On 07/05/21 02:13, kernel test robot wrote:
tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue
head: c6d517aecd40b25ea05c593962b2c4b085092343
commit: 9140e381e0f2f8cb1c628c29730ece2a52cb4cbc [11/44] x86/kvm: Teardown PV features on boot CPU as well
config: x86_64-randconfig-a001-20210506 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8f5a2a5836cc8e4c1def2bdeb022e7b496623439)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://git.kernel.org/pub/scm/virt/kvm/kvm.git/commit/?id=9140e381e0f2f8cb1c628c29730ece2a52cb4cbc
git remote add kvm https://git.kernel.org/pub/scm/virt/kvm/kvm.git
git fetch --no-tags kvm queue
git checkout 9140e381e0f2f8cb1c628c29730ece2a52cb4cbc
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>
kvm_guest_cpu_offline must be placed outside #ifdef CONFIG_SMP. I fixed
it up.
Paolo
All errors (new ones prefixed by >>):
arch/x86/kernel/kvm.c:672:2: error: implicit declaration of function 'kvm_guest_cpu_offline' [-Werror,-Wimplicit-function-declaration]
kvm_guest_cpu_offline();
^
arch/x86/kernel/kvm.c:672:2: note: did you mean 'kvm_guest_cpu_init'?
arch/x86/kernel/kvm.c:332:13: note: 'kvm_guest_cpu_init' declared here
static void kvm_guest_cpu_init(void)
^
arch/x86/kernel/kvm.c:679:2: error: implicit declaration of function 'kvm_cpu_online' [-Werror,-Wimplicit-function-declaration]
kvm_cpu_online(raw_smp_processor_id());
^
2 errors generated.
vim +/kvm_guest_cpu_offline +672 arch/x86/kernel/kvm.c
669
670 static int kvm_suspend(void)
671 {
> 672 kvm_guest_cpu_offline();
673
674 return 0;
675 }
676
677 static void kvm_resume(void)
678 {
> 679 kvm_cpu_online(raw_smp_processor_id());
680 }
681
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0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
