linux-kernel - [PATCH 3.13 049/105] qla2xxx: Use correct offset to req-q-out for reserve calculation

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Message-Id: <1414436240-13879-50-git-send-email-kamal@canonical.com>
Date:	Mon, 27 Oct 2014 11:56:24 -0700
From:	Kamal Mostafa <kamal@...onical.com>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org,
	kernel-team@...ts.ubuntu.com
Cc:	Arun Easi <arun.easi@...gic.com>,
	Saurav Kashyap <saurav.kashyap@...gic.com>,
	Christoph Hellwig <hch@....de>,
	Kamal Mostafa <kamal@...onical.com>
Subject: [PATCH 3.13 049/105] qla2xxx: Use correct offset to req-q-out for reserve calculation

3.13.11.10 -stable review patch.  If anyone has any objections, please let me know.

------------------

From: Arun Easi <arun.easi@...gic.com>

commit 75554b68ac1e018bca00d68a430b92ada8ab52dd upstream.

Signed-off-by: Arun Easi <arun.easi@...gic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@...gic.com>
Signed-off-by: Christoph Hellwig <hch@....de>
Signed-off-by: Kamal Mostafa <kamal@...onical.com>
---
 drivers/scsi/qla2xxx/qla_target.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c
index 358c176..33682a5 100644
--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1361,12 +1361,10 @@ static inline void qlt_unmap_sg(struct scsi_qla_host *vha,
 static int qlt_check_reserve_free_req(struct scsi_qla_host *vha,
 	uint32_t req_cnt)
 {
-	struct qla_hw_data *ha = vha->hw;
-	device_reg_t __iomem *reg = ha->iobase;
 	uint32_t cnt;
 
 	if (vha->req->cnt < (req_cnt + 2)) {
-		cnt = (uint16_t)RD_REG_DWORD(&reg->isp24.req_q_out);
+		cnt = (uint16_t)RD_REG_DWORD(vha->req->req_q_out);
 
 		ql_dbg(ql_dbg_tgt, vha, 0xe00a,
 		    "Request ring circled: cnt=%d, vha->->ring_index=%d, "
-- 
1.9.1

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