[zen-kernel-zen-kernel:5.14/cacule 1/2] kernel/sched/fair.c:11865:24: warning: variable 'cfs_rqb' set but not used

[zen-kernel-zen-kernel:5.14/cacule 1/2] kernel/sched/fair.c:11865:24: warning: variable 'cfs_rqb' set but not used

[kernel test robot]

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tree:   https://github.com/zen-kernel/zen-kernel 5.14/cacule
head:   4430be30ae5bf7d608eb292aa8680a2dc82ca847
commit: 9e3f9e4d524cfe1d20d03a731930e4d6ebacbfd8 [1/2] CacULE 5.14
config: ia64-allmodconfig (attached as .config)
compiler: ia64-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://github.com/zen-kernel/zen-kernel/commit/9e3f9e4d524cfe1d20d03a731930e4d6ebacbfd8
        git remote add zen-kernel-zen-kernel https://github.com/zen-kernel/zen-kernel
        git fetch --no-tags zen-kernel-zen-kernel 5.14/cacule
        git checkout 9e3f9e4d524cfe1d20d03a731930e4d6ebacbfd8
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=ia64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

   kernel/sched/fair.c:11849:6: warning: no previous prototype for 'task_vruntime_update' [-Wmissing-prototypes]
   11849 | void task_vruntime_update(struct rq *rq, struct task_struct *p, bool in_fi)
         |      ^~~~~~~~~~~~~~~~~~~~
   kernel/sched/fair.c: In function 'cfs_prio_less':
>> kernel/sched/fair.c:11865:24: warning: variable 'cfs_rqb' set but not used [-Wunused-but-set-variable]
   11865 |         struct cfs_rq *cfs_rqb;
         |                        ^~~~~~~
>> kernel/sched/fair.c:11864:24: warning: variable 'cfs_rqa' set but not used [-Wunused-but-set-variable]
   11864 |         struct cfs_rq *cfs_rqa;
         |                        ^~~~~~~


vim +/cfs_rqb +11865 kernel/sched/fair.c

c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11858) 
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11859) bool cfs_prio_less(struct task_struct *a, struct task_struct *b, bool in_fi)
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11860) {
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11861) 	struct rq *rq = task_rq(a);
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11862) 	struct sched_entity *sea = &a->se;
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11863) 	struct sched_entity *seb = &b->se;
c6047c2e3af68d Joel Fernandes (Google  2020-11-17 @11864) 	struct cfs_rq *cfs_rqa;
c6047c2e3af68d Joel Fernandes (Google  2020-11-17 @11865) 	struct cfs_rq *cfs_rqb;
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11866) 	s64 delta;
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11867) 
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11868) 	SCHED_WARN_ON(task_rq(b)->core != rq->core);
c6047c2e3af68d Joel Fernandes (Google  2020-11-17  11869) 

:::::: The code at line 11865 was first introduced by commit
:::::: c6047c2e3af68dae23ad884249e0d42ff28d2d1b sched/fair: Snapshot the min_vruntime of CPUs on force idle

:::::: TO: Joel Fernandes (Google) <joel@joelfernandes.org>
:::::: CC: Peter Zijlstra <peterz@infradead.org>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org

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