linux-kernel - [PATCH 1/8] [SCSI] mvsas: fix expander link error

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Date:	Thu, 29 Sep 2011 00:32:37 -0700
From:	yxlraid@...il.com
To:	JBottomley@...allels.com
Cc:	jack_wang@...sh.com, lucas.demarchi@...fusion.mobi,
	maciej.trela@...el.com, dan.j.williams@...el.com,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org,
	Xiangliang Yu <yuxiangl@...vell.com>
Subject: [PATCH 1/8] [SCSI] mvsas: fix expander link error

From: Xiangliang Yu <yuxiangl@...vell.com>

-- fix expander link error

Signed-off-by: Xiangliang Yu <yuxiangl@...vell.com>
---
 drivers/scsi/mvsas/mv_sas.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/mvsas/mv_sas.c b/drivers/scsi/mvsas/mv_sas.c
index 4958fef..86847c6 100644
--- a/drivers/scsi/mvsas/mv_sas.c
+++ b/drivers/scsi/mvsas/mv_sas.c
@@ -426,7 +426,7 @@ static int mvs_task_prep_smp(struct mvs_info *mvi,
 	/* generate open address frame hdr (first 12 bytes) */
 	/* initiator, SMP, ftype 1h */
 	buf_oaf[0] = (1 << 7) | (PROTOCOL_SMP << 4) | 0x01;
-	buf_oaf[1] = dev->linkrate & 0xf;
+	buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
 	*(u16 *)(buf_oaf + 2) = 0xFFFF;		/* SAS SPEC */
 	memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);
 
@@ -571,7 +571,7 @@ static int mvs_task_prep_ata(struct mvs_info *mvi,
 	/* generate open address frame hdr (first 12 bytes) */
 	/* initiator, STP, ftype 1h */
 	buf_oaf[0] = (1 << 7) | (PROTOCOL_STP << 4) | 0x1;
-	buf_oaf[1] = dev->linkrate & 0xf;
+	buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
 	*(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1);
 	memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);
 
@@ -679,7 +679,7 @@ static int mvs_task_prep_ssp(struct mvs_info *mvi,
 	/* generate open address frame hdr (first 12 bytes) */
 	/* initiator, SSP, ftype 1h */
 	buf_oaf[0] = (1 << 7) | (PROTOCOL_SSP << 4) | 0x1;
-	buf_oaf[1] = dev->linkrate & 0xf;
+	buf_oaf[1] = min(sas_port->linkrate, dev->linkrate) & 0xf;
 	*(u16 *)(buf_oaf + 2) = cpu_to_be16(mvi_dev->device_id + 1);
 	memcpy(buf_oaf + 4, dev->sas_addr, SAS_ADDR_SIZE);
 
-- 
1.7.4.4

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