[linux-next:master 11918/14131] arch/x86/xen/setup.c:940: undefined reference to `xen_asm_exc_xen_hypervisor_callback'

[linux-next:master 11918/14131] arch/x86/xen/setup.c:940: undefined reference to `xen_asm_exc_xen_hypervisor_callback'

[kbuild test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   e7b08814b16b80a0bf76eeca16317f8c2ed23b8c
commit: 66a07b44e7658da3145bb3a8f45256d103e3addc [11918/14131] x86/entry: Switch XEN/PV hypercall entry to IDTENTRY
config: i386-debian-10.3 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-13) 9.3.0
reproduce (this is a W=1 build):
        git checkout 66a07b44e7658da3145bb3a8f45256d103e3addc
        # 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: kbuild test robot <lkp@intel.com>

All errors (new ones prefixed by >>, old ones prefixed by <<):

ld: arch/x86/xen/setup.o: in function `register_callback':
>> arch/x86/xen/setup.c:940: undefined reference to `xen_asm_exc_xen_hypervisor_callback'
ld: arch/x86/xen/smp_pv.o: in function `cpu_initialize_context':
>> arch/x86/xen/smp_pv.c:350: undefined reference to `xen_asm_exc_xen_hypervisor_callback'

vim +940 arch/x86/xen/setup.c

d2eea68e7db759 arch/i386/xen/setup.c Roland McGrath      2007-07-20  937  
148f9bb87745ed arch/x86/xen/setup.c  Paul Gortmaker      2013-06-18  938  static int register_callback(unsigned type, const void *func)
e2a81baf6604a2 arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-03-17  939  {
88459d4c7eb68c arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-07-08 @940  	struct callback_register callback = {
88459d4c7eb68c arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-07-08  941  		.type = type,
88459d4c7eb68c arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-07-08  942  		.address = XEN_CALLBACK(__KERNEL_CS, func),
e2a81baf6604a2 arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-03-17  943  		.flags = CALLBACKF_mask_events,
e2a81baf6604a2 arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-03-17  944  	};
e2a81baf6604a2 arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-03-17  945  
88459d4c7eb68c arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-07-08  946  	return HYPERVISOR_callback_op(CALLBACKOP_register, &callback);
88459d4c7eb68c arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-07-08  947  }
88459d4c7eb68c arch/x86/xen/setup.c  Jeremy Fitzhardinge 2008-07-08  948  

:::::: The code at line 940 was first introduced by commit
:::::: 88459d4c7eb68c4a15609e00e5d100e2a305f040 xen64: register callbacks in arch-independent way

:::::: TO: Jeremy Fitzhardinge <jeremy@goop.org>
:::::: CC: Ingo Molnar <mingo@elte.hu>

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

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