Messages in this thread | | | Date | Tue, 17 Sep 2019 23:22:50 +0800 | From | kbuild test robot <> | Subject | Re: [PATCH bpf-next 1/5] perf/core: Add PERF_FORMAT_LOST read_format |
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Hi Daniel,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on bpf-next/master]
url: https://github.com/0day-ci/linux/commits/Daniel-Xu/perf-core-Add-PERF_FORMAT_LOST-read_format/20190917-213515 base: https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: i386-randconfig-e003-201937 (attached as .config) compiler: gcc-7 (Debian 7.4.0-11) 7.4.0 reproduce: # save the attached .config to linux build tree make ARCH=i386
If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@intel.com>
All errors (new ones prefixed by >>):
kernel/events/core.c: In function 'perf_event_lost': >> kernel/events/core.c:4753:11: error: implicit declaration of function 'perf_kprobe_missed'; did you mean 'perf_uprobe_init'? [-Werror=implicit-function-declaration] lost += perf_kprobe_missed(event); ^~~~~~~~~~~~~~~~~~ perf_uprobe_init cc1: some warnings being treated as errors
vim +4753 kernel/events/core.c
4739 4740 static struct pmu perf_kprobe; 4741 static u64 perf_event_lost(struct perf_event *event) 4742 { 4743 struct ring_buffer *rb; 4744 u64 lost = 0; 4745 4746 rcu_read_lock(); 4747 rb = rcu_dereference(event->rb); 4748 if (likely(!!rb)) 4749 lost += local_read(&rb->lost); 4750 rcu_read_unlock(); 4751 4752 if (event->attr.type == perf_kprobe.type) > 4753 lost += perf_kprobe_missed(event); 4754 4755 return lost; 4756 } 4757
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