linux-kernel - Re: [PATCH 01/13] perf/core: Add perf_arch_regs and mask to perf

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Date:   Mon, 29 Aug 2016 07:41:07 +0800
From:   kbuild test robot <lkp@...el.com>
To:     Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>
Cc:     kbuild-all@...org, linux-kernel@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org,
        Madhavan Srinivasan <maddy@...ux.vnet.ibm.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...nel.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Jiri Olsa <jolsa@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Stephane Eranian <eranian@...il.com>,
        Russell King <linux@....linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will.deacon@....com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Michael Ellerman <mpe@...erman.id.au>,
        Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com>
Subject: Re: [PATCH 01/13] perf/core: Add perf_arch_regs and mask to
 perf_regs structure

Hi Madhavan,

[auto build test WARNING on tip/perf/core]
[also build test WARNING on v4.8-rc4 next-20160825]
[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/Madhavan-Srinivasan/perf-core-Add-perf_arch_regs-and-mask-to-perf_regs-structure/20160829-050443
config: frv-defconfig (attached as .config)
compiler: frv-linux-gcc (GCC) 4.9.0
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=frv 

All warnings (new ones prefixed by >>):

   kernel/sched/idle.o: In function `perf_get_arch_regs_mask':
   idle.c:(.text+0x0): multiple definition of `perf_get_arch_regs_mask'
   kernel/sched/core.o:core.c:(.text+0x310): first defined here
>> frv-linux-ld: Warning: size of symbol `perf_get_arch_regs_mask' changed from 44 in kernel/sched/core.o to 12 in kernel/sched/idle.o
   kernel/sched/idle.o: In function `perf_get_arch_reg':
   idle.c:(.text+0x10): multiple definition of `perf_get_arch_reg'
   kernel/sched/core.o:core.c:(.text+0x340): first defined here
>> frv-linux-ld: Warning: size of symbol `perf_get_arch_reg' changed from 40 in kernel/sched/core.o to 8 in kernel/sched/idle.o
   kernel/sched/idle.o: In function `perf_arch_reg_value':
   idle.c:(.text+0x20): multiple definition of `perf_arch_reg_value'
   kernel/sched/core.o:core.c:(.text+0x370): first defined here
>> frv-linux-ld: Warning: size of symbol `perf_arch_reg_value' changed from 44 in kernel/sched/core.o to 12 in kernel/sched/idle.o

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0-DAY kernel test infrastructure                Open Source Technology Center
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Download attachment ".config.gz" of type "application/octet-stream" (8370 bytes)