The rcu callback free_dm_hw_stat() just calls a kfree(),
so we use kfree_rcu() instead of the call_rcu(free_dm_hw_stat).

Signed-off-by: Lai Jiangshan <[email protected]>
---
 net/core/drop_monitor.c |   12 ++----------
 1 files changed, 2 insertions(+), 10 deletions(-)

diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 36e603c..32365e7 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -207,14 +207,6 @@ static void trace_napi_poll_hit(void *ignore, struct 
napi_struct *napi)
        rcu_read_unlock();
 }
 
-
-static void free_dm_hw_stat(struct rcu_head *head)
-{
-       struct dm_hw_stat_delta *n;
-       n = container_of(head, struct dm_hw_stat_delta, rcu);
-       kfree(n);
-}
-
 static int set_all_monitor_traces(int state)
 {
        int rc = 0;
@@ -245,7 +237,7 @@ static int set_all_monitor_traces(int state)
                list_for_each_entry_safe(new_stat, temp, &hw_stats_list, list) {
                        if (new_stat->dev == NULL) {
                                list_del_rcu(&new_stat->list);
-                               call_rcu(&new_stat->rcu, free_dm_hw_stat);
+                               kfree_rcu(new_stat, rcu);
                        }
                }
                break;
@@ -314,7 +306,7 @@ static int dropmon_net_event(struct notifier_block 
*ev_block,
                                new_stat->dev = NULL;
                                if (trace_state == TRACE_OFF) {
                                        list_del_rcu(&new_stat->list);
-                                       call_rcu(&new_stat->rcu, 
free_dm_hw_stat);
+                                       kfree_rcu(new_stat, rcu);
                                        break;
                                }
                        }
-- 
1.7.4
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