Driver can match via ID or OF ID table, thus several OF-related methods will be unused. Mark the OF structures as __maybe_unused so compiler can drop them: drivers/spi/spi-rspi.c:1203:29: error: ‘qspi_ops’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/spi/spi-rspi.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/spi/spi-rspi.c b/drivers/spi/spi-rspi.c index f494c86bafea..4724854e6726 100644 --- a/drivers/spi/spi-rspi.c +++ b/drivers/spi/spi-rspi.c @@ -1190,7 +1190,7 @@ static const struct spi_ops rspi_ops = { .num_hw_ss = 2, }; -static const struct spi_ops rspi_rz_ops = { +static const struct spi_ops rspi_rz_ops __maybe_unused = { .set_config_register = rspi_rz_set_config_register, .transfer_one = rspi_rz_transfer_one, .min_div = 2, @@ -1200,7 +1200,7 @@ static const struct spi_ops rspi_rz_ops = { .num_hw_ss = 1, }; -static const struct spi_ops qspi_ops = { +static const struct spi_ops qspi_ops __maybe_unused = { .set_config_register = qspi_set_config_register, .transfer_one = qspi_transfer_one, .extra_mode_bits = SPI_TX_DUAL | SPI_TX_QUAD | @@ -1212,8 +1212,7 @@ static const struct spi_ops qspi_ops = { .num_hw_ss = 1, }; -#ifdef CONFIG_OF -static const struct of_device_id rspi_of_match[] = { +static const struct of_device_id rspi_of_match[] __maybe_unused = { /* RSPI on legacy SH */ { .compatible = "renesas,rspi", .data = &rspi_ops }, /* RSPI on RZ/A1H */ @@ -1225,6 +1224,7 @@ static const struct of_device_id rspi_of_match[] = { MODULE_DEVICE_TABLE(of, rspi_of_match); +#ifdef CONFIG_OF static void rspi_reset_control_assert(void *data) { reset_control_assert(data); -- 2.34.1