gz linux-stable-e6c1067dc1becf6c00408f59e0efa28b8d206371.tar.bz2 linux-stable-e6c1067dc1becf6c00408f59e0efa28b8d206371.zip |
ACPI: scan: Fold acpi_bus_type_and_status() into its caller
There is only one caller of acpi_bus_type_and_status() which is
acpi_bus_check_add(), so fold the former into the latter and use
the observation that the initial status of the device is
ACPI_STA_DEFAULT in all cases except for ACPI_BUS_TYPE_PROCESSOR
to simplify the code.
No intentional functional impact.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
-rw-r--r-- | drivers/acpi/scan.c | 80 |
1 files changed, 32 insertions, 48 deletions
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 6efe7edd7b1e..7f39bea6328a 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -1763,50 +1763,6 @@ static bool acpi_device_should_be_hidden(acpi_handle handle) return true; } -static int acpi_bus_type_and_status(acpi_handle handle, int *type, - unsigned long long *sta) -{ - acpi_status status; - acpi_object_type acpi_type; - - status = acpi_get_type(handle, &acpi_type); - if (ACPI_FAILURE(status)) - return -ENODEV; - - switch (acpi_type) { - case ACPI_TYPE_ANY: /* for ACPI_ROOT_OBJECT */ - case ACPI_TYPE_DEVICE: - if (acpi_device_should_be_hidden(handle)) - return -ENODEV; - - *type = ACPI_BUS_TYPE_DEVICE; - /* - * acpi_add_single_object updates this once we've an acpi_device - * so that acpi_bus_get_status' quirk handling can be used. - */ - *sta = ACPI_STA_DEFAULT; - break; - case ACPI_TYPE_PROCESSOR: - *type = ACPI_BUS_TYPE_PROCESSOR; - status = acpi_bus_get_status_handle(handle, sta); - if (ACPI_FAILURE(status)) - return -ENODEV; - break; - case ACPI_TYPE_THERMAL: - *type = ACPI_BUS_TYPE_THERMAL; - *sta = ACPI_STA_DEFAULT; - break; - case ACPI_TYPE_POWER: - *type = ACPI_BUS_TYPE_POWER; - *sta = ACPI_STA_DEFAULT; - break; - default: - return -ENODEV; - } - - return 0; -} - bool acpi_device_is_present(const struct acpi_device *adev) { return adev->status.present || adev->status.functional; @@ -1953,18 +1909,46 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, bool check_dep, struct acpi_device **adev_p) { struct acpi_device *device = NULL; - unsigned long long sta; + unsigned long long sta = ACPI_STA_DEFAULT; + acpi_object_type acpi_type; int type; - int result; acpi_bus_get_device(handle, &device); if (device) goto out; - result = acpi_bus_type_and_status(handle, &type, &sta); - if (result) + if (ACPI_FAILURE(acpi_get_type(handle, &acpi_type))) return AE_OK; + switch (acpi_type) { + case ACPI_TYPE_DEVICE: + if (acpi_device_should_be_hidden(handle)) + return AE_OK; + + fallthrough; + case ACPI_TYPE_ANY: /* for ACPI_ROOT_OBJECT */ + type = ACPI_BUS_TYPE_DEVICE; + break; + + case ACPI_TYPE_PROCESSOR: + if (ACPI_FAILURE(acpi_bus_get_status_handle(handle, &sta))) + return AE_OK; + + type = ACPI_BUS_TYPE_PROCESSOR; + break; + + case ACPI_TYPE_THERMAL: + type = ACPI_BUS_TYPE_THERMAL; + break; + + case ACPI_TYPE_POWER: + type = ACPI_BUS_TYPE_POWER; + break; + + default: + return AE_OK; + } + if (type == ACPI_BUS_TYPE_POWER) { acpi_add_power_resource(handle); return AE_OK; |