Re: [PATCH v5 7/7] sched/fair: Fair server interface

[kernel test robot]

Hi Daniel,

kernel test robot noticed the following build warnings:

[auto build test WARNING on tip/sched/core]
[also build test WARNING on tip/master linus/master next-20231103]
[cannot apply to tip/auto-latest v6.6]
[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/Daniel-Bristot-de-Oliveira/sched-Unify-runtime-accounting-across-classes/20231104-201952
base:   tip/sched/core
patch link:    https://lore.kernel.org/r/26adad2378c8b15533e4f6216c2863341e587f57.1699095159.git.bristot%40kernel.org
patch subject: [PATCH v5 7/7] sched/fair: Fair server interface
config: i386-buildonly-randconfig-001-20231104 (https://download.01.org/0day-ci/archive/20231104/202311042329.PB1gTIL4-lkp@xxxxxxxxx/config)
compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231104/202311042329.PB1gTIL4-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202311042329.PB1gTIL4-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

   In file included from kernel/sched/build_utility.c:72:
>> kernel/sched/debug.c:342:57: warning: integer overflow in expression of type 'long int' results in '-100663296' [-Woverflow]
     342 | static unsigned long fair_server_period_max = (1 << 22) * NSEC_PER_USEC; /* ~4 seconds */
         |                                                         ^


vim +342 kernel/sched/debug.c

   341	
 > 342	static unsigned long fair_server_period_max = (1 << 22) * NSEC_PER_USEC; /* ~4 seconds */
   343	static unsigned long fair_server_period_min = (100) * NSEC_PER_USEC;     /* 100 us */
   344	

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