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/es8316.c:837:34: warning: ‘es8316_of_match’ defined but not used [-Wunused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> --- sound/soc/codecs/es8316.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/soc/codecs/es8316.c b/sound/soc/codecs/es8316.c index bd5d230c5df2..f9ec5cf82599 100644 --- a/sound/soc/codecs/es8316.c +++ b/sound/soc/codecs/es8316.c @@ -834,11 +834,13 @@ static const struct i2c_device_id es8316_i2c_id[] = { }; MODULE_DEVICE_TABLE(i2c, es8316_i2c_id); +#ifdef CONFIG_OF static const struct of_device_id es8316_of_match[] = { { .compatible = "everest,es8316", }, {}, }; MODULE_DEVICE_TABLE(of, es8316_of_match); +#endif #ifdef CONFIG_ACPI static const struct acpi_device_id es8316_acpi_match[] = { -- 2.25.1