From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0B3E4210B for ; Fri, 13 May 2022 09:10:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1652433033; x=1683969033; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=Veu5m7iYXG6x7nYTAQ0GJ7hDoiNSOwM4QvNljALKRcc=; b=Wq0dqnV038Ydar0cUN7LF7ZJrFpJMsY8mzshuEbiSPOHznHse+o80xuq 3NbkOF2UN3EAKHlNOXcrUfWyEfYmCtPBLUMLa/OP9UHgcFCBwMnBEF9FL qL4o/3nga/jUamZmMVztUUCJKZAHDzhVRMFu3GKXO9t/8rM24MedQYuNb WZhK58qEQn+Ou41l237SHrwLNXW0eEMu6nvG8kAwcuGg5AdAuzC6hf0x+ vgDWZD6BfSJUVHEC2FYBrTofO3H45VFXIpeg6LKfKfzFtv28GJWnCG841 uzWIq/XZfFDHF6mD3wq4P91xKRCVS1XYeey8bGoJgleu976VLqt6wAD2Y g==; X-IronPort-AV: E=McAfee;i="6400,9594,10345"; a="270393449" X-IronPort-AV: E=Sophos;i="5.91,221,1647327600"; d="scan'208";a="270393449" Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 May 2022 02:10:32 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.91,221,1647327600"; d="scan'208";a="671260310" Received: from lkp-server01.sh.intel.com (HELO 5056e131ad90) ([10.239.97.150]) by fmsmga002.fm.intel.com with ESMTP; 13 May 2022 02:10:28 -0700 Received: from kbuild by 5056e131ad90 with local (Exim 4.95) (envelope-from ) id 1npRJb-000LZU-Do; Fri, 13 May 2022 09:10:27 +0000 Date: Fri, 13 May 2022 17:09:47 +0800 From: kernel test robot To: Josh Don , Ingo Molnar , Peter Zijlstra , Juri Lelli , Vincent Guittot Cc: llvm@lists.linux.dev, kbuild-all@lists.01.org, Dietmar Eggemann , Steven Rostedt , Ben Segall , Mel Gorman , Daniel Bristot de Oliveira , Valentin Schneider , linux-kernel@vger.kernel.org, Cruz Zhao , Tejun Heo , Josh Don Subject: Re: [PATCH] sched/core: add forced idle accounting for cgroups Message-ID: <202205131630.fQphKrzY-lkp@intel.com> References: <20220513005427.2507335-1-joshdon@google.com> Precedence: bulk X-Mailing-List: llvm@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220513005427.2507335-1-joshdon@google.com> Hi Josh, Thank you for the patch! Yet something to improve: [auto build test ERROR on tip/sched/core] [also build test ERROR on tip/master linux/master linus/master v5.18-rc6 next-20220512] [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] url: https://github.com/intel-lab-lkp/linux/commits/Josh-Don/sched-core-add-forced-idle-accounting-for-cgroups/20220513-085621 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 734387ec2f9d77b00276042b1fa7c95f48ee879d config: s390-randconfig-r003-20220512 (https://download.01.org/0day-ci/archive/20220513/202205131630.fQphKrzY-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 38189438b69ca27b4c6ce707c52dbd217583d046) 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 s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://github.com/intel-lab-lkp/linux/commit/21dca7763777c1985d6f5ac289e6e0c20d429d05 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Josh-Don/sched-core-add-forced-idle-accounting-for-cgroups/20220513-085621 git checkout 21dca7763777c1985d6f5ac289e6e0c20d429d05 # 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=s390 SHELL=/bin/bash 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 kernel/sched/build_utility.c:15: In file included from include/linux/sched/isolation.h:6: In file included from include/linux/tick.h:8: In file included from include/linux/clockchips.h:14: In file included from include/linux/clocksource.h:22: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:464:31: 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:477:61: 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/big_endian.h:37:59: note: expanded from macro '__le16_to_cpu' #define __le16_to_cpu(x) __swab16((__force __u16)(__le16)(x)) ^ include/uapi/linux/swab.h:102:54: note: expanded from macro '__swab16' #define __swab16(x) (__u16)__builtin_bswap16((__u16)(x)) ^ In file included from kernel/sched/build_utility.c:15: In file included from include/linux/sched/isolation.h:6: In file included from include/linux/tick.h:8: In file included from include/linux/clockchips.h:14: In file included from include/linux/clocksource.h:22: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:490:61: 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/big_endian.h:35:59: note: expanded from macro '__le32_to_cpu' #define __le32_to_cpu(x) __swab32((__force __u32)(__le32)(x)) ^ include/uapi/linux/swab.h:115:54: note: expanded from macro '__swab32' #define __swab32(x) (__u32)__builtin_bswap32((__u32)(x)) ^ In file included from kernel/sched/build_utility.c:15: In file included from include/linux/sched/isolation.h:6: In file included from include/linux/tick.h:8: In file included from include/linux/clockchips.h:14: In file included from include/linux/clocksource.h:22: In file included from arch/s390/include/asm/io.h:75: include/asm-generic/io.h:501:33: 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:511:59: 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:521:59: 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); ~~~~~~~~~~ ^ include/asm-generic/io.h:609:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:617:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:625:20: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] readsl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:634:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesb(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:643:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesw(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ include/asm-generic/io.h:652:21: warning: performing pointer arithmetic on a null pointer has undefined behavior [-Wnull-pointer-arithmetic] writesl(PCI_IOBASE + addr, buffer, count); ~~~~~~~~~~ ^ In file included from kernel/sched/build_utility.c:93: >> kernel/sched/core_sched.c:306:28: error: incomplete definition of type 'struct task_group' struct cfs_rq *cfs_rq = tg->cfs_rq[cpu]; ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:307:32: error: incomplete definition of type 'struct task_group' struct task_group *parent = tg->parent; ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:319:12: error: incomplete definition of type 'struct task_group' delta = tg->forceidle_sum_pending; ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:321:5: error: incomplete definition of type 'struct task_group' tg->forceidle_sum_pending = 0; ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:333:4: error: incomplete definition of type 'struct task_group' tg->forceidle_sum += delta; ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:334:8: error: incomplete definition of type 'struct task_group' parent->forceidle_sum_pending += delta; ~~~~~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:340:9: error: incomplete definition of type 'struct task_group' if (!tg->parent) { ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ In file included from kernel/sched/build_utility.c:93: kernel/sched/core_sched.c:353:12: error: incomplete definition of type 'struct task_group' return tg->forceidle_sum; ~~^ include/linux/sched.h:69:8: note: forward declaration of 'struct task_group' struct task_group; ^ 12 warnings and 8 errors generated. vim +306 kernel/sched/core_sched.c 303 304 void sched_core_rstat_flush(struct task_group *tg, int cpu) 305 { > 306 struct cfs_rq *cfs_rq = tg->cfs_rq[cpu]; 307 struct task_group *parent = tg->parent; 308 u64 delta, curr_sum; 309 310 /* root uses cpustat */ 311 if (!parent) 312 return; 313 314 /* 315 * Note: cgroup_rstat_lock protects cfs_rq->forceidle_sum_prev and 316 * tg->{forceidle_sum, forceidle_sum_pending}. 317 */ 318 319 delta = tg->forceidle_sum_pending; 320 if (delta) 321 tg->forceidle_sum_pending = 0; 322 323 /* rq lock not held; value may change concurrently */ 324 curr_sum = READ_ONCE(cfs_rq->forceidle_sum); 325 if (curr_sum != cfs_rq->forceidle_sum_prev) { 326 delta += curr_sum - cfs_rq->forceidle_sum_prev; 327 cfs_rq->forceidle_sum_prev = curr_sum; 328 } 329 330 if (!delta) 331 return; 332 333 tg->forceidle_sum += delta; 334 parent->forceidle_sum_pending += delta; 335 } 336 -- 0-DAY CI Kernel Test Service https://01.org/lkp