linux-kernel - Re: [PATCH v6 2/2] staging: ion: create one device entry per heap

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Message-ID: <20171128180016.GA10169@kroah.com>
Date:   Tue, 28 Nov 2017 19:00:16 +0100
From:   Greg KH <gregkh@...uxfoundation.org>
To:     Mark Brown <broonie@...nel.org>
Cc:     Benjamin Gaignard <benjamin.gaignard@...aro.org>,
        labbott@...hat.com, sumit.semwal@...aro.org, arve@...roid.com,
        riandrews@...roid.com, dan.carpenter@...cle.com,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, linux-api@...r.kernel.org
Subject: Re: [PATCH v6 2/2] staging: ion: create one device entry per heap

On Tue, Nov 28, 2017 at 05:37:53PM +0000, Mark Brown wrote:
> On Tue, Nov 28, 2017 at 06:28:38PM +0100, Greg KH wrote:
> > On Tue, Nov 28, 2017 at 05:12:23PM +0000, Mark Brown wrote:
> 
> > > I think it's reasonable to ask for userspace, I'm querying why it needs
> > > to specifically be Android.
> 
> > Does anyone other than Android use this interface?
> 
> There's plenty of other userspaces that have the same requirements for
> allocation for applications like video capture, I believe some of them
> have actually moved to ION already and they're certainly where some of
> the requirements here are coming from.

Then the Kconfig option should start to describe some of this :)