Hi Daniel, [auto build test WARNING on tip/perf/core] [also build test WARNING on v4.8-rc5 next-20160907] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] [Suggest to use git(>=2.9.0) format-patch --base=<commit> (or --base=auto for convenience) to record what (public, well-known) commit your patch series was built on] [Check https://git-scm.com/docs/git-format-patch for more information]
url: https://github.com/0day-ci/linux/commits/Binoy-Jayan/tracing-Deference-pointers-without-RCU-checks/20160907-205003 config: i386-randconfig-x003-201636 (attached as .config) compiler: gcc-6 (Debian 6.1.1-9) 6.1.1 20160705 reproduce: # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): kernel/trace/trace_events_hist.c: In function 'hist_field_comm': >> kernel/trace/trace_events_hist.c:85:9: warning: cast from pointer to integer >> of different size [-Wpointer-to-int-cast] return (u64) current->comm; ^ vim +85 kernel/trace/trace_events_hist.c 69 } 70 71 static u64 hist_field_log2(struct hist_field *hist_field, void *event) 72 { 73 u64 val = *(u64 *)(event + hist_field->field->offset); 74 75 return (u64) ilog2(roundup_pow_of_two(val)); 76 } 77 78 static u64 hist_field_cpu(struct hist_field *hist_field, void *event) 79 { 80 return (u64) smp_processor_id(); 81 } 82 83 static u64 hist_field_comm(struct hist_field *hist_field, void *event) 84 { > 85 return (u64) current->comm; 86 } 87 88 #define DEFINE_HIST_FIELD_FN(type) \ 89 static u64 hist_field_##type(struct hist_field *hist_field, void *event)\ 90 { \ 91 type *addr = (type *)(event + hist_field->field->offset); \ 92 \ 93 return (u64)(unsigned long)*addr; \ --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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