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Wed, 12 May 2021 08:40:56 +0000 From: "Xia, Chenbo" To: "Jiang, Cheng1" , "maxime.coquelin@redhat.com" CC: "dev@dpdk.org" Thread-Topic: [PATCH] vhost: fix unintended sign extension in async split ring Thread-Index: AQHXRtjFX8bK9ETuGUymAJeZmD+cqqrfhwUQ Date: Wed, 12 May 2021 08:40:55 +0000 Message-ID: References: <20210512023041.30507-1-cheng1.jiang@intel.com> In-Reply-To: <20210512023041.30507-1-cheng1.jiang@intel.com> Accept-Language: en-US, zh-CN Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: authentication-results: intel.com; dkim=none (message not signed) header.d=none;intel.com; dmarc=none action=none header.from=intel.com; x-originating-ip: [192.102.204.53] x-ms-publictraffictype: Email x-ms-office365-filtering-correlation-id: 25b325d9-852a-4c7f-ac59-08d91521a8d1 x-ms-traffictypediagnostic: MN2PR11MB3760: x-ms-exchange-transport-forked: True x-microsoft-antispam-prvs: x-ms-oob-tlc-oobclassifiers: OLM:187; x-ms-exchange-senderadcheck: 1 x-microsoft-antispam: BCL:0; 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charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-AuthSource: MN2PR11MB4063.namprd11.prod.outlook.com X-MS-Exchange-CrossTenant-Network-Message-Id: 25b325d9-852a-4c7f-ac59-08d91521a8d1 X-MS-Exchange-CrossTenant-originalarrivaltime: 12 May 2021 08:40:55.8484 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 46c98d88-e344-4ed4-8496-4ed7712e255d X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: wwrWRsnn+WGZI3YU87OP2CO9IONIwUQ4WoLdTH32nhy20MykgVjYFISfX7A9/etd3uFhSBC7r89qepge5RrXJA== X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR11MB3760 X-OriginatorOrg: intel.com Subject: Re: [dpdk-dev] [PATCH] vhost: fix unintended sign extension in async split ring X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" PiAtLS0tLU9yaWdpbmFsIE1lc3NhZ2UtLS0tLQ0KPiBGcm9tOiBKaWFuZywgQ2hlbmcxIDxjaGVu ZzEuamlhbmdAaW50ZWwuY29tPg0KPiBTZW50OiBXZWRuZXNkYXksIE1heSAxMiwgMjAyMSAxMDoz MSBBTQ0KPiBUbzogbWF4aW1lLmNvcXVlbGluQHJlZGhhdC5jb207IFhpYSwgQ2hlbmJvIDxjaGVu Ym8ueGlhQGludGVsLmNvbT4NCj4gQ2M6IGRldkBkcGRrLm9yZzsgSmlhbmcsIENoZW5nMSA8Y2hl bmcxLmppYW5nQGludGVsLmNvbT4NCj4gU3ViamVjdDogW1BBVENIXSB2aG9zdDogZml4IHVuaW50 ZW5kZWQgc2lnbiBleHRlbnNpb24gaW4gYXN5bmMgc3BsaXQgcmluZw0KPiANCj4gQ2hhbmdlIHRo ZSB2YXJpYWJsZSB0eXBlIGluIHN0b3JlX2RtYV9kZXNjX2luZm9fc3BsaXQoKSB0byBmaXgNCj4g c3VzcGljaW91cyBpbXBsaWNpdCBzaWduIGV4dGVuc2lvbi4NCj4gDQo+IENvdmVyaXR5IGlzc3Vl OiAzNzA2MDQsIDM3MDYwNywgMzcwNjA5DQo+IEZpeGVzOiAzZDZjYjg2YjBkZTUgKHZob3N0OiBy ZWZhY3RvciBhc3luYyBzcGxpdCByaW5nIGZ1bmN0aW9ucykNCg0KTWlzcyAiIiBoZXJlLiBXaWxs IGFkZCB0aGVtIHdoZW4gYXBwbHlpbmcuDQoNCj4gDQo+IFNpZ25lZC1vZmYtYnk6IENoZW5nIEpp YW5nIDxjaGVuZzEuamlhbmdAaW50ZWwuY29tPg0KPiAtLS0NCj4gIGxpYi92aG9zdC92aXJ0aW9f bmV0LmMgfCAyICstDQo+ICAxIGZpbGUgY2hhbmdlZCwgMSBpbnNlcnRpb24oKyksIDEgZGVsZXRp b24oLSkNCj4gDQo+IGRpZmYgLS1naXQgYS9saWIvdmhvc3QvdmlydGlvX25ldC5jIGIvbGliL3Zo b3N0L3ZpcnRpb19uZXQuYw0KPiBpbmRleCA4ZTM2ZjRjMzQwLi45MTM3YTk5MjNiIDEwMDY0NA0K PiAtLS0gYS9saWIvdmhvc3QvdmlydGlvX25ldC5jDQo+ICsrKyBiL2xpYi92aG9zdC92aXJ0aW9f bmV0LmMNCj4gQEAgLTE0NzQsNyArMTQ3NCw3IEBAIHN0YXRpYyBfX3J0ZV9hbHdheXNfaW5saW5l IHZvaWQNCj4gIHN0b3JlX2RtYV9kZXNjX2luZm9fc3BsaXQoc3RydWN0IHZyaW5nX3VzZWRfZWxl bSAqc19yaW5nLCBzdHJ1Y3QNCj4gdnJpbmdfdXNlZF9lbGVtICpkX3JpbmcsDQo+ICAJCXVpbnQx Nl90IHJpbmdfc2l6ZSwgdWludDE2X3Qgc19pZHgsIHVpbnQxNl90IGRfaWR4LCB1aW50MTZfdCBj b3VudCkNCj4gIHsNCj4gLQl1aW50MTZfdCBlbGVtX3NpemUgPSBzaXplb2Yoc3RydWN0IHZyaW5n X3VzZWRfZWxlbSk7DQo+ICsJc2l6ZV90IGVsZW1fc2l6ZSA9IHNpemVvZihzdHJ1Y3QgdnJpbmdf dXNlZF9lbGVtKTsNCj4gDQo+ICAJaWYgKGRfaWR4ICsgY291bnQgPD0gcmluZ19zaXplKSB7DQo+ ICAJCXJ0ZV9tZW1jcHkoZF9yaW5nICsgZF9pZHgsIHNfcmluZyArIHNfaWR4LCBjb3VudCAqIGVs ZW1fc2l6ZSk7DQo+IC0tDQo+IDIuMjkuMg0KDQpSZXZpZXdlZC1ieTogQ2hlbmJvIFhpYSA8Y2hl bmJvLnhpYUBpbnRlbC5jb20+DQoNCg==