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X-CSE-ConnectionGUID: /bzpWj/sTt2FuDUV/wz91Q== X-CSE-MsgGUID: Li2nMHQpTjy7oUzMsHKAfg== X-IronPort-AV: E=McAfee;i="6800,10657,11864"; a="97029692" X-IronPort-AV: E=Sophos;i="6.25,204,1779174000"; d="scan'208";a="97029692" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Aug 2026 01:35:27 -0700 X-CSE-ConnectionGUID: wxTV3UxuSWSWsBGbcEtaiw== X-CSE-MsgGUID: uCczyNaATW6yQyZk8jMSRA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,204,1779174000"; d="scan'208";a="260845610" Received: from lkp-server01.sh.intel.com (HELO 6eda058d650d) ([10.239.97.150]) by orviesa008.jf.intel.com with ESMTP; 04 Aug 2026 01:35:25 -0700 Received: from kbuild by 6eda058d650d with local (Exim 4.98.2) (envelope-from ) id 1wrAcM-000000009Qe-2zbD; Tue, 04 Aug 2026 08:35:22 +0000 Date: Tue, 04 Aug 2026 16:35:07 +0800 From: kernel test robot To: Ankit Agrawal Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Alex Williamson , Zhi Wang , Shameer Kolothum Subject: drivers/vfio/pci/nvgrace-gpu/main.c:167:9: sparse: sparse: cast from restricted vm_fault_t Message-ID: <202608041648.WGMVLNzJ-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 848acc8ffe1b7cd5f1bf427b93069becfebc2c9d commit: 9db65489b87298f20baef683e70143c108959793 vfio/nvgrace-gpu: Add support for huge pfnmap date: 8 months ago config: alpha-randconfig-r123-20260804 (https://download.01.org/0day-ci/archive/20260804/202608041648.WGMVLNzJ-lkp@intel.com/config) compiler: alpha-linux-gcc (GCC) 8.5.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260804/202608041648.WGMVLNzJ-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 | Fixes: 9db65489b872 ("vfio/nvgrace-gpu: Add support for huge pfnmap") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202608041648.WGMVLNzJ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> drivers/vfio/pci/nvgrace-gpu/main.c:167:9: sparse: sparse: cast from restricted vm_fault_t vim +167 drivers/vfio/pci/nvgrace-gpu/main.c 142 143 static vm_fault_t nvgrace_gpu_vfio_pci_huge_fault(struct vm_fault *vmf, 144 unsigned int order) 145 { 146 struct vm_area_struct *vma = vmf->vma; 147 struct nvgrace_gpu_pci_core_device *nvdev = vma->vm_private_data; 148 struct vfio_pci_core_device *vdev = &nvdev->core_device; 149 unsigned int index = 150 vma->vm_pgoff >> (VFIO_PCI_OFFSET_SHIFT - PAGE_SHIFT); 151 vm_fault_t ret = VM_FAULT_FALLBACK; 152 struct mem_region *memregion; 153 unsigned long pfn, addr; 154 155 memregion = nvgrace_gpu_memregion(index, nvdev); 156 if (!memregion) 157 return VM_FAULT_SIGBUS; 158 159 addr = ALIGN_DOWN(vmf->address, PAGE_SIZE << order); 160 pfn = PHYS_PFN(memregion->memphys) + addr_to_pgoff(vma, addr); 161 162 if (is_aligned_for_order(vma, addr, pfn, order)) { 163 scoped_guard(rwsem_read, &vdev->memory_lock) 164 ret = vfio_pci_vmf_insert_pfn(vdev, vmf, pfn, order); 165 } 166 > 167 dev_dbg_ratelimited(&vdev->pdev->dev, 168 "%s order = %d pfn 0x%lx: 0x%x\n", 169 __func__, order, pfn, 170 (unsigned int)ret); 171 172 return ret; 173 } 174 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki