linux-kernel - Re: [PATCH v7 02/12] iommu/arm-smmu-v3: Remove unrecoverable faults reporting

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Message-ID: <20231201154230.GC1489931@ziepe.ca>
Date:   Fri, 1 Dec 2023 11:42:30 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Nicolin Chen <nicolinc@...dia.com>,
        Yi Liu <yi.l.liu@...el.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Yan Zhao <yan.y.zhao@...el.com>, iommu@...ts.linux.dev,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 02/12] iommu/arm-smmu-v3: Remove unrecoverable faults
 reporting

On Wed, Nov 15, 2023 at 11:02:16AM +0800, Lu Baolu wrote:
> No device driver registers fault handler to handle the reported
> unrecoveraable faults. Remove it to avoid dead code.
> 
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
> ---
>  drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 46 ++++++---------------
>  1 file changed, 13 insertions(+), 33 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

If we do bring this back it will be in some form where the opaque
driver event information is delivered to userspace to forward to the
VM.

Jason