netdev - [net-next 27/36] bnx2x: Missing smp_wmb for statistics state machine

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Date:	Wed, 12 Aug 2009 21:23:56 +0300
From:	"Eilon Greenstein" <eilong@...adcom.com>
To:	"David Miller" <davem@...emloft.net>
cc:	netdev@...r.kernel.org, "Vladislav Zolotarov" <vladz@...adcom.com>
Subject: [net-next 27/36] bnx2x: Missing smp_wmb for statistics state
 machine

Signed-off-by: Vladislav Zolotarov <vladz@...adcom.com>
Signed-off-by: Eilon Greenstein <eilong@...adcom.com>
---
 drivers/net/bnx2x_main.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 656ee97..bcf8362 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -4411,6 +4411,9 @@ 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);
-- 
1.5.4.3




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