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[74.109.246.95]) by smtp.gmail.com with ESMTPSA id i7sm1774133qkb.131.2020.08.27.06.31.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 27 Aug 2020 06:31:28 -0700 (PDT) Subject: Re: [PATCH] staging: ion: remove from the tree To: Greg Kroah-Hartman , 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?= , =?UTF-8?Q?Christian_K=c3=b6nig?= , Christian Brauner , Christoph Hellwig , Hridya Valsaraju , Joel Fernandes , Martijn Coenen , Shuah Khan , Suren Baghdasaryan , Todd Kjos , 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 Message-ID: <3d8de519-65b3-123b-8ace-e820982884e0@labbott.name> Date: Thu, 27 Aug 2020 09:31:27 -0400 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.9.0 MIME-Version: 1.0 In-Reply-To: <20200827123627.538189-1-gregkh@linuxfoundation.org> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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" > Cc: "Christian König" > Cc: Christian Brauner > Cc: Christoph Hellwig > Cc: Hridya Valsaraju > Cc: Joel Fernandes > Cc: John Stultz > Cc: Laura Abbott > Cc: Martijn Coenen > Cc: Shuah Khan > Cc: Sumit Semwal > Cc: Suren Baghdasaryan > Cc: Todd Kjos > Cc: devel@driverdev.osuosl.org > Cc: dri-devel@lists.freedesktop.org > Cc: linaro-mm-sig@lists.linaro.org > Signed-off-by: Greg Kroah-Hartman We discussed this at the Android MC on Monday and the plan was to remove it after the next LTS release.