From 789675e216617b1331875c42a81f58227a06df91 Mon Sep 17 00:00:00 2001
From: Eric Dumazet <dada1@cosmosbay.com>
Date: Thu, 3 Jan 2008 20:40:01 -0800
Subject: [PATCH] [NET]: Avoid divides in net/core/gen_estimator.c

We can void divides (as seen with CONFIG_CC_OPTIMIZE_FOR_SIZE=y on x86)
changing ((HZ<<idx)/4) to ((HZ/4) << idx)

Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 net/core/gen_estimator.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/net/core/gen_estimator.c b/net/core/gen_estimator.c
index daadbcc4e8dd..86037d16f199 100644
--- a/net/core/gen_estimator.c
+++ b/net/core/gen_estimator.c
@@ -135,7 +135,7 @@ static void est_timer(unsigned long arg)
 	}
 
 	if (!list_empty(&elist[idx].list))
-		mod_timer(&elist[idx].timer, jiffies + ((HZ<<idx)/4));
+		mod_timer(&elist[idx].timer, jiffies + ((HZ/4) << idx));
 	rcu_read_unlock();
 }
 
@@ -191,7 +191,7 @@ int gen_new_estimator(struct gnet_stats_basic *bstats,
 	}
 
 	if (list_empty(&elist[idx].list))
-		mod_timer(&elist[idx].timer, jiffies + ((HZ<<idx)/4));
+		mod_timer(&elist[idx].timer, jiffies + ((HZ/4) << idx));
 
 	list_add_rcu(&est->list, &elist[idx].list);
 	return 0;