Re: [PATCH] perf/x86/intel: Fix unwind errors from PEBS entries (mk-II)

[kbuild test robot]

Hi Peter,

I love your patch! Yet something to improve:

[auto build test ERROR on tip/perf/core]
[also build test ERROR on v4.18-rc5 next-20180719]
[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/Peter-Zijlstra/perf-x86-intel-Fix-unwind-errors-from-PEBS-entries-mk-II/20180720-061741
config: powerpc-allnoconfig (attached as .config)
compiler: powerpc-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
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
        GCC_VERSION=7.2.0 make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   In file included from include/linux/perf_event.h:17:0,
                    from include/linux/trace_events.h:10,
                    from include/trace/syscall.h:7,
                    from arch/powerpc/kernel/ptrace.c:32:
>> include/uapi/linux/perf_event.h:147:39: error: left shift count >= width of 
>> type [-Werror=shift-count-overflow]
     __PERF_SAMPLE_CALLCHAIN_EARLY  = 1UL << 63,
                                          ^~
   cc1: all warnings being treated as errors

vim +147 include/uapi/linux/perf_event.h

   118  
   119  /*
   120   * Bits that can be set in attr.sample_type to request information
   121   * in the overflow packets.
   122   */
   123  enum perf_event_sample_format {
   124          PERF_SAMPLE_IP                          = 1U << 0,
   125          PERF_SAMPLE_TID                         = 1U << 1,
   126          PERF_SAMPLE_TIME                        = 1U << 2,
   127          PERF_SAMPLE_ADDR                        = 1U << 3,
   128          PERF_SAMPLE_READ                        = 1U << 4,
   129          PERF_SAMPLE_CALLCHAIN                   = 1U << 5,
   130          PERF_SAMPLE_ID                          = 1U << 6,
   131          PERF_SAMPLE_CPU                         = 1U << 7,
   132          PERF_SAMPLE_PERIOD                      = 1U << 8,
   133          PERF_SAMPLE_STREAM_ID                   = 1U << 9,
   134          PERF_SAMPLE_RAW                         = 1U << 10,
   135          PERF_SAMPLE_BRANCH_STACK                = 1U << 11,
   136          PERF_SAMPLE_REGS_USER                   = 1U << 12,
   137          PERF_SAMPLE_STACK_USER                  = 1U << 13,
   138          PERF_SAMPLE_WEIGHT                      = 1U << 14,
   139          PERF_SAMPLE_DATA_SRC                    = 1U << 15,
   140          PERF_SAMPLE_IDENTIFIER                  = 1U << 16,
   141          PERF_SAMPLE_TRANSACTION                 = 1U << 17,
   142          PERF_SAMPLE_REGS_INTR                   = 1U << 18,
   143          PERF_SAMPLE_PHYS_ADDR                   = 1U << 19,
   144  
   145          PERF_SAMPLE_MAX = 1U << 20,             /* non-ABI */
   146  
 > 147          __PERF_SAMPLE_CALLCHAIN_EARLY           = 1UL << 63,
   148  };
   149  

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

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