linux-kernel - Re: [PATCH 5/5] arm64: perf: Add cap_user_time

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Date:   Wed, 13 May 2020 00:59:51 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Peter Zijlstra <peterz@...radead.org>,
        Will Deacon <will@...nel.org>, Marc Zyngier <maz@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Catalin Marinas <catalin.marinas@....com>,
        Leo Yan <leo.yan@...aro.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, mingo@...hat.com,
        acme@...nel.org, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, daniel.lezcano@...aro.org, tglx@...utronix.de,
        sboyd@...eaurora.org
Subject: Re: [PATCH 5/5] arm64: perf: Add cap_user_time_short

Hi Peter,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/perf/core]
[also build test ERROR on arm64/for-next/core arm-perf/for-next/perf linus/master v5.7-rc5 next-20200512]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Peter-Zijlstra/arm64-perf-Proper-cap_user_time-support/20200512-205141
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git 059c6d68cfc5f85ba3ab71d71a6de380016f7936
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=arm64 

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

All errors (new ones prefixed by >>):

arch/arm64/kernel/perf_event.c: In function 'arch_perf_update_userpage':
>> arch/arm64/kernel/perf_event.c:1187:11: error: 'struct perf_event_mmap_page' has no member named 'time_cycle'; did you mean 'time_cycles'?
1187 |   userpg->time_cycle = rd->epoch_cyc;
|           ^~~~~~~~~~
|           time_cycles
arch/arm64/kernel/perf_event.c:1207:12: error: 'struct perf_event_mmap_page' has no member named 'shift'
1207 |  if (userpg->shift == 32) {
|            ^~
arch/arm64/kernel/perf_event.c:1208:9: error: 'struct perf_event_mmap_page' has no member named 'shift'
1208 |   userpg->shift = 31;
|         ^~

vim +1187 arch/arm64/kernel/perf_event.c

  1167	
  1168	void arch_perf_update_userpage(struct perf_event *event,
  1169				       struct perf_event_mmap_page *userpg, u64 now)
  1170	{
  1171		struct clock_read_data *rd;
  1172		unsigned int seq;
  1173	
  1174		userpg->cap_user_time = 0;
  1175		userpg->cap_user_time_zero = 0;
  1176		userpg->cap_user_time_short = 0;
  1177	
  1178		do {
  1179			rd = sched_clock_read_begin(&seq);
  1180	
  1181			if (rd->read_sched_clock != arch_timer_read_counter)
  1182				return;
  1183	
  1184			userpg->time_mult = rd->mult;
  1185			userpg->time_shift = rd->shift;
  1186			userpg->time_zero = rd->epoch_ns;
> 1187			userpg->time_cycle = rd->epoch_cyc;

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

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