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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS 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 E3815C433F5 for ; Wed, 22 Sep 2021 02:21:28 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CAFC66112F for ; Wed, 22 Sep 2021 02:21:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229638AbhIVCW5 (ORCPT ); Tue, 21 Sep 2021 22:22:57 -0400 Received: from szxga02-in.huawei.com ([45.249.212.188]:16370 "EHLO szxga02-in.huawei.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229531AbhIVCWz (ORCPT ); Tue, 21 Sep 2021 22:22:55 -0400 Received: from dggemv711-chm.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4HDhkx3RsyzRQYl; Wed, 22 Sep 2021 10:17:13 +0800 (CST) Received: from dggema724-chm.china.huawei.com (10.3.20.88) by dggemv711-chm.china.huawei.com (10.1.198.66) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256) id 15.1.2308.8; Wed, 22 Sep 2021 10:21:22 +0800 Received: from dggema772-chm.china.huawei.com (10.1.198.214) by dggema724-chm.china.huawei.com (10.3.20.88) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.2308.8; Wed, 22 Sep 2021 10:21:22 +0800 Received: from dggema772-chm.china.huawei.com ([10.9.128.138]) by dggema772-chm.china.huawei.com ([10.9.128.138]) with mapi id 15.01.2308.008; Wed, 22 Sep 2021 10:21:22 +0800 From: "liujian (CE)" To: Cong Wang CC: John Fastabend , Daniel Borkmann , Jakub Sitnicki , Lorenz Bauer , David Miller , Jakub Kicinski , Linux Kernel Network Developers , bpf Subject: RE: [PATCH v2] skmsg: lose offset info in sk_psock_skb_ingress Thread-Topic: [PATCH v2] skmsg: lose offset info in sk_psock_skb_ingress Thread-Index: AQHXq2PFQrRB7jzQNEa7mJCtoY3loqurnLeAgAO5YEA= Date: Wed, 22 Sep 2021 02:21:21 +0000 Message-ID: References: <20210917013222.74225-1-liujian56@huawei.com> In-Reply-To: Accept-Language: zh-CN, en-US Content-Language: zh-CN X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.174.176.93] Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org DQoNCj4gLS0tLS1PcmlnaW5hbCBNZXNzYWdlLS0tLS0NCj4gRnJvbTogQ29uZyBXYW5nIFttYWls dG86eGl5b3Uud2FuZ2NvbmdAZ21haWwuY29tXQ0KPiBTZW50OiBNb25kYXksIFNlcHRlbWJlciAy MCwgMjAyMSA5OjE0IEFNDQo+IFRvOiBsaXVqaWFuIChDRSkgPGxpdWppYW41NkBodWF3ZWkuY29t Pg0KPiBDYzogSm9obiBGYXN0YWJlbmQgPGpvaG4uZmFzdGFiZW5kQGdtYWlsLmNvbT47IERhbmll bCBCb3JrbWFubg0KPiA8ZGFuaWVsQGlvZ2VhcmJveC5uZXQ+OyBKYWt1YiBTaXRuaWNraSA8amFr dWJAY2xvdWRmbGFyZS5jb20+OyBMb3JlbnoNCj4gQmF1ZXIgPGxtYkBjbG91ZGZsYXJlLmNvbT47 IERhdmlkIE1pbGxlciA8ZGF2ZW1AZGF2ZW1sb2Z0Lm5ldD47IEpha3ViDQo+IEtpY2luc2tpIDxr dWJhQGtlcm5lbC5vcmc+OyBMaW51eCBLZXJuZWwgTmV0d29yayBEZXZlbG9wZXJzDQo+IDxuZXRk ZXZAdmdlci5rZXJuZWwub3JnPjsgYnBmIDxicGZAdmdlci5rZXJuZWwub3JnPg0KPiBTdWJqZWN0 OiBSZTogW1BBVENIIHYyXSBza21zZzogbG9zZSBvZmZzZXQgaW5mbyBpbiBza19wc29ja19za2Jf aW5ncmVzcw0KPiANCj4gT24gRnJpLCBTZXAgMTcsIDIwMjEgYXQgMzowNSBBTSBMaXUgSmlhbiA8 bGl1amlhbjU2QGh1YXdlaS5jb20+IHdyb3RlOg0KPiA+IEBAIC02MjQsNiArNjM1LDEzIEBAIHN0 YXRpYyB2b2lkIHNrX3Bzb2NrX2JhY2tsb2coc3RydWN0IHdvcmtfc3RydWN0DQo+ICp3b3JrKQ0K PiA+ICAgICAgICAgd2hpbGUgKChza2IgPSBza2JfZGVxdWV1ZSgmcHNvY2stPmluZ3Jlc3Nfc2ti KSkpIHsNCj4gPiAgICAgICAgICAgICAgICAgbGVuID0gc2tiLT5sZW47DQo+ID4gICAgICAgICAg ICAgICAgIG9mZiA9IDA7DQo+ID4gKyNpZiBJU19FTkFCTEVEKENPTkZJR19CUEZfU1RSRUFNX1BB UlNFUikNCj4gPiArICAgICAgICAgICAgICAgaWYgKHBzb2NrLT5zay0+c2tfZGF0YV9yZWFkeSA9 PSBza19wc29ja19zdHJwX2RhdGFfcmVhZHkpIHsNCj4gPiArICAgICAgICAgICAgICAgICAgICAg ICBzdG0gPSBzdHJwX21zZyhza2IpOw0KPiA+ICsgICAgICAgICAgICAgICAgICAgICAgIG9mZiA9 IHN0bS0+b2Zmc2V0Ow0KPiA+ICsgICAgICAgICAgICAgICAgICAgICAgIGxlbiA9IHN0bS0+ZnVs bF9sZW47DQo+ID4gKyAgICAgICAgICAgICAgIH0NCj4gPiArI2VuZGlmDQo+IA0KPiBIb3cgZG9l cyB0aGlzIHdvcms/IFlvdSBhcmUgdGVzdGluZyBwc29jay0+c2stPnNrX2RhdGFfcmVhZHkgaGVy ZSBidXQgaXQgaXMNCj4gYWxyZWFkeSB0aGUgZGVzdCBzb2NrIGhlcmUsIHNvLCBpZiB3ZSByZWRp cmVjdCBhIHN0cnBfbXNnKCkgZnJvbSBzdHJwIHNvY2tldCB0bw0KPiBub24tc3RycCBzb2NrZXQs IHRoaXMgZG9lcyBub3Qgd29yayBhdCBhbGw/DQo+IA0KWWVzLCBpdCBpcyBub3Qgd29yayBpbiB0 aGlzIGNhc2UsIEkgZGlkIG5vdCBjb25zaWRlciB0aGlzIGNhc2UuDQoNCj4gQW5kIHRoaXMgY29k ZSBsb29rcyB1Z2x5IGl0c2VsZi4gSWYgeW91IHdhbnQgdG8gZGlzdGluZ3Vpc2ggdGhpcyB0eXBl IG9mIHBhY2tldA0KPiBmcm9tIG90aGVycywgeW91IGNhbiBhZGQgYSBiaXQgaW4sIGZvciBleGFt cGxlIHNrYi0+X3NrX3JlZGlyLg0KSXQgbG9va3MgYmV0dGVyIHRoaXMgd2F5LiANCkkgd2lsbCBz ZW5kIHYzIGxhdGVyLiBUaGFuayB5b3V+DQo+IA0KPiBUaGFua3MuDQo=