We may find use for struct acpi_device and acpi_bus_get_device() in generic
code without wanting to add #if IS_ENABLED(CONFIG_ACPI) churn there.
Code can use ACPI_HANDLE() test to let compiler optimize out code blocks
that are not used in !CONFIG_ACPI builds but structure definitions and
function stubs must be available.
This patch moves CONFIG_ACPI test so that struct acpi_device definition
is available for all builds that include acpi_bus.h and provides a stub for
acpi_bus_get_device().
Signed-off-by: Jarkko Nikula <jarkko.nikula@xxxxxxxxxxxxxxx>
---
include/acpi/acpi_bus.h | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 15100f6..232b37d3 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -66,8 +66,6 @@ bool acpi_ata_match(acpi_handle handle);
bool acpi_bay_match(acpi_handle handle);
bool acpi_dock_match(acpi_handle handle);
-#ifdef CONFIG_ACPI
-
#include <linux/proc_fs.h>
#define ACPI_BUS_FILE_ROOT "acpi"
@@ -315,6 +313,8 @@ struct acpi_device {
void (*remove)(struct acpi_device *);
};
+#if IS_ENABLED(CONFIG_ACPI)
+
static inline void *acpi_driver_data(struct acpi_device *d)
{
return d->driver_data;
@@ -532,6 +532,11 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
static inline int register_acpi_bus_type(void *bus) { return 0; }
static inline int unregister_acpi_bus_type(void *bus) { return 0; }
+static inline int acpi_bus_get_device(acpi_handle handle,
+ struct acpi_device **device)
+{
+ return -ENODEV;
+}
#endif /* CONFIG_ACPI */
--
1.8.4.rc3
--
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