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Re: [PATCH v2 1/4] percpu_stats: Simple per-cpu statistics count helper functions

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Hi Waiman,

[auto build test ERROR on ext4/dev]
[also build test ERROR on v4.6-rc2 next-20160408]
[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/Waiman-Long/ext4-Improve-parallel-I-O-performance-on-NVDIMM/20160409-002128
base:   https://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4.git dev
config: alpha-defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=alpha 

Note: the linux-review/Waiman-Long/ext4-Improve-parallel-I-O-performance-on-NVDIMM/20160409-002128 HEAD 712a939b92b9178cb79df4050bba8e6b1d03ca63 builds fine.
      It only hurts bisectibility.

All errors (new ones prefixed by >>):

   In file included from lib/percpu_stats.c:5:0:
   include/linux/percpu_stats.h: In function 'percpu_stats_add':
>> include/linux/percpu_stats.h:29:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror=implicit-function-declaration]
     this_cpu_add(pcs->stats[stat], cnt);
     ^
>> include/linux/percpu_stats.h:29:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror=implicit-function-declaration]
   cc1: some warnings being treated as errors

vim +/raw_local_irq_save +29 include/linux/percpu_stats.h

    23	 * @cnt:  The value to be added to the statistics count
    24	 */
    25	static inline void
    26	percpu_stats_add(struct percpu_stats *pcs, int stat, int cnt)
    27	{
    28		BUG_ON((unsigned int)stat >= pcs->nstats);
  > 29		this_cpu_add(pcs->stats[stat], cnt);
    30	}
    31	
    32	static inline void percpu_stats_inc(struct percpu_stats *pcs, int stat)

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

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[PATCH v2 0/4] ext4: Improve parallel I/O performance on NVDIMM Waiman Long <Waiman.Long@hpe.com> - 2016-04-08 18:20 +0200
  [PATCH v2 3/4] ext4: Pass in DIO_SKIP_DIO_COUNT flag if inode_dio_begin() called Waiman Long <Waiman.Long@hpe.com> - 2016-04-08 18:20 +0200
  [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit architectures Waiman Long <Waiman.Long@hpe.com> - 2016-04-08 18:20 +0200
    Re: [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit  architectures Tejun Heo <tj@kernel.org> - 2016-04-08 18:50 +0200
      Re: [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit architectures Waiman Long <waiman.long@hpe.com> - 2016-04-08 19:40 +0200
        Re: [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit  architectures Tejun Heo <tj@kernel.org> - 2016-04-08 19:50 +0200
          Re: [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit architectures Waiman Long <waiman.long@hpe.com> - 2016-04-08 20:50 +0200
            Re: [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit  architectures Tejun Heo <tj@kernel.org> - 2016-04-12 00:20 +0200
              Re: [PATCH v2 2/4] percpu_stats: Enable 64-bit counts in 32-bit architectures Waiman Long <waiman.long@hpe.com> - 2016-04-12 20:20 +0200
  [PATCH v2 1/4] percpu_stats: Simple per-cpu statistics count helper functions Waiman Long <Waiman.Long@hpe.com> - 2016-04-08 18:20 +0200
    Re: [PATCH v2 1/4] percpu_stats: Simple per-cpu statistics count  helper functions kbuild test robot <lkp@intel.com> - 2016-04-08 18:50 +0200
    Re: [PATCH v2 1/4] percpu_stats: Simple per-cpu statistics count  helper functions kbuild test robot <lkp@intel.com> - 2016-04-08 19:50 +0200

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