linux-kernel - Re: [PATCH v3 8/8] sched/fair: Add latency list

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 10 Sep 2022 00:07:54 +0800
From:   kernel test robot <lkp@...el.com>
To:     Vincent Guittot <vincent.guittot@...aro.org>, mingo@...hat.com,
        juri.lelli@...hat.com, dietmar.eggemann@....com,
        rostedt@...dmis.org, bsegall@...gle.com, mgorman@...e.de,
        bristot@...hat.com, vschneid@...hat.com,
        linux-kernel@...r.kernel.org, parth@...ux.ibm.com
Cc:     kbuild-all@...ts.01.org, qais.yousef@....com,
        chris.hyser@...cle.com, valentin.schneider@....com,
        patrick.bellasi@...bug.net, David.Laight@...lab.com,
        pjt@...gle.com, pavel@....cz, tj@...nel.org, qperret@...gle.com,
        tim.c.chen@...ux.intel.com, joshdon@...gle.com,
        Vincent Guittot <vincent.guittot@...aro.org>
Subject: Re: [PATCH v3 8/8] sched/fair: Add latency list

Hi Vincent,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/sched/core]
[also build test WARNING on linus/master v6.0-rc4 next-20220909]
[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/Vincent-Guittot/Add-latency-priority-for-CFS-class/20220909-210655
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git fb04563d1cae6f361892b4a339ad92100b1eb0d0
config: m68k-allyesconfig (https://download.01.org/0day-ci/archive/20220909/202209092349.DjjxV7GB-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.1.0
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://github.com/intel-lab-lkp/linux/commit/4bdc6637b9aab44577b65686a745a14b325f4c23
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review Vincent-Guittot/Add-latency-priority-for-CFS-class/20220909-210655
        git checkout 4bdc6637b9aab44577b65686a745a14b325f4c23
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash kernel/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> kernel/sched/fair.c:727:22: warning: no previous prototype for '__pick_first_latency' [-Wmissing-prototypes]
     727 | struct sched_entity *__pick_first_latency(struct cfs_rq *cfs_rq)
         |                      ^~~~~~~~~~~~~~~~~~~~
   kernel/sched/fair.c:742:5: warning: no previous prototype for 'sched_update_scaling' [-Wmissing-prototypes]
     742 | int sched_update_scaling(void)
         |     ^~~~~~~~~~~~~~~~~~~~


vim +/__pick_first_latency +727 kernel/sched/fair.c

   726	
 > 727	struct sched_entity *__pick_first_latency(struct cfs_rq *cfs_rq)
   728	{
   729		struct rb_node *left = rb_first_cached(&cfs_rq->latency_timeline);
   730	
   731		if (!left)
   732			return NULL;
   733	
   734		return __latency_node_2_se(left);
   735	}
   736	

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp