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Date:   Tue, 5 Dec 2017 15:01:42 -0800
From:   Laura Abbott <>
To:     Greg KH <>,
        Benjamin Gaignard <>
Cc:     Sumit Semwal <>,
        Arve Hjønnevåg <>,
        Riley Andrews <>,
        Mark Brown <>,
        Dan Carpenter <>,
        driverdevel <>,
        Linux Kernel Mailing List <>,
        "" <>,
Subject: Re: [PATCH v6 2/2] staging: ion: create one device entry per heap

On 12/02/2017 07:53 AM, Greg KH wrote:
>> This is one of the item in the TODO list before been able to unstage ION
>> which is my real need.
> Why does it matter where in the tree this code is?  Don't go adding new
> things to it that are not needed.  Who needs this?  What userspace code
> wants this type of multiple ion devices?

Requirements came in from several places to split /dev/ion -> /dev/ion0
and /dev/ion1 so that security policy (i.e. selinux) could be used to
protect access to certain heaps. I wanted the ABI to be settled before
trying to move out of staging, hence the line in the TODO list about
doing the split.

> thanks,
> greg k-h


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