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

Message ID 1250101436.27379.179.camel@lb-tlvb-eilong
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Eilon Greenstein Aug. 12, 2009, 6:23 p.m. UTC 
Signed-off-by: Vladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
---
 drivers/net/bnx2x_main.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
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Patch

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);