[rcu:dev.2021.08.25a 98/115] kernel/time/hrtimer.c:1631:6: warning: no previous prototype for 'hrtimer_interrupt_get_debug'

From: kernel test robot
Date: Thu Sep 02 2021 - 20:05:57 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git dev.2021.08.25a
head: 2ba1d046d9bc5b4496027d120e3ddcdfbb2fe9f4
commit: cf9fcdcca72481c55d41aa2fbe276a79db5f62ec [98/115] EXP cpu: Print out hrtimer_interrupt() information
config: powerpc-allyesconfig (attached as .config)
compiler: powerpc64-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://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=cf9fcdcca72481c55d41aa2fbe276a79db5f62ec
git remote add rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git
git fetch --no-tags rcu dev.2021.08.25a
git checkout cf9fcdcca72481c55d41aa2fbe276a79db5f62ec
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=powerpc

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

All warnings (new ones prefixed by >>):

kernel/time/hrtimer.c:120:35: warning: initialized field overwritten [-Woverride-init]
120 | [CLOCK_REALTIME] = HRTIMER_BASE_REALTIME,
| ^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:120:35: note: (near initialization for 'hrtimer_clock_to_base_table[0]')
kernel/time/hrtimer.c:121:35: warning: initialized field overwritten [-Woverride-init]
121 | [CLOCK_MONOTONIC] = HRTIMER_BASE_MONOTONIC,
| ^~~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:121:35: note: (near initialization for 'hrtimer_clock_to_base_table[1]')
kernel/time/hrtimer.c:122:35: warning: initialized field overwritten [-Woverride-init]
122 | [CLOCK_BOOTTIME] = HRTIMER_BASE_BOOTTIME,
| ^~~~~~~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:122:35: note: (near initialization for 'hrtimer_clock_to_base_table[7]')
kernel/time/hrtimer.c:123:35: warning: initialized field overwritten [-Woverride-init]
123 | [CLOCK_TAI] = HRTIMER_BASE_TAI,
| ^~~~~~~~~~~~~~~~
kernel/time/hrtimer.c:123:35: note: (near initialization for 'hrtimer_clock_to_base_table[11]')
>> kernel/time/hrtimer.c:1631:6: warning: no previous prototype for 'hrtimer_interrupt_get_debug' [-Wmissing-prototypes]
1631 | void hrtimer_interrupt_get_debug(int cpu, unsigned short *nr_hangs, ktime_t *delta)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~


vim +/hrtimer_interrupt_get_debug +1631 kernel/time/hrtimer.c

1630
> 1631 void hrtimer_interrupt_get_debug(int cpu, unsigned short *nr_hangs, ktime_t *delta)
1632 {
1633 *nr_hangs = READ_ONCE(per_cpu(hrtimer_bases, cpu).nr_hangs);
1634 *delta = READ_ONCE(per_cpu(hrtimer_interrupt_delta, cpu));
1635 }
1636

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

Attachment: .config.gz
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