Commit 9b1a12d2 authored Jan 20, 2016 by Baoquan He Committed by Joerg Roedel Jan 29, 2016

iommu/amd: Correct the wrong setting of alias DTE in do_attach



In below commit alias DTE is set when its peripheral is
setting DTE. However there's a code bug here to wrongly
set the alias DTE, correct it in this patch.

commit e25bfb56
Author: Joerg Roedel <jroedel@suse.de>
Date:   Tue Oct 20 17:33:38 2015 +0200

    iommu/amd: Set alias DTE in do_attach/do_detach

Signed-off-by: Baoquan He <bhe@redhat.com>
Tested-by: Mark Hounschell <markh@compro.net>
Cc: stable@vger.kernel.org # v4.4
Signed-off-by: Joerg Roedel <jroedel@suse.de>

parent da972fb1

drivers/iommu/amd_iommu.c

+1 −1

Original line number	Original line	Diff line number	Diff line
	@@ -2049,7 +2049,7 @@ static void do_attach(struct iommu_dev_data *dev_data,
	/* Update device table */		/* Update device table */
	set_dte_entry(dev_data->devid, domain, ats);		set_dte_entry(dev_data->devid, domain, ats);
	if (alias != dev_data->devid)		if (alias != dev_data->devid)
	set_dte_entry(dev_data->devid, domain, ats);		set_dte_entry(alias, domain, ats);

	device_flush_dte(dev_data);		device_flush_dte(dev_data);
	}		}