The driver can match only via the DT table so the table should be always used and the of_match_ptr does not have any sense (this also allows ACPI matching via PRP0001, even though it is not relevant here). drivers/spi/spi-pic32.c:857:34: error: ‘pic32_spi_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/spi/spi-pic32.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/spi/spi-pic32.c b/drivers/spi/spi-pic32.c index 5a64ad0c94fe..04896e7ff2c1 100644 --- a/drivers/spi/spi-pic32.c +++ b/drivers/spi/spi-pic32.c @@ -863,7 +863,7 @@ MODULE_DEVICE_TABLE(of, pic32_spi_of_match); static struct platform_driver pic32_spi_driver = { .driver = { .name = "spi-pic32", - .of_match_table = of_match_ptr(pic32_spi_of_match), + .of_match_table = pic32_spi_of_match, }, .probe = pic32_spi_probe, .remove_new = pic32_spi_remove, -- 2.34.1