linux-kernel - [PATCH] ethernet: micrel: Use DIV_ROUND_CLOSEST directly to make it readable

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Message-ID: <1567698828-26825-1-git-send-email-zhongjiang@huawei.com>
Date:   Thu, 5 Sep 2019 23:53:48 +0800
From:   zhong jiang <zhongjiang@...wei.com>
To:     <davem@...emloft.net>
CC:     <kstewart@...uxfoundation.org>, <gregkh@...uxfoundation.org>,
        <zhongjiang@...wei.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] ethernet: micrel: 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/net/ethernet/micrel/ksz884x.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/micrel/ksz884x.c b/drivers/net/ethernet/micrel/ksz884x.c
index 3103446..e102e15 100644
--- a/drivers/net/ethernet/micrel/ksz884x.c
+++ b/drivers/net/ethernet/micrel/ksz884x.c
@@ -2166,7 +2166,7 @@ static void sw_get_broad_storm(struct ksz_hw *hw, u8 *percent)
 	num = (data & BROADCAST_STORM_RATE_HI);
 	num <<= 8;
 	num |= (data & BROADCAST_STORM_RATE_LO) >> 8;
-	num = (num * 100 + BROADCAST_STORM_VALUE / 2) / BROADCAST_STORM_VALUE;
+	num = DIV_ROUND_CLOSEST(num * 100, BROADCAST_STORM_VALUE);
 	*percent = (u8) num;
 }
 
-- 
1.7.12.4