linux-kernel - Re: [PATCH V6] perf/x86: add sysfs entry to freeze counter on SMI

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Date:   Fri, 12 May 2017 23:00:40 +0800
From:   kbuild test robot <lkp@...el.com>
To:     kan.liang@...el.com
Cc:     kbuild-all@...org, peterz@...radead.org, tglx@...utronix.de,
        mingo@...hat.com, linux-kernel@...r.kernel.org, bp@...en8.de,
        acme@...nel.org, eranian@...gle.com, jolsa@...nel.org,
        ak@...ux.intel.com, Kan Liang <Kan.liang@...el.com>
Subject: Re: [PATCH V6] perf/x86: add sysfs entry to freeze counter on SMI

Hi Kan,

[auto build test WARNING on tip/x86/core]
[also build test WARNING on v4.11 next-20170512]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/kan-liang-intel-com/perf-x86-add-sysfs-entry-to-freeze-counter-on-SMI/20170512-223452
config: i386-tinyconfig (attached as .config)
compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All warnings (new ones prefixed by >>):

   arch/x86/events/intel/core.c: In function 'freeze_on_smi_show':
>> arch/x86/events/intel/core.c:3581:24: warning: format '%d' expects argument of type 'int', but argument 3 has type 'long unsigned int' [-Wformat=]
     return sprintf(buf, "%d\n", x86_pmu.attr_freeze_on_smi);
                           ^

vim +3581 arch/x86/events/intel/core.c

  3565		EVENT_PTR(mem_ld_hsw),
  3566		EVENT_PTR(mem_st_hsw),
  3567		EVENT_PTR(td_slots_issued),
  3568		EVENT_PTR(td_slots_retired),
  3569		EVENT_PTR(td_fetch_bubbles),
  3570		EVENT_PTR(td_total_slots),
  3571		EVENT_PTR(td_total_slots_scale),
  3572		EVENT_PTR(td_recovery_bubbles),
  3573		EVENT_PTR(td_recovery_bubbles_scale),
  3574		NULL
  3575	};
  3576	
  3577	static ssize_t freeze_on_smi_show(struct device *cdev,
  3578					  struct device_attribute *attr,
  3579					  char *buf)
  3580	{
> 3581		return sprintf(buf, "%d\n", x86_pmu.attr_freeze_on_smi);
  3582	}
  3583	
  3584	static DEFINE_MUTEX(freeze_on_smi_mutex);
  3585	
  3586	static ssize_t freeze_on_smi_store(struct device *cdev,
  3587					   struct device_attribute *attr,
  3588					   const char *buf, size_t count)
  3589	{

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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