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

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Message-ID: <20171127114357.GB3710@kroah.com>
Date:   Mon, 27 Nov 2017 12:43:57 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Benjamin Gaignard <benjamin.gaignard@...aro.org>
Cc:     Laura Abbott <labbott@...hat.com>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Arve Hjønnevåg <arve@...roid.com>,
        Riley Andrews <riandrews@...roid.com>,
        Mark Brown <broonie@...nel.org>,
        Dan Carpenter <dan.carpenter@...cle.com>,
        driverdevel <devel@...verdev.osuosl.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        "dri-devel@...ts.freedesktop.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 Mon, Nov 27, 2017 at 11:46:18AM +0100, Benjamin Gaignard wrote:
> 2017-11-09 22:17 GMT+01:00 Laura Abbott <labbott@...hat.com>:
> > On 11/06/2017 07:59 AM, Benjamin Gaignard wrote:
> >>
> >> Instead a getting only one common device "/dev/ion" for
> >> all the heaps this patch allow to create one device
> >> entry ("/dev/ionX") per heap.
> >> Getting an entry per heap could allow to set security rules
> >> per heap and global ones for all heaps.
> >>
> >> Allocation requests will be only allowed if the mask_id
> >> match with device minor.
> >> Query request could be done on any of the devices.
> >>
> >
> > With this patch, sysfs looks like:
> >
> > $ ls /sys/devices/
> > breakpoint ion platform software system virtual
> >
> > From an Ion perspective, you can have
> >
> > Acked-by: Laura Abbott <labbott@...hat.com>
> >
> > Another Ack for the device model stuff would be good but I'll
> > assume deafening silence means nobody hates it.
> 
> Greg, can we get your point of view of this ?

It's 1 day after the merge window has closed, and my todo patch queue
looks like this:
	$ mdfrm -c ~/mail/todo/
	1523 messages in /home/gregkh/mail/todo/

Please give me a chance to catch up...

greg k-h