linux-kernel - Re: [PATCH v3 bpf-next 1/4] tracing/probe: Add PERF_EVENT_IOC_QUERY

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Date:   Tue, 20 Aug 2019 10:04:25 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Daniel Xu <dxu@...uu.xyz>
Cc:     kbuild-all@...org, bpf@...r.kernel.org, songliubraving@...com,
        yhs@...com, andriin@...com, peterz@...radead.org, mingo@...hat.com,
        acme@...nel.org, Daniel Xu <dxu@...uu.xyz>, ast@...com,
        alexander.shishkin@...ux.intel.com, jolsa@...hat.com,
        namhyung@...nel.org, linux-kernel@...r.kernel.org,
        kernel-team@...com
Subject: Re: [PATCH v3 bpf-next 1/4] tracing/probe: Add
 PERF_EVENT_IOC_QUERY_PROBE ioctl

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/tracing-probe-Add-PERF_EVENT_IOC_QUERY_PROBE-ioctl/20190820-003910
base:   https://kernel.googlesource.com/pub/scm/linux/kernel/git/bpf/bpf-next.git master
config: arm64-defconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 7.4.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        GCC_VERSION=7.4.0 make.cross ARCH=arm64 

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   init/do_mounts.o: In function `perf_kprobe_event_query':
>> do_mounts.c:(.text+0x4e8): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   init/do_mounts.o: In function `perf_uprobe_event_query':
>> do_mounts.c:(.text+0x4f0): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   init/do_mounts_initrd.o: In function `perf_kprobe_event_query':
   do_mounts_initrd.c:(.text+0x0): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   init/do_mounts_initrd.o: In function `perf_uprobe_event_query':
   do_mounts_initrd.c:(.text+0x8): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   init/initramfs.o: In function `perf_kprobe_event_query':
   initramfs.c:(.text+0x0): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   init/initramfs.o: In function `perf_uprobe_event_query':
   initramfs.c:(.text+0x8): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/process.o: In function `perf_kprobe_event_query':
   process.c:(.text+0x0): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/process.o: In function `perf_uprobe_event_query':
   process.c:(.text+0x8): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/signal.o: In function `perf_kprobe_event_query':
   signal.c:(.text+0x11e0): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/signal.o: In function `perf_uprobe_event_query':
   signal.c:(.text+0x11e8): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/sys.o: In function `perf_kprobe_event_query':
   sys.c:(.text+0xb8): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/sys.o: In function `perf_uprobe_event_query':
   sys.c:(.text+0xc0): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/traps.o: In function `perf_kprobe_event_query':
   traps.c:(.text+0x510): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/traps.o: In function `perf_uprobe_event_query':
   traps.c:(.text+0x518): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/syscall.o: In function `perf_kprobe_event_query':
   syscall.c:(.text+0x168): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/syscall.o: In function `perf_uprobe_event_query':
   syscall.c:(.text+0x170): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/sys32.o: In function `perf_kprobe_event_query':
   sys32.c:(.text+0x228): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/sys32.o: In function `perf_uprobe_event_query':
   sys32.c:(.text+0x230): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/signal32.o: In function `perf_kprobe_event_query':
   signal32.c:(.text+0x1548): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/signal32.o: In function `perf_uprobe_event_query':
   signal32.c:(.text+0x1550): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kernel/sys_compat.o: In function `perf_kprobe_event_query':
   sys_compat.c:(.text+0x0): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kernel/sys_compat.o: In function `perf_uprobe_event_query':
   sys_compat.c:(.text+0x8): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   arch/arm64/kvm/../../../virt/kvm/eventfd.o: In function `perf_kprobe_event_query':
   eventfd.c:(.text+0x810): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   arch/arm64/kvm/../../../virt/kvm/eventfd.o: In function `perf_uprobe_event_query':
   eventfd.c:(.text+0x818): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   kernel/fork.o: In function `perf_kprobe_event_query':
   fork.c:(.text+0x990): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   kernel/fork.o: In function `perf_uprobe_event_query':
   fork.c:(.text+0x998): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   kernel/exec_domain.o: In function `perf_kprobe_event_query':
   exec_domain.c:(.text+0x20): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   kernel/exec_domain.o: In function `perf_uprobe_event_query':
   exec_domain.c:(.text+0x28): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   kernel/cpu.o: In function `perf_kprobe_event_query':
   cpu.c:(.text+0x1670): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   kernel/cpu.o: In function `perf_uprobe_event_query':
   cpu.c:(.text+0x1678): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   kernel/exit.o: In function `perf_kprobe_event_query':
   exit.c:(.text+0x260): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   kernel/exit.o: In function `perf_uprobe_event_query':
   exit.c:(.text+0x268): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   kernel/sysctl.o: In function `perf_kprobe_event_query':
   sysctl.c:(.text+0x2200): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here
   kernel/sysctl.o: In function `perf_uprobe_event_query':
   sysctl.c:(.text+0x2208): multiple definition of `perf_uprobe_event_query'
   init/main.o:main.c:(.text+0x170): first defined here
   kernel/sysctl_binary.o: In function `perf_kprobe_event_query':
   sysctl_binary.c:(.text+0x200): multiple definition of `perf_kprobe_event_query'
   init/main.o:main.c:(.text+0x168): first defined here

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