[PATCH 6/7] hwrng: pic32 - Fix W=1 unused variable warning

["Herbert Xu" <herbert@xxxxxxxxxxxxxxxxxxx>]

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

Signed-off-by: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
---

 drivers/char/hw_random/pic32-rng.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/hw_random/pic32-rng.c b/drivers/char/hw_random/pic32-rng.c
index 81080cb2294e7..e8210c1715cfd 100644
--- 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 */ }
 };