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Thu, 8 Mar 2018 01:35:22 -0500 Received: from mail-bl2nam02on0092.outbound.protection.outlook.com ([104.47.38.92]:59552 "EHLO NAM02-BL2-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S965459AbeCHE74 (ORCPT ); Wed, 7 Mar 2018 23:59:56 -0500 From: Sasha Levin To: "linux-kernel@vger.kernel.org" , "stable@vger.kernel.org" CC: Yuyang Du , Felipe Balbi , Sasha Levin Subject: [PATCH AUTOSEL for 4.9 003/190] usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control() Thread-Topic: [PATCH AUTOSEL for 4.9 003/190] usb: gadget: dummy_hcd: Fix wrong power status bit clear/reset in dummy_hub_control() Thread-Index: AQHTtpokgoLEZfHIUk6oS7WTzwYyFw== Date: Thu, 8 Mar 2018 04:58:47 +0000 Message-ID: <20180308045810.8041-3-alexander.levin@microsoft.com> References: <20180308045810.8041-1-alexander.levin@microsoft.com> In-Reply-To: <20180308045810.8041-1-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;DM5PR2101MB0920;20:TnZYRzNEnT1DnbBtmOZtkvsHBiDDQmdhbo2IE9whDJZGRrpo+L3w5y/adC2LHUyDUR0OcQcYgATSJ0L+m3lwMSvGqC/VAC9zzxIWt0uy/W9fDdpb4/11IgzXRiHpk0h1k+i81bb3yg0eh8H6GRf0x2XzFXFJU/6Bl/5Lc2J8IQY= x-ms-office365-filtering-ht: Tenant x-ms-office365-filtering-correlation-id: 6d0eee45-22dc-423d-bc3a-08d584b16d59 x-microsoft-antispam: UriScan:;BCL:0;PCL:0;RULEID:(7020095)(4652020)(48565401081)(5600026)(4604075)(3008032)(4534165)(4627221)(201703031133081)(201702281549075)(2017052603328)(7193020);SRVR:DM5PR2101MB0920; 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In the case of ClearPortFeature and USB_PORT_FEAT_POWER, simply clear the right bit regardless of what the wValue is. Acked-by: Alan Stern Signed-off-by: Yuyang Du Signed-off-by: Felipe Balbi Signed-off-by: Sasha Levin --- drivers/usb/gadget/udc/dummy_hcd.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/du= mmy_hcd.c index b62a3de65075..ff4d6cac7ac0 100644 --- a/drivers/usb/gadget/udc/dummy_hcd.c +++ b/drivers/usb/gadget/udc/dummy_hcd.c @@ -2103,16 +2103,13 @@ static int dummy_hub_control( } break; case USB_PORT_FEAT_POWER: - if (hcd->speed =3D=3D HCD_USB3) { - if (dum_hcd->port_status & USB_PORT_STAT_POWER) - dev_dbg(dummy_dev(dum_hcd), - "power-off\n"); - } else - if (dum_hcd->port_status & - USB_SS_PORT_STAT_POWER) - dev_dbg(dummy_dev(dum_hcd), - "power-off\n"); - /* FALLS THROUGH */ + dev_dbg(dummy_dev(dum_hcd), "power-off\n"); + if (hcd->speed =3D=3D HCD_USB3) + dum_hcd->port_status &=3D ~USB_SS_PORT_STAT_POWER; + else + dum_hcd->port_status &=3D ~USB_PORT_STAT_POWER; + set_link_state(dum_hcd); + break; default: dum_hcd->port_status &=3D ~(1 << wValue); set_link_state(dum_hcd); @@ -2283,14 +2280,13 @@ static int dummy_hub_control( if ((dum_hcd->port_status & USB_SS_PORT_STAT_POWER) !=3D 0) { dum_hcd->port_status |=3D (1 << wValue); - set_link_state(dum_hcd); } } else if ((dum_hcd->port_status & USB_PORT_STAT_POWER) !=3D 0) { dum_hcd->port_status |=3D (1 << wValue); - set_link_state(dum_hcd); } + set_link_state(dum_hcd); } break; case GetPortErrorCount: --=20 2.14.1