From: Eilon Greenstein <eilong@broadcom.com>
Date: Thu, 22 Jan 2009 06:01:29 +0000 (+0000)
Subject: bnx2x: Missing rmb when waiting for FW response
X-Git-Tag: v2.6.29-rc3~23^2~22
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=5650d9d4cbf3898d3f9725ccad5dfca6bc086324;p=karo-tx-linux.git

bnx2x: Missing rmb when waiting for FW response

Waiting for the FW to response requires a memory barrier

Signed-off-by: Michal Kalderon <michals@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/drivers/net/bnx2x_main.c b/drivers/net/bnx2x_main.c
index 71fbf2dbda3b..f71b8a5872b3 100644
--- a/drivers/net/bnx2x_main.c
+++ b/drivers/net/bnx2x_main.c
@@ -6622,6 +6622,7 @@ static int bnx2x_stop_leading(struct bnx2x *bp)
 		}
 		cnt--;
 		msleep(1);
+		rmb(); /* Refresh the dsb_sp_prod */
 	}
 	bp->state = BNX2X_STATE_CLOSING_WAIT4_UNLOAD;
 	bp->fp[0].state = BNX2X_FP_STATE_CLOSED;