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SubjectRe: [PATCH v3] include: linux: Reorganize timekeeping and ktime headers
Hi Carlos,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on tip/timers/core]
[also build test WARNING on kvmarm/next abelloni/rtc-next sound/for-next soc/for-next linus/master tip/x86/core v5.14-rc2 next-20210722]
[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]

url: https://github.com/0day-ci/linux/commits/Carlos-Bilbao/include-linux-Reorganize-timekeeping-and-ktime-headers/20210722-233301
base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 2d0a9eb23ccfdf11308bec6db0bc007585d919d2
config: ia64-buildonly-randconfig-r004-20210722 (attached as .config)
compiler: ia64-linux-gcc (GCC) 10.3.0
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/0day-ci/linux/commit/e35011219261f218feeaea55c97d4d583d9747a9
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Carlos-Bilbao/include-linux-Reorganize-timekeeping-and-ktime-headers/20210722-233301
git checkout e35011219261f218feeaea55c97d4d583d9747a9
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 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 >>):

arch/ia64/kernel/time.c: In function 'timer_interrupt':
arch/ia64/kernel/time.c:190:3: error: implicit declaration of function 'legacy_timer_tick' [-Werror=implicit-function-declaration]
190 | legacy_timer_tick(smp_processor_id() == time_keeper_id);
| ^~~~~~~~~~~~~~~~~
arch/ia64/kernel/time.c: At top level:
arch/ia64/kernel/time.c:259:6: warning: no previous prototype for 'ia64_init_itm' [-Wmissing-prototypes]
259 | void ia64_init_itm(void)
| ^~~~~~~~~~~~~
>> arch/ia64/kernel/time.c:390:6: warning: no previous prototype for 'read_persistent_clock64' [-Wmissing-prototypes]
390 | void read_persistent_clock64(struct timespec64 *ts)
| ^~~~~~~~~~~~~~~~~~~~~~~
arch/ia64/kernel/time.c:396:1: warning: no previous prototype for 'time_init' [-Wmissing-prototypes]
396 | time_init (void)
| ^~~~~~~~~
cc1: some warnings being treated as errors
--
>> kernel/time/tick-legacy.c:25:6: warning: no previous prototype for 'legacy_timer_tick' [-Wmissing-prototypes]
25 | void legacy_timer_tick(unsigned long ticks)
| ^~~~~~~~~~~~~~~~~


vim +/legacy_timer_tick +25 kernel/time/tick-legacy.c

b3550164a19d62 Arnd Bergmann 2020-09-24 12
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 13 /**
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 14 * legacy_timer_tick() - advances the timekeeping infrastructure
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 15 * @ticks: number of ticks, that have elapsed since the last call.
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 16 *
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 17 * This is used by platforms that have not been converted to
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 18 * generic clockevents.
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 19 *
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 20 * If 'ticks' is zero, the CPU is not handling timekeeping, so
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 21 * only perform process accounting and profiling.
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 22 *
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 23 * Must be called with interrupts disabled.
56cc7b8acfb7c7 Arnd Bergmann 2020-09-24 24 */
b3550164a19d62 Arnd Bergmann 2020-09-24 @25 void legacy_timer_tick(unsigned long ticks)

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