Without the I2C driver, we get a few warnings:
drivers/power/bq27xxx_battery.c:288:12: error: 'bq27xxx_regs' defined but not used [-Werror=unused-variable]
static u8 *bq27xxx_regs[] = {
^
drivers/power/bq27xxx_battery.c:994:12: error: 'bq27xxx_powersupply_init' defined but not used [-Werror=unused-function]
static int bq27xxx_powersupply_init(struct bq27xxx_device_info *di,
^
drivers/power/bq27xxx_battery.c:1029:13: error: 'bq27xxx_powersupply_unregister' defined but not used [-Werror=unused-function]
static void bq27xxx_powersupply_unregister(struct bq27xxx_device_info *di)
^
In mainline kernels, this was addressed by a larger rework in 703df6c09795 ("power:
bq27xxx_battery: Reorganize I2C into a module"). We probably don't want this backported
into stable kernels, so instead let's shut up the warnings by marking the symbols
as __maybe_unused.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
---
drivers/power/bq27xxx_battery.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/power/bq27xxx_battery.c b/drivers/power/bq27xxx_battery.c
index 880233ce9343..6c3a447f378b 100644
--- a/drivers/power/bq27xxx_battery.c
+++ b/drivers/power/bq27xxx_battery.c
@@ -285,7 +285,7 @@ static u8 bq27421_regs[] = {
0x18, /* AP */
};
-static u8 *bq27xxx_regs[] = {
+static u8 *bq27xxx_regs[] __maybe_unused = {
[BQ27000] = bq27000_regs,
[BQ27010] = bq27010_regs,
[BQ27500] = bq27500_regs,
@@ -991,7 +991,7 @@ static void bq27xxx_external_power_changed(struct power_supply *psy)
schedule_delayed_work(&di->work, 0);
}
-static int bq27xxx_powersupply_init(struct bq27xxx_device_info *di,
+static int __maybe_unused bq27xxx_powersupply_init(struct bq27xxx_device_info *di,
const char *name)
{
int ret;
@@ -1026,7 +1026,7 @@ static int bq27xxx_powersupply_init(struct bq27xxx_device_info *di,
return 0;
}
-static void bq27xxx_powersupply_unregister(struct bq27xxx_device_info *di)
+static void __maybe_unused bq27xxx_powersupply_unregister(struct bq27xxx_device_info *di)
{
/*
* power_supply_unregister call bq27xxx_battery_get_property which
--
2.9.0