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Wysocki" , Sasha Levin Subject: [PATCH AUTOSEL for 3.18 089/102] ACPICA: Events: Add runtime stub support for event APIs Thread-Topic: [PATCH AUTOSEL for 3.18 089/102] ACPICA: Events: Add runtime stub support for event APIs Thread-Index: AQHTv50yBPwTs1RIFkScLys/rcKK3g== Date: Mon, 19 Mar 2018 16:13:20 +0000 Message-ID: <20180319161117.17833-89-alexander.levin@microsoft.com> References: <20180319161117.17833-1-alexander.levin@microsoft.com> In-Reply-To: <20180319161117.17833-1-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;DM5PR2101MB1112;7:NTo78xan/usJRm3B6rC7176Gbd0a58UoVJONye9yg6gR1JbLwbd2G73xg5YZXO0IozvjNXNjRgli2papjIq74JicEIdCMDoIL52SRGQCVNvhJ/tkS+8S4NL5MASuBx+rhPy0iYba6OA06Ld5lDwt9MngjkWWR/HXb1OVU12Mjd7LeeH1naKpRAz80f/vrW9BRzD97bT4sMuYToMNTiyOhkkv9CysquDz0Jsdrw6lZb30meQSuEC+bnRVF9nj9NHp;20:bO2mfykWUbmZM27sdG0PSq1MvcL7ROnLQ5Y2OyyUFETX0WQDnnxdHjSgGBTHYUDDzggh0ziqUETyuWEK2CXKEZPMdp3HD8N7UcatTHiCAWQzGk5M4rDRRvEecDs9gOiRVP300iwyyl0fMOfQp1QvKSFY22hInrH0CMlbef9OFUE= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 8f8991fd-9564-4b39-68d8-08d58db47636 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB1112; x-ms-traffictypediagnostic: DM5PR2101MB1112: 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:DM5PR2101MB1112;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB1112; x-forefront-prvs: 06167FAD59 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(346002)(366004)(39860400002)(376002)(39380400002)(396003)(199004)(189003)(53936002)(26005)(14454004)(36756003)(2501003)(186003)(305945005)(86362001)(107886003)(316002)(7736002)(6506007)(110136005)(5250100002)(4326008)(2900100001)(25786009)(102836004)(105586002)(72206003)(10090500001)(54906003)(2950100002)(478600001)(99286004)(106356001)(6436002)(3280700002)(966005)(3660700001)(10290500003)(66066001)(2906002)(6486002)(6306002)(76176011)(81166006)(81156014)(8676002)(68736007)(8936002)(5660300001)(6666003)(22452003)(86612001)(6116002)(3846002)(1076002)(97736004)(59450400001)(6512007)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB1112;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;A:1;MX:1; x-microsoft-antispam-message-info: Pe4XpKHqbX+aCmxpzC5GEF6cPKkCUCm3NIzjvkDD0W9lQXMXyknga4oi2GgUH+qN52FLaicm4rO5xaVIibSKC+Lhx4+AAa/IIEixY3ltFGlaBhPTd8xviyw+5ya0jGN17qWQZHoDPTXCsBJJqFJjGQbEhPul6y0AtS3j2kecovyOlmULmCGDpW7exyQdQ1EbWi/MH3HO37OL8PEfoj1By7bd5kqKO3YJd2++3zow4KjfegDYsMmVLtEIDPZCMNJs47Hon/fGk14Zl2PWEnOZQu9rP0as2UIiA3tfrTDihit1LKAkJzpBYtL3svF7rDXkI0D6mRUO7e84SWUaue2gsg== 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: 8f8991fd-9564-4b39-68d8-08d58db47636 X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Mar 2018 16:13:20.3397 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1112 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 bb8cbf5961bf..d375968c8072 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