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Fri, 13 Nov 2020 12:56:45 +0000 Subject: Re: [PATCH] MIPS: reserve the memblock right after the kernel To: Jiaxun Yang , Serge Semin Cc: Thomas Bogendoerfer , linux-mips@vger.kernel.org, Paul Burton , linux-kernel@vger.kernel.org, stable@vger.kernel.org References: <20201106141001.57637-1-alexander.sverdlin@nokia.com> <20201107094028.GA4918@alpha.franken.de> <1d6a424e-944e-7f21-1f30-989fb61018a8@nokia.com> <20201110095503.GA10357@alpha.franken.de> <20201111145240.lok3q5g3pgcvknqr@mobilestation> <4625868b-f845-2f03-c3f2-fc3ff1ccf63d@flygoat.com> From: Alexander Sverdlin Message-ID: <1973ec3a-82a8-2c4a-20d6-45bc7465120b@nokia.com> Date: Fri, 13 Nov 2020 13:56:42 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.12.0 In-Reply-To: <4625868b-f845-2f03-c3f2-fc3ff1ccf63d@flygoat.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 8bit X-Originating-IP: [131.228.32.167] X-ClientProxiedBy: AM3PR05CA0115.eurprd05.prod.outlook.com (2603:10a6:207:2::17) To AM0PR07MB4531.eurprd07.prod.outlook.com (2603:10a6:208:6e::15) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from ulegcpsvhp1.emea.nsn-net.net (131.228.32.167) by AM3PR05CA0115.eurprd05.prod.outlook.com (2603:10a6:207:2::17) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.3541.21 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData: 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 X-OriginatorOrg: nokia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 20ece6cd-03aa-4594-6f15-08d887d3936f X-MS-Exchange-CrossTenant-AuthSource: AM0PR07MB4531.eurprd07.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 13 Nov 2020 12:56:45.5585 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 5d471751-9675-428d-917b-70f44f9630b0 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: RaWXzYDfRp8v8C7YWV91tMMUpZvn45oCavUoQLIBy+hTKTnoGzY4nio3Xwkw//gIK+QiqQ/XaDwFxQJYiECmwuM7sPqwYP79I+0lrnvYB8A= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR07MB6148 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jiaxun, On 13/11/2020 03:30, Jiaxun Yang wrote: >> 2) The check_kernel_sections_mem() method can be removed. But it >> should be done carefully. We at least need to try to find all the >> platforms, which rely on its functionality. > It have been more than 10 years since introducing this this check, but > I believe there must be a reason at the time. could you maybe share the reason you've submitted it with us? > Also currently we have some unmaintained platform and it's impossible > to test on them for us. Do you at least know the list of platforms this patch is required for? -- Best regards, Alexander Sverdlin.