[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>

1 files 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 @@ skip:
         }
 
         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;