There are two pieces of data being exported from drivers/acpi/scan.c (acpi_device_lock and acpi_wakeup_device_list) that don't have their definitions declared in anything scan.c is including. Fix the following sparse warnings by including sleep.h to add the declarations of acpi_device_lock and acpi_wakeup_device_list to fix the followng sparse warnings: drivers/acpi/scan.c:42:1: warning: symbol 'acpi_device_lock' was not declared. Should it be static? drivers/acpi/scan.c:43:1: warning: symbol 'acpi_wakeup_device_list' was not declared. Should it be static? Signed-off-by: Ben Dooks <ben.dooks@xxxxxxxxxxxxxxx> --- drivers/acpi/scan.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index 1c3e1e2bb0b5..9556aff69453 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -23,6 +23,7 @@ #include <linux/dma-direct.h> #include "internal.h" +#include "sleep.h" extern struct acpi_device *acpi_root; -- 2.40.1
