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=-3.6 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, 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 0E8F3C433DF for ; Tue, 25 Aug 2020 01:26:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D8B752072D for ; Tue, 25 Aug 2020 01:26:04 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ryVk9vuP" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726024AbgHYBZ7 (ORCPT ); Mon, 24 Aug 2020 21:25:59 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51630 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725648AbgHYBZ6 (ORCPT ); Mon, 24 Aug 2020 21:25:58 -0400 Received: from mail-lf1-x141.google.com (mail-lf1-x141.google.com [IPv6:2a00:1450:4864:20::141]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B26D7C061795; Mon, 24 Aug 2020 18:25:57 -0700 (PDT) Received: by mail-lf1-x141.google.com with SMTP id c15so5514374lfi.3; Mon, 24 Aug 2020 18:25:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=Jpy+rSx3coyHvf0g6hIeypuYpqa8oP10BXDs9xh41qM=; b=ryVk9vuPpSwNGdnQNdFbQ3QD9HAT9QzYuB4mGsXCREHyb9TETMffIvJgtHbwJ1D6UP KuyibYmYeTsHzqSPwAZ7IM3ImefPvC825bzFijw4oLdQVwxI7Y3gjMwjGDKLJMWy2hgK jO6AV4Mh4mQoiR6vyWPwpCWZNQ/zaXpbntgb/Bneml08MUNDPosduafgTksHGiIK0Ztg o5gVVQQN/hr5w2mQ/i0M2W5EwHlOf//EBa59DdZViV9/7QlO56/00xXyZtXKARHd0xvd ZJt7i6S5/olhJMBMfGBV3G0T62G4Z+NDh+OixQrTnP/B/9noSDO6Le1Hc7DGhZ3lwZDK Md6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=Jpy+rSx3coyHvf0g6hIeypuYpqa8oP10BXDs9xh41qM=; b=HSyxJCr7TerAmZlbKAOtBkum94HRlAeNQjtravEGnKKtgqr+uBnafEicP1fCIfAPM+ /9sAifP0lvak0m4f30wn2b3d2GjXr+TEA8TBs4qZfmQELreC2Z1furEGEf1DhSRX3Z9i WoC816JV9a0umgki6/Uh83nAL3IJjvWOHZv3UeQEVIucGC0yNrJI1VmljyIcHBHQdwvY Uow4YCLncBsj0wxWhboG7FxlaPyXmPlen8Cq6wLEZtuX8miQJrZN+Kn1cNLKpeQ4Rn9+ XJHjoVk0tjQ1d1ii5g57xUa9FKn6mDFvPguTs6j5rCjOKMtnmjjspGtmiA/JTpX+gKMV 6TAA== X-Gm-Message-State: AOAM532Isi6vhO9qxGn7G6E69AXozy20T4oSmOIy99/Fd7/OHpp0GM0I U9OKnIuysR7e5Ke660tIxK2ZBZQve31yNrdb6bKsmKplubQ= X-Google-Smtp-Source: ABdhPJzK4oIDt75RqWFfSOL5JvMJ4HA7UQVacJrYLltQlmBOgqKplwE7cr9RpNmtLVFeSrI19uLRBrEHbYdf6WLlVI8= X-Received: by 2002:a05:6512:3610:: with SMTP id f16mr3727857lfs.8.1598318755939; Mon, 24 Aug 2020 18:25:55 -0700 (PDT) MIME-Version: 1.0 References: <20200821111111.6c04acd6@canb.auug.org.au> <20200825112020.43ce26bb@canb.auug.org.au> In-Reply-To: <20200825112020.43ce26bb@canb.auug.org.au> From: Alexei Starovoitov Date: Mon, 24 Aug 2020 18:25:44 -0700 Message-ID: Subject: Re: linux-next: build failure after merge of the bpf-next tree To: Stephen Rothwell Cc: Daniel Borkmann , Alexei Starovoitov , Networking , Linux Next Mailing List , Linux Kernel Mailing List , David Miller Content-Type: text/plain; charset="UTF-8" Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Mon, Aug 24, 2020 at 6:20 PM Stephen Rothwell wrote: > > Hi all, > > On Fri, 21 Aug 2020 11:11:11 +1000 Stephen Rothwell wrote: > > > > Hi all, > > > > After merging the bpf-next tree, today's linux-next build (x86_64 > > allmodconfig) failed like this: > > > > Auto-detecting system features: > > ... libelf: [ [31mOFF [m ] > > ... zlib: [ [31mOFF [m ] > > ... bpf: [ [32mon [m ] > > > > No libelf found > > make[5]: *** [Makefile:284: elfdep] Error 1 > > > > Caused by commit > > > > d71fa5c9763c ("bpf: Add kernel module with user mode driver that populates bpffs.") > > > > [For a start, can we please *not* add this verbose feature detection > > output to the nrormal build?] > > > > This is a PowerPC hosted cross build. > > > > I have marked BPF_PRELOAD as BROKEN for now. > > Still getting this failure ... I don't have powerpc with crosscompiler to x86 to reproduce. What exactly the error? bpf_preload has: "depends on CC_CAN_LINK" which is exactly the same as bpfilter. You should have seen this issue with bpfilter for years now.