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;
From:   Christophe Leroy <christophe.leroy@csgroup.eu>
To:     Baoquan He <bhe@redhat.com>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
CC:     "linux-mm@kvack.org" <linux-mm@kvack.org>,
        "akpm@linux-foundation.org" <akpm@linux-foundation.org>,
        "hch@infradead.org" <hch@infradead.org>,
        "agordeev@linux.ibm.com" <agordeev@linux.ibm.com>,
        "wangkefeng.wang@huawei.com" <wangkefeng.wang@huawei.com>,
        "schnelle@linux.ibm.com" <schnelle@linux.ibm.com>,
        "David.Laight@ACULAB.COM" <David.Laight@ACULAB.COM>,
        "shorne@gmail.com" <shorne@gmail.com>,
        Brian Cain <bcain@quicinc.com>,
        Mark Brown <broonie@kernel.org>,
        Linus Walleij <linus.walleij@linaro.org>,
        "linux-hexagon@vger.kernel.org" <linux-hexagon@vger.kernel.org>
Subject: Re: [PATCH v3 01/11] hexagon: mm: Convert to GENERIC_IOREMAP
Thread-Topic: [PATCH v3 01/11] hexagon: mm: Convert to GENERIC_IOREMAP
Thread-Index: AQHY28pRwB5uoa5m+UyEzf+Gt+dL3a4GQ96A
Date:   Sun, 9 Oct 2022 16:39:43 +0000
Message-ID: <83f292b8-0639-56b2-6dac-0475c34f623c@csgroup.eu>
References: <20221009103114.149036-1-bhe@redhat.com>
 <20221009103114.149036-2-bhe@redhat.com>
In-Reply-To: <20221009103114.149036-2-bhe@redhat.com>
Accept-Language: fr-FR, en-US
Content-Language: en-US
user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.3.1
x-ms-exchange-antispam-messagedata-chunkcount: 1
x-ms-exchange-antispam-messagedata-0: =?utf-8?B?TCtWSS8xV3FNbWxZc2J5SXNKd1QvK0dpL2JWMnhQYys1ZVdLNExkR1Nub01a?=
 =?utf-8?B?T3ovcjJLRWsxVW5qVWFycC9JYVh3WWh3U2wwVUQyT0xoc2R0K24ySzJFc0VX?=
 =?utf-8?B?TW12dGI4SVpCOTM4RnVLWWNXdkRIVnJEVHFsZ0xocG5Tei8zSnNoaUtvRDVi?=
 =?utf-8?B?YmxMT0VuRmZwdDkrVktGVVpxTkdyZ093VVZjTEJjRnFtN0I5a2RqdERpK3Jt?=
 =?utf-8?B?NndDc0pzS0ZsM0x2Q0xTTUo4eDlONS9KZEJtb0NyUzdsUzRTZ3pNVjgvZXow?=
 =?utf-8?B?MUlCNTFjb2lWTGplOFlqdHlWK1ppL20wMEk2d3NCWlVEZmJOYTROUk9jK3NP?=
 =?utf-8?B?cVAyYkk2enRqTmJXUHpvb0JPNTRjd21GdjdLMitCVFB1SW85dTNsTkJDSXAw?=
 =?utf-8?B?WEtVUUwxSDhvbC9XczBodTFLUWpTZzViaEdoQURnV09ueDNQWjFRQzJPWHFH?=
 =?utf-8?B?Z1dBWlAxME5zbWh6NXF6T0NDeWxpbkIvdzZGekY3cGJaQy9IbUpwU1pJRHdZ?=
 =?utf-8?B?K2ZVbkhaUVpxa0tQV2JyL1ZKWlNoNFdCY2Z4YkxHZDhPUC9QWGZQeWorTTQ5?=
 =?utf-8?B?S1VSR0dwSTAxV0l3bDVXOGEzOEN1bzcvQnl4K1VySzkwS09SaDZabU9GYlRv?=
 =?utf-8?B?YS8rSXZkL295R1RGRDBGdUMzWmYvSkM1ZEpQUGE1T2RUNllNWmNLZFdsbmZF?=
 =?utf-8?B?Q09sRFA1dVpMQ25KNm5vV1pUeDJSM1h2VHMrekxjU0szQUM3K2JyUDZwMGNE?=
 =?utf-8?B?cjNkaFlsUVArR2tGOXZrL3krTzRURkFXWEVPaCtOcUJaczQ5RUxYOUFDZmFS?=
 =?utf-8?B?MDJUY3o3UUtrdWFLMEZpQ2hPUWdNWlFVSEpTVytiRXlxL0UrRHVrN0hCSENa?=
 =?utf-8?B?aXBzZVdYSTRWbVhNL1dOODdTUHovUmdDZDlTS0lDUWF1eEJxRWhKdldORWRi?=
 =?utf-8?B?R091Mi8rTXZpMHdXYkgveXpoY3psb2FlU3BHK2dlMGVOdXR4VG1TemtVMzhC?=
 =?utf-8?B?TWU2K3dZcnlwM08yUkZBZkhQQndHalJqcEhKOU5seU1YT0hycTU1S0tNcmR6?=
 =?utf-8?B?WEhycmlLU1BRdXdhVHVqcmN1RlpZa1dzS1dTZ3ZFTUxMdkFuRVVWTG5UalNR?=
 =?utf-8?B?UDZYa1lSWnhsMmNhYkV0NXVSRDJ3eEF4RVZScXc1NnRPa1ZYcFNCZWx0ZmRr?=
 =?utf-8?B?NmV4SDdhMXlGdnBoVkpaQ1IxWmcvVjJ6d3cwR2h5UnVYdWxkdW9LcDRuS3lN?=
 =?utf-8?B?aVdJNGZzcG1Nelg1aGhGZmIvSWxGMTE1NHZZdVZtNjd0YTJDR1pOOVlLTEJp?=
 =?utf-8?B?YncwUk52anhHL0JFL3hyajlKajJsRlNDWUduWmUxRGZUdlBOOXYzVi83Q2ti?=
 =?utf-8?B?cnMybEJHRkJRbHE1aG9IakhPZGp4eG9ZWEJTcFpLeTZoYlV3Z0FVRnFiQU56?=
 =?utf-8?B?VHprdFIyR3ZRQnRPckFYSEdKS3Q2WG5BMmdONkdwMjlPUHVjWW9BVEFDbnFu?=
 =?utf-8?B?SkhSNDAxZzBCQUJTZTQ1L3h0NGszSUgyK1B1aE1JVmREMUhpNmtxS1hKM0xp?=
 =?utf-8?B?dENJSjBFaUpBS1VDZTlFcFk5bGtMaHdKMU85RjkwQXhnMjFaVTRMZkhLZDRD?=
 =?utf-8?B?bnc4bldhRHlVRWtpeDVaM1dEWnl2dEdIdmE4K1BjVkpoN3AvY3VycC9LMTN1?=
 =?utf-8?B?bGJhUlpZZVVGcFJQOUVuOG5LZXl6MVJ1S3ZDNi9TWE1pcjk4akZYUUJJeVFE?=
 =?utf-8?B?aTJ0aG9GNXU1V1lQV3NSUXNlZkRJYzAvUm5PZ0N5YWJWWU5KMFhUZ3JTa2d2?=
 =?utf-8?B?YTN1L0IrZkJwbTBjdWExazRMR045emZwbHp2U2p3cUJueWdZVFhoOXRhdUNx?=
 =?utf-8?B?VWN2ZFFFcVdKczZmUll6WHdtTm9QeGQ0cjZnZFdLL1FVUkpsUUs5ZS9KZHgx?=
 =?utf-8?B?dndiVmF6QzBRbThBT2lnVjlYejg5RzNXMWV1V09QVmtYb2FJZExwRjg5aVVZ?=
 =?utf-8?B?YS9tZFVkanJNVnc4SUw4SGVpRWZjLzVBRVdZdDJYcmU3TFlZN29TM3BpZS9i?=
 =?utf-8?B?K3kyOWlhTWtRWlJjVkRrd0hzYXcwWGQ3bVNzNXpRbUZWMklBRFV2RVl5NWlo?=
 =?utf-8?B?ZXZYSm1WdHlMUGEreW5CbGpSdzFxOHExSFYwUDRGN2tjQzIvdmNQVHMwdnFR?=
 =?utf-8?Q?9OXx4Qko5nlt1/9l9IxjRdo=3D?=
Content-Type: text/plain; charset="utf-8"
Content-ID: <C88727DFED983B43AC405240C8B7CBBB@FRAP264.PROD.OUTLOOK.COM>
Content-Transfer-Encoding: base64
MIME-Version: 1.0
X-OriginatorOrg: csgroup.eu
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-AuthSource: MRZP264MB2988.FRAP264.PROD.OUTLOOK.COM
X-MS-Exchange-CrossTenant-Network-Message-Id: 53edb9ee-0ef3-4240-5db7-08daaa14de4e
X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Oct 2022 16:39:43.1623
 (UTC)
X-MS-Exchange-CrossTenant-fromentityheader: Hosted
X-MS-Exchange-CrossTenant-id: 9914def7-b676-4fda-8815-5d49fb3b45c8
X-MS-Exchange-CrossTenant-mailboxtype: HOSTED
X-MS-Exchange-CrossTenant-userprincipalname: QwbeMzG5mysMgcMvgW8RYmzVLVwFu+YxvQ/tdOM7GR5Yo8pneJSFg5KvJoCvqey04x1QI38B2yHPObqY/XQ6w0K7PGxF6C7q/sFoCxp4gck=
X-MS-Exchange-Transport-CrossTenantHeadersStamped: PR0P264MB2121
X-Spam-Status: No, score=-6.0 required=5.0 tests=BAYES_00,DKIM_SIGNED,
        DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,NICE_REPLY_A,SPF_HELO_PASS,
        SPF_PASS 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
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