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: um-x86_64_defconfig (attached as .config) reproduce: # save the attached .config to linux build tree make ARCH=um SUBARCH=x86_64 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 error/warnings (new ones prefixed by >>): In file included from arch/um/include/generated/asm/percpu.h:1:0, from include/linux/percpu.h:12, from include/linux/percpu_stats.h:7, from lib/percpu_stats.c:5: include/linux/percpu_stats.h: In function 'percpu_stats_add': >> include/asm-generic/percpu.h:120:2: error: implicit declaration of function 'raw_local_irq_save' [-Werror=implicit-function-declaration] raw_local_irq_save(__flags); \ ^ >> include/asm-generic/percpu.h:322:34: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_add_1(pcp, val) this_cpu_generic_to_op(pcp, val, +=) ^ >> include/linux/percpu-defs.h:364:11: note: in expansion of macro 'this_cpu_add_1' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ include/linux/percpu-defs.h:496:33: note: in expansion of macro '__pcpu_size_call' #define this_cpu_add(pcp, val) __pcpu_size_call(this_cpu_add_, pcp, val) ^ >> include/linux/percpu_stats.h:29:2: note: in expansion of macro 'this_cpu_add' this_cpu_add(pcs->stats[stat], cnt); ^ >> include/asm-generic/percpu.h:122:2: error: implicit declaration of function 'raw_local_irq_restore' [-Werror=implicit-function-declaration] raw_local_irq_restore(__flags); \ ^ >> include/asm-generic/percpu.h:322:34: note: in expansion of macro 'this_cpu_generic_to_op' #define this_cpu_add_1(pcp, val) this_cpu_generic_to_op(pcp, val, +=) ^ >> include/linux/percpu-defs.h:364:11: note: in expansion of macro 'this_cpu_add_1' case 1: stem##1(variable, __VA_ARGS__);break; \ ^ include/linux/percpu-defs.h:496:33: note: in expansion of macro '__pcpu_size_call' #define this_cpu_add(pcp, val) __pcpu_size_call(this_cpu_add_, pcp, val) ^ >> include/linux/percpu_stats.h:29:2: note: in expansion of macro 'this_cpu_add' this_cpu_add(pcs->stats[stat], cnt); ^ cc1: some warnings being treated as errors vim +/raw_local_irq_save +120 include/asm-generic/percpu.h eba117889a Tejun Heo 2014-06-17 114 __ret; \ 9c28278a24 Tejun Heo 2014-06-17 115 }) 9c28278a24 Tejun Heo 2014-06-17 116 eba117889a Tejun Heo 2014-06-17 117 #define this_cpu_generic_to_op(pcp, val, op) \ 9c28278a24 Tejun Heo 2014-06-17 118 do { \ eba117889a Tejun Heo 2014-06-17 119 unsigned long __flags; \ eba117889a Tejun Heo 2014-06-17 @120 raw_local_irq_save(__flags); \ 9c28278a24 Tejun Heo 2014-06-17 121 *raw_cpu_ptr(&(pcp)) op val; \ eba117889a Tejun Heo 2014-06-17 @122 raw_local_irq_restore(__flags); \ 9c28278a24 Tejun Heo 2014-06-17 123 } while (0) 9c28278a24 Tejun Heo 2014-06-17 124 eba117889a Tejun Heo 2014-06-17 125 #define this_cpu_generic_add_return(pcp, val) \ :::::: The code at line 120 was first introduced by commit :::::: eba117889ac444bea6e8270049cbaeed48169889 percpu: preffity percpu header files :::::: TO: Tejun Heo <tj@xxxxxxxxxx> :::::: CC: Tejun Heo <tj@xxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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