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 30099C433F5 for ; Wed, 22 Dec 2021 10:17:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S244114AbhLVKRn (ORCPT ); Wed, 22 Dec 2021 05:17:43 -0500 Received: from mga03.intel.com ([134.134.136.65]:58682 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234441AbhLVKRn (ORCPT ); Wed, 22 Dec 2021 05:17:43 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1640168263; x=1671704263; h=date:from:to:cc:subject:message-id:mime-version; bh=epYEwYOZgIPJXASGul5ZHxymCUvH/Gw2nSb6TlgYV/8=; b=b8qeTPXlIVMmrn43ipwvOy0r4Yz5sY5lz4/bman444tzSOA4n3s8UcGF cdPFL3469cjVBoincpR8dFxot5ht6ugaY4fUezvxNrXmGcCrqirr7K6Va C/M/1VamgWwZ0AKFg+g/5q88FZ4z23ThMsitEfYPSW5Qy8h9Fq4U61dmx aWw5wCGQEMcUdJ61LMU/zM4dGBYHiWnsrcjmrEUKWgBhgk+3X81r0Lkzp wa8NVCSTluujfYtZ3jzJIe8nzkG7sNu3tJRun/MpTarHsI4rC+0Hr3n8h 2eC69uVzvgP2rp/gTF5962sKDutCYVJnhNIzEA0+U0tG1/rj2nvajrkbD A==; X-IronPort-AV: E=McAfee;i="6200,9189,10205"; a="240544081" X-IronPort-AV: E=Sophos;i="5.88,226,1635231600"; d="scan'208";a="240544081" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 22 Dec 2021 02:17:42 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.88,226,1635231600"; d="scan'208";a="617088377" Received: from lkp-server01.sh.intel.com (HELO e357b3ef1427) ([10.239.97.150]) by orsmga004.jf.intel.com with ESMTP; 22 Dec 2021 02:17:40 -0800 Received: from kbuild by e357b3ef1427 with local (Exim 4.92) (envelope-from ) id 1mzygl-0000LT-8G; Wed, 22 Dec 2021 10:17:39 +0000 Date: Wed, 22 Dec 2021 18:16:58 +0800 From: kernel test robot To: Marcelo Tosatti Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, linux-kernel@vger.kernel.org, Thomas Gleixner Subject: kernel/time/hrtimer.c:276:20: warning: unused function 'is_migration_base' Message-ID: <202112221841.gfrIYr9j-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 Hi Marcelo, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 2f47a9a4dfa3674fad19a49b40c5103a9a8e1589 commit: 81d741d3460ca422843ce0ec8351083f259c6166 hrtimer: Avoid unnecessary SMP function calls in clock_was_set() date: 4 months ago config: mips-buildonly-randconfig-r003-20211222 (https://download.01.org/0day-ci/archive/20211222/202112221841.gfrIYr9j-lkp@intel.com/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project de4e0195ae1c39f1c3b07834b8e32c113f4f20eb) 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 # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=81d741d3460ca422843ce0ec8351083f259c6166 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 81d741d3460ca422843ce0ec8351083f259c6166 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash fs/ kernel/time/ sound/pci/hda/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): kernel/time/hrtimer.c:120:21: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_REALTIME, ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:121:22: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_MONOTONIC, ^~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:122:21: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_BOOTTIME, ^~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:123:17: warning: initializer overrides prior initialization of this subobject = HRTIMER_BASE_TAI, ^~~~~~~~~~~~~~~~ kernel/time/hrtimer.c:118:27: note: previous initialization is here [0 ... MAX_CLOCKS - 1] = HRTIMER_MAX_CLOCK_BASES, ^~~~~~~~~~~~~~~~~~~~~~~ >> kernel/time/hrtimer.c:276:20: warning: unused function 'is_migration_base' static inline bool is_migration_base(struct hrtimer_clock_base ^ >> kernel/time/hrtimer.c:1816:20: warning: unused function '__hrtimer_peek_ahead_timers' static inline void __hrtimer_peek_ahead_timers(void) ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set mips64r2 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/bitops.h", .line = 105, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: ll $0, $1 or $0, $2 sc $0, $1 beqz $0, 1b .set pop ' clang-14: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 14.0.0 (git://gitmirror/llvm_project de4e0195ae1c39f1c3b07834b8e32c113f4f20eb) Target: mipsel-unknown-linux Thread model: posix InstalledDir: /opt/cross/clang-de4e0195ae/bin clang-14: note: diagnostic msg: Makefile arch drivers fs include kernel mm nr_bisected scripts sound source usr vim +/is_migration_base +276 kernel/time/hrtimer.c c0a3132963db68 kernel/hrtimer.c Thomas Gleixner 2006-01-09 275 5d2295f3a93b04 kernel/time/hrtimer.c Sebastian Andrzej Siewior 2019-09-04 @276 static inline bool is_migration_base(struct hrtimer_clock_base *base) 5d2295f3a93b04 kernel/time/hrtimer.c Sebastian Andrzej Siewior 2019-09-04 277 { 5d2295f3a93b04 kernel/time/hrtimer.c Sebastian Andrzej Siewior 2019-09-04 278 return false; 5d2295f3a93b04 kernel/time/hrtimer.c Sebastian Andrzej Siewior 2019-09-04 279 } 5d2295f3a93b04 kernel/time/hrtimer.c Sebastian Andrzej Siewior 2019-09-04 280 :::::: The code at line 276 was first introduced by commit :::::: 5d2295f3a93b04986d069ebeaf5b07725f9096c1 hrtimer: Add a missing bracket and hide `migration_base' on !SMP :::::: TO: Sebastian Andrzej Siewior :::::: CC: Thomas Gleixner --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org