Re: [PATCH] sched/fair: make CFS bandwidth slice per cpu group

From: kbuild test robot
Date: Mon Apr 30 2018 - 20:58:27 EST

Hi Cong,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/sched/core]
[also build test ERROR on v4.17-rc3 next-20180430]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

config: i386-randconfig-x003-201817 (attached as .config)
compiler: gcc-7 (Debian 7.3.0-16) 7.3.0
# save the attached .config to linux build tree
make ARCH=i386

All errors (new ones prefixed by >>):

In file included from kernel/sched/debug.c:12:0:
kernel/sched/sched.h: In function 'sched_default_cfs_bandwidth_slice':
>> kernel/sched/sched.h:438:14: error: 'sysctl_sched_cfs_bandwidth_slice' undeclared (first use in this function); did you mean 'sched_default_cfs_bandwidth_slice'?
return (u64)sysctl_sched_cfs_bandwidth_slice * NSEC_PER_USEC;
kernel/sched/sched.h:438:14: note: each undeclared identifier is reported only once for each function it appears in

vim +438 kernel/sched/sched.h

436 static inline u64 sched_default_cfs_bandwidth_slice(void)
437 {
> 438 return (u64)sysctl_sched_cfs_bandwidth_slice * NSEC_PER_USEC;
439 }

0-DAY kernel test infrastructure Open Source Technology Center Intel Corporation

Attachment: .config.gz
Description: application/gzip