linux-kernel - Re: [PATCH v4 5/6] iova: Add iova_len argument to init_iova

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Message-ID: <20210802150644.GD28735@willie-the-truck>
Date:   Mon, 2 Aug 2021 16:06:44 +0100
From:   Will Deacon <will@...nel.org>
To:     John Garry <john.garry@...wei.com>
Cc:     joro@...tes.org, robin.murphy@....com, baolu.lu@...ux.intel.com,
        iommu@...ts.linux-foundation.org, linuxarm@...wei.com,
        thierry.reding@...il.com, airlied@...ux.ie, daniel@...ll.ch,
        jonathanh@...dia.com, sakari.ailus@...ux.intel.com,
        bingbu.cao@...el.com, tian.shu.qiu@...el.com, mchehab@...nel.org,
        gregkh@...uxfoundation.org, digetx@...il.com, mst@...hat.com,
        jasowang@...hat.com, linux-kernel@...r.kernel.org,
        chenxiang66@...ilicon.com
Subject: Re: [PATCH v4 5/6] iova: Add iova_len argument to init_iova_domain()

On Wed, Jul 14, 2021 at 06:36:42PM +0800, John Garry wrote:
> Add max opt argument to init_iova_domain(), and use it to set the rcaches
> range.
> 
> Also fix up all users to set this value (at 0, meaning use default).

Wrap that in init_iova_domain_defaults() to avoid the mysterious 0?

Will