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Thu, 1 Nov 2018 10:39:32 +0000 Received: from SN6PR15MB2366.namprd15.prod.outlook.com ([fe80::c073:aa0d:f9e3:d795]) by SN6PR15MB2366.namprd15.prod.outlook.com ([fe80::c073:aa0d:f9e3:d795%4]) with mapi id 15.20.1273.028; Thu, 1 Nov 2018 10:39:32 +0000 From: "Shai Fultheim (Shai@ScaleMP.com)" To: Thomas Gleixner , Randy Dunlap CC: Andrew Morton , "broonie@kernel.org" , "mhocko@suse.cz" , Stephen Rothwell , "linux-next@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , LKML , "mm-commits@vger.kernel.org" , Ravikiran Thirumalai , X86 ML , "'Eial Czerwacki (eial@scalemp.com)'" , 'Oren Twaig' Subject: RE: [PATCH] x86/build: Build VSMP support only if selected Thread-Topic: [PATCH] x86/build: Build VSMP support only if selected Thread-Index: AQHUccajbE8IAQT1EUWHnd0mzn9MGaU6s43w Date: Thu, 1 Nov 2018 10:39:32 +0000 Message-ID: References: <20181030230905.xHZmM%akpm@linux-foundation.org> <9e14d183-55a4-8299-7a18-0404e50bf004@infradead.org> In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Shai@ScaleMP.com; 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received-spf: None (protection.outlook.com: ScaleMP.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: oP24rD0oXNhlH5WxxKnhHhSRIXGagkVdbYGryd+Du+0JaL+fsICQheJ+y0duAnFYWE5i3lTjpWVLl9BJXw/aNsBNLqlHjcoFKK7Vqa/TKqs7M5esYjG5Es4v1NrWauff+dUkIHN730A2z24JNdioO/Z2Aw4/Vka5CqgmfGgEihm1NSllBTB07uMX3RVdUkSo1TrBwOkJ7iBZpmme5HD1n9RuJIMDBGpuiK5xkR1GwOklzZXI3LbcU1XBthSNUwZ8UiPA02JK4uijXK8eMDv00vBQ6ahB0z+qQmh8QVn07avqflvXDgWLEv2L1bR/iC78Od2D/+BS6USydQ7DVd/QYctYl/l9gahgyCSR5TKOz/c= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: scalemp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 63aa6aaf-d2d4-4493-a2fd-08d63fe64f79 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Nov 2018 10:39:32.6502 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: a60757ae-8e1a-437b-b61a-75f96e2fad93 X-MS-Exchange-Transport-CrossTenantHeadersStamped: SN6PR15MB2302 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/11/18 11:37, Thomas Gleixner wrote: > VSMP support is built even if CONFIG_X86_VSMP is not set. This leads to a= build > breakage when CONFIG_PCI is disabled as well. >=20 > Build VSMP code only when selected. This patch disables detect_vsmp_box() on systems without CONFIG_X86_VSMP, d= ue to the recent 6da63eb241a05b0e676d68975e793c0521387141. This is significant regression that will affect significant number of deployments. We will reply shortly with an updated patch that fix the dependency on pv_i= rq_ops, and revert to CONFIG_PARAVIRT, with proper protection for CONFIG_PCI.