[PATCH] mailbox: pcc: make pcc_mbox_driver static

[Jason Yan]

Fix the following sparse warning:

drivers/mailbox/pcc.c:571:24: warning: symbol 'pcc_mbox_driver' was not
declared. Should it be static?

Reported-by: Hulk Robot <hulkci@xxxxxxxxxx>
Signed-off-by: Jason Yan <yanaijie@xxxxxxxxxx>
---
 drivers/mailbox/pcc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index 34844b7a3675..8c7fac38bb1c 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -568,7 +568,7 @@ static int pcc_mbox_probe(struct platform_device *pdev)
 	return ret;
 }
 
-struct platform_driver pcc_mbox_driver = {
+static struct platform_driver pcc_mbox_driver = {
 	.probe = pcc_mbox_probe,
 	.driver = {
 		.name = "PCCT",
-- 
2.17.2