Re: [PATCH v3 08/15] x86: add new features for paravirt patching

kernel test robot
2020-12-17T13:14:18Z

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Hi Juergen,

I love your patch! Yet something to improve:

[auto build test ERROR on linus/master]
[also build test ERROR on v5.10]
[cannot apply to xen-tip/linux-next tip/x86/core tip/x86/asm next-20201217]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url: https://github.com/0day-ci/linux/commits/Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git accefff5b547a9a1d959c7e76ad539bf2480e78b
config: i386-randconfig-r021-20201217 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
# https://github.com/0day-ci/linux/commit/032ee351da7a8adab17b0306cf5908b02f5728d2
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Juergen-Gross/x86-major-paravirt-cleanup/20201217-173646
git checkout 032ee351da7a8adab17b0306cf5908b02f5728d2
# save the attached .config to linux build tree
make W=1 ARCH=i386

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

ld: arch/x86/kernel/alternative.o: in function `paravirt_set_cap':
>> arch/x86/kernel/alternative.c:605: undefined reference to `pv_is_native_spin_unlock'
>> ld: arch/x86/kernel/alternative.c:608: undefined reference to `pv_is_native_vcpu_is_preempted'

vim +605 arch/x86/kernel/alternative.c

601
602 #ifdef CONFIG_PARAVIRT
603 static void __init paravirt_set_cap(void)
604 {
> 605 if (!pv_is_native_spin_unlock())
606 setup_force_cpu_cap(X86_FEATURE_PVUNLOCK);
607
> 608 if (!pv_is_native_vcpu_is_preempted())
609 setup_force_cpu_cap(X86_FEATURE_VCPUPREEMPT);
610 }
611

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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