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=-7.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 9A701C07E95 for ; Tue, 20 Jul 2021 15:17:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7BA21610A0 for ; Tue, 20 Jul 2021 15:17:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237851AbhGTOgZ (ORCPT ); Tue, 20 Jul 2021 10:36:25 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:53235 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234579AbhGTORU (ORCPT ); Tue, 20 Jul 2021 10:17:20 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1626793034; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=JYeEMxZkqQmanUk3SXevDIn341JznEMVqJ/f4SJD7Ok=; b=cSf5h4CsgPizW25XCKrFYMsXs22id2WrEaXyb1KytHXrYDTBFkle3J11Tvu5DVxiugl+54 qBPtc9UDu2xB6xRBlAeh1yUQnqRDXQurZZOp+kWKKei9j+VjTA5EA9pcxSeo2+Tv1g2jID Fc/jTm9ols9+CxPKGMmvZSfyrw6NzFo= Received: from mail-ej1-f71.google.com (mail-ej1-f71.google.com [209.85.218.71]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-207-UQ0Iqv-uM-69v0QKNrjdAw-1; Tue, 20 Jul 2021 10:57:12 -0400 X-MC-Unique: UQ0Iqv-uM-69v0QKNrjdAw-1 Received: by mail-ej1-f71.google.com with SMTP id y3-20020a17090614c3b0290551ea218ea2so2439096ejc.5 for ; Tue, 20 Jul 2021 07:57:12 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:in-reply-to:references:date :message-id:mime-version; bh=JYeEMxZkqQmanUk3SXevDIn341JznEMVqJ/f4SJD7Ok=; b=cQGkr4mLxgKazvWNVaOcWGO1stIQ/buhdi/EtnOYZgmP79aEH2CYgrcDp3xDIlKMTo CQhxL7Fz/rvpNTalYS5+BO1iB+PdiHz31iT7Pf9Hn6ui2RgOX0SF4IQAJetYZxLy0mLL qgQ+vITNpt8qvfC3rpBS9cmZS+AYSGGpeMWnD6FEPQXeKRYHWdmUUm3OoIZqtAHxiSSI 1Ugct2nl/Zy6WrlWjks+NX+GUyiIV3+e0I/OxYF9OEYwuDOHxGRbJ3eoyKTNaKGgRFxO CSksgQmRtbpRqgaSa0L9lHw9gzEiqoc/BC7YQ03JgxRz6pRxl1pGytdEUdEfT+ADUfjg HnMw== X-Gm-Message-State: AOAM531/nvB8Z0gdGCl1tXIgnOGoc59KO4TyZ6so1AXNwoTFvRCXe3VE qREjtblXCeCeGOA1F+3HrKDK82vPQ3ESkxpR+bFNjJDmRONj8hpTYn1yMO3UBbtnfBoWZb5j6mN g/6IGK44w0e/GTLXT X-Received: by 2002:a17:907:264e:: with SMTP id ar14mr33337149ejc.134.1626793031599; Tue, 20 Jul 2021 07:57:11 -0700 (PDT) X-Google-Smtp-Source: ABdhPJxDRp0wSPGh04ZIsh3ykqs5PMxabHS1Vc0+4aUbwzWbk1J39PLB5QrktN8iIcYORB5fmseh/A== X-Received: by 2002:a17:907:264e:: with SMTP id ar14mr33337129ejc.134.1626793031420; Tue, 20 Jul 2021 07:57:11 -0700 (PDT) Received: from alrua-x1.borgediget.toke.dk ([45.145.92.2]) by smtp.gmail.com with ESMTPSA id i6sm7832882edt.28.2021.07.20.07.57.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 20 Jul 2021 07:57:10 -0700 (PDT) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 58AD718060A; Tue, 20 Jul 2021 16:50:08 +0200 (CEST) From: Toke =?utf-8?Q?H=C3=B8iland-J=C3=B8rgensen?= To: "luwei (O)" , Alexei Starovoitov Cc: Andrii Nakryiko , bpf , Networking , David Ahern Subject: Re: Ask for help about bpf map In-Reply-To: References: <5aebe6f4-ca0d-4f64-8ee6-b68c58675271@huawei.com> <8735sidtwe.fsf@toke.dk> <26db412c-a8b7-6d37-844f-7909a0c5744b@huawei.com> <189e4437-bb2c-2573-be96-0d6776feb5dd@huawei.com> <6b659192-5133-981e-0c43-7ca1120edd9c@huawei.com> <87wnpmtr5j.fsf@toke.dk> X-Clacks-Overhead: GNU Terry Pratchett Date: Tue, 20 Jul 2021 16:50:08 +0200 Message-ID: <87a6mh82fz.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org "luwei (O)" writes: > It's very strange, in my virtual host, it is: > > $ ip -V > > ip utility, iproute2-5.11.0 > > > but in my physical host: > > $ ip -V > ip utility, iproute2-5.11.0, libbpf 0.5.0 > > > I compiled iproute2 in the same way as I mentioned previously, and the > kernel versions are both 5.13 (in fact the same code) . When compiling, the configure script should tell you whether it can find libbpf. If not, it's probably because you don't have the right header files installed... -Toke