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Wed, 16 Oct 2019 12:49:56 +0000 Received: from VE1PR04MB6639.eurprd04.prod.outlook.com ([fe80::c045:5df2:ba1f:c3ee]) by VE1PR04MB6639.eurprd04.prod.outlook.com ([fe80::c045:5df2:ba1f:c3ee%5]) with mapi id 15.20.2347.023; Wed, 16 Oct 2019 12:49:56 +0000 From: Akhil Goyal To: Julien Meunier , Declan Doherty CC: "dev@dpdk.org" , "stable@dpdk.org" Thread-Topic: [PATCH v3] cryptodev: fix check related to device id Thread-Index: AQHVhAt2q0tQGJJkykKYo7T24jomA6ddOCHA Date: Wed, 16 Oct 2019 12:49:56 +0000 Message-ID: References: <20190807083946.39309-1-julien.meunier@nokia.com> <20191016102111.57077-1-julien.meunier@nokia.com> In-Reply-To: <20191016102111.57077-1-julien.meunier@nokia.com> Accept-Language: en-IN, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: spf=none (sender IP is ) smtp.mailfrom=akhil.goyal@nxp.com; x-originating-ip: [92.120.1.65] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 9fe98409-935d-4b12-9b18-08d7523758d7 x-ms-office365-filtering-ht: Tenant x-ms-traffictypediagnostic: VE1PR04MB6765: x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:8882; 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charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 9fe98409-935d-4b12-9b18-08d7523758d7 X-MS-Exchange-CrossTenant-originalarrivaltime: 16 Oct 2019 12:49:56.2378 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: iXk2l47rdTcnxgZipkKEkomOTDPCajabv5w9X4eYoBLlihZoBOap7tY/pssWmpvttInAayma7Zu8p+5ZTROdrA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: VE1PR04MB6765 Subject: Re: [dpdk-stable] [PATCH v3] cryptodev: fix check related to device id X-BeenThere: stable@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: patches for DPDK stable branches List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: stable-bounces@dpdk.org Sender: "stable" >=20 > Each cryptodev are indexed with dev_id in the global rte_crypto_devices > variable. nb_devs is incremented / decremented each time a cryptodev is > created / deleted. The goal of nb_devs was to prevent the user to get an > invalid dev_id. >=20 > Let's imagine DPDK has configured N cryptodevs. If the cryptodev=3D1 is > removed at runtime, the latest cryptodev N cannot be accessible, because > nb_devs=3DN-1 with the current implementaion. >=20 > In order to prevent this kind of behavior, let's remove the check with > nb_devs and iterate in all the rte_crypto_devices elements: if data is > not NULL, that means a valid cryptodev is available. >=20 > Also, remove max_devs field and use RTE_CRYPTO_MAX_DEVS in order to > unify the code. >=20 > Fixes: d11b0f30df88 ("cryptodev: introduce API and framework for crypto > devices") > Cc: stable@dpdk.org >=20 > Signed-off-by: Julien Meunier Acked-by: Akhil Goyal Applied to dpdk-next-crypto Thanks.