Fixes: 19380b8e214c ("battery: Add the battery hooking API")
Signed-off-by: Fengguang Wu <fengguang.wu@xxxxxxxxx>
---
battery.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 1794408..9324591 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -640,9 +640,9 @@ static const struct device_attribute alarm_attr = {
LIST_HEAD(acpi_battery_list);
LIST_HEAD(battery_hook_list);
-DEFINE_MUTEX(hook_mutex);
+static DEFINE_MUTEX(hook_mutex);
-void __battery_hook_unregister(struct acpi_battery_hook *hook, int force)
+static void __battery_hook_unregister(struct acpi_battery_hook *hook, int force)
{
struct list_head *position;
struct acpi_battery *battery;
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