linux-kernel - [PATCH 3.10 15/43] qla2xxx: Use correct offset to req-q-out for reserve calculation

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Date:	Tue, 28 Oct 2014 11:36:13 +0800
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, Arun Easi <arun.easi@...gic.com>,
	Saurav Kashyap <saurav.kashyap@...gic.com>,
	Christoph Hellwig <hch@....de>
Subject: [PATCH 3.10 15/43] qla2xxx: Use correct offset to req-q-out for reserve calculation

3.10-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: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/qla2xxx/qla_target.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/scsi/qla2xxx/qla_target.c
+++ b/drivers/scsi/qla2xxx/qla_target.c
@@ -1514,12 +1514,10 @@ static inline void qlt_unmap_sg(struct s
 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, "


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