From: Nicolin Chen <nicolinc@nvidia.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: "quic_saipraka@quicinc.com" <quic_saipraka@quicinc.com>,
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Subject: Re: [PATCH v4 3/6] iommu: Add return value rules to attach_dev op and APIs
Date: Thu, 22 Sep 2022 01:38:54 -0700 [thread overview]
Message-ID: <YywfHpMG/PYhKqN1@Asurada-Nvidia> (raw)
In-Reply-To: <BN9PR11MB527632E5F21AD412991509458C4E9@BN9PR11MB5276.namprd11.prod.outlook.com>
On Thu, Sep 22, 2022 at 08:17:03AM +0000, Tian, Kevin wrote:
> External email: Use caution opening links or attachments
>
>
> > From: Nicolin Chen <nicolinc@nvidia.com>
> > Sent: Wednesday, September 21, 2022 4:23 PM
> >
> >
> > +/**
> > + * iommu_attach_device - Attach a device to an IOMMU domain
> > + * @domain: IOMMU domain to attach
> > + * @dev: Device that will be attached
> > + *
> > + * Returns 0 on success and error code on failure
> > + *
> > + * Note that EINVAL may be returned as a soft failure if the domain and
> > device
> > + * are incompatible due to some previous configuration of the domain, in
> > which
> > + * case attaching the same device to a different domain may succeed.
>
> Revise a bit:
>
> * Note that EINVAL can be treated as a soft failure, indicating
> * that certain configuration of the domain is incompatible with
> * the device. In this case attaching a different domain to the
> * device may succeed.
Done. And added all your "Reviewed-by" too. Thanks!
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next prev parent reply other threads:[~2022-09-22 8:41 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-21 8:22 [PATCH v4 0/6] Define EINVAL as device/domain incompatibility Nicolin Chen
2022-09-21 8:23 ` [PATCH v4 3/6] iommu: Add return value rules to attach_dev op and APIs Nicolin Chen
2022-09-22 2:02 ` Baolu Lu
2022-09-22 5:09 ` Nicolin Chen
2022-09-22 8:17 ` Tian, Kevin
2022-09-22 8:38 ` Nicolin Chen [this message]
2022-09-21 8:23 ` [PATCH v4 4/6] iommu: Regulate EINVAL in ->attach_dev callback functions Nicolin Chen
2022-09-22 2:14 ` Baolu Lu
2022-09-22 8:18 ` Tian, Kevin
2022-09-21 8:23 ` [PATCH v4 5/6] iommu: Use EINVAL for incompatible device/domain in ->attach_dev Nicolin Chen
2022-09-22 2:16 ` Baolu Lu
2022-09-22 8:19 ` Tian, Kevin
2022-09-21 8:23 ` [PATCH v4 6/6] iommu: Propagate return value in ->attach_dev callback functions Nicolin Chen
2022-09-21 8:55 ` [PATCH v4 0/6] Define EINVAL as device/domain incompatibility Jean-Philippe Brucker
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