Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Thu, 6 Oct 2022 11:19:07 -0700
From:   Ira Weiny <ira.weiny@intel.com>
To:     Sumit Garg <sumit.garg@linaro.org>
CC:     Phil Chang =?utf-8?B?KOW8teS4luWLsyk=?= <Phil.Chang@mediatek.com>,
        "Jens Wiklander" <jens.wiklander@linaro.org>,
        Andrew Morton <akpm@linux-foundation.org>,
        Al Viro <viro@zeniv.linux.org.uk>,
        "Fabio M. De Francesco" <fmdefrancesco@gmail.com>,
        Christoph Hellwig <hch@lst.de>,
        "Linus Torvalds" <torvalds@linux-foundation.org>,
        "op-tee@lists.trustedfirmware.org" <op-tee@lists.trustedfirmware.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: [PATCH 2/4] tee: Remove vmalloc page support
Message-ID: <Yz8cG6OAXvK48vc/@iweiny-desk3>
References: <20221002002326.946620-1-ira.weiny@intel.com>
 <20221002002326.946620-3-ira.weiny@intel.com>
 <CAFA6WYOGT1sJLA4c_B88NaXgxv4fm-idi5QMYvXdXB0acCF3sw@mail.gmail.com>
 <TYZPR03MB65279558CC22F5130B710EA8FB5D9@TYZPR03MB6527.apcprd03.prod.outlook.com>
 <CAFA6WYMT9S1Di6DN_UXc823f0ZTkqerE1PB=oG6wmfx28vEbDg@mail.gmail.com>
Content-Type: text/plain; charset="utf-8"
Content-Disposition: inline
Content-Transfer-Encoding: 8bit
In-Reply-To: <CAFA6WYMT9S1Di6DN_UXc823f0ZTkqerE1PB=oG6wmfx28vEbDg@mail.gmail.com>
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NjVOaTlCbEhQT0dvU20yMWZIM2RIVGQ4OGRDNGtVcDRJTnI3QlZCTGo5dEpR?=
 =?utf-8?B?Ty9zSWFKT1dncGZ4TWlLcDFxREI1cGQ3RGpKVnBoK0dMcGxrbG84RWVIeEQz?=
 =?utf-8?B?OXJRRkZVcFhUbmRhUERWdUhwLzFsMEo4VG5GNEp2K0ZEbGM4YzJMdzJ4WXRp?=
 =?utf-8?B?bGc0MUVFRmVxZ29pVTVoM05QVFVsRXM3SnJVMXBaUWlkUTJvYjFUU2dldW5M?=
 =?utf-8?B?L3hGaEF6N085b3BuSnBBcHdqK0FRY0FBOUpPNUc5d29uMmlpU2R2THhNUElV?=
 =?utf-8?B?K3lSTWR3dkNpM1Q4SjRKT3R4NktwN1krTVhYa2hoVnhpMHFOakYvb1I1Wjlz?=
 =?utf-8?B?MkNpbTA2Y3VOeFhEbEZUR3BwQ0F3NFZsdkNvVG1XYWJOZzZoRUl4c0VxTjhR?=
 =?utf-8?B?aVBXR1dMOW5FQm9UQTlXL0NuWDJCZmhQalRYbkV3cmFuWjhwUmhHTkw5YnVX?=
 =?utf-8?B?R0tnakZib1FuT0lSeFVIdTNBOWJnd3ZLOHZkRzZFd0FrZ2hJcS9rY1BtRFV5?=
 =?utf-8?B?dkhwZTVJTmZ2Tk5YajFCOXRtckFRQU5uYzUvM25wUTRqUmg5VDEvNE41a3Ew?=
 =?utf-8?B?WFlJZGpIZ3lqU1REcXJ5ODRlMVN6dFVITHRTVGRQMlAxQmVReHhEQk9TZkFl?=
 =?utf-8?B?YWtkT2NTSlRmS1A1ZXI5S0NpTVNTdTJDM1JXYktmSlo3dHFJcy9RN0kwcnlu?=
 =?utf-8?B?MmxtVmxjOFk4UVZwSmJXdWxRLzFBTUF4cnFJNklMYVhXMWRLaU1SZUNXbFIw?=
 =?utf-8?B?T2VaeXBHcVJqNVVCUm5TQU9sVVZ5cDhKRTE4YVBEU0Q2N3E4NWtMY054ZnR6?=
 =?utf-8?B?eXZPUlMxbHdVUVVnN3hDc3l3d1U3QjNQYTQwckFJSElCRjdHV0ttdy8ydDk1?=
 =?utf-8?B?QlRnOHpVMERZVk9pc3pFT1pHSEx2WEFRaVc2R0xUelBnNXIxUTBzNCtmM2kx?=
 =?utf-8?B?cytmdXdjT2YxM1RtVjRma1RBbVJaMk55QWxudFM5V1AzRnNoaUc3UzZob00y?=
 =?utf-8?B?emNRNmtBSnZJZ2xnS1p1SWdWMzhxaU15b3o4V1ovY2pzVHk5WTZjUHJHeHZ3?=
 =?utf-8?B?YWNHWTdFVCtUTTB2STNYWXF5TG1lWUhqbGcrV2lYSHZ4UjRjOVZNVGNpeTd4?=
 =?utf-8?B?K2NSbERZVjQyRFJsQ2JDOUFnUE5vU0lTbHhKMmVhSWoyL3pVZ2xtRWtyY1Jq?=
 =?utf-8?B?eW5XSWZTVTlFWDZvckxQZUlvenZDYk9mWkNJZi8rc2JOVWhCanVVcUs1QXJK?=
 =?utf-8?B?VnBCcjdTNEgwcitObVVVd3VTRGQ5R0tBZUZJVTlNYlJFQ3hucHJzbURqNFRI?=
 =?utf-8?B?U2g4aUY1eEkrdGNWTGlTQktFTWx0QytYeGs2NmczMUxldmdCbVo3bDhOQ2cv?=
 =?utf-8?B?YkpiQ0VqL0FCdkFoeDhHczRjUlpqd1hUSWRMQXV1ZXpsbzNzMmtEWkhFeDh4?=
 =?utf-8?B?RXFSRFN5b3pJckhaVEFPRXBxa2pKU2lna3NNM1JmTytnbDhma2NDS3BGbnVq?=
 =?utf-8?B?WHFQWHk3OFlPcTlxTjBmM3gxdm1oMlpwY09lZ1oxZGdxa0JncG9SRitaS0ha?=
 =?utf-8?B?dE1aZHgycGJXVVBTUlltR2V0RGR6R2JBN1UycVRxQ3VEQU9INlNHUWsxWUEy?=
 =?utf-8?B?MWFHTUJFQWJGbC91QVpUczc4a2tpd1lqVXNPdWkzQmFWY2JPclByT25hUnpq?=
 =?utf-8?B?RWZLcTNuR1o0UThwdlZ4SlM1V0dVOFZjYndJQjAxOG5tSllGZW9BWVR5TjJP?=
 =?utf-8?B?elZhN3lMZmEzR2VjMHhMT0NwaFNUYUZmL3dxQnJwRnRseE52ZlZvWElGYjRn?=
 =?utf-8?B?b2pEQjd1TWNnUjEzblRva3VLRTZrNTM1em40bjhXSHVXQlVGcmdJaE9INk9y?=
 =?utf-8?B?bG5WZGVlWFBSSW9HbzlMRzRGU2xTaWNESnF0K3lvaDhuSEpKSnI0bFRHKzBL?=
 =?utf-8?B?QVJBc1NSNDBKbmNUang3Mk5wSlRUcFNQejloeTZZS0hSQ2dhU0lnKytCZEtY?=
 =?utf-8?B?T3RQelFqbFJGZWZXZnFZMmhvZTlkMTA4am9kNnJNRnNaRXZkWm1BNDQwOUdh?=
 =?utf-8?B?ZDFpbFVLcnRqT3U2SFJ1alN6YkRuL1AwNG84dWxpQUhtYm44T0JTbGFmZC9o?=
 =?utf-8?Q?DT5qrAJnqPvcaRRm7lIe5rifw?=
X-MS-Exchange-CrossTenant-Network-Message-Id: d1db75b8-f40f-4867-dfab-08daa7c7452c
X-MS-Exchange-CrossTenant-AuthSource: SA1PR11MB6733.namprd11.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Oct 2022 18:19:12.8807
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 46c98d88-e344-4ed4-8496-4ed7712e255d
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: NGfp0J8OBhYKtKw79vMZtSkP/YdpY5NT63yQmlV7mNCIUnUGcrEdqdoZdDWhC7W/STYBIMG82owedz3IpMWnyQ==
X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN7PR11MB6727
X-OriginatorOrg: intel.com
X-Spam-Status: No, score=-7.1 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_HI,
        RCVD_IN_MSPIKE_H3,RCVD_IN_MSPIKE_WL,SPF_HELO_NONE,SPF_NONE
        autolearn=ham autolearn_force=no version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Thu, Oct 06, 2022 at 11:53:55AM +0530, Sumit Garg wrote:
> Hi Phil,
> 
> Please don't top-post in the OSS mailing list.
> 
> On Wed, 5 Oct 2022 at 08:59, Phil Chang (張世勳) <Phil.Chang@mediatek.com> wrote:
> >
> > Hi Sumit
> >
> > Thanks for mentioning that, in fact, our product is low memory devices, and continuous pages are extremely valuable.
> > Although our driver is not upstream yet but highly dependent on tee shm vmalloc support,
> 
> Sorry but you need to get your driver mainline in order to support
> vmalloc interface. As otherwise it's a maintenance nightmare to
> support interfaces in the mainline for out-of-tree drivers.

I agree.  It sounds like this driver is not going to be submitted any time
soon.  So I'll respin this series as is.  But I do have a couple of other
things to deal with first.  So if I'm wrong let me know soon.

Thanks,
Ira