[PATCH] spi: bcm2835: Make polling_limit_us static

[Jason Yan]

This eliminates the following sparse warning:

drivers/spi/spi-bcm2835.c:78:14: warning: symbol 'polling_limit_us' was
not declared. Should it be static?

Reported-by: Hulk Robot <hulkci at huawei.com>
Signed-off-by: Jason Yan <yanaijie at huawei.com>
---
 drivers/spi/spi-bcm2835.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/spi/spi-bcm2835.c b/drivers/spi/spi-bcm2835.c
index 5519f1eda238..b87116e9b413 100644
--- a/drivers/spi/spi-bcm2835.c
+++ b/drivers/spi/spi-bcm2835.c
@@ -75,7 +75,7 @@
 #define DRV_NAME	"spi-bcm2835"
 
 /* define polling limits */
-unsigned int polling_limit_us = 30;
+static unsigned int polling_limit_us = 30;
 module_param(polling_limit_us, uint, 0664);
 MODULE_PARM_DESC(polling_limit_us,
 		 "time in us to run a transfer in polling mode\n");
-- 
2.25.4