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X-IronPort-AV: E=McAfee;i="6600,9927,10809"; a="460147097" X-IronPort-AV: E=Sophos;i="6.01,192,1684825200"; d="scan'208";a="460147097" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 21 Aug 2023 22:12:00 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10809"; a="685912356" X-IronPort-AV: E=Sophos;i="6.01,192,1684825200"; d="scan'208";a="685912356" Received: from lkp-server02.sh.intel.com (HELO 6809aa828f2a) ([10.239.97.151]) by orsmga003.jf.intel.com with ESMTP; 21 Aug 2023 22:11:57 -0700 Received: from kbuild by 6809aa828f2a with local (Exim 4.96) (envelope-from ) id 1qYJgK-0001OM-1s; Tue, 22 Aug 2023 05:11:56 +0000 Date: Tue, 22 Aug 2023 13:11:01 +0800 From: kernel test robot To: Helge Deller , linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, Andrei Vagin , Andrew Morton Cc: llvm@lists.linux.dev, oe-kbuild-all@lists.linux.dev, Linux Memory Management List , linux-parisc@vger.kernel.org Subject: Re: [PATCH] procfs: Fix /proc/self/maps output for 32-bit kernel and compat tasks Message-ID: <202308221231.B7yBmSQV-lkp@intel.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: 33C5140003 X-Rspam-User: X-Rspamd-Server: rspam02 X-Stat-Signature: hxeftpjsgbifmrodmcyd8b6are55a989 X-HE-Tag: 1692681122-315252 X-HE-Meta: U2FsdGVkX19skC0FSZbP1j4tU1pn6VvH0YHCE02GIvkTx+sFGEQzuVqSMY+a71WkFDpMGxKZTxNmekcH0cl35V6lD3EUEROrP0gZHagJ4/ERi9Qcbdg4+pmT6CxiQ9CwbDJz1vprYDbrTIZ+iXsjNeJ44py4GHCuwBEKDwXU7YsootmWc6AY3I1nBbPiAMbPIS7vDQLVjNh8EPsPC0kzetzzcHFQ/V7Aor7eHOH/tDh9d+JGydxPNm9To+IMMUVnDYlBr8hSGbXVUu6BPK9UY7Uv+ylczHzb94zHlRyRgBN96XIsWxUU6UtLhOUNv2HkGzPafxuit1p6qyxNoIGrIoBY2wUeQz5RiTpsbVvC0ecOfWAuJCbtFhXD0tPOOo5R3483dLZF2XvWySyhh1aep6ZkFci9f7S5rEzQHuUgEbnOumCstS263yvhNYs3BK2Qy6LMjiM4WAonxV7U+rA5a6FlZ+a9KufDUDgFEMTUnJy4aWjG/XUwBztd6mxlXBuhnndIxMamQmhBj7LJ8t6FCZMuaQKy/aIQ2/m05dO8yQwDIZy/rwZKvP4gXl7l+Ai+74/kAsCo5njYuqjkBKBFRrHLMiyMw0Fhkui9fISFZjyxdq5gywSIuOYdTmvkoMd8O/2z7aTVsW8M929kJVbugtlMcvtQ4cg/PHCMa/VhK5L2SbOuvbEVFRi9o8y7FjN2WjuvR1a3Tav4aKDBagMsTnE0FNngt32NW+cGq3u6YMhWF1u8clJbCCqfG8zd8myH1VXdezIkA8GHkYpAKVddlWqUfKaRkvwwCVHUiLzgbmap2v5uK3xQcCpsTwD9Ekhk42nLCE/bFqruYffVK7FXrvGu5K78wBfOnu4e9x43Ye9K+MXf9y8IWQJb+8UbAe1qCGMK4JAR2loyrMp391O4qBwDIuibRIR9UC2pqeCCXlIRUhyWdThjV3UyHP39ZOY2q3ULV/WbnNN9Ur+kZ7R +fem3X4n UZOfxavXfjMk2xJHUs6ioGT0UKJgtvaQfZDeVMkIHLk02xdG4yeVBUX0Owa7E7da/sDCeYf2rz7Bd3EzVLB0ITidAsP7D/MPH/QTIgVkHYtgWinXHCokcnK3VYf+rgwsWbzegoqlkqgpQ7rNcevzFurYB63lkwzyp2uWbu3s/Tvw40NzxoRfSIntHTMqm9qkBKvKJ5p4AKt46OyDVjUo0+JZmKqJYDC7O/jveAAi1Xvi/063DL9tqx+7/XSQJw3xIcWc2CZHqfUFmJTX0c+5XR8uI0cJfN4QmJ94wwRMU61toT9OjgwsQ3pTxPMb+OkvDzugam5TB7JqfqElZlNu+b43+2U9Yc2b1t4/fFQCDkGAYo9U= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Hi Helge, kernel test robot noticed the following build errors: [auto build test ERROR on linus/master] [also build test ERROR on v6.5-rc7 next-20230821] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Helge-Deller/procfs-Fix-proc-self-maps-output-for-32-bit-kernel-and-compat-tasks/20230821-100823 base: linus/master patch link: https://lore.kernel.org/r/ZOCJltW%2FeufPUc%2BT%40p100 patch subject: [PATCH] procfs: Fix /proc/self/maps output for 32-bit kernel and compat tasks config: x86_64-randconfig-013-20230821 (https://download.01.org/0day-ci/archive/20230822/202308221231.B7yBmSQV-lkp@intel.com/config) compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07) reproduce: (https://download.01.org/0day-ci/archive/20230822/202308221231.B7yBmSQV-lkp@intel.com/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202308221231.B7yBmSQV-lkp@intel.com/ All errors (new ones prefixed by >>): >> fs/seq_file.c:765:16: error: call to undeclared function 'is_compat_task'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration] if (v == 0 || is_compat_task()) ^ 1 error generated. vim +/is_compat_task +765 fs/seq_file.c 737 738 /** 739 * seq_put_hex_ll - put a number in hexadecimal notation 740 * @m: seq_file identifying the buffer to which data should be written 741 * @delimiter: a string which is printed before the number 742 * @v: the number 743 * @width: a minimum field width 744 * 745 * seq_put_hex_ll(m, "", v, 8) is equal to seq_printf(m, "%08llx", v) 746 * 747 * This routine is very quick when you show lots of numbers. 748 * In usual cases, it will be better to use seq_printf(). It's easier to read. 749 */ 750 void seq_put_hex_ll(struct seq_file *m, const char *delimiter, 751 unsigned long long v, unsigned int width) 752 { 753 unsigned int len; 754 int i; 755 756 if (delimiter && delimiter[0]) { 757 if (delimiter[1] == 0) 758 seq_putc(m, delimiter[0]); 759 else 760 seq_puts(m, delimiter); 761 } 762 763 #ifdef CONFIG_64BIT 764 /* If x is 0, the result of __builtin_clzll is undefined */ > 765 if (v == 0 || is_compat_task()) 766 len = 1; 767 else 768 len = (sizeof(v) * 8 - __builtin_clzll(v) + 3) / 4; 769 #else 770 /* On 32-bit kernel always use provided width */ 771 len = 1; 772 #endif 773 774 if (len < width) 775 len = width; 776 777 if (m->count + len > m->size) { 778 seq_set_overflow(m); 779 return; 780 } 781 782 for (i = len - 1; i >= 0; i--) { 783 m->buf[m->count + i] = hex_asc[0xf & v]; 784 v = v >> 4; 785 } 786 m->count += len; 787 } 788 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki