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Message-ID: <ZNPFxtlN/STZAMEY@ziepe.ca>
Date: Wed, 9 Aug 2023 13:58:46 -0300
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>,
iommu@...ts.linux.dev, kvm@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 05/12] iommu: Change the return value of
dev_iommu_get()
On Thu, Jul 27, 2023 at 01:48:30PM +0800, Lu Baolu wrote:
> Make dev_iommu_get() return 0 for success and error numbers for failure.
> This will make the code neat and readable. No functionality changes.
>
> Reviewed-by: Jacob Pan <jacob.jun.pan@...ux.intel.com>
> Signed-off-by: Lu Baolu <baolu.lu@...ux.intel.com>
> ---
> drivers/iommu/iommu.c | 19 +++++++++++--------
> 1 file changed, 11 insertions(+), 8 deletions(-)
>
> diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> index 00309f66153b..4ba3bb692993 100644
> --- a/drivers/iommu/iommu.c
> +++ b/drivers/iommu/iommu.c
> @@ -290,20 +290,20 @@ void iommu_device_unregister(struct iommu_device *iommu)
> }
> EXPORT_SYMBOL_GPL(iommu_device_unregister);
It could probably use a nicer name too?
iommu_alloc_dev_iommu() ?
Also with Joerg's current tree we can add a device_lock_assert() to
this function, from what I can tell.
Jason
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