[openeuler:OLK-6.6 1540/1540] arch/arm64/kvm/../../../virt/kvm/vfio.c:581:5: warning: no previous prototype for 'cvm_smmu_domain_judge'
tree: https://gitee.com/openeuler/kernel.git OLK-6.6 head: 95bc69473a373c2e578d4fc39734e5811a03ead3 commit: ad540a13eb8292fc92651b3bf281088a502a85f9 [1540/1540] virtcca feature: fix msi iova map config: arm64-randconfig-002-20241128 (https://download.01.org/0day-ci/archive/20241128/202411282114.3K6QSB4D-lkp@i...) compiler: aarch64-linux-gcc (GCC) 14.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241128/202411282114.3K6QSB4D-lkp@i...)
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@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202411282114.3K6QSB4D-lkp@intel.com/
All warnings (new ones prefixed by >>):
arch/arm64/kvm/../../../virt/kvm/vfio.c:518:5: warning: no previous prototype for 'find_arm_smmu_domain' [-Wmissing-prototypes] 518 | int find_arm_smmu_domain(struct device *dev, void *data) | ^~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/../../../virt/kvm/vfio.c:581:5: warning: no previous prototype for 'cvm_smmu_domain_judge' [-Wmissing-prototypes]
581 | int cvm_smmu_domain_judge(struct device *dev, void *data) | ^~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/../../../virt/kvm/vfio.c:599:5: warning: no previous prototype for 'virtcca_cvm_smmu_domain_judge' [-Wmissing-prototypes]
599 | int virtcca_cvm_smmu_domain_judge(struct iommu_group *group, struct arm_smmu_domain *smmu_domain) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/../../../virt/kvm/vfio.c:616:5: warning: no previous prototype for 'virtcca_iommu_group_map_msi_address' [-Wmissing-prototypes]
616 | int virtcca_iommu_group_map_msi_address(struct kvm *kvm, struct kvm_vfio_file *kvf, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -- arch/arm64/kvm/virtcca_cvm.c:963:5: warning: no previous prototype for 'kvm_cvm_create_dev_ttt_levels' [-Wmissing-prototypes] 963 | int kvm_cvm_create_dev_ttt_levels(struct kvm *kvm, struct virtcca_cvm *cvm, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
arch/arm64/kvm/virtcca_cvm.c:1193:5: warning: no previous prototype for 'cvm_arm_smmu_domain_set_kvm' [-Wmissing-prototypes]
1193 | int cvm_arm_smmu_domain_set_kvm(struct device *dev, void *data) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ --
drivers/coda/coda_vfio.c:323:5: warning: no previous prototype for 'virtcca_set_dev_msi_addr' [-Wmissing-prototypes]
323 | int virtcca_set_dev_msi_addr(struct device *dev, void *iova) | ^~~~~~~~~~~~~~~~~~~~~~~~ --
drivers/coda/coda.c:478:5: warning: no previous prototype for 'virtcca_secure_dev_operator' [-Wmissing-prototypes]
478 | int virtcca_secure_dev_operator(struct device *dev, void *domain) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ -- drivers/iommu/arm/arm-smmu-v3/arm-s-smmu-v3.c:330:13: warning: no previous prototype for 'virtcca_smmu_gerror_handler' [-Wmissing-prototypes] 330 | irqreturn_t virtcca_smmu_gerror_handler(int irq, void *dev) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/iommu/arm/arm-smmu-v3/arm-s-smmu-v3.c:588:6: warning: no previous prototype for 'virtcca_smmu_map_init' [-Wmissing-prototypes]
588 | bool virtcca_smmu_map_init(struct arm_smmu_device *smmu, resource_size_t ioaddr) | ^~~~~~~~~~~~~~~~~~~~~
vim +/cvm_smmu_domain_judge +581 arch/arm64/kvm/../../../virt/kvm/vfio.c
512 513 /** 514 * find_arm_smmu_domain - Find smmu domain list from kvm vfio file 515 * @kvf: Kvm vfio file 516 * @smmu_domain_group_list: List of smmu domain group 517 */
518 int find_arm_smmu_domain(struct device *dev, void *data)
519 { 520 int ret = 0; 521 struct iommu_domain *domain = NULL; 522 struct arm_smmu_domain *arm_smmu_domain = NULL; 523 struct arm_smmu_domain *arm_smmu_domain_node = NULL; 524 struct list_head *smmu_domain_group_list = (struct list_head *)data; 525 526 domain = iommu_get_domain_for_dev(dev); 527 arm_smmu_domain = to_smmu_domain(domain); 528 list_for_each_entry(arm_smmu_domain_node, 529 smmu_domain_group_list, node) { 530 if (arm_smmu_domain_node == arm_smmu_domain) { 531 ret = -1; 532 break; 533 } 534 } 535 if (!ret) 536 list_add_tail(&arm_smmu_domain->node, smmu_domain_group_list); 537 538 return 1; 539 } 540 541 /** 542 * kvm_get_arm_smmu_domain - Find kvm vfio file from kvm 543 * @kvm: Kvm handle 544 * @smmu_domain_group_list: List of smmu domain group 545 */ 546 void kvm_get_arm_smmu_domain(struct kvm *kvm, struct list_head *smmu_domain_group_list) 547 { 548 struct kvm_device *dev; 549 struct kvm_vfio *kv; 550 struct kvm_vfio_file *kvf; 551 struct iommu_group *iommu_group = NULL; 552 553 INIT_LIST_HEAD(smmu_domain_group_list); 554 555 list_for_each_entry(dev, &kvm->devices, vm_node) { 556 /* The device name passed through the vfio driver is called kvm-vfio */ 557 if (dev->ops && strcmp(dev->ops->name, "kvm-vfio") != 0) 558 continue; 559 560 kv = (struct kvm_vfio *)dev->private; 561 mutex_lock(&kv->lock); 562 list_for_each_entry(kvf, &kv->file_list, node) { 563 iommu_group = cvm_vfio_file_iommu_group(kvf->file); 564 iommu_group_for_each_dev(iommu_group, 565 (void *)smmu_domain_group_list, find_arm_smmu_domain); 566 } 567 mutex_unlock(&kv->lock); 568 } 569 } 570 571 /** 572 * cvm_smmu_domain_judge - Find the iommu group corresponding to the smmu domain 573 * @dev: The handle of device 574 * @data: Smmu domain 575 * 576 * Returns: 577 * %-ENXIO if domain is null 578 * %SMMU_DOMAIN_IS_SAME if find the iommu group corresponding to the smmu domain 579 * %1 if does not find the iommu group 580 */
581 int cvm_smmu_domain_judge(struct device *dev, void *data)
582 { 583 struct iommu_domain *domain = NULL; 584 struct arm_smmu_domain *arm_smmu_domain = NULL; 585 struct arm_smmu_domain *smmu_domain = (struct arm_smmu_domain *)data; 586 587 domain = iommu_get_domain_for_dev(dev); 588 if (!domain) 589 return -ENXIO; 590 591 arm_smmu_domain = to_smmu_domain(domain); 592 if (arm_smmu_domain == smmu_domain) 593 return SMMU_DOMAIN_IS_SAME; 594 595 return 1; 596 } 597 598 /* Judge the iommu group correspond to the smmu domain */
599 int virtcca_cvm_smmu_domain_judge(struct iommu_group *group, struct arm_smmu_domain *smmu_domain)
600 { 601 int ret; 602 603 ret = iommu_group_for_each_dev((struct iommu_group *)group, 604 (void *)smmu_domain, cvm_smmu_domain_judge); 605 return ret; 606 } 607 608 /** 609 * virtcca_iommu_group_map_msi_address - Find iommu group from kvm vfio file, map it 610 * @kvm: The handle of kvm 611 * @kvf: Kvm vfio file 612 * @smmu_domain: Smmu domain 613 * @pa: Physical address 614 * @map_size: Mapped size 615 */
616 int virtcca_iommu_group_map_msi_address(struct kvm *kvm, struct kvm_vfio_file *kvf,
617 struct arm_smmu_domain *smmu_domain, phys_addr_t pa, unsigned long map_size) 618 { 619 unsigned long iova; 620 int ret = 0; 621 struct iommu_group *iommu_group = NULL; 622 623 iommu_group = cvm_vfio_file_iommu_group(kvf->file); 624 if (iommu_group) { 625 if (virtcca_cvm_smmu_domain_judge(iommu_group, smmu_domain) == 626 SMMU_DOMAIN_IS_SAME) { 627 iova = virtcca_get_iommu_device_msi_addr(iommu_group); 628 if (!iova) 629 return -ENXIO; 630 631 ret = virtcca_iommu_group_set_dev_msi_addr(iommu_group, &iova); 632 if (ret) 633 return ret; 634 635 ret = cvm_map_unmap_ipa_range(kvm, iova, pa, map_size, true); 636 if (ret) 637 return ret; 638 } 639 } 640 return ret; 641 } 642
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