linux-kernel - Re: [PATCH v2] iommu/fsl: Fix warning resulting from adding PCI device twice

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Date:	Fri, 5 Sep 2014 16:04:15 +0200
From:	Joerg Roedel <joro@...tes.org>
To:	Varun Sethi <Varun.Sethi@...escale.com>
Cc:	iommu@...ts.linux-foundation.org, alex.williamson@...hat.com,
	Emilian.Medve@...escale.com, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] iommu/fsl: Fix warning resulting from adding PCI
 device twice

On Thu, Sep 04, 2014 at 05:08:45PM +0530, Varun Sethi wrote:
> iommu_group_get_for_dev determines the iommu group for the PCI device and adds
> the device to the group.
> 
> In the PAMU driver we were again adding the device to the same group without checking
> if the device already had an iommu group. This resulted in the following warning.
>
> [...]
> 
> Signed-off-by: Varun Sethi <Varun.Sethi@...escale.com>
> ---
> v2 changes
> - directly check for the device iommu_group
> 
>  drivers/iommu/fsl_pamu_domain.c |   10 ++++++++--
>  1 file changed, 8 insertions(+), 2 deletions(-)

Applied to iommu/fixes and added stable tag, thanks.

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