From: Julia Lawall <julia@diku.dk>
Date: Sat, 1 Aug 2009 19:50:31 +0000 (+0200)
Subject: drivers/net/wireless: Use DIV_ROUND_CLOSEST
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=87cdb9894b9367237f25e5a4c381eb8e594e782b;p=linux-beck.git

drivers/net/wireless: Use DIV_ROUND_CLOSEST

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

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@haskernel@
@@

#include <linux/kernel.h>

@depends on haskernel@
expression x,__divisor;
@@

- (((x) + ((__divisor) / 2)) / (__divisor))
+ DIV_ROUND_CLOSEST(x,__divisor)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/strip.c b/drivers/net/wireless/strip.c
index 73300c226f67..ef2cb20e96ad 100644
--- a/drivers/net/wireless/strip.c
+++ b/drivers/net/wireless/strip.c
@@ -1550,9 +1550,12 @@ static int strip_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (time_after(jiffies, strip_info->pps_timer + HZ)) {
 		unsigned long t = jiffies - strip_info->pps_timer;
-		unsigned long rx_pps_count = (strip_info->rx_pps_count * HZ * 8 + t / 2) / t;
-		unsigned long tx_pps_count = (strip_info->tx_pps_count * HZ * 8 + t / 2) / t;
-		unsigned long sx_pps_count = (strip_info->sx_pps_count * HZ * 8 + t / 2) / t;
+		unsigned long rx_pps_count =
+			DIV_ROUND_CLOSEST(strip_info->rx_pps_count*HZ*8, t);
+		unsigned long tx_pps_count =
+			DIV_ROUND_CLOSEST(strip_info->tx_pps_count*HZ*8, t);
+		unsigned long sx_pps_count =
+			DIV_ROUND_CLOSEST(strip_info->sx_pps_count*HZ*8, t);
 
 		strip_info->pps_timer = jiffies;
 		strip_info->rx_pps_count = 0;