[PATCH] soundwire: slave: Fix unused function warning on !ACPI

[Michal Suchanek]

Fixes the following warning on !ACPI systems:

drivers/soundwire/slave.c:16:12: warning: âsdw_slave_addâ defined but
not used [-Wunused-function]
 static int sdw_slave_add(struct sdw_bus *bus,
            ^~~~~~~~~~~~~

Signed-off-by: Michal Suchanek <msuchanek@xxxxxxx>
---
 drivers/soundwire/slave.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index f39a5815e25d..34c7e65831d1 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -6,6 +6,7 @@
 #include <linux/soundwire/sdw_type.h>
 #include "bus.h"
 
+#if IS_ENABLED(CONFIG_ACPI)
 static void sdw_slave_release(struct device *dev)
 {
 	struct sdw_slave *slave = dev_to_sdw_dev(dev);
@@ -60,7 +61,6 @@ static int sdw_slave_add(struct sdw_bus *bus,
 	return ret;
 }
 
-#if IS_ENABLED(CONFIG_ACPI)
 /*
  * sdw_acpi_find_slaves() - Find Slave devices in Master ACPI node
  * @bus: SDW bus instance
-- 
2.22.0