From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on gnuweeb.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=NICE_REPLY_A, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Received: from www62.your-server.de (www62.your-server.de [213.133.104.62]) by gnuweeb.org (Postfix) with ESMTPS id 539097E312 for ; Wed, 13 Apr 2022 23:08:01 +0000 (UTC) Received: from sslproxy02.your-server.de ([78.47.166.47]) by www62.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92.3) (envelope-from ) id 1nelpW-0002n1-Cw; Thu, 14 Apr 2022 00:51:18 +0200 Received: from [85.1.206.226] (helo=linux.home) by sslproxy02.your-server.de with esmtpsa (TLSv1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1nelpW-000AyP-7e; Thu, 14 Apr 2022 00:51:18 +0200 Subject: Re: [ammarfaizi2-block:bpf/bpf-next/pr/bpf-sysctl 1/1] kernel/bpf/syscall.c:4944:13: warning: no previous prototype for 'unpriv_ebpf_notify' To: kernel test robot , Yan Zhu Cc: kbuild-all@lists.01.org, GNU/Weeb Mailing List , linux-kernel@vger.kernel.org References: <202204140614.Tt9e1fIt-lkp@intel.com> From: Daniel Borkmann Message-ID: Date: Thu, 14 Apr 2022 00:51:17 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.7.2 MIME-Version: 1.0 In-Reply-To: <202204140614.Tt9e1fIt-lkp@intel.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-US Content-Transfer-Encoding: 7bit X-Authenticated-Sender: daniel@iogearbox.net X-Virus-Scanned: Clear (ClamAV 0.103.5/26511/Wed Apr 13 10:22:45 2022) List-Id: On 4/14/22 12:42 AM, kernel test robot wrote: > tree: https://github.com/ammarfaizi2/linux-block bpf/bpf-next/pr/bpf-sysctl > head: 2900005ea287b11dcc8c1b9fcf24893b7ff41d6d > commit: 2900005ea287b11dcc8c1b9fcf24893b7ff41d6d [1/1] bpf: Move BPF sysctls from kernel/sysctl.c to BPF core > config: sh-buildonly-randconfig-r001-20220413 (https://download.01.org/0day-ci/archive/20220414/202204140614.Tt9e1fIt-lkp@intel.com/config) > compiler: sh4-linux-gcc (GCC) 11.2.0 > 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/ammarfaizi2/linux-block/commit/2900005ea287b11dcc8c1b9fcf24893b7ff41d6d > git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block > git fetch --no-tags ammarfaizi2-block bpf/bpf-next/pr/bpf-sysctl > git checkout 2900005ea287b11dcc8c1b9fcf24893b7ff41d6d > # save the config file to linux build tree > mkdir build_dir > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sh SHELL=/bin/bash > > If you fix the issue, kindly add following tag as appropriate > Reported-by: kernel test robot > > All error/warnings (new ones prefixed by >>): > > sh4-linux-ld: arch/sh/lib/mcount.o: in function `stack_panic': >>> (.text+0x50): undefined reference to `dump_stack' > -- >>> kernel/bpf/syscall.c:4944:13: warning: no previous prototype for 'unpriv_ebpf_notify' [-Wmissing-prototypes] > 4944 | void __weak unpriv_ebpf_notify(int new_state) > | ^~~~~~~~~~~~~~~~~~ > > > vim +/unpriv_ebpf_notify +4944 kernel/bpf/syscall.c > > 4943 >> 4944 void __weak unpriv_ebpf_notify(int new_state) > 4945 { > 4946 } > 4947 > (Note that this is no different than the way it was before wrt prototype.)