linux-kernel - Re: [PATCH 1/3] iommu/vt-d: Refactor find

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Message-ID: <20190801061021.GA14955@lst.de>
Date:   Thu, 1 Aug 2019 08:10:21 +0200
From:   Christoph Hellwig <hch@....de>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     David Woodhouse <dwmw2@...radead.org>,
        Joerg Roedel <joro@...tes.org>, ashok.raj@...el.com,
        jacob.jun.pan@...el.com, kevin.tian@...el.com,
        Christoph Hellwig <hch@....de>,
        Robin Murphy <robin.murphy@....com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>
Subject: Re: [PATCH 1/3] iommu/vt-d: Refactor find_domain() helper

On Thu, Aug 01, 2019 at 02:01:54PM +0800, Lu Baolu wrote:
> +	/* No lock here, assumes no domain exit in normal case */

s/exit/exists/ ?

> +	info = dev->archdata.iommu;
> +	if (likely(info))
> +		return info->domain;

But then again the likely would be odd.