The driver can match by multiple methods. Its of_device_id table is referenced via of_match_ptr() so it will be unused for !CONFIG_OF builds: sound/soc/codecs/max98371.c:411:34: warning: ‘max98371_of_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- sound/soc/codecs/max98371.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/codecs/max98371.c b/sound/soc/codecs/max98371.c index dfee05f985bd..0b438303e1d5 100644 --- a/sound/soc/codecs/max98371.c +++ b/sound/soc/codecs/max98371.c @@ -408,11 +408,13 @@ static const struct i2c_device_id max98371_i2c_id[] = { MODULE_DEVICE_TABLE(i2c, max98371_i2c_id); +#ifdef CONFIG_OF static const struct of_device_id max98371_of_match[] = { { .compatible = "maxim,max98371", }, { } }; MODULE_DEVICE_TABLE(of, max98371_of_match); +#endif static struct i2c_driver max98371_i2c_driver = { .driver = { -- 2.25.1