[jfern:nova-core-experiments 231/411] drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:24:15: sparse: sparse: incorrect type in assignment (different address spaces)

[jfern:nova-core-experiments 231/411] drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:24:15: sparse: sparse: incorrect type in assignment (different address spaces)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git nova-core-experiments
head:   3b93174b3502247b0c46bd54a7cf5f4105274edb
commit: 09de2f1993ad7c90f7cdf93e32d29d14f92e7b0b [231/411] vfio/vgpu_mgr: introduce vGPU host RPC channel
config: powerpc-randconfig-r112-20250308 (https://download.01.org/0day-ci/archive/20250308/202503081504.RNQMZqra-lkp@intel.com/config)
compiler: clang version 18.1.8 (https://github.com/llvm/llvm-project 3b5b5c1ec4a3095ab096dd780e84d7ab81f3d7ff)
reproduce: (https://download.01.org/0day-ci/archive/20250308/202503081504.RNQMZqra-lkp@intel.com/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@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202503081504.RNQMZqra-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:8:1: sparse: sparse: symbol 'vgpu_mgr_attach_lock' was not declared. Should it be static?
>> drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:24:15: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void *vaddr @@     got void [noderef] __iomem * @@
   drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:24:15: sparse:     expected void *vaddr
   drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:24:15: sparse:     got void [noderef] __iomem *
>> drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:28:30: sparse: sparse: incorrect type in assignment (different address spaces) @@     expected void [noderef] __iomem *bar0_vaddr @@     got void *vaddr @@
   drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:28:30: sparse:     expected void [noderef] __iomem *bar0_vaddr
   drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c:28:30: sparse:     got void *vaddr

vim +24 drivers/vfio/pci/nvidia-vgpu/vgpu_mgr.c

    14	
    15	static int map_pf_mmio(struct nvidia_vgpu_mgr *vgpu_mgr)
    16	{
    17		struct pci_dev *pdev = vgpu_mgr->pdev;
    18		resource_size_t start, size;
    19		void *vaddr;
    20	
    21		start = pci_resource_start(pdev, 0);
    22		size = pci_resource_len(pdev, 0);
    23	
  > 24		vaddr = ioremap(start, size);
    25		if (!vaddr)
    26			return -ENOMEM;
    27	
  > 28		vgpu_mgr->bar0_vaddr = vaddr;
    29	
    30		return 0;
    31	}
    32	

-- 
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https://github.com/intel/lkp-tests/wiki