Hi Nikunj, kernel test robot noticed the following build warnings: [auto build test WARNING on 8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b] url: https://github.com/intel-lab-lkp/linux/commits/Nikunj-A-Dadhania/virt-sev-guest-Use-AES-GCM-crypto-library/20241009-173734 base: 8cf0b93919e13d1e8d4466eb4080a4c4d9d66d7b patch link: https://lore.kernel.org/r/20241009092850.197575-8-nikunj%40amd.com patch subject: [PATCH v12 07/19] x86/sev: Carve out and export SNP guest messaging init routines config: x86_64-randconfig-121-20241017 (https://download.01.org/0day-ci/archive/20241017/202410171505.gZbmXuo2-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241017/202410171505.gZbmXuo2-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/202410171505.gZbmXuo2-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> arch/x86/coco/sev/core.c:2663:24: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct snp_secrets_page *secrets @@ got void [noderef] __iomem * @@ arch/x86/coco/sev/core.c:2663:24: sparse: expected struct snp_secrets_page *secrets arch/x86/coco/sev/core.c:2663:24: sparse: got void [noderef] __iomem * >> arch/x86/coco/sev/core.c:2694:22: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got struct snp_secrets_page *secrets @@ arch/x86/coco/sev/core.c:2694:22: sparse: expected void volatile [noderef] __iomem *addr arch/x86/coco/sev/core.c:2694:22: sparse: got struct snp_secrets_page *secrets vim +2663 arch/x86/coco/sev/core.c 2649 2650 struct snp_msg_desc *snp_msg_alloc(void) 2651 { 2652 struct snp_msg_desc *mdesc; 2653 2654 BUILD_BUG_ON(sizeof(struct snp_guest_msg) > PAGE_SIZE); 2655 2656 if (snp_mdesc) 2657 return snp_mdesc; 2658 2659 mdesc = kzalloc(sizeof(struct snp_msg_desc), GFP_KERNEL); 2660 if (!mdesc) 2661 return ERR_PTR(-ENOMEM); 2662 > 2663 mdesc->secrets = ioremap_encrypted(secrets_pa, PAGE_SIZE); 2664 if (!mdesc->secrets) 2665 return ERR_PTR(-ENODEV); 2666 2667 /* Allocate the shared page used for the request and response message. */ 2668 mdesc->request = alloc_shared_pages(sizeof(struct snp_guest_msg)); 2669 if (!mdesc->request) 2670 goto e_unmap; 2671 2672 mdesc->response = alloc_shared_pages(sizeof(struct snp_guest_msg)); 2673 if (!mdesc->response) 2674 goto e_free_request; 2675 2676 mdesc->certs_data = alloc_shared_pages(SEV_FW_BLOB_MAX_SIZE); 2677 if (!mdesc->certs_data) 2678 goto e_free_response; 2679 2680 /* initial the input address for guest request */ 2681 mdesc->input.req_gpa = __pa(mdesc->request); 2682 mdesc->input.resp_gpa = __pa(mdesc->response); 2683 mdesc->input.data_gpa = __pa(mdesc->certs_data); 2684 2685 snp_mdesc = mdesc; 2686 2687 return mdesc; 2688 2689 e_free_response: 2690 free_shared_pages(mdesc->response, sizeof(struct snp_guest_msg)); 2691 e_free_request: 2692 free_shared_pages(mdesc->request, sizeof(struct snp_guest_msg)); 2693 e_unmap: > 2694 iounmap(mdesc->secrets); -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
