From patchwork Fri Jul 5 11:21:06 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aditya Garg X-Patchwork-Id: 810675 Received: from IND01-BMX-obe.outbound.protection.outlook.com (mail-bmxind01olkn2044.outbound.protection.outlook.com [40.92.103.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 43741154454; Fri, 5 Jul 2024 11:21:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=fail smtp.client-ip=40.92.103.44 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720178473; cv=fail; b=A0ib+5vX9uzYHp8qJnxJgDEtEUuUzaKopQtTKUR+3MebDGTD2pW8n2SKHPbzQxddW8ySfuSrTdjxZiEmkWJKLPGj50BYKYx440021x5m8dsrOxMLvbskobHk/s8XimUYxgQ3qLx7x1VggeAjiLXl/v6JNM96B08LRX8P8XYmSxM= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720178473; c=relaxed/simple; bh=VsQA3btIOyyN5eTQG5sE76+DCPEgKGpuFW8KD4X7rGI=; h=From:To:CC:Subject:Date:Message-ID:Content-Type:MIME-Version; b=hMz+tiJ2CB6cBkBQTxbvogVWmdJ607UBkBZrfLiB9VsaySwNltJUUFvxnLMT7GFK+M6nEekkXx25Jkz5px6xdKjDHv/pqJWA52nt9BJ+m9yye439n6bGI0L1FrNP68QosTqz9ZbmEQP2h78scYAyt7APRMDJimZjLE5NOXGdaTQ= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=live.com; spf=pass smtp.mailfrom=live.com; dkim=pass (2048-bit key) header.d=live.com header.i=@live.com header.b=MQs3KgpX; arc=fail smtp.client-ip=40.92.103.44 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=live.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=live.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=live.com header.i=@live.com header.b="MQs3KgpX" ARC-Seal: i=1; a=rsa-sha256; s=arcselector9901; d=microsoft.com; cv=none; b=X27ESOq0FE9R9xjw0psLUGoWPSH9lMYDiWVWMiv3sQ+hZi8PTA2owMsQELlwUT3cj31Ik18SmM67hWnekGJvNr9PuS8CFyCkLSpnpq9+ntUdsrt9V3Tj93JvRXCOqYvENAp56fRcd3giH35dsl3i5axWVWc5TBS18AHv4q0FTfu8vP4xArdk1JPU3WOfmAU9EGILfKtSxS3H7ha/+GQIVqDT5//gteT0o0eUF8IdkUW8kdMIoeFogs7gIQuubRHZDDhPY3wDLG5M0+cRGqvSOyMN5BEUnaTAeEPgmRlRFoTPU43pWW8810wrY+LvnvjpPAOZGIIPRyzRWnF5pGlLRA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector9901; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=ZXIekOKKIRkBWkz9TBaQ3jRxcRXC31sJlxol7kFnw1Q=; b=jteogqHVydjCjILTXEurUSBVJKs+lpWR/loZqjd6QFmMwXb9Uw8+BcEnFF/kBoSRwlMjrscPTeL6Zdt27Ihi/7+iaxxu3e3Mi42NpLzqjNMFaEpqRV9wsZ1HPXEsZ7Z+OoGoxask+Jkcay5gv/TXrgCJQg5Gn00XpGdRqdDFna8H4jyYpsqD3fGt3cKNXN+BZT6F5C70bRchAMk3IjGgQRyehRaNsbvgZJv/o2NRUVp8rE+VWERKBECFzlA7BqTa/KOLGl6gTsSRymbHBX/xbEhjaBGzOkts5sdkP+4ur8TKWgZJ/XJKmUpmpOPe7B3ij+XPCT7puaDXdwkXNBoKeA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=none; dmarc=none; dkim=none; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=live.com; s=selector1; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=ZXIekOKKIRkBWkz9TBaQ3jRxcRXC31sJlxol7kFnw1Q=; b=MQs3KgpXfEqlZhoz337szERNZEYfa95QkTjuIn5VktYd9OCvR3DD1P411iAPWUZeSf1wfLgMpw2HHMQ0ZBAY1bmekRZd3Y5rGt982Rp4LyUdjhcW/sC23WyTlKtzVgijanc7eL38k4W0hrFYhY9TtisuVm+xZibeWiSYM6wmSpgb0wdtFtnh36l6NTJVcwmtawabRbIIJT3KseMMLxszbk9wh+H9na550umvFnvRZRTVxzs1E9XbI1MvpYxbRIBAohBiR8hRvlUvGxO9AVvugpmldIvC7GewwTdx7waQ+FR+yoRfbHVgiR9D5772DM6dncaFyyyjGWdoqSnJJiZxmw== Received: from MA0P287MB0217.INDP287.PROD.OUTLOOK.COM (2603:1096:a01:b3::9) by PN2P287MB0940.INDP287.PROD.OUTLOOK.COM (2603:1096:c01:136::7) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.7741.31; Fri, 5 Jul 2024 11:21:06 +0000 Received: from MA0P287MB0217.INDP287.PROD.OUTLOOK.COM ([fe80::98d2:3610:b33c:435a]) by MA0P287MB0217.INDP287.PROD.OUTLOOK.COM ([fe80::98d2:3610:b33c:435a%4]) with mapi id 15.20.7741.027; Fri, 5 Jul 2024 11:21:06 +0000 From: Aditya Garg To: "gregkh@linuxfoundation.org" , "oneukum@suse.com" , "stern@rowland.harvard.edu" CC: "linux-usb@vger.kernel.org" , Linux Kernel Mailing List , "linux-scsi@vger.kernel.org" , "usb-storage@lists.one-eyed-alien.net" Subject: [PATCH] USB: core: add 'shutdown' callback to usb_driver Thread-Topic: [PATCH] USB: core: add 'shutdown' callback to usb_driver Thread-Index: AQHazs1t9chFUYSBMEexlQB4J+o1vg== Date: Fri, 5 Jul 2024 11:21:06 +0000 Message-ID: <7332D45F-9BD3-4D0E-A5AF-9845353415A9@live.com> Accept-Language: en-IN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-messagesentrepresentingtype: 1 x-tmn: [HfcWuuMloIhumeMI3AVFLSw3fUg3ojAaJTnl0GkqE1zR2b+7x6/1Qarme6/K4xNi] x-ms-publictraffictype: Email x-ms-traffictypediagnostic: MA0P287MB0217:EE_|PN2P287MB0940:EE_ x-ms-office365-filtering-correlation-id: aa1aa1f9-e67d-44d5-6b9b-08dc9ce48fed x-microsoft-antispam: BCL:0; ARA:14566002|461199028|8060799006|19110799003|102099032|3412199025|440099028; x-microsoft-antispam-message-info: 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 x-ms-exchange-antispam-messagedata-chunkcount: 1 x-ms-exchange-antispam-messagedata-0: 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 Content-ID: <61328D1390137845851B653BB91240AC@INDP287.PROD.OUTLOOK.COM> Precedence: bulk X-Mailing-List: linux-scsi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-OriginatorOrg: sct-15-20-4755-11-msonline-outlook-bafef.templateTenant X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MA0P287MB0217.INDP287.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-RMS-PersistedConsumerOrg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-Network-Message-Id: aa1aa1f9-e67d-44d5-6b9b-08dc9ce48fed X-MS-Exchange-CrossTenant-rms-persistedconsumerorg: 00000000-0000-0000-0000-000000000000 X-MS-Exchange-CrossTenant-originalarrivaltime: 05 Jul 2024 11:21:06.0328 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 84df9e7f-e9f6-40af-b435-aaaaaaaaaaaa X-MS-Exchange-Transport-CrossTenantHeadersStamped: PN2P287MB0940 From: Kerem Karabay This simplifies running code on shutdown for USB drivers. Signed-off-by: Kerem Karabay Signed-off-by: Aditya Garg --- drivers/usb/core/driver.c | 14 ++++++++++++++ drivers/usb/storage/uas.c | 5 ++--- include/linux/usb.h | 3 +++ 3 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c index f58a0299f..dc0f86376 100644 --- a/drivers/usb/core/driver.c +++ b/drivers/usb/core/driver.c @@ -514,6 +514,19 @@ static int usb_unbind_interface(struct device *dev) return 0; } +static void usb_shutdown_interface(struct device *dev) +{ + struct usb_interface *intf = to_usb_interface(dev); + struct usb_driver *driver; + + if (!dev->driver) + return; + + driver = to_usb_driver(dev->driver); + if (driver->shutdown) + driver->shutdown(intf); +} + /** * usb_driver_claim_interface - bind a driver to an interface * @driver: the driver to be bound @@ -1053,6 +1066,7 @@ int usb_register_driver(struct usb_driver *new_driver, struct module *owner, new_driver->driver.bus = &usb_bus_type; new_driver->driver.probe = usb_probe_interface; new_driver->driver.remove = usb_unbind_interface; + new_driver->driver.shutdown = usb_shutdown_interface; new_driver->driver.owner = owner; new_driver->driver.mod_name = mod_name; new_driver->driver.dev_groups = new_driver->dev_groups; diff --git a/drivers/usb/storage/uas.c b/drivers/usb/storage/uas.c index 2583ee981..591fa0379 100644 --- a/drivers/usb/storage/uas.c +++ b/drivers/usb/storage/uas.c @@ -1221,9 +1221,8 @@ static void uas_disconnect(struct usb_interface *intf) * hang on reboot when the device is still in uas mode. Note the reset is * necessary as some devices won't revert to usb-storage mode without it. */ -static void uas_shutdown(struct device *dev) +static void uas_shutdown(struct usb_interface *intf) { - struct usb_interface *intf = to_usb_interface(dev); struct usb_device *udev = interface_to_usbdev(intf); struct Scsi_Host *shost = usb_get_intfdata(intf); struct uas_dev_info *devinfo = (struct uas_dev_info *)shost->hostdata; @@ -1246,7 +1245,7 @@ static struct usb_driver uas_driver = { .suspend = uas_suspend, .resume = uas_resume, .reset_resume = uas_reset_resume, - .driver.shutdown = uas_shutdown, + .shutdown = uas_shutdown, .id_table = uas_usb_ids, }; diff --git a/include/linux/usb.h b/include/linux/usb.h index 25f8e62a3..5f3ae2186 100644 --- a/include/linux/usb.h +++ b/include/linux/usb.h @@ -1194,6 +1194,7 @@ struct usbdrv_wrap { * post_reset method is called. * @post_reset: Called by usb_reset_device() after the device * has been reset + * @shutdown: Called at shut-down time to quiesce the device. * @id_table: USB drivers use ID table to support hotplugging. * Export this with MODULE_DEVICE_TABLE(usb,...). This must be set * or your driver's probe function will never get called. @@ -1245,6 +1246,8 @@ struct usb_driver { int (*pre_reset)(struct usb_interface *intf); int (*post_reset)(struct usb_interface *intf); + void (*shutdown)(struct usb_interface *intf); + const struct usb_device_id *id_table; const struct attribute_group **dev_groups;