hwrng: hisi - Fix W=1 unused variable warning

This patch fixes an unused variable warning when this driver is
built-in with CONFIG_OF=n.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/char/hw_random/hisi-rng.c b/drivers/char/hw_random/hisi-rng.c
index 6815e17a9834ca141b04f0fdae20f4101285ded5..96438f85cafa7124d85f3db377465e342c8d3038 100644 (file)
--- a/drivers/char/hw_random/hisi-rng.c
+++ b/drivers/char/hw_random/hisi-rng.c
@@ -99,7 +99,7 @@ static int hisi_rng_probe(struct platform_device *pdev)
        return 0;
 }
 
-static const struct of_device_id hisi_rng_dt_ids[] = {
+static const struct of_device_id hisi_rng_dt_ids[] __maybe_unused = {
        { .compatible = "hisilicon,hip04-rng" },
        { .compatible = "hisilicon,hip05-rng" },
        { }