linux-kernel - Re: [PATCH v3 3/5] sched/fair: Switch to task based throttle model

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Message-ID: <20250717035243.GC32@bytedance>
Date: Thu, 17 Jul 2025 11:52:43 +0800
From: Aaron Lu <ziqianlu@...edance.com>
To: kernel test robot <lkp@...el.com>
Cc: Valentin Schneider <vschneid@...hat.com>,
	Ben Segall <bsegall@...gle.com>,
	K Prateek Nayak <kprateek.nayak@....com>,
	Peter Zijlstra <peterz@...radead.org>,
	Chengming Zhou <chengming.zhou@...ux.dev>,
	Josh Don <joshdon@...gle.com>, Ingo Molnar <mingo@...hat.com>,
	Vincent Guittot <vincent.guittot@...aro.org>,
	Xi Wang <xii@...gle.com>, oe-kbuild-all@...ts.linux.dev,
	linux-kernel@...r.kernel.org, Juri Lelli <juri.lelli@...hat.com>,
	Dietmar Eggemann <dietmar.eggemann@....com>,
	Steven Rostedt <rostedt@...dmis.org>, Mel Gorman <mgorman@...e.de>,
	Chuyi Zhou <zhouchuyi@...edance.com>,
	Jan Kiszka <jan.kiszka@...mens.com>,
	Florian Bezdeka <florian.bezdeka@...mens.com>,
	Songtang Liu <liusongtang@...edance.com>
Subject: Re: [PATCH v3 3/5] sched/fair: Switch to task based throttle model

On Wed, Jul 16, 2025 at 11:20:55PM +0800, kernel test robot wrote:
> Hi Aaron,
> 
> kernel test robot noticed the following build warnings:
> 
> [auto build test WARNING on tip/sched/core]
> [also build test WARNING on next-20250716]
> [cannot apply to linus/master v6.16-rc6]
> [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/Aaron-Lu/sched-fair-Add-related-data-structure-for-task-based-throttle/20250715-152307
> base:   tip/sched/core
> patch link:    https://lore.kernel.org/r/20250715071658.267-4-ziqianlu%40bytedance.com
> patch subject: [PATCH v3 3/5] sched/fair: Switch to task based throttle model
> config: xtensa-randconfig-r121-20250716 (https://download.01.org/0day-ci/archive/20250716/202507162238.qiw7kyu0-lkp@intel.com/config)
> compiler: xtensa-linux-gcc (GCC) 8.5.0
> reproduce: (https://download.01.org/0day-ci/archive/20250716/202507162238.qiw7kyu0-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 <lkp@...el.com>
> | Closes: https://lore.kernel.org/oe-kbuild-all/202507162238.qiw7kyu0-lkp@intel.com/
> 
> sparse warnings: (new ones prefixed by >>)
>    kernel/sched/core.c: note: in included file (through arch/xtensa/include/asm/bitops.h, include/linux/bitops.h, include/linux/thread_info.h, ...):
>    arch/xtensa/include/asm/processor.h:105:2: sparse: sparse: Unsupported xtensa ABI
>    arch/xtensa/include/asm/processor.h:135:2: sparse: sparse: Unsupported Xtensa ABI
>    kernel/sched/core.c: note: in included file:
> >> kernel/sched/sched.h:741:44: sparse: sparse: dubious one-bit signed bitfield

Same problem as last report.

I've downloaded this compiler from kernel.org and confirmed there is no
such warnings after using bool.

Thanks,
Aaron