Hi Ilias, kernel test robot noticed the following build errors: [auto build test ERROR on kvm/queue] [also build test ERROR on mst-vhost/linux-next linus/master v6.10-rc7] [cannot apply to kvm/linux-next next-20240712] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Ilias-Stamatis/KVM-Fix-coalesced_mmio_has_room/20240710-222059 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20240710085259.2125131-5-ilstam%40amazon.com patch subject: [PATCH 4/6] KVM: Add KVM_(UN)REGISTER_COALESCED_MMIO2 ioctls config: loongarch-randconfig-001-20240713 (https://download.01.org/0day-ci/archive/20240714/202407140049.CuVivD5M-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 14.1.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240714/202407140049.CuVivD5M-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202407140049.CuVivD5M-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): arch/loongarch/kvm/../../../virt/kvm/coalesced_mmio.c: In function 'kvm_vm_ioctl_register_coalesced_mmio': >> arch/loongarch/kvm/../../../virt/kvm/coalesced_mmio.c:292:24: error: implicit declaration of function 'fget'; did you mean 'sget'? [-Wimplicit-function-declaration] 292 | file = fget(zone->buffer_fd); | ^~~~ | sget >> arch/loongarch/kvm/../../../virt/kvm/coalesced_mmio.c:292:22: error: assignment to 'struct file *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 292 | file = fget(zone->buffer_fd); | ^ >> arch/loongarch/kvm/../../../virt/kvm/coalesced_mmio.c:297:25: error: implicit declaration of function 'fput'; did you mean 'iput'? [-Wimplicit-function-declaration] 297 | fput(file); | ^~~~ | iput vim +292 arch/loongarch/kvm/../../../virt/kvm/coalesced_mmio.c 278 279 int kvm_vm_ioctl_register_coalesced_mmio(struct kvm *kvm, 280 struct kvm_coalesced_mmio_zone2 *zone, 281 bool use_buffer_fd) 282 { 283 int ret = 0; 284 struct file *file; 285 struct kvm_coalesced_mmio_dev *dev; 286 struct kvm_coalesced_mmio_buffer_dev *buffer_dev = NULL; 287 288 if (zone->pio != 1 && zone->pio != 0) 289 return -EINVAL; 290 291 if (use_buffer_fd) { > 292 file = fget(zone->buffer_fd); 293 if (!file) 294 return -EBADF; 295 296 if (file->f_op != &coalesced_mmio_buffer_ops) { > 297 fput(file); 298 return -EINVAL; 299 } 300 301 buffer_dev = file->private_data; 302 if (!buffer_dev->ring) { 303 fput(file); 304 return -ENOBUFS; 305 } 306 } 307 308 dev = kzalloc(sizeof(struct kvm_coalesced_mmio_dev), 309 GFP_KERNEL_ACCOUNT); 310 if (!dev) { 311 ret = -ENOMEM; 312 goto out_free_file; 313 } 314 315 kvm_iodevice_init(&dev->dev, &coalesced_mmio_ops); 316 dev->kvm = kvm; 317 dev->zone = *zone; 318 dev->buffer_dev = buffer_dev; 319 320 mutex_lock(&kvm->slots_lock); 321 ret = kvm_io_bus_register_dev(kvm, 322 zone->pio ? KVM_PIO_BUS : KVM_MMIO_BUS, 323 zone->addr, zone->size, &dev->dev); 324 if (ret < 0) 325 goto out_free_dev; 326 list_add_tail(&dev->list, &kvm->coalesced_zones); 327 mutex_unlock(&kvm->slots_lock); 328 329 goto out_free_file; 330 331 out_free_dev: 332 mutex_unlock(&kvm->slots_lock); 333 kfree(dev); 334 out_free_file: 335 if (use_buffer_fd) 336 fput(file); 337 338 return ret; 339 } 340 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
