Messages in this thread | | | Date | Fri, 13 May 2022 08:49:51 +0800 | From | kernel test robot <> | Subject | [avpatel:riscv_kvm_aia_v1 30/36] arch/arm64/kvm/mmu.c:767:55: warning: incompatible pointer to integer conversion initializing 'gfp_t' (aka 'unsigned int') with an expression of type 'void *' |
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tree: https://github.com/avpatel/linux.git riscv_kvm_aia_v1 head: 59b7f8e2f5ff4f5506a6d781179f42abd758faaa commit: 2e1468f8a505d8b65cf6e3e77348690d9b167923 [30/36] RISC-V: KVM: Add G-stage ioremap() and iounmap() functions config: arm64-buildonly-randconfig-r003-20220512 (https://download.01.org/0day-ci/archive/20220513/202205130807.jiF3WnPH-lkp@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 9519dacab7b8afd537811fc2abaceb4d14f4e16a) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/avpatel/linux/commit/2e1468f8a505d8b65cf6e3e77348690d9b167923 git remote add avpatel https://github.com/avpatel/linux.git git fetch --no-tags avpatel riscv_kvm_aia_v1 git checkout 2e1468f8a505d8b65cf6e3e77348690d9b167923 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/kvm/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> arch/arm64/kvm/mmu.c:767:55: warning: incompatible pointer to integer conversion initializing 'gfp_t' (aka 'unsigned int') with an expression of type 'void *' [-Wint-conversion] struct kvm_mmu_memory_cache cache = { 0, __GFP_ZERO, NULL, }; ^~~~ include/linux/stddef.h:8:14: note: expanded from macro 'NULL' #define NULL ((void *)0) ^~~~~~~~~~~ 1 warning generated.
vim +767 arch/arm64/kvm/mmu.c
d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 752 d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 753 /** d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 754 * kvm_phys_addr_ioremap - map a device range to guest IPA d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 755 * d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 756 * @kvm: The KVM pointer d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 757 * @guest_ipa: The IPA at which to insert the mapping d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 758 * @pa: The physical address of the device d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 759 * @size: The size of the mapping c9c0279cc02b4e arch/arm64/kvm/mmu.c Xiaofei Tan 2020-09-17 760 * @writable: Whether or not to create a writable mapping d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 761 */ d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 762 int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa, c40f2f8ff833ed arch/arm/kvm/mmu.c Ard Biesheuvel 2014-09-17 763 phys_addr_t pa, unsigned long size, bool writable) d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 764 { 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 765 phys_addr_t addr; d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 766 int ret = 0; c1a33aebe91d49 arch/arm64/kvm/mmu.c Sean Christopherson 2020-07-02 @767 struct kvm_mmu_memory_cache cache = { 0, __GFP_ZERO, NULL, }; 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 768 struct kvm_pgtable *pgt = kvm->arch.mmu.pgt; 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 769 enum kvm_pgtable_prot prot = KVM_PGTABLE_PROT_DEVICE | 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 770 KVM_PGTABLE_PROT_R | 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 771 (writable ? KVM_PGTABLE_PROT_W : 0); d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 772 bff01cb6b1bf68 arch/arm64/kvm/mmu.c Quentin Perret 2021-12-08 773 if (is_protected_kvm_enabled()) bff01cb6b1bf68 arch/arm64/kvm/mmu.c Quentin Perret 2021-12-08 774 return -EPERM; bff01cb6b1bf68 arch/arm64/kvm/mmu.c Quentin Perret 2021-12-08 775 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 776 size += offset_in_page(guest_ipa); 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 777 guest_ipa &= PAGE_MASK; c40f2f8ff833ed arch/arm/kvm/mmu.c Ard Biesheuvel 2014-09-17 778 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 779 for (addr = guest_ipa; addr < guest_ipa + size; addr += PAGE_SIZE) { c1a33aebe91d49 arch/arm64/kvm/mmu.c Sean Christopherson 2020-07-02 780 ret = kvm_mmu_topup_memory_cache(&cache, 61ffb3a50c4402 arch/arm64/kvm/mmu.c Sean Christopherson 2020-07-02 781 kvm_mmu_cache_min_pages(kvm)); d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 782 if (ret) 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 783 break; 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 784 fcc5bf89635a05 arch/arm64/kvm/mmu.c Jing Zhang 2022-01-18 785 write_lock(&kvm->mmu_lock); 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 786 ret = kvm_pgtable_stage2_map(pgt, addr, PAGE_SIZE, pa, prot, 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 787 &cache); fcc5bf89635a05 arch/arm64/kvm/mmu.c Jing Zhang 2022-01-18 788 write_unlock(&kvm->mmu_lock); d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 789 if (ret) 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 790 break; d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 791 02bbd374ce4a8a arch/arm64/kvm/mmu.c Will Deacon 2020-09-11 792 pa += PAGE_SIZE; d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 793 } d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 794 c1a33aebe91d49 arch/arm64/kvm/mmu.c Sean Christopherson 2020-07-02 795 kvm_mmu_free_memory_cache(&cache); d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 796 return ret; d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 797 } d5d8184d35c990 arch/arm/kvm/mmu.c Christoffer Dall 2013-01-20 798
:::::: The code at line 767 was first introduced by commit :::::: c1a33aebe91d49c958df1648b2a84db96c403075 KVM: arm64: Use common KVM implementation of MMU memory caches
:::::: TO: Sean Christopherson <sean.j.christopherson@intel.com> :::::: CC: Paolo Bonzini <pbonzini@redhat.com>
-- 0-DAY CI Kernel Test Service https://01.org/lkp
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