[PATCH] ACPI: PM: Fix "multiple definition of acpi_sleep_state_supported" for ARM64

[Dexuan Cui]

If CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT is not set, the dummy version of
the function should be static.

Fixes: 1e2c3f0f1e93 ("ACPI: PM: Make acpi_sleep_state_supported() non-static")
Signed-off-by: Dexuan Cui <de...@microsoft.com>
Reported-by: kbuild test robot <l...@intel.com>
---

Sorry for not doing it right in the previous patch!

The patch fixes the build errors on ARM64:

   drivers/net/ethernet/qualcomm/emac/emac-phy.o: In function 
`acpi_sleep_state_supported':
>> emac-phy.c:(.text+0x1d8): multiple definition of `acpi_sleep_state_supported'
   drivers/net/ethernet/qualcomm/emac/emac.o:emac.c:(.text+0xbf8): first 
defined here
   drivers/net/ethernet/qualcomm/emac/emac-sgmii.o: In function 
`acpi_sleep_state_supported':
   emac-sgmii.c:(.text+0x548): multiple definition of 
`acpi_sleep_state_supported'
   drivers/net/ethernet/qualcomm/emac/emac.o:emac.c:(.text+0xbf8): first 
defined here


 include/acpi/acpi_bus.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 4ce59bdc852e..8ffc4acf2b56 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -657,7 +657,7 @@ static inline int acpi_pm_set_bridge_wakeup(struct device 
*dev, bool enable)
 #ifdef CONFIG_ACPI_SYSTEM_POWER_STATES_SUPPORT
 bool acpi_sleep_state_supported(u8 sleep_state);
 #else
-bool acpi_sleep_state_supported(u8 sleep_state) { return false; }
+static bool acpi_sleep_state_supported(u8 sleep_state) { return false; }
 #endif
 
 #ifdef CONFIG_ACPI_SLEEP
-- 
2.17.1