We get 1 warning when building kernel with W=1: drivers/regulator/hi6421-regulator.c:480:14: warning: no previous prototype for 'hi6421_regulator_ldo_get_optimum_mode' [-Wmissing-prototypes]
In fact, this function is only used in the file in which it is declared and don't need a declaration, but can be made static. So this patch marks it 'static'. Signed-off-by: Baoyou Xie <[email protected]> --- drivers/regulator/hi6421-regulator.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/regulator/hi6421-regulator.c b/drivers/regulator/hi6421-regulator.c index 42dc5fb..62c5f54 100644 --- a/drivers/regulator/hi6421-regulator.c +++ b/drivers/regulator/hi6421-regulator.c @@ -477,7 +477,8 @@ static int hi6421_regulator_buck_set_mode(struct regulator_dev *rdev, return 0; } -unsigned int hi6421_regulator_ldo_get_optimum_mode(struct regulator_dev *rdev, +static unsigned int +hi6421_regulator_ldo_get_optimum_mode(struct regulator_dev *rdev, int input_uV, int output_uV, int load_uA) { struct hi6421_regulator_info *info = rdev_get_drvdata(rdev); -- 2.7.4
