Subject: Re: [PATCH v9 2/2] powerpc/64s: KVM update for reimplement book3s idle code in C

From: kbuild test robot <[email-masked]>
Date: Sat, 13 Apr 2019 10:51:43 +0800

Hi Nicholas,

I love your patch! Yet something to improve:

[auto build test ERROR on powerpc/next]
[also build test ERROR on v5.1-rc4 next-20190412]
[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/Nicholas-Piggin/powerpc-64s-reimplement-book3s-idle-code-in-C/20190413-002437
base:   https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git next
config: powerpc-defconfig (attached as .config)
compiler: powerpc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
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=7.2.0 make.cross ARCH=powerpc 

All errors (new ones prefixed by >>):

   powerpc64-linux-gnu-ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'.
   arch/powerpc/platforms/powernv/idle.o: In function `.pnv_cpu_offline':
>> (.text+0x1900): undefined reference to `.idle_kvm_start_guest'

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