If CONFIG_ACPI is not set, gcc warning this:
drivers/soundwire/slave.c:16:12: warning: 'sdw_slave_add' defined but not used [-Wunused-function]
Now all code in slave.c is only used on ACPI enabled, so compiles it while CONFIG_ACPI is set.
Reported-by: Hulk Robot hulkci@huawei.com Suggested-by: Ladislav Michl ladis@linux-mips.org Signed-off-by: YueHaibing yuehaibing@huawei.com --- v2: use obj-$(CONFIG_ACPI) += slave.o --- drivers/soundwire/Makefile | 3 ++- drivers/soundwire/slave.c | 3 --- 2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/drivers/soundwire/Makefile b/drivers/soundwire/Makefile index 45b7e50..a28bf3e 100644 --- a/drivers/soundwire/Makefile +++ b/drivers/soundwire/Makefile @@ -4,8 +4,9 @@ #
#Bus Objs -soundwire-bus-objs := bus_type.o bus.o slave.o mipi_disco.o stream.o +soundwire-bus-objs := bus_type.o bus.o mipi_disco.o stream.o obj-$(CONFIG_SOUNDWIRE) += soundwire-bus.o +obj-$(CONFIG_ACPI) += slave.o
#Cadence Objs soundwire-cadence-objs := cadence_master.o diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c index f39a581..0dc188e 100644 --- a/drivers/soundwire/slave.c +++ b/drivers/soundwire/slave.c @@ -60,7 +60,6 @@ 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 @@ -110,5 +109,3 @@ int sdw_acpi_find_slaves(struct sdw_bus *bus)
return 0; } - -#endif