Hi David, [auto build test ERROR on tip/perf/core] [also build test ERROR on v4.10-rc1 next-20161224] [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/David-Carrillo-Cisneros/perf-core-only-check-cpuctx-with-cgroup-events-during-cgroup-switch/20161231-103433 config: i386-randconfig-x005-201652 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: # save the attached .config to linux build tree make ARCH=i386 All error/warnings (new ones prefixed by >>): In file included from include/asm-generic/percpu.h:6:0, from arch/x86/include/asm/percpu.h:542, from arch/x86/include/asm/preempt.h:5, from include/linux/preempt.h:59, from include/linux/spinlock.h:50, from include/linux/wait.h:8, from include/linux/fs.h:5, from kernel/events/core.c:12: kernel/events/core.c: In function 'perf_event_init_all_cpus': >> kernel/events/core.c:10587:27: error: 'cgrp_cpuctx_list' undeclared (first >> use in this function) INIT_LIST_HEAD(&per_cpu(cgrp_cpuctx_list, cpu)); ^ include/linux/percpu-defs.h:206:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^~~ include/linux/percpu-defs.h:250:47: note: in expansion of macro 'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); }) ^~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:256:29: note: in expansion of macro 'per_cpu_ptr' #define per_cpu(var, cpu) (*per_cpu_ptr(&(var), cpu)) ^~~~~~~~~~~ >> kernel/events/core.c:10587:19: note: in expansion of macro 'per_cpu' INIT_LIST_HEAD(&per_cpu(cgrp_cpuctx_list, cpu)); ^~~~~~~ kernel/events/core.c:10587:27: note: each undeclared identifier is reported only once for each function it appears in INIT_LIST_HEAD(&per_cpu(cgrp_cpuctx_list, cpu)); ^ include/linux/percpu-defs.h:206:47: note: in definition of macro '__verify_pcpu_ptr' const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \ ^~~ include/linux/percpu-defs.h:250:47: note: in expansion of macro 'VERIFY_PERCPU_PTR' #define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); }) ^~~~~~~~~~~~~~~~~ include/linux/percpu-defs.h:256:29: note: in expansion of macro 'per_cpu_ptr' #define per_cpu(var, cpu) (*per_cpu_ptr(&(var), cpu)) ^~~~~~~~~~~ >> kernel/events/core.c:10587:19: note: in expansion of macro 'per_cpu' INIT_LIST_HEAD(&per_cpu(cgrp_cpuctx_list, cpu)); ^~~~~~~ vim +/cgrp_cpuctx_list +10587 kernel/events/core.c 10581 mutex_init(&swhash->hlist_mutex); 10582 INIT_LIST_HEAD(&per_cpu(active_ctx_list, cpu)); 10583 10584 INIT_LIST_HEAD(&per_cpu(pmu_sb_events.list, cpu)); 10585 raw_spin_lock_init(&per_cpu(pmu_sb_events.lock, cpu)); 10586 10587 INIT_LIST_HEAD(&per_cpu(cgrp_cpuctx_list, cpu)); 10588 INIT_LIST_HEAD(&per_cpu(sched_cb_list, cpu)); 10589 } 10590 } --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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