tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 9a9aa07ae18be3b77ba132a6eff3a92c9b83e016 commit: 11d8ffed00b231356008b35a3b0bc192e42333fa [15563/15831] vp_vdpa: switch to use vp_modern_map_vq_notify() config: x86_64-randconfig-s022-20210504 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=11d8ffed00b231356008b35a3b0bc192e42333fa git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 11d8ffed00b231356008b35a3b0bc192e42333fa # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/vdpa/virtio_pci/vp_vdpa.c:418:42: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void [noderef] __iomem *notify @@ got void * @@ drivers/vdpa/virtio_pci/vp_vdpa.c:418:42: sparse: expected void [noderef] __iomem *notify drivers/vdpa/virtio_pci/vp_vdpa.c:418:42: sparse: got void * vim +418 drivers/vdpa/virtio_pci/vp_vdpa.c 366 367 static int vp_vdpa_probe(struct pci_dev *pdev, const struct pci_device_id *id) 368 { 369 struct virtio_pci_modern_device *mdev; 370 struct device *dev = &pdev->dev; 371 struct vp_vdpa *vp_vdpa; 372 int ret, i; 373 374 ret = pcim_enable_device(pdev); 375 if (ret) 376 return ret; 377 378 vp_vdpa = vdpa_alloc_device(struct vp_vdpa, vdpa, 379 dev, &vp_vdpa_ops, NULL); 380 if (vp_vdpa == NULL) { 381 dev_err(dev, "vp_vdpa: Failed to allocate vDPA structure\n"); 382 return -ENOMEM; 383 } 384 385 mdev = &vp_vdpa->mdev; 386 mdev->pci_dev = pdev; 387 388 ret = vp_modern_probe(mdev); 389 if (ret) { 390 dev_err(&pdev->dev, "Failed to probe modern PCI device\n"); 391 goto err; 392 } 393 394 pci_set_master(pdev); 395 pci_set_drvdata(pdev, vp_vdpa); 396 397 vp_vdpa->vdpa.dma_dev = &pdev->dev; 398 vp_vdpa->queues = vp_modern_get_num_queues(mdev); 399 400 ret = devm_add_action_or_reset(dev, vp_vdpa_free_irq_vectors, pdev); 401 if (ret) { 402 dev_err(&pdev->dev, 403 "Failed for adding devres for freeing irq vectors\n"); 404 goto err; 405 } 406 407 vp_vdpa->vring = devm_kcalloc(&pdev->dev, vp_vdpa->queues, 408 sizeof(*vp_vdpa->vring), 409 GFP_KERNEL); 410 if (!vp_vdpa->vring) { 411 ret = -ENOMEM; 412 dev_err(&pdev->dev, "Fail to allocate virtqueues\n"); 413 goto err; 414 } 415 416 for (i = 0; i < vp_vdpa->queues; i++) { 417 vp_vdpa->vring[i].irq = VIRTIO_MSI_NO_VECTOR; > 418 vp_vdpa->vring[i].notify = vp_modern_map_vq_notify(mdev, i); 419 if (!vp_vdpa->vring[i].notify) { 420 dev_warn(&pdev->dev, "Fail to map vq notify %d\n", i); 421 goto err; 422 } 423 } 424 vp_vdpa->config_irq = VIRTIO_MSI_NO_VECTOR; 425 426 ret = vdpa_register_device(&vp_vdpa->vdpa, vp_vdpa->queues); 427 if (ret) { 428 dev_err(&pdev->dev, "Failed to register to vdpa bus\n"); 429 goto err; 430 } 431 432 return 0; 433 434 err: 435 put_device(&vp_vdpa->vdpa.dev); 436 return ret; 437 } 438 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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