From: Ron Mercer <ron.mercer@qlogic.com>
Date: Mon, 1 Oct 2007 18:43:22 +0000 (-0700)
Subject: qla3xxx: bugfix: Add memory barrier before accessing rx completion.
X-Git-Tag: upstream/snapshot3+hdmi~31064^2~3
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b323e0e49fe9331ee3a7a336af879d6e303b16b3;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

qla3xxx: bugfix: Add memory barrier before accessing rx completion.

Signed-off-by: Ron Mercer <ron.mercer@qlogic.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
---

diff --git a/drivers/net/qla3xxx.c b/drivers/net/qla3xxx.c
index 69da95b..c3fe1c7 100755
--- a/drivers/net/qla3xxx.c
+++ b/drivers/net/qla3xxx.c
@@ -2248,6 +2248,7 @@ static int ql_tx_rx_clean(struct ql3_adapter *qdev,
 		qdev->rsp_consumer_index) && (work_done < work_to_do)) {
 
 		net_rsp = qdev->rsp_current;
+		rmb();
 		switch (net_rsp->opcode) {
 
 		case OPCODE_OB_MAC_IOCB_FN0: