tree: https://git.kernel.org/pub/scm/virt/kvm/kvm.git master head: 73917739334c6509833b0403b81d4a04a8784bdf commit: f0d648bdf0a5bbc91da6099d5282f77996558ea4 [9/11] KVM: x86: map/unmap private slots in __x86_set_memory_region config: i386-randconfig-s0-201541 (attached as .config) reproduce: git checkout f0d648bdf0a5bbc91da6099d5282f77996558ea4 # save the attached .config to linux build tree make ARCH=i386 All warnings (new ones prefixed by >>): arch/x86/kvm/x86.c: In function '__x86_set_memory_region': >> arch/x86/kvm/x86.c:7499:14: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] if (IS_ERR((void *)hva)) ^ arch/x86/kvm/x86.c:7500:19: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] return PTR_ERR((void *)hva); ^ vim +7499 arch/x86/kvm/x86.c 7483 7484 /* Called with kvm->slots_lock held. */ 7485 if (WARN_ON(id >= KVM_MEM_SLOTS_NUM)) 7486 return -EINVAL; 7487 7488 slot = id_to_memslot(slots, id); 7489 if (size) { 7490 if (WARN_ON(slot->npages)) 7491 return -EEXIST; 7492 7493 /* 7494 * MAP_SHARED to prevent internal slot pages from being moved 7495 * by fork()/COW. 7496 */ 7497 hva = vm_mmap(NULL, 0, size, PROT_READ | PROT_WRITE, 7498 MAP_SHARED | MAP_ANONYMOUS, 0); > 7499 if (IS_ERR((void *)hva)) 7500 return PTR_ERR((void *)hva); 7501 } else { 7502 if (!slot->npages) 7503 return 0; 7504 7505 hva = 0; 7506 } 7507 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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