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 B9FA8C433F5 for ; Tue, 25 Jan 2022 04:52:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1386807AbiAYEwC (ORCPT ); Mon, 24 Jan 2022 23:52:02 -0500 Received: from mga17.intel.com ([192.55.52.151]:10061 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S254077AbiAYEfi (ORCPT ); Mon, 24 Jan 2022 23:35:38 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1643085336; x=1674621336; h=date:from:to:cc:subject:message-id:mime-version; bh=btpSsofGXMb//G1HnIaGfv9hthpngTmm6P9YloCibIM=; b=hjAsUs4NhDYcpF7hdbRfaEhby1kDUsKSrOqK7EE90ja3uncrHr8FQ5n5 SbMYtFSYPcTf5txhg8IOt+qO0Mju7sZDay5v0W6NRuNkYZAZtexlqWArG /zyD2Aq77l6NIG5h4mxV4z22ULOtZ+oQHzTea+1mq4mAk+9QvMC6f0FsP LHgj0d/WY+vK24+4pZ80Se50ETu2AWRMJ1GCAbHSfpzKESTdcRb0WM24g C6e6MzfufZrybeATc19RcHuuyeIP5y+JaZqUFHUJ6Co10O9FxbOjgszTF YeoSrAtFadNHCwDtjT671osfWGewhwS/VCyRXh1wgeaZZIvgd4d7HQWBm Q==; X-IronPort-AV: E=McAfee;i="6200,9189,10237"; a="226886255" X-IronPort-AV: E=Sophos;i="5.88,314,1635231600"; d="scan'208";a="226886255" Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 Jan 2022 20:30:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,314,1635231600"; d="scan'208";a="768899550" Received: from lkp-server01.sh.intel.com (HELO 276f1b88eecb) ([10.239.97.150]) by fmsmga005.fm.intel.com with ESMTP; 24 Jan 2022 20:30:23 -0800 Received: from kbuild by 276f1b88eecb with local (Exim 4.92) (envelope-from ) id 1nCDTK-000JMB-Gj; Tue, 25 Jan 2022 04:30:22 +0000 Date: Tue, 25 Jan 2022 12:29:25 +0800 From: kernel test robot To: Ingo Molnar Cc: kbuild-all@lists.01.org, linux-kernel@vger.kernel.org Subject: [mingo-tip:sched/headers 2357/2384] drivers/usb/chipidea/ci.h:427:32: error: implicit declaration of function '__ffs' Message-ID: <202201251220.wdEh9zG4-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers head: 4c707c1c0de83967079b4e385012fa5b00e2cd11 commit: 61ea5a6fab5c8fae043a02a100970041dc6a877e [2357/2384] headers/deps: delay: Optimize dependencies, remove inclusion config: mips-randconfig-m031-20220124 (https://download.01.org/0day-ci/archive/20220125/202201251220.wdEh9zG4-lkp@intel.com/config) compiler: mips64-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://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git/commit/?id=61ea5a6fab5c8fae043a02a100970041dc6a877e git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip sched/headers git checkout 61ea5a6fab5c8fae043a02a100970041dc6a877e # 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=mips SHELL=/bin/bash drivers/usb/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from drivers/usb/chipidea/otg.c:23: drivers/usb/chipidea/ci.h: In function 'hw_test_and_write': >> drivers/usb/chipidea/ci.h:427:32: error: implicit declaration of function '__ffs' [-Werror=implicit-function-declaration] 427 | return (val & mask) >> __ffs(mask); | ^~~~~ cc1: some warnings being treated as errors vim +/__ffs +427 drivers/usb/chipidea/ci.h e443b333629f82 Alexander Shishkin 2012-05-11 411 e443b333629f82 Alexander Shishkin 2012-05-11 412 /** e443b333629f82 Alexander Shishkin 2012-05-11 413 * hw_test_and_write: tests & writes a hw register 19353881b4afc9 Peter Chen 2014-09-22 414 * @ci: the controller e443b333629f82 Alexander Shishkin 2012-05-11 415 * @reg: register index e443b333629f82 Alexander Shishkin 2012-05-11 416 * @mask: bitfield mask e443b333629f82 Alexander Shishkin 2012-05-11 417 * @data: new value e443b333629f82 Alexander Shishkin 2012-05-11 418 * e443b333629f82 Alexander Shishkin 2012-05-11 419 * This function returns register contents e443b333629f82 Alexander Shishkin 2012-05-11 420 */ 8e22978c57087a Alexander Shishkin 2013-06-24 421 static inline u32 hw_test_and_write(struct ci_hdrc *ci, enum ci_hw_regs reg, e443b333629f82 Alexander Shishkin 2012-05-11 422 u32 mask, u32 data) e443b333629f82 Alexander Shishkin 2012-05-11 423 { 26c696c678c4ce Richard Zhao 2012-07-07 424 u32 val = hw_read(ci, reg, ~0); e443b333629f82 Alexander Shishkin 2012-05-11 425 26c696c678c4ce Richard Zhao 2012-07-07 426 hw_write(ci, reg, mask, data); 727b4ddb48dcd8 Felipe Balbi 2013-03-30 @427 return (val & mask) >> __ffs(mask); e443b333629f82 Alexander Shishkin 2012-05-11 428 } e443b333629f82 Alexander Shishkin 2012-05-11 429 :::::: The code at line 427 was first introduced by commit :::::: 727b4ddb48dcd8c9ca81b58ca58191233bdf75aa usb: chipidea: don't redefine __ffs() :::::: TO: Felipe Balbi :::::: CC: Greg Kroah-Hartman --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org