linux-kernel - [PATCH 1/4] media: dvb-frontends: Use DIV_ROUND

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Message-ID: <1567700092-27769-2-git-send-email-zhongjiang@huawei.com>
Date:   Fri, 6 Sep 2019 00:14:49 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <mchehab@...nel.org>
CC:     <hansverk@...co.com>, <daniel.vetter@...ll.ch>,
        <zhongjiang@...wei.com>, <linux-media@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH 1/4] media: dvb-frontends: Use DIV_ROUND_CLOSEST directly to make it readable

The kernel.h macro DIV_ROUND_CLOSEST performs the computation (x + d/2)/d
but is perhaps more readable.

Signed-off-by: zhong jiang <zhongjiang@...wei.com>
---
 drivers/media/dvb-frontends/mt312.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/media/dvb-frontends/mt312.c b/drivers/media/dvb-frontends/mt312.c
index 7cae7d6..251ff41 100644
--- a/drivers/media/dvb-frontends/mt312.c
+++ b/drivers/media/dvb-frontends/mt312.c
@@ -137,7 +137,7 @@ static inline int mt312_writereg(struct mt312_state *state,
 
 static inline u32 mt312_div(u32 a, u32 b)
 {
-	return (a + (b / 2)) / b;
+	return DIV_ROUND_CLOSEST(a, b);
 }
 
 static int mt312_reset(struct mt312_state *state, const u8 full)
-- 
1.7.12.4