Hi Suraj, I love your patch! Yet something to improve: [auto build test ERROR on kvm/linux-next] [also build test ERROR on v5.0 next-20190305] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Suraj-Jitindar-Singh/KVM-Implement-kvm_copy_guest-to-perform-copy-of-guest-memory-in-place/20190306-170132 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git linux-next config: i386-randconfig-l2-03061123 (attached as .config) compiler: gcc-5 (Debian 5.5.0-3) 5.4.1 20171010 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): arch/x86/kvm/../../../virt/kvm/kvm_main.c: In function '__kvm_copy_guest_page': >> arch/x86/kvm/../../../virt/kvm/kvm_main.c:2018:6: error: implicit declaration of function 'raw_copy_in_user' [-Werror=implicit-function-declaration] r = raw_copy_in_user((void __user *)to_addr + to_offset, ^ cc1: some warnings being treated as errors vim +/raw_copy_in_user +2018 arch/x86/kvm/../../../virt/kvm/kvm_main.c 2003 2004 static int __kvm_copy_guest_page(struct kvm_memory_slot *to_memslot, 2005 gfn_t to_gfn, int to_offset, 2006 struct kvm_memory_slot *from_memslot, 2007 gfn_t from_gfn, int from_offset, int len) 2008 { 2009 int r; 2010 unsigned long to_addr, from_addr; 2011 2012 to_addr = gfn_to_hva_memslot(to_memslot, to_gfn); 2013 if (kvm_is_error_hva(to_addr)) 2014 return -EFAULT; 2015 from_addr = gfn_to_hva_memslot(from_memslot, from_gfn); 2016 if (kvm_is_error_hva(from_addr)) 2017 return -EFAULT; > 2018 r = raw_copy_in_user((void __user *)to_addr + to_offset, 2019 (void __user *)from_addr + from_offset, len); 2020 if (r) 2021 return -EFAULT; 2022 mark_page_dirty_in_slot(to_memslot, to_gfn); 2023 return 0; 2024 } 2025 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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