Hi Paolo, I love your patch! Yet something to improve: [auto build test ERROR on linux/master] [also build test ERROR on linus/master v5.11-rc6 next-20210125] [cannot apply to kvm/linux-next hnaz-linux-mm/master] [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/Paolo-Bonzini/KVM-do-not-assume-PTE-is-writable-after-follow_pfn/20210205-183434 base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2ab38c17aac10bf55ab3efde4c4db3893d8691d2 config: i386-randconfig-a011-20210205 (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/c2a981899d009fddc691f2edf5ad54e9e5a57401 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Paolo-Bonzini/KVM-do-not-assume-PTE-is-writable-after-follow_pfn/20210205-183434 git checkout c2a981899d009fddc691f2edf5ad54e9e5a57401 # 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@xxxxxxxxx> All errors (new ones prefixed by >>): In file included from arch/x86/kvm/../../../virt/kvm/kvm_main.c:18: arch/x86/kvm/../../../virt/kvm/kvm_main.c: In function 'hva_to_pfn_remapped': >> include/linux/kvm_host.h:89:30: error: conversion from 'long long unsigned int' to 'long unsigned int' changes value from '9218868437227405314' to '2' [-Werror=overflow] 89 | #define KVM_PFN_ERR_RO_FAULT (KVM_PFN_ERR_MASK + 2) | ^ arch/x86/kvm/../../../virt/kvm/kvm_main.c:1932:9: note: in expansion of macro 'KVM_PFN_ERR_RO_FAULT' 1932 | pfn = KVM_PFN_ERR_RO_FAULT; | ^~~~~~~~~~~~~~~~~~~~ cc1: all warnings being treated as errors vim +89 include/linux/kvm_host.h 9c5b11728344e1 Xiao Guangrong 2012-08-03 86 9c5b11728344e1 Xiao Guangrong 2012-08-03 87 #define KVM_PFN_ERR_FAULT (KVM_PFN_ERR_MASK) 9c5b11728344e1 Xiao Guangrong 2012-08-03 88 #define KVM_PFN_ERR_HWPOISON (KVM_PFN_ERR_MASK + 1) 81c52c56e2b435 Xiao Guangrong 2012-10-16 @89 #define KVM_PFN_ERR_RO_FAULT (KVM_PFN_ERR_MASK + 2) 6c8ee57be9350c Xiao Guangrong 2012-08-03 90 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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