The driver will match mostly by DT table (even thought there is regular ID table) so there is little benefit in of_match_ptr (this also allows ACPI matching via PRP0001, even though it might not be relevant here). drivers/net/ieee802154/mcr20a.c:1340:34: error: ‘mcr20a_of_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/net/ieee802154/mcr20a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ieee802154/mcr20a.c b/drivers/net/ieee802154/mcr20a.c index f53d185e0568..87abe3b46316 100644 --- a/drivers/net/ieee802154/mcr20a.c +++ b/drivers/net/ieee802154/mcr20a.c @@ -1352,7 +1352,7 @@ MODULE_DEVICE_TABLE(spi, mcr20a_device_id); static struct spi_driver mcr20a_driver = { .id_table = mcr20a_device_id, .driver = { - .of_match_table = of_match_ptr(mcr20a_of_match), + .of_match_table = mcr20a_of_match, .name = "mcr20a", }, .probe = mcr20a_probe, -- 2.34.1