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). sound/soc/atmel/sam9x5_wm8731.c:189:34: error: ‘sam9x5_wm8731_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- sound/soc/atmel/sam9x5_wm8731.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/soc/atmel/sam9x5_wm8731.c b/sound/soc/atmel/sam9x5_wm8731.c index 99310e40e7a6..2bc622e86376 100644 --- a/sound/soc/atmel/sam9x5_wm8731.c +++ b/sound/soc/atmel/sam9x5_wm8731.c @@ -195,7 +195,7 @@ MODULE_DEVICE_TABLE(of, sam9x5_wm8731_of_match); static struct platform_driver sam9x5_wm8731_driver = { .driver = { .name = DRV_NAME, - .of_match_table = of_match_ptr(sam9x5_wm8731_of_match), + .of_match_table = sam9x5_wm8731_of_match, }, .probe = sam9x5_wm8731_driver_probe, .remove = sam9x5_wm8731_driver_remove, -- 2.34.1