[PATCH -next] char: use DIV_ROUND_UP macro to do calculation

[Zheng Yongjun]

Don't open-code DIV_ROUND_UP() kernel macro.

Signed-off-by: Zheng Yongjun <zhengyongjun3@xxxxxxxxxx>
---
 drivers/char/random.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 2a41b21623ae..37b59e05d298 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -359,7 +359,7 @@
 #define EXTRACT_SIZE		10
 
 
-#define LONGS(x) (((x) + sizeof(unsigned long) - 1)/sizeof(unsigned long))
+#define LONGS(x) DIV_ROUND_UP(x, sizeof(unsigned long))
 
 /*
  * To allow fractional bits to be tracked, the entropy_count field is
-- 
2.22.0