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Subject: Re: [PATCH] staging: ion: remove from the tree
To:     Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        sumit.semwal@linaro.org, john.stultz@linaro.org
Cc:     linux-kernel@vger.kernel.org, kernel-team@android.com,
        =?UTF-8?Q?Arve_Hj=c3=b8nnev=c3=a5g?= <arve@android.com>,
        =?UTF-8?Q?Christian_K=c3=b6nig?= <christian.koenig@amd.com>,
        Christian Brauner <christian@brauner.io>,
        Christoph Hellwig <hch@infradead.org>,
        Hridya Valsaraju <hridya@google.com>,
        Joel Fernandes <joel@joelfernandes.org>,
        Martijn Coenen <maco@android.com>,
        Shuah Khan <shuah@kernel.org>,
        Suren Baghdasaryan <surenb@google.com>,
        Todd Kjos <tkjos@android.com>, devel@driverdev.osuosl.org,
        dri-devel@lists.freedesktop.org, linaro-mm-sig@lists.linaro.org
References: <20200827123627.538189-1-gregkh@linuxfoundation.org>
From:   Laura Abbott <laura@labbott.name>
Message-ID: <3d8de519-65b3-123b-8ace-e820982884e0@labbott.name>
Date:   Thu, 27 Aug 2020 09:31:27 -0400
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On 8/27/20 8:36 AM, Greg Kroah-Hartman wrote:
> The ION android code has long been marked to be removed, now that we
> dma-buf support merged into the real part of the kernel.
> 
> It was thought that we could wait to remove the ion kernel at a later
> time, but as the out-of-tree Android fork of the ion code has diverged
> quite a bit, and any Android device using the ion interface uses that
> forked version and not this in-tree version, the in-tree copy of the
> code is abandonded and not used by anyone.
> 
> Combine this abandoned codebase with the need to make changes to it in
> order to keep the kernel building properly, which then causes merge
> issues when merging those changes into the out-of-tree Android code, and
> you end up with two different groups of people (the in-kernel-tree
> developers, and the Android kernel developers) who are both annoyed at
> the current situation.  Because of this problem, just drop the in-kernel
> copy of the ion code now, as it's not used, and is only causing problems
> for everyone involved.
> 
> Cc: "Arve Hjønnevåg" <arve@android.com>
> Cc: "Christian König" <christian.koenig@amd.com>
> Cc: Christian Brauner <christian@brauner.io>
> Cc: Christoph Hellwig <hch@infradead.org>
> Cc: Hridya Valsaraju <hridya@google.com>
> Cc: Joel Fernandes <joel@joelfernandes.org>
> Cc: John Stultz <john.stultz@linaro.org>
> Cc: Laura Abbott <laura@labbott.name>
> Cc: Martijn Coenen <maco@android.com>
> Cc: Shuah Khan <shuah@kernel.org>
> Cc: Sumit Semwal <sumit.semwal@linaro.org>
> Cc: Suren Baghdasaryan <surenb@google.com>
> Cc: Todd Kjos <tkjos@android.com>
> Cc: devel@driverdev.osuosl.org
> Cc: dri-devel@lists.freedesktop.org
> Cc: linaro-mm-sig@lists.linaro.org
> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

We discussed this at the Android MC on Monday and the plan was to
remove it after the next LTS release.