bnx2x: Missing smp_wmb for statistics state machine

Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index edd7b137b76..1e8e7e1efbd 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -4412,6 +4412,9 @@ static void bnx2x_stats_handle(struct bnx2x *bp, enum bnx2x_stats_event event)
         bnx2x_stats_stm[state][event].action(bp);
         bp->stats_state = bnx2x_stats_stm[state][event].next_state;
 
+        /* Make sure the state has been "changed" */
+        smp_wmb();
+
         if ((event != STATS_EVENT_UPDATE) || (bp->msglevel & NETIF_MSG_TIMER))
                 DP(BNX2X_MSG_STATS, "state %d -> event %d -> state %d\n",
                    state, event, bp->stats_state);