From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-13.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A6988C4338F for ; Fri, 30 Jul 2021 01:59:49 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id C7DFC603E9 for ; Fri, 30 Jul 2021 01:59:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org C7DFC603E9 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=kingsoft.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:45812 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m9HoR-0000Sq-Qr for qemu-devel@archiver.kernel.org; Thu, 29 Jul 2021 21:59:47 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46256) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1m9Hng-00088c-AB for qemu-devel@nongnu.org; Thu, 29 Jul 2021 21:59:00 -0400 Received: from [114.255.44.146] (port=39573 helo=mail.kingsoft.com) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1m9Hnd-0007aT-3B for qemu-devel@nongnu.org; Thu, 29 Jul 2021 21:58:59 -0400 X-AuditID: 0a580157-e15ff7000006309b-29-61035cd15bb9 Received: from mail.kingsoft.com (localhost [10.88.1.79]) (using TLS with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mail.kingsoft.com (SMG-1-NODE-87) with SMTP id 2B.0D.12443.2DC53016; Fri, 30 Jul 2021 09:58:42 +0800 (HKT) Received: from KSbjmail3.kingsoft.cn (10.88.1.78) by KSBJMAIL4.kingsoft.cn (10.88.1.79) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2176.14; Fri, 30 Jul 2021 09:58:41 +0800 Received: from KSbjmail3.kingsoft.cn ([fe80::7d5f:5fcb:9c30:789b]) by KSBJMAIL3.kingsoft.cn ([fe80::7d5f:5fcb:9c30:789b%6]) with mapi id 15.01.2176.014; Fri, 30 Jul 2021 09:58:41 +0800 From: =?utf-8?B?QUlFUlBBVElKSUFORzEgW+iJvuWwlOW4leaPkOaxn8K36Zi/5biD6YO96LWb?= =?utf-8?B?5Lmw5o+QXQ==?= To: "lvivier@redhat.com" , "amit@kernel.org" , "qemu-devel@nongnu.org" , "stefanha@redhat.com" , "mst@redhat.com" Subject: [PATCH] hw/char/virtio-serial-bus: fix: Unpop throttled VirtQueueElement to queue before discard vq data Thread-Topic: [PATCH] hw/char/virtio-serial-bus: fix: Unpop throttled VirtQueueElement to queue before discard vq data Thread-Index: AQHXfhCIoeZCoIzDgkWI30flJ82In6tWICuAgASwioA= Date: Fri, 30 Jul 2021 01:58:41 +0000 Message-ID: <918AA6D7-F6C6-4A0E-8E65-6C7ECF148304@kingsoft.com> References: <2904D378-AA27-4510-A3C8-7E2E34DF37EF@kingsoft.com> <330EE4BB-DE8D-4D4A-9E6E-08E50BDA5E45@kingsoft.com> In-Reply-To: <330EE4BB-DE8D-4D4A-9E6E-08E50BDA5E45@kingsoft.com> Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.88.2.22] Content-Type: text/plain; charset="utf-8" Content-ID: <4592EBBE170B6A4C8AA901D4B726320F@kingsoft.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFupkkeLIzCtJLcpLzFFi42LhimD0170Uw5xo0L6O0eLz3TnsFp8apCz+ /3rFanG8dweLxetJ/1kdWD02repk83hybTOTx/t9V9kCmKO4bFJSczLLUov07RK4Ms5du8Ne 0CJesa1xLXsD4w6xLkZODgkBE4m/t1ezdjFycQgJTGeSOPLjOzOE84JRYuumPqjMHkaJD8e/ sIE4bALtjBKHD08Hy4gI3GSUOLf0OBPIMGGBYomnv/8D9XMAJSokbv1JAQmLCFhJtFxdywZi swioSpzZdYYRpIRXwF5i42l+kLCQQKlE3/5uVhCbU8BB4uaxbSwgNqOArMS0R/fBpjMLiEvM nTaLFeJsAYkle84zQ9iiEi8f/4OKy0lsONHJDjKeWUBTYv0ufYhWa4mdeyYxQtiKElO6H7KD 2LwCghInZz5hmcAoNgvJhlkI3bOQdM9C0j0LSfcCRtZVjCzFuemGmxghsRW+g3Fe00e9Q4xM HIyHGCU4mJVEeF//+J8gxJuSWFmVWpQfX1Sak1p8iFGag0VJnLfk4L8EIYH0xJLU7NTUgtQi mCwTB6dUA5Pd/DcFqd3GPekJnBfiuf67PjJUNshRdu1Rrux8dMg8ob2qUXF9ml1vd0TOk0Bl nXDuufudYu7WcRuv/xCvxOs86dN9wznhGRZl33Wbne1j4urrLgsfKnXsXNFpfkOyyfa/6euo 5btObTZUe+q4si/lescezr9yj5n5Vgkdu/JeZjbbhNMhoWJlffcL+H9bfLZ/2ryf1WNSl+3E s+ofv0z69jFwtX6xLgtT4tXk03fjomL/JZ+dmlgTulw7Wd1To9aoNup0cnbIlmTj0BqNr36v f9W/crhQfNTurUpgV1vV0vzgiPQl2pcl0qZOE9Ur4JfoPOmxt6d+d+6fxe8XVNjV6nKdWK1t Z5y06akSS3FGoqEWc1FxIgAW9PPNHAMAAA== X-Host-Lookup-Failed: Reverse DNS lookup failed for 114.255.44.146 (failed) Received-SPF: pass client-ip=114.255.44.146; envelope-from=AIERPATIJIANG1@kingsoft.com; helo=mail.kingsoft.com X-Spam_score_int: -10 X-Spam_score: -1.1 X-Spam_bar: - X-Spam_report: (-1.1 / 5.0 requ) BAYES_00=-1.9, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" UG9ydHMgZW50ZXIgYSAidGhyb3R0bGVkIiBzdGF0ZSB3aGVuIHdyaXRpbmcgdG8gdGhlIGNoYXJk ZXYgd291bGQgYmxvY2suDQpUaGUgY3VycmVudCBvdXRwdXQgVmlydFF1ZXVlRWxlbWVudCBpcyBr ZXB0IGFyb3VuZCB1bnRpbCB0aGUgY2hhcmRldg0KYmVjb21lcyB3cml0YWJsZSBhZ2Fpbi4NCg0K QmVjYXVzZSBjbG9zaW5nIHRoZSB2aXJ0aW8gc2VyaWFsIGRldmljZSBkb2VzIG5vdCByZXNldCB0 aGUgcXVldWUsIHdlIGNhbm5vdA0KZGlyZWN0bHkgZGlzY2FyZCB0aGlzIGVsZW1lbnQsICBvdGhl cndpc2UgdGhlIGNvbnRyb2wgdmFyaWFibGVzIG9mIHRoZSBmcm9udA0KYW5kIGJhY2sgZW5kcyBv ZiB0aGUgcXVldWUgYXJlIGluY29uc2lzdGVudCBzdWNoIGFzIHVzZWRfaW5kZXguIFdlIHNob3Vs ZCB1bnBvcCB0aGUNClZpcnRRdWV1ZUVsZW1lbnQgdG8gcXVldWUsIGxldCBkaXNjYXJkX3ZxX2Rh dGEgcHJvY2VzcyBpdC4NCg0KVGhlIHRlc3QgZW52aXJvbm1lbnQ6DQprZXJuZWw6IGxpbnV4LTUu MTINClFlbXUgY29tbWFuZDoNClFlbXUtc3lzdGVtLXg4NiAtbWFjaGluZSBwYyxhY2NlbD1rdm0g XA0KICAgIC1jcHUgaG9zdCxob3N0LXBoeXMtYml0cyBcDQogICAgLXNtcCA0IFwNCiAgICAtbSA0 RyBcDQogICAgLWtlcm5lbCAuL2tlcm5lbCBcDQogICAgLWRpc3BsYXkgbm9uZSBcDQogICAgLW5v ZGVmYXVsdHMgXA0KICAgIC1zZXJpYWwgbW9uOnN0ZGlvIFwNCiAgICAtYXBwZW5kICJwYW5pYz0x IG5vX3RpbWVyX2NoZWNrIG5vcmVwbGFjZS1zbXAgcm9vdGZsYWdzPWRhdGE9b3JkZXJlZCByb290 ZnN0eXBlPWV4dDQgY29uc29sZT10dHlTMCByZWJvb3Q9ayByb290PS9kZXYvdmRhMSBydyIgXA0K ICAgIC1kcml2ZSBpZD1vcyxmaWxlPS4vZGlzayxpZj1ub25lIFwNCiAgICAtZGV2aWNlIHZpcnRp by1ibGstcGNpLGRyaXZlPW9zIFwNCiAgICAtZGV2aWNlIHZpcnRpby1zZXJpYWwtcGNpLGlkPXZp cnRpby1zZXJpYWwwLGJ1cz1wY2kuMCxhZGRyPTB4NCBcDQogICAgLWNoYXJkZXYgc29ja2V0LGlk PWNoYXJjaGFubmVsMCxwYXRoPS90bXAvY2hhci1kZXYtdGVzdCxzZXJ2ZXIsbm93YWl0IFwNCiAg LWRldmljZSB2aXJ0c2VyaWFscG9ydCxidXM9dmlydGlvLXNlcmlhbDAuMCxucj0xLGNoYXJkZXY9 Y2hhcmNoYW5uZWwwLGlkPWNoYW5uZWwwLG5hbWU9b3JnLnFlbXUuZ3Vlc3RfYWdlbnQuMA0KDQpm dWxsIHVwIHZpcnRpbyBxdWV1ZSBhZnRlciBWTSBzdGFydGVkOg0KQ2F0IC9sYXJnZS1maWxlID4g L2Rldi92cG9ydDFwMQ0KDQpIb3N0IHNpZGU6DQpPcGVuIGFuZCBjbG9zZSBjaGFyYWN0ZXIgZGV2 aWNlIHNvY2tldHMgcmVwZWF0ZWRseQ0KDQpBZnRlciBhd2hpbGUgd2UgY2Fu4oCZdCB3cml0ZSBh bnkgcmVxdWVzdCB0byAvZGV2L3Zwb3J0MXAxIGF0IFZNIHNpZGUsIFZNIGtlcm5lbCBzb2Z0IGxv Y2t1cCBhdCBkcml2ZXJzL2NoYXIvdmlydGlvX2NvbnNvbGUuYzogX19zZW5kX3RvX3BvcnQNCg0K DQpTaWduZWQtb2ZmLWJ5OiBBcmFmYXRtcyA8YWllcnBhdGlqaWFuZzFAa2luZ3NvZnQuY29tPg0K DQpkaWZmIC0tZ2l0IGEvaHcvY2hhci92aXJ0aW8tc2VyaWFsLWJ1cy5jIGIvaHcvY2hhci92aXJ0 aW8tc2VyaWFsLWJ1cy5jDQppbmRleCBkZDZiYzI3YjNiLi4zNjIzNmRlZmRmIDEwMDY0NA0KLS0t IGEvaHcvY2hhci92aXJ0aW8tc2VyaWFsLWJ1cy5jDQorKysgYi9ody9jaGFyL3ZpcnRpby1zZXJp YWwtYnVzLmMNCkBAIC0xNTAsOCArMTUwLDEyIEBAIHN0YXRpYyB2b2lkIGRpc2NhcmRfdnFfZGF0 YShWaXJ0UXVldWUgKnZxLCBWaXJ0SU9EZXZpY2UgKnZkZXYpDQoNCnN0YXRpYyB2b2lkIGRpc2Nh cmRfdGhyb3R0bGVfZGF0YShWaXJ0SU9TZXJpYWxQb3J0ICpwb3J0KQ0Kew0KKyAgICBpZiAoIXZp cnRpb19xdWV1ZV9yZWFkeShwb3J0LT5vdnEpKSB7DQorICAgICAgICByZXR1cm47DQorICAgIH0N CisNCiAgICAgaWYgKHBvcnQtPmVsZW0pIHsNCi0gICAgICAgIHZpcnRxdWV1ZV9kZXRhY2hfZWxl bWVudChwb3J0LT5vdnEsIHBvcnQtPmVsZW0sIDApOw0KKyAgICAgICAgdmlydHF1ZXVlX3VucG9w KHBvcnQtPm92cSwgcG9ydC0+ZWxlbSwgMCk7DQogICAgICAgICBnX2ZyZWUocG9ydC0+ZWxlbSk7 DQogICAgICAgICBwb3J0LT5lbGVtID0gTlVMTDsNCiAgICAgfQ0KDQoNCg0K