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-rw-r--r--net/core/drop_monitor.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/drop_monitor.c b/net/core/drop_monitor.c
index 000ec8b66d1e..35d31b007da4 100644
--- a/net/core/drop_monitor.c
+++ b/net/core/drop_monitor.c
@@ -52,7 +52,7 @@ static int trace_state = TRACE_OFF;
static DEFINE_MUTEX(net_dm_mutex);
struct per_cpu_dm_data {
- spinlock_t lock;
+ spinlock_t lock; /* Protects 'skb' and 'send_timer' */
struct sk_buff *skb;
struct work_struct dm_alert_work;
struct timer_list send_timer;