linux-kernel - [34-longterm 066/247] pata_mpc52xx: inherit from ata_bmdma_port

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Message-Id: <1308850515-15242-7-git-send-email-paul.gortmaker@windriver.com>
Date:	Thu, 23 Jun 2011 13:32:14 -0400
From:	Paul Gortmaker <paul.gortmaker@...driver.com>
To:	stable@...nel.org, linux-kernel@...r.kernel.org
Cc:	stable-review@...nel.org, Tejun Heo <tj@...nel.org>,
	Jeff Garzik <jgarzik@...hat.com>,
	Paul Gortmaker <paul.gortmaker@...driver.com>
Subject: [34-longterm 066/247] pata_mpc52xx: inherit from ata_bmdma_port_ops

From: Tejun Heo <tj@...nel.org>

                   -------------------
    This is a commit scheduled for the next v2.6.34 longterm release.
    If you see a problem with using this for longterm, please comment.
                   -------------------

commit 77c5fd19075d299fe820bb59bb21b0b113676e20 upstream.

pata_mpc52xx supports BMDMA but inherits ata_sff_port_ops which
triggers BUG_ON() when a DMA command is issued.  Fix it.

Signed-off-by: Tejun Heo <tj@...nel.org>
Reported-by: Roman Fietze <roman.fietze@...emotive.de>
Cc: Sergei Shtylyov <sshtylyov@...sta.com>
Signed-off-by: Jeff Garzik <jgarzik@...hat.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@...driver.com>
---
 drivers/ata/pata_mpc52xx.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 9f5b053..e80ebcb 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -610,7 +610,7 @@ static struct scsi_host_template mpc52xx_ata_sht = {
 };
 
 static struct ata_port_operations mpc52xx_ata_port_ops = {
-	.inherits		= &ata_sff_port_ops,
+	.inherits		= &ata_bmdma_port_ops,
 	.sff_dev_select		= mpc52xx_ata_dev_select,
 	.set_piomode		= mpc52xx_ata_set_piomode,
 	.set_dmamode		= mpc52xx_ata_set_dmamode,
-- 
1.7.4.4

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