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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id C6BB6C433EF for ; Fri, 10 Jun 2022 00:53:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231237AbiFJAxA (ORCPT ); Thu, 9 Jun 2022 20:53:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57394 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238951AbiFJAw7 (ORCPT ); Thu, 9 Jun 2022 20:52:59 -0400 Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D3002158970; Thu, 9 Jun 2022 17:52:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1654822377; x=1686358377; h=date:from:to:cc:subject:message-id:references: mime-version:content-transfer-encoding:in-reply-to; bh=hfzqHZ9WZZKqlNxOYXcLszDyFwmAwNzB+DvcFyJmCZE=; b=a7MoYxdT9wnD3BoHPI9+ZcohzKFsE1gec17kZekr5Wo350h6cHI4szF4 7HaD+xJhswA6Rx6rgk8cGjDaAHbY1/bpg9vmupNstJh9Yzw8zC2eyo8UY XLO3lM8s4/aqSM6UhlCxdoYn7iDAWpeYqHiizzfhqr69v87TypCSYgSw2 sPhvtZzS1SLz/RddBS3m5qGhVE0deRKmP+VBlvQ92TUXxEnCf8YPkMpzk H+rVxQSxIXcjlJzpw3PGDsVTCjbEap9L7TymjQG48c5J0jqwloZbjTzDj zGP1Y3+MnDAGDz5X4LfHjkH6z7doqjU/psLO1YPUpLIm4m9yddxy2Gbrf A==; X-IronPort-AV: E=McAfee;i="6400,9594,10373"; a="341537502" X-IronPort-AV: E=Sophos;i="5.91,288,1647327600"; d="scan'208";a="341537502" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Jun 2022 17:52:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,288,1647327600"; d="scan'208";a="533855446" Received: from lkp-server01.sh.intel.com (HELO 60dabacc1df6) ([10.239.97.150]) by orsmga003.jf.intel.com with ESMTP; 09 Jun 2022 17:52:54 -0700 Received: from kbuild by 60dabacc1df6 with local (Exim 4.95) (envelope-from ) id 1nzStS-000GXR-2d; Fri, 10 Jun 2022 00:52:54 +0000 Date: Fri, 10 Jun 2022 08:52:50 +0800 From: kernel test robot To: =?iso-8859-1?Q?J=F6rn-Thorben?= Hinz , bpf@vger.kernel.org Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, Alexei Starovoitov , Daniel Borkmann , Andrii Nakryiko , Martin KaFai Lau , netdev@vger.kernel.org, =?iso-8859-1?Q?J=F6rn-Thorben?= Hinz Subject: Re: [PATCH bpf-next v2 2/2] bpf: Require only one of cong_avoid() and cong_control() from a TCP CC Message-ID: <202206100820.VN7PQCkp-lkp@intel.com> References: <20220609204702.2351369-3-jthinz@mailbox.tu-berlin.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <20220609204702.2351369-3-jthinz@mailbox.tu-berlin.de> Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org Hi "Jörn-Thorben, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/J-rn-Thorben-Hinz/bpf-Allow-a-TCP-CC-to-write-sk_pacing_rate-and-sk_pacing_status/20220610-054718 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: i386-randconfig-a015 (https://download.01.org/0day-ci/archive/20220610/202206100820.VN7PQCkp-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 70d35fe1257e429266b83025997b400e9f79110e) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/ac2a3c95ce28ad79c2ef7e6c52c4fd25af9f3c6d git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review J-rn-Thorben-Hinz/bpf-Allow-a-TCP-CC-to-write-sk_pacing_rate-and-sk_pacing_status/20220610-054718 git checkout ac2a3c95ce28ad79c2ef7e6c52c4fd25af9f3c6d # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/ipv4/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> net/ipv4/bpf_tcp_ca.c:225:6: warning: unused variable 'prog_fd' [-Wunused-variable] int prog_fd; ^ 1 warning generated. vim +/prog_fd +225 net/ipv4/bpf_tcp_ca.c 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 218 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 219 static int bpf_tcp_ca_init_member(const struct btf_type *t, 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 220 const struct btf_member *member, 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 221 void *kdata, const void *udata) 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 222 { 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 223 const struct tcp_congestion_ops *utcp_ca; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 224 struct tcp_congestion_ops *tcp_ca; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 @225 int prog_fd; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 226 u32 moff; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 227 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 228 utcp_ca = (const struct tcp_congestion_ops *)udata; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 229 tcp_ca = (struct tcp_congestion_ops *)kdata; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 230 8293eb995f349a Alexei Starovoitov 2021-12-01 231 moff = __btf_member_bit_offset(t, member) / 8; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 232 switch (moff) { 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 233 case offsetof(struct tcp_congestion_ops, flags): 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 234 if (utcp_ca->flags & ~TCP_CONG_MASK) 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 235 return -EINVAL; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 236 tcp_ca->flags = utcp_ca->flags; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 237 return 1; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 238 case offsetof(struct tcp_congestion_ops, name): 8e7ae2518f5265 Martin KaFai Lau 2020-03-13 239 if (bpf_obj_name_cpy(tcp_ca->name, utcp_ca->name, 8e7ae2518f5265 Martin KaFai Lau 2020-03-13 240 sizeof(tcp_ca->name)) <= 0) 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 241 return -EINVAL; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 242 if (tcp_ca_find(utcp_ca->name)) 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 243 return -EEXIST; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 244 return 1; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 245 } 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 246 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 247 return 0; 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 248 } 0baf26b0fcd74b Martin KaFai Lau 2020-01-08 249 -- 0-DAY CI Kernel Test Service https://01.org/lkp