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 2AB6AC761A6 for ; Tue, 4 Apr 2023 02:22:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232553AbjDDCWD (ORCPT ); Mon, 3 Apr 2023 22:22:03 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33040 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229688AbjDDCWB (ORCPT ); Mon, 3 Apr 2023 22:22:01 -0400 Received: from mga04.intel.com (mga04.intel.com [192.55.52.120]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E70BF1BFB; Mon, 3 Apr 2023 19:21:59 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680574919; x=1712110919; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=S9jlvO03mnmm15rtkefUHtXNrIuNeFHbwAHrntbkPhg=; b=b+GIowuRFxmSdRjWVTcBI0664n/9pnubNPbZLBN9ZnsYQvX2b1VoFztG 0KpO9YS2HUUJmxCk0oPXfW80faoy4dqLsipzKKMEiLSvecD40cYybzezX w5Yh6CtUfNI7L+LbwotjXB+dnlqucpRbn7EbLjjx+I8MCL94C5K2n5H9U zrgJK68aBjkWclZTVr+6Ol+M6ipPtvRXLbJ9VtlmVe6QGSaYzU5Ki48Pc fAN8qO/lbhvrfwMk/hHgDJ3AkpeVJkj8zT1HD/lA4z3lO9TidSRPZ9Ozo 7L6+RDzsO7eMm8WGILJxY7XysZ266dQbfQQMHPdXDE+6K1yg/GbBE3exO w==; X-IronPort-AV: E=McAfee;i="6600,9927,10669"; a="340801865" X-IronPort-AV: E=Sophos;i="5.98,316,1673942400"; d="scan'208";a="340801865" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by fmsmga104.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Apr 2023 19:21:59 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10669"; a="810056483" X-IronPort-AV: E=Sophos;i="5.98,316,1673942400"; d="scan'208";a="810056483" Received: from lkp-server01.sh.intel.com (HELO b613635ddfff) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 03 Apr 2023 19:21:53 -0700 Received: from kbuild by b613635ddfff with local (Exim 4.96) (envelope-from ) id 1pjWIy-000P2g-3A; Tue, 04 Apr 2023 02:21:52 +0000 Date: Tue, 4 Apr 2023 10:21:14 +0800 From: kernel test robot To: Dmitry Safonov , linux-kernel@vger.kernel.org, David Ahern , Eric Dumazet , Paolo Abeni , Jakub Kicinski , "David S. Miller" Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, netdev@vger.kernel.org, Dmitry Safonov , Andy Lutomirski , Ard Biesheuvel , Bob Gilligan , Dan Carpenter , David Laight , Eric Biggers , "Eric W. Biederman" , Francesco Ruggeri , Herbert Xu , Hideaki YOSHIFUJI , Ivan Delalande , Leonard Crestez , Salam Noureddine Subject: Re: [PATCH v5 01/21] [draft] net/tcp: Prepare tcp_md5sig_pool for TCP-AO Message-ID: <202304041030.rTLITKDY-lkp@intel.com> References: <20230403213420.1576559-2-dima@arista.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230403213420.1576559-2-dima@arista.com> Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Hi Dmitry, kernel test robot noticed the following build warnings: [auto build test WARNING on 7e364e56293bb98cae1b55fd835f5991c4e96e7d] url: https://github.com/intel-lab-lkp/linux/commits/Dmitry-Safonov/net-tcp-Prepare-tcp_md5sig_pool-for-TCP-AO/20230404-054020 base: 7e364e56293bb98cae1b55fd835f5991c4e96e7d patch link: https://lore.kernel.org/r/20230403213420.1576559-2-dima%40arista.com patch subject: [PATCH v5 01/21] [draft] net/tcp: Prepare tcp_md5sig_pool for TCP-AO config: hexagon-randconfig-r041-20230403 (https://download.01.org/0day-ci/archive/20230404/202304041030.rTLITKDY-lkp@intel.com/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project 67409911353323ca5edf2049ef0df54132fa1ca7) 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/94408bb4cf5cbcc772ab4d70eeb73bda183c6124 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Dmitry-Safonov/net-tcp-Prepare-tcp_md5sig_pool-for-TCP-AO/20230404-054020 git checkout 94408bb4cf5cbcc772ab4d70eeb73bda183c6124 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=hexagon SHELL=/bin/bash net/ipv4/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot | Link: https://lore.kernel.org/oe-kbuild-all/202304041030.rTLITKDY-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from net/ipv4/tcp_sigpool.c:10: In file included from include/net/tcp.h:20: In file included from include/linux/tcp.h:17: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:547:31: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __raw_readb(PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:560:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le16_to_cpu((__le16 __force)__raw_readw(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:37:51: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) ((__force __u16)(__le16)(x)) ^ In file included from net/ipv4/tcp_sigpool.c:10: In file included from include/net/tcp.h:20: In file included from include/linux/tcp.h:17: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:573:61: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] val = __le32_to_cpu((__le32 __force)__raw_readl(PCI_IOBASE + addr)); ~~~~~~~~~~ ^ include/uapi/linux/byteorder/little_endian.h:35:51: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) ((__force __u32)(__le32)(x)) ^ In file included from net/ipv4/tcp_sigpool.c:10: In file included from include/net/tcp.h:20: In file included from include/linux/tcp.h:17: In file included from include/linux/skbuff.h:17: In file included from include/linux/bvec.h:10: In file included from include/linux/highmem.h:12: In file included from include/linux/hardirq.h:11: In file included from ./arch/hexagon/include/generated/asm/hardirq.h:1: In file included from include/asm-generic/hardirq.h:17: In file included from include/linux/irq.h:20: In file included from include/linux/io.h:13: In file included from arch/hexagon/include/asm/io.h:334: include/asm-generic/io.h:584:33: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writeb(value, PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:594:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writew((u16 __force)cpu_to_le16(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ include/asm-generic/io.h:604:59: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] __raw_writel((u32 __force)cpu_to_le32(value), PCI_IOBASE + addr); ~~~~~~~~~~ ^ >> net/ipv4/tcp_sigpool.c:63:9: warning: comparison of distinct pointer types ('typeof (size) *' (aka 'unsigned int *') and 'typeof (__scratch_size) *' (aka 'unsigned long *')) [-Wcompare-distinct-pointer-types] size = max(size, __scratch_size); ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:74:19: note: expanded from macro 'max' #define max(x, y) __careful_cmp(x, y, >) ^~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:36:24: note: expanded from macro '__careful_cmp' __builtin_choose_expr(__safe_cmp(x, y), \ ^~~~~~~~~~~~~~~~ include/linux/minmax.h:26:4: note: expanded from macro '__safe_cmp' (__typecheck(x, y) && __no_side_effects(x, y)) ^~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:28: note: expanded from macro '__typecheck' (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) ~~~~~~~~~~~~~~ ^ ~~~~~~~~~~~~~~ 7 warnings generated. vim +63 net/ipv4/tcp_sigpool.c 43 44 /* 45 * sigpool_reserve_scratch - re-allocates scratch buffer, slow-path 46 * @size: request size for the scratch/temp buffer 47 */ 48 static int sigpool_reserve_scratch(size_t size) 49 { 50 struct scratches_to_free *stf; 51 size_t stf_sz = struct_size(stf, scratches, num_possible_cpus()); 52 int cpu, err = 0; 53 54 lockdep_assert_held(&cpool_mutex); 55 if (__scratch_size >= size) 56 return 0; 57 58 stf = kmalloc(stf_sz, GFP_KERNEL); 59 if (!stf) 60 return -ENOMEM; 61 stf->cnt = 0; 62 > 63 size = max(size, __scratch_size); 64 cpus_read_lock(); 65 for_each_possible_cpu(cpu) { 66 void *scratch, *old_scratch; 67 68 scratch = kmalloc_node(size, GFP_KERNEL, cpu_to_node(cpu)); 69 if (!scratch) { 70 err = -ENOMEM; 71 break; 72 } 73 74 old_scratch = rcu_replace_pointer(per_cpu(sigpool_scratch, cpu), scratch, lockdep_is_held(&cpool_mutex)); 75 if (!cpu_online(cpu) || !old_scratch) { 76 kfree(old_scratch); 77 continue; 78 } 79 stf->scratches[stf->cnt++] = old_scratch; 80 } 81 cpus_read_unlock(); 82 if (!err) 83 __scratch_size = size; 84 85 call_rcu(&stf->rcu, free_old_scratches); 86 return err; 87 } 88 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests