Hi Sergey, Thank you for the patch! Yet something to improve: [auto build test ERROR on xen-tip/linux-next] [also build test ERROR on tip/x86/mm tip/auto-latest linux/master linus/master v5.5-rc7 next-20200121] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Sergey-Dyasli/basic-KASAN-support-for-Xen-PV-domains/20200118-073544 base: https://git.kernel.org/pub/scm/linux/kernel/git/xen/tip.git linux-next config: x86_64-randconfig-a002-20200121 (attached as .config) compiler: gcc-6 (Debian 6.3.0-18+deb9u1) 6.3.0 20170516 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): arch/x86/xen/mmu_pv.c: In function 'xen_pv_kasan_early_init': >> arch/x86/xen/mmu_pv.c:1778:16: error: 'kasan_early_shadow_pud' undeclared (first use in this function) set_page_prot(kasan_early_shadow_pud, PAGE_KERNEL_RO); ^~~~~~~~~~~~~~~~~~~~~~ arch/x86/xen/mmu_pv.c:1778:16: note: each undeclared identifier is reported only once for each function it appears in >> arch/x86/xen/mmu_pv.c:1779:16: error: 'kasan_early_shadow_pmd' undeclared (first use in this function) set_page_prot(kasan_early_shadow_pmd, PAGE_KERNEL_RO); ^~~~~~~~~~~~~~~~~~~~~~ >> arch/x86/xen/mmu_pv.c:1780:16: error: 'kasan_early_shadow_pte' undeclared (first use in this function) set_page_prot(kasan_early_shadow_pte, PAGE_KERNEL_RO); ^~~~~~~~~~~~~~~~~~~~~~ vim +/kasan_early_shadow_pud +1778 arch/x86/xen/mmu_pv.c 1774 1775 pgd_t * __init xen_pv_kasan_early_init(void) 1776 { 1777 /* PV page tables must be read-only */ > 1778 set_page_prot(kasan_early_shadow_pud, PAGE_KERNEL_RO); > 1779 set_page_prot(kasan_early_shadow_pmd, PAGE_KERNEL_RO); > 1780 set_page_prot(kasan_early_shadow_pte, PAGE_KERNEL_RO); 1781 1782 /* Return a pointer to the initial PV page tables */ 1783 return (pgd_t *)xen_start_info->pt_base; 1784 } 1785 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx Intel Corporation
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