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Wysocki" , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 041/293] ACPICA: Events: Add runtime stub support for event APIs Thread-Topic: [PATCH AUTOSEL for 4.9 041/293] ACPICA: Events: Add runtime stub support for event APIs Thread-Index: AQHTz5j34/OQG2ztPEyKKT+NB5iipw== Date: Mon, 9 Apr 2018 00:23:21 +0000 Message-ID: <20180409002239.163177-41-alexander.levin@microsoft.com> References: <20180409002239.163177-1-alexander.levin@microsoft.com> In-Reply-To: <20180409002239.163177-1-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;DM5PR2101MB1031;7:fH43lYXSsqTZyBtecEVgUQJ+fh0kSH8rgM0GmWJ1cn+yfA7RuInZjEW74QEat/r0hwlKxNfT8BZoyph+uNwWTydTTNW+5DiiG+SHj8Dp/8MPsCafqZEr0otw0/WXMGprgbEz3b2eyfex5jUf3GxDMljQyLsVaqkqmeUaBVMS8mBV6wutgUxJeuQsPX9xsehyGZV3QshM2yfqfKEDUOwokp4qwwtlX2yfxRhvEuznA8BPveZuBlJU1MKl2iMwWRAu;20:Xa7tg6svEXFpHs+3XIx8Troq+Dl35OePteefU/qiRoxX64qiKf84JOKZOANdTxvcY0Pt1PFRTcT6VoIJUxPxc9XzWPEc5b5n5CqqUNTwZc3hX1PXiCuxerWWof0uwJJ48jyd5iqipHGiCcSXylBEj1OqZfjJppLoyETADrW6hKg= x-ms-office365-filtering-ht: Tenant X-MS-Office365-Filtering-Correlation-Id: 9cc78653-5a0d-416f-42eb-08d59db0aa26 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB1031; x-ms-traffictypediagnostic: DM5PR2101MB1031: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-prvs: x-exchange-antispam-report-test: UriScan:(28532068793085)(89211679590171)(166708455590820)(85827821059158)(228905959029699); x-exchange-antispam-report-cfa-test: BCL:0;PCL:0;RULEID:(8211001083)(61425038)(6040522)(2401047)(5005006)(8121501046)(93006095)(93001095)(3231221)(944501327)(52105095)(3002001)(10201501046)(6055026)(61426038)(61427038)(6041310)(20161123558120)(20161123562045)(20161123560045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123564045)(6072148)(201708071742011);SRVR:DM5PR2101MB1031;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB1031; x-forefront-prvs: 0637FCE711 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(396003)(376002)(366004)(39380400002)(346002)(39860400002)(189003)(199004)(2900100001)(10290500003)(99286004)(76176011)(14454004)(966005)(7736002)(11346002)(26005)(86612001)(72206003)(478600001)(36756003)(106356001)(66066001)(2616005)(186003)(22452003)(86362001)(68736007)(305945005)(54906003)(102836004)(486006)(59450400001)(110136005)(316002)(6506007)(446003)(107886003)(53936002)(4326008)(105586002)(6306002)(6436002)(6486002)(476003)(6512007)(5660300001)(5250100002)(25786009)(3846002)(6116002)(1076002)(97736004)(3280700002)(2501003)(2906002)(81156014)(8676002)(10090500001)(81166006)(8936002)(3660700001)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB1031;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; x-microsoft-antispam-message-info: 05XWZX1fhnKTSNlEgJizIaw12Uzd6f5+iednOCRE1ccRywU0SsWRwpE/FCRa/J/sP6cdRbwQu2zulEslOghiuyJfHU4x8y5gNx0M5P2hZEtC++QLKUFjAR/alhO5bC+rcDYunBGi8vx9l2+xvyJTYtpdCDQQ8s2RTsIhvv/0vj4bKFusrXyAnvDXw1qGuV/d4LGRrXNloPmbuxqF5K6S43yuGH4RzoPByB6qhzwx976acW0c6Ja4ULgBv4EbM713mFsGEzFajyUchEvNBjlkAmohmEyXH8QdiwlUam+Pkv6aXu04BRjra4YZGayYl9DJh26Ac2oAG5a/M2l+9hit76a+XgHgY90FSDfII+HVUb866Y0MP8sgM2pZL+ze2B4yF5ExMf3edmo59+uRd5kioAkjZruIosyL1SdLXVQAw2A= 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: 9cc78653-5a0d-416f-42eb-08d59db0aa26 X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:23:21.9248 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1031 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: Lv Zheng [ Upstream commit 861ba6351c520328e94a78c923b415faa9116287 ] ACPICA commit 99bc3beca92c6574ea1d69de42e54f872e6373ce It is reported that on Linux, RTC driver complains wrong errors on hardware reduced platform: [ 4.085420] ACPI Warning: Could not enable fixed event - real_time_clo= ck (4) (20160422/evxface-654) This patch fixes this by correctly adding runtime reduced hardware check. Reported by Chandan Tagore, fixed by Lv Zheng. Link: https://github.com/acpica/acpica/commit/99bc3bec Tested-by: Chandan Tagore Signed-off-by: Lv Zheng Signed-off-by: Bob Moore Signed-off-by: Rafael J. Wysocki Signed-off-by: Sasha Levin --- drivers/acpi/acpica/evxfevnt.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/drivers/acpi/acpica/evxfevnt.c b/drivers/acpi/acpica/evxfevnt.= c index 9179e9abe3db..35a2d9ea0654 100644 --- a/drivers/acpi/acpica/evxfevnt.c +++ b/drivers/acpi/acpica/evxfevnt.c @@ -180,6 +180,12 @@ acpi_status acpi_enable_event(u32 event, u32 flags) =20 ACPI_FUNCTION_TRACE(acpi_enable_event); =20 + /* If Hardware Reduced flag is set, there are no fixed events */ + + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_OK); + } + /* Decode the Fixed Event */ =20 if (event > ACPI_EVENT_MAX) { @@ -237,6 +243,12 @@ acpi_status acpi_disable_event(u32 event, u32 flags) =20 ACPI_FUNCTION_TRACE(acpi_disable_event); =20 + /* If Hardware Reduced flag is set, there are no fixed events */ + + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_OK); + } + /* Decode the Fixed Event */ =20 if (event > ACPI_EVENT_MAX) { @@ -290,6 +302,12 @@ acpi_status acpi_clear_event(u32 event) =20 ACPI_FUNCTION_TRACE(acpi_clear_event); =20 + /* If Hardware Reduced flag is set, there are no fixed events */ + + if (acpi_gbl_reduced_hardware) { + return_ACPI_STATUS(AE_OK); + } + /* Decode the Fixed Event */ =20 if (event > ACPI_EVENT_MAX) { --=20 2.15.1