linux-kernel - [PATCH 4.0 125/148] storvsc: Set the SRB flags correctly when no data transfer is needed

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Date:	Wed,  3 Jun 2015 21:09:55 +0900
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	stable@...r.kernel.org, "K. Y. Srinivasan" <kys@...rosoft.com>,
	Long Li <longli@...rosoft.com>,
	James Bottomley <JBottomley@...n.com>
Subject: [PATCH 4.0 125/148] storvsc: Set the SRB flags correctly when no data transfer is needed

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

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

From: "K. Y. Srinivasan" <kys@...rosoft.com>

commit dc45708ca9988656d706940df5fd102672c5de92 upstream.

Set the SRB flags correctly when there is no data transfer.  Without this
change some IHV drivers will fail valid commands such as TEST_UNIT_READY.

Signed-off-by: K. Y. Srinivasan <kys@...rosoft.com>
Reviewed-by: Long Li <longli@...rosoft.com>
Signed-off-by: James Bottomley <JBottomley@...n.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

---
 drivers/scsi/storvsc_drv.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/drivers/scsi/storvsc_drv.c
+++ b/drivers/scsi/storvsc_drv.c
@@ -1565,8 +1565,7 @@ static int storvsc_queuecommand(struct S
 		break;
 	default:
 		vm_srb->data_in = UNKNOWN_TYPE;
-		vm_srb->win8_extension.srb_flags |= (SRB_FLAGS_DATA_IN |
-						     SRB_FLAGS_DATA_OUT);
+		vm_srb->win8_extension.srb_flags |= SRB_FLAGS_NO_DATA_TRANSFER;
 		break;
 	}
 


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