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Wysocki" , Sasha Levin Subject: [PATCH AUTOSEL for 3.18 015/101] ACPICA: Events: Add runtime stub support for event APIs Thread-Topic: [PATCH AUTOSEL for 3.18 015/101] ACPICA: Events: Add runtime stub support for event APIs Thread-Index: AQHTz5qksfaeXhngTk2ZcOpqB50Eeg== Date: Mon, 9 Apr 2018 00:35:22 +0000 Message-ID: <20180409003505.164715-15-alexander.levin@microsoft.com> References: <20180409003505.164715-1-alexander.levin@microsoft.com> In-Reply-To: <20180409003505.164715-1-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;DM5PR2101MB1047;7:3AggIOEwQrhbTlu6d4cixOKKySDiAPvqw758YV6P95SS1Y7765Eq8WkCs9cAVJAfPhUGoYPBbQ+mwoqORJviI48R+kSpXmEwz7WM/xc8jyVOzb15QqoI3H28n0Lk5eL2Bvr71zTs+WM5VB7dp2vV1LtXyhgqFJyHw+l53H/kSsPB2NdCcWsM5ixDnOLENHYg5GKgpT4U3RaVI5aQffDVJnvvmZVk5qPwwjNjirH5Qo9Cs5fRj7TlbQz/KGcEviaU;20:CzutL2orLMiRL4wPuC3WK7j0l90kbG92480We5zBjRynPJAnNBzT8MnHk+ntQOxCMgJaNsDkneV/YfmLZ6X/EkMATgTSycpbGjmDqs6tWjvuQDrFCu+y8iVbH7VeRasLGLf09HzSZq6k/w7ageO/lfaM8El0WrdKhuWtyau/9js= x-ms-office365-filtering-ht: Tenant X-MS-Office365-Filtering-Correlation-Id: 49f35b70-364d-4a74-4a19-08d59db25e2a x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB1047; x-ms-traffictypediagnostic: DM5PR2101MB1047: 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)(8121501046)(5005006)(93006095)(93001095)(3231221)(944501327)(52105095)(3002001)(10201501046)(6055026)(61426038)(61427038)(6041310)(20161123562045)(201703131423095)(201702281528075)(20161123555045)(201703061421075)(201703061406153)(20161123558120)(20161123564045)(20161123560045)(6072148)(201708071742011);SRVR:DM5PR2101MB1047;BCL:0;PCL:0;RULEID:;SRVR:DM5PR2101MB1047; x-forefront-prvs: 0637FCE711 x-forefront-antispam-report: SFV:NSPM;SFS:(10019020)(376002)(396003)(366004)(39860400002)(346002)(39380400002)(189003)(199004)(97736004)(3660700001)(2900100001)(2906002)(8936002)(11346002)(3280700002)(106356001)(446003)(68736007)(72206003)(1076002)(966005)(86612001)(25786009)(3846002)(36756003)(107886003)(6116002)(81166006)(4326008)(486006)(81156014)(6306002)(6512007)(6436002)(53936002)(14454004)(8676002)(26005)(5250100002)(86362001)(105586002)(6666003)(305945005)(186003)(10290500003)(7736002)(10090500001)(102836004)(6486002)(2616005)(5660300001)(316002)(2501003)(66066001)(22452003)(54906003)(99286004)(110136005)(478600001)(59450400001)(476003)(76176011)(6506007)(22906009)(217873001);DIR:OUT;SFP:1102;SCL:1;SRVR:DM5PR2101MB1047;H:DM5PR2101MB1032.namprd21.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; x-microsoft-antispam-message-info: QBzugJuc4n/1+mTRoReuZQKxttJS8aqdkeNXmhNHcfEPJyJOuNj8YvUNlZ2pZHAABxfh9/xHaPEVaeHhXHfgfz9qLgds/cxeQ1YHyuFJv0UtFVAOJp/0xLxDGO+eUL7DbD05gyLNhKEOHxLz3IOGG3M0M/zU/ZBPQhwVQIqZzJFBkYfOGeHNg4O6q21KngSTe1QmgnICbYT6M6WQvhMaQOG6lJ8ND0oSyStxwBrFYOVYNM3IE5ByusfE5zyi1TU+BqCkgYWXJWCQKTOopX8iG15A9bzY6H/T7zJHMMoD0JmqLatm3xteSZ0NXfbffEoYUbublkbMBGckOh29Es8qzgFalP4nKqloljhta/G7ieTiDVg/eUF9D8PwryANZ7668CoeRUSqhptJzi3skbiOT1FJXjXLl4wMaqy7xOXVr5E= 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: 49f35b70-364d-4a74-4a19-08d59db25e2a X-MS-Exchange-CrossTenant-originalarrivaltime: 09 Apr 2018 00:35:22.1423 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM5PR2101MB1047 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 2.15.1