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Thu, 8 Mar 2018 00:20:42 -0500 Received: from mail-cys01nam02on0131.outbound.protection.outlook.com ([104.47.37.131]:48480 "EHLO NAM02-CY1-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S966463AbeCHFIH (ORCPT ); Thu, 8 Mar 2018 00:08:07 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Hans de Goede , "rtc-linux@googlegroups.com" , "alexandre.belloni@free-electrons.com" , Sasha Levin Subject: [PATCH AUTOSEL for 3.18 09/53] x86: i8259: export legacy_pic symbol Thread-Topic: [PATCH AUTOSEL for 3.18 09/53] x86: i8259: export legacy_pic symbol Thread-Index: AQHTtprAvbeJ4dk7yU2h5aPuqVGKpQ== Date: Thu, 8 Mar 2018 05:03:09 +0000 Message-ID: <20180308050230.8876-9-alexander.levin@microsoft.com> References: <20180308050230.8876-1-alexander.levin@microsoft.com> In-Reply-To: <20180308050230.8876-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;DM5PR2101MB0871;20:rTW2WSAXqh19lR0WCAWMl7TrcsxoJa2q9dZZUGkbEGV1SpcGGjpQjqwmPfl1cKHifoU9xz9Djv6Rw+4H4koW1fb88ggl7NWqaGKKLzG+MLki+xXuaG9I8jG48tTw5FrEbu4pbe0QJBOHfyzQlKdMihFDvx9gtcA8yyRk8odDKBQ= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: d54e53d9-981b-40da-f081-08d584b292cb x-microsoft-antispam: UriScan:(215639381216008);BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0871; 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x-microsoft-antispam-message-info: DtTXI64+wIFprYaIbaO23dNytEFCw6l0QcjPAoyDZKHPxJ5t4XE1MJy5HssHVSpuRg3YbWVocL0fddxVBS0t7FnyGyswJ2dTTRhq+EgtJyGbxsB2FJlKQ0F10lv3VfbLolnbc9MvlVCPJGGv49tGe6BxbWPGkluzwsRSz/ksftkjlwtDDHY1MrbwRROlQVmFXMVTn3RNmsZQuxqydD17hchjZIw5ADDdWSKbfE40PYQa++yr4vdRwaClpBP2QHs4UVrqR4zBpaRsYE6HZ11S/iwFIYsB7ULBK8owT8yRMtU4uVXREC+1TdwhQfNZMQs/xK5SmNivo9vT3qC3HRYC/A== spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: d54e53d9-981b-40da-f081-08d584b292cb X-MS-Exchange-CrossTenant-originalarrivaltime: 08 Mar 2018 05:03:09.8169 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0871 Sender: stable-owner@vger.kernel.org X-Mailing-List: stable@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: From: Hans de Goede [ Upstream commit 7ee06cb2f840a96be46233181ed4557901a74385 ] The classic PC rtc-coms driver has a workaround for broken ACPI device nodes for it which lack an irq resource. This workaround used to unconditionally hardcode the irq to 8 in these cases. This was causing irq conflict problems on systems without a legacy-pic so a recent patch added an if (nr_legacy_irqs()) guard to the workaround to avoid this irq conflict. nr_legacy_irqs() uses the legacy_pic symbol under the hood causing an undefined symbol error if the rtc-cmos code is build as a module. This commit exports the legacy_pic symbol to fix this. Cc: rtc-linux@googlegroups.com Cc: alexandre.belloni@free-electrons.com Signed-off-by: Hans de Goede Signed-off-by: Alexandre Belloni Signed-off-by: Sasha Levin --- arch/x86/kernel/i8259.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/kernel/i8259.c b/arch/x86/kernel/i8259.c index e7cc5370cd2f..6c7e7986939a 100644 --- a/arch/x86/kernel/i8259.c +++ b/arch/x86/kernel/i8259.c @@ -405,6 +405,7 @@ struct legacy_pic default_legacy_pic =3D { }; =20 struct legacy_pic *legacy_pic =3D &default_legacy_pic; +EXPORT_SYMBOL(legacy_pic); =20 static int __init i8259A_init_ops(void) { --=20 2.14.1