From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2891239A81B for ; Mon, 2 Mar 2026 10:27:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772447249; cv=none; b=P6Ed0X2Nth4AiL4mv1OYnLTHUv72TQsOv6lfUhgHoZu7IzR+pV2jJZvZv+1+Ipl9Ik+SA/fm1iXVGIxE5jwzcdwKJMv02N8c3+VXcMiDi68dWlAgqxnbOMHCydnaCy6iHs++RvQIXn8zedLiuOA8Vr3wFGy02mcajmG1C2E35Tw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772447249; c=relaxed/simple; bh=w35KvVbA/Kw8b1TRnd18xvdEF+Z3yRhcm4dEgrNzswg=; h=Date:From:To:Cc:Subject:Message-ID; b=XKJeiP0plYRsV3Qo5SiIj3JeBt+UWbglmLLWxvDOagELXPFaOJb6gQuxeBGijJi21nBaoPdoHVBqn3QELymxJG/+BvHeRLUUAbRIAMnRbXEt8DAoYjD7L56igWGdcyWYc5uSCggfhJpM+JiMPuCuV6/gNsTBNQm/EJdlp9izSyI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=BPpcyhlw; arc=none smtp.client-ip=198.175.65.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="BPpcyhlw" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772447248; x=1803983248; h=date:from:to:cc:subject:message-id; bh=w35KvVbA/Kw8b1TRnd18xvdEF+Z3yRhcm4dEgrNzswg=; b=BPpcyhlwkPpu+uLA4R49sk/WOkareD5e5Dlhr8/ykkWmqRsmkWTI4cj9 KJtXOWIUESNzrG6tce3RZdpGkR3Y2s+XonSCQyP4ZlyFaocFkQfJ4tKaP Il2e6GUjdAvVaMQo77elRkJnmzuRYIFryWXER1xKFjDShsgZYHAoj4U1V fAZjhPgjTMPj7A3chb+QPXKGdgX7t3JAlbIEmrXoxZ/3V3JDHJWm2Wk4V efPMP8vgve+fQnVKwVrjWH8SUbKcLlXFF4XBiEv9EDL9H1N/mAb6PyOmv f6oi/dYYcJ9anZRBpyUra9x2m7k5yJSTJtSah0LLjDpnApu9OkTLPEOaO w==; X-CSE-ConnectionGUID: OHgHKIztSRuAN7dnimnNEQ== X-CSE-MsgGUID: gjtnz6yMRb+vGuieSZkbrQ== X-IronPort-AV: E=McAfee;i="6800,10657,11716"; a="77289436" X-IronPort-AV: E=Sophos;i="6.21,319,1763452800"; d="scan'208";a="77289436" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by orvoesa106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2026 02:27:28 -0800 X-CSE-ConnectionGUID: X9K0Z+l8RO6plZ4EMe08Wg== X-CSE-MsgGUID: rKZoWgVuT9mMFZUeNb7sBA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,319,1763452800"; d="scan'208";a="217636058" Received: from lkp-server01.sh.intel.com (HELO f27a57aa7a36) ([10.239.97.150]) by orviesa008.jf.intel.com with ESMTP; 02 Mar 2026 02:27:26 -0800 Received: from kbuild by f27a57aa7a36 with local (Exim 4.98.2) (envelope-from ) id 1vx0Ul-000000000jZ-00p8; Mon, 02 Mar 2026 10:27:23 +0000 Date: Mon, 02 Mar 2026 18:26:26 +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: <202603021851.Tj2pQDEI-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: 11439c4635edd669ae435eec308f4ab8a0804808 commit: 9db65489b87298f20baef683e70143c108959793 vfio/nvgrace-gpu: Add support for huge pfnmap date: 3 months ago config: um-randconfig-r121-20260302 (https://download.01.org/0day-ci/archive/20260302/202603021851.Tj2pQDEI-lkp@intel.com/config) compiler: gcc-14 (Debian 14.2.0-19) 14.2.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260302/202603021851.Tj2pQDEI-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202603021851.Tj2pQDEI-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 drivers/vfio/pci/nvgrace-gpu/main.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, ...): arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero? drivers/vfio/pci/nvgrace-gpu/main.c:371:40: sparse: signed value source arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero? drivers/vfio/pci/nvgrace-gpu/main.c:410:42: sparse: signed value source arch/um/include/asm/uaccess.h:45:18: sparse: sparse: unsigned value that used to be signed checked against zero? drivers/vfio/pci/nvgrace-gpu/main.c:556:23: sparse: signed value source 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