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/crypto/img-hash.c:930:34: error: ‘img_hash_match’ defined but not used [-Werror=unused-const-variable=] Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> --- drivers/crypto/img-hash.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/crypto/img-hash.c b/drivers/crypto/img-hash.c index fe93d19e3044..4e9a6660d791 100644 --- a/drivers/crypto/img-hash.c +++ b/drivers/crypto/img-hash.c @@ -1106,7 +1106,7 @@ static struct platform_driver img_hash_driver = { .driver = { .name = "img-hash-accelerator", .pm = &img_hash_pm_ops, - .of_match_table = of_match_ptr(img_hash_match), + .of_match_table = img_hash_match, } }; module_platform_driver(img_hash_driver); -- 2.34.1