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Wysocki" , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 255/281] ACPICA: Events: Add runtime stub support for event APIs Thread-Topic: [PATCH AUTOSEL for 4.9 255/281] ACPICA: Events: Add runtime stub support for event APIs Thread-Index: AQHTv5u+1BVQiBENmU2c7WLeYIPozw== Date: Mon, 19 Mar 2018 16:02:56 +0000 Message-ID: <20180319155742.13731-255-alexander.levin@microsoft.com> References: <20180319155742.13731-1-alexander.levin@microsoft.com> In-Reply-To: <20180319155742.13731-1-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;DM5PR2101MB0728;7:Pf/scM8KA6W7MDxwYD4va30rkvul+6jHhvqKHuguu5YnwWKEtA2VFfrj8QfWAeqTeMzk5tBEDjA37hkj6a/T+LxJoZossNzIP8a1x056ncKQlRX31QBxPq6wJFRaMptjCxBxhOXPTosOiwAQlYJBXFuV2eZJXk5R4eZTF/W4f0VfYzefrvEJzci1SFjCjWn7m2oCNs/th9ZPRf/TbWYlSPb5Yz25FGxjLoT5/coGykSrK7yenqEw89EIU1vgoCaw;20:X92E5oITneHXDDpKjv6jDsT5uHSbPIhvoch7MdxJP6irhD6QQtuwSIMZ6uLmOLbnZUDSPCRvIQD8Xd5griPHsNYVW3jz9sbPZbmXPrBVFfBKrhsc7ZzOBDRb88SVFEEHNJ1irD7tEoVC/B46WLSLuk4ksrV2PadohhFc8tdoAdE= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 3d82afe8-0adf-4c6d-c79a-08d58db33fa3 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0728; x-ms-traffictypediagnostic: DM5PR2101MB0728: 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)(3231221)(944501300)(52105095)(3002001)(93006095)(93001095)(10201501046)(6055026)(61426038)(61427038)(6041310)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123560045)(20161123562045)(20161123564045)(20161123558120)(6072148)(201708071742011);SRVR:DM5PR2101MB0728;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB0728; x-forefront-prvs: 06167FAD59 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(366004)(39380400002)(346002)(376002)(39860400002)(396003)(199004)(189003)(8936002)(99286004)(478600001)(53936002)(107886003)(966005)(110136005)(86612001)(72206003)(97736004)(76176011)(316002)(3280700002)(5250100002)(2501003)(36756003)(2906002)(105586002)(1076002)(86362001)(14454004)(6436002)(54906003)(6512007)(6116002)(6486002)(6306002)(106356001)(3846002)(22452003)(3660700001)(186003)(59450400001)(68736007)(66066001)(25786009)(102836004)(4326008)(10290500003)(26005)(6666003)(305945005)(2950100002)(7736002)(10090500001)(81156014)(81166006)(8676002)(6506007)(5660300001)(2900100001)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB0728;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-microsoft-antispam-message-info: r8pHLkbRfSQxIdnCuQaCgGOsYKUsNYXt50C1Ao3mZjrxv+DDrfhrUjtjZBb2kW7TUNI09ZgM/JayD/dQZlPmIaaV+w4xpmzm77mqUV5noJeBvjbgX9R7Meg31pQXLRpbYFpS29SWVkLP0cUY5mks0MhRZoF5I1SaO9XJBpv791zxyxzhpvTB+VjMujwpNm/I6av32EYp1zyzJxzbO9lFVU63xa2yNCQhRgSQ4VCybPeVFpBXp3/+tR6KNvewIhCW1CZZ0xVwhOmbUXAnKrFO8+dcU/Mno6k4OMo6buYiaydIOq09uqVhrtGwwFiDkfQSIJ+oJ556bZXIZfrpJj87jw== 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: 3d82afe8-0adf-4c6d-c79a-08d58db33fa3 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:02:56.0870 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB0728 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 2.14.1