linux-kernel - Re: [PATCH] perf/x86/pebs: catch all PEBS overflow conditions

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Date:	Fri, 11 Mar 2016 00:21:01 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Stephane Eranian <eranian@...gle.com>
Cc:	kbuild-all@...org, linux-kernel@...r.kernel.org, acme@...hat.com,
	peterz@...radead.org, mingo@...e.hu, ak@...ux.intel.com,
	kan.liang@...el.com, jolsa@...hat.com, namhyung@...nel.org,
	adrian.hunter@...el.com
Subject: Re: [PATCH] perf/x86/pebs: catch all PEBS overflow conditions

Hi Stephane,

[auto build test ERROR on next-20160310]
[cannot apply to tip/x86/core v4.5-rc7 v4.5-rc6 v4.5-rc5 v4.5-rc7]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url:    https://github.com/0day-ci/linux/commits/Stephane-Eranian/perf-x86-pebs-catch-all-PEBS-overflow-conditions/20160311-001126
config: i386-tinyconfig (attached as .config)
reproduce:
        # save the attached .config to linux build tree
        make ARCH=i386 

All errors (new ones prefixed by >>):

   arch/x86/events//intel/core.c: In function 'intel_pmu_handle_irq':
>> arch/x86/events//intel/core.c:1910:3: error: 'orig_status' undeclared (first use in this function)
      orig_status |= 1ULL << 62;
      ^
   arch/x86/events//intel/core.c:1910:3: note: each undeclared identifier is reported only once for each function it appears in

vim +/orig_status +1910 arch/x86/events//intel/core.c

  1904			 * in the for_each_bit_set() loop for regular samples below.
  1905			 */
  1906			status &= ~cpuc->pebs_enabled;
  1907			status &= x86_pmu.intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI;
  1908	
  1909			/* make sure bit 62 is acked in any case */
> 1910			orig_status |= 1ULL << 62;
  1911		}
  1912	
  1913		/*

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

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