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 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 5C288C07E9B for ; Mon, 19 Jul 2021 12:38:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 347EC6113A for ; Mon, 19 Jul 2021 12:38:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231533AbhGSL55 (ORCPT ); Mon, 19 Jul 2021 07:57:57 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]:58470 "EHLO us-smtp-delivery-124.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231388AbhGSL54 (ORCPT ); Mon, 19 Jul 2021 07:57:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1626698316; 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=9xnPevyU/vinvxm9fpLnz13ttiz6/qE1ToIVXogNE+c=; b=QL2zVu247E78B49KAcVCgdg3/m7/kirPBGBNy7AwqvZPURjmJceSUnN2mVKGVvjLfj1VEW sxpL0AfKrgH4wsLIamBqvl/jp4s/gjU/IAd5ExphklIXhJcGT+ZMM2nRRcUfopvArjNJuG enn3IGfe5EwCCYRWpwWt8FNRRt/LAgo= Received: from mail-ej1-f70.google.com (mail-ej1-f70.google.com [209.85.218.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-598-DyOpQBITPvWR1rDbiCb7ow-1; Mon, 19 Jul 2021 08:38:35 -0400 X-MC-Unique: DyOpQBITPvWR1rDbiCb7ow-1 Received: by mail-ej1-f70.google.com with SMTP id sd15-20020a170906ce2fb0290512261c5475so5308606ejb.13 for ; Mon, 19 Jul 2021 05:38:34 -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=9xnPevyU/vinvxm9fpLnz13ttiz6/qE1ToIVXogNE+c=; b=r05b71CevRKnrTpIsVn2Rwq3APnvADlqAQv7V2a3hcCRE+TEfeoLQhrHyYpQ8DyzqU UTpziJjQplK8leQO4+XZ3mqWlnJgSZi5Gj4Yo4LBhweymQN82Mo1DFSeucnb3UhWiTm5 TmgWouvrV2rb8VTgnHOlpO9c8qrQQkCobL2bkfQhJj8dzHrlkA+ZXzKUfm/D9Mu0NbyY 2XOTHiDP6GrDBII4rilu4VbWNUGsGdrsWKDo8G5Fo7r6fSMgZtT4yMyUik+Ml/3UmiXp IzxhUXN+WiNRS3oUAS1YC4PKCgj6Xi3/IGRIhIlOU8wrEtEHrUztStKIk63b0zkA7+Hn 8P3g== X-Gm-Message-State: AOAM530IG1vlUXmdsKgmus4FPRbf29FdqQxL8LZisUoAOa87KDSbq8ty bVL1j+rj/7Gfq7qtxM+M3GH0XIp/CzXYmwXfg+t+jHE59oeNkK9u71nefynxyMEBeHH0nqmFsuf wp4YgpUjmGTpK X-Received: by 2002:a05:6402:692:: with SMTP id f18mr34700411edy.327.1626698313963; Mon, 19 Jul 2021 05:38:33 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwnczeyvEpOgLXM/x4GwI3PK+KqvUJeavIe9mVLcwzRkXbCNtd51hBnv/Dbxxr24TjaxK5HTQ== X-Received: by 2002:a05:6402:692:: with SMTP id f18mr34700397edy.327.1626698313850; Mon, 19 Jul 2021 05:38:33 -0700 (PDT) Received: from alrua-x1.borgediget.toke.dk ([45.145.92.2]) by smtp.gmail.com with ESMTPSA id d18sm5856039ejr.50.2021.07.19.05.38.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 19 Jul 2021 05:38:33 -0700 (PDT) Received: by alrua-x1.borgediget.toke.dk (Postfix, from userid 1000) id 506F7180065; Mon, 19 Jul 2021 14:38:32 +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: <6b659192-5133-981e-0c43-7ca1120edd9c@huawei.com> 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> X-Clacks-Overhead: GNU Terry Pratchett Date: Mon, 19 Jul 2021 14:38:32 +0200 Message-ID: <87wnpmtr5j.fsf@toke.dk> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org "luwei (O)" writes: > Andrii and Toke inspired me. You are right, the libbpf version should be included in -V output > , but not mine. I searched google and found this page: https://www.spinics.net/lists/netdev/msg700482.html > , according which I re-compiled iproute2 and it works. Did the libbpf version appear in the output of 'ip -V' after you recompiled and enabled it? It does in mine: $ ./ip/ip -V ip utility, iproute2-5.13.0, libbpf 0.4.0 -Toke