linux-kernel - [PATCH 029/173] pata_mpc52xx: inherit from ata_bmdma_port

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Date:	Mon, 25 Apr 2011 22:03:01 +0200
From:	Willy Tarreau <w@....eu>
To:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org
Cc:	Tejun Heo <tj@...nel.org>, Sergei Shtylyov <sshtylyov@...sta.com>,
	Jeff Garzik <jgarzik@...hat.com>,
	Greg Kroah-Hartman <gregkh@...e.de>
Subject: [PATCH 029/173] pata_mpc52xx: inherit from ata_bmdma_port_ops

2.6.27.59-stable review patch.  If anyone has any objections, please let us know.

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

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

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: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/ata/pata_mpc52xx.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -610,7 +610,7 @@ static struct scsi_host_template mpc52xx
 };
 
 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,


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