hwrng: pic32 - 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/pic32-rng.c b/drivers/char/hw_random/pic32-rng.c
index 81080cb2294e7b2a00636d5da889f4f2db74d8b4..e8210c1715cfd50aefff9c561b30b3fa389a873b 100644 (file)
--- a/drivers/char/hw_random/pic32-rng.c
+++ b/drivers/char/hw_random/pic32-rng.c
@@ -119,7 +119,7 @@ static int pic32_rng_remove(struct platform_device *pdev)
        return 0;
 }
 
-static const struct of_device_id pic32_rng_of_match[] = {
+static const struct of_device_id pic32_rng_of_match[] __maybe_unused = {
        { .compatible   = "microchip,pic32mzda-rng", },
        { /* sentinel */ }
 };