linux-kernel - Re: [PATCH v4 05/22] iommu: introduce iommu invalidate API function

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Message-ID: <20180507084107.2d1a9421@jacob-builder>
Date:   Mon, 7 May 2018 08:41:07 -0700
From:   Jacob Pan <jacob.jun.pan@...ux.intel.com>
To:     Jerry Snitselaar <jsnitsel@...hat.com>
Cc:     iommu@...ts.linux-foundation.org,
        LKML <linux-kernel@...r.kernel.org>,
        Joerg Roedel <joro@...tes.org>,
        David Woodhouse <dwmw2@...radead.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Alex Williamson <alex.williamson@...hat.com>,
        Jean-Philippe Brucker <jean-philippe.brucker@....com>,
        "Liu, Yi L" <yi.l.liu@...ux.intel.com>,
        Raj Ashok <ashok.raj@...el.com>,
        Rafael Wysocki <rafael.j.wysocki@...el.com>,
        Liu@...l.linuxfoundation.org, Jean Delvare <khali@...ux-fr.org>,
        jacob.jun.pan@...ux.intel.com
Subject: Re: [PATCH v4 05/22] iommu: introduce iommu invalidate API function

On Sat, 5 May 2018 15:19:43 -0700
Jerry Snitselaar <jsnitsel@...hat.com> wrote:

> >
> >+static inline int iommu_sva_invalidate(struct iommu_domain *domain,
> >+		struct device *dev, struct tlb_invalidate_info
> >*inv_info) +{
> >+	return -EINVAL;
> >+}
> >+  
> 
> Would -ENODEV make more sense here?
> 
yes, make sense. thanks!
>  [...]