linux-kernel - drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:305:47: sparse: sparse: incorrect type in assignment (different base types)

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Message-ID: <202508142105.Jb5Smjsg-lkp@intel.com>
Date: Thu, 14 Aug 2025 21:21:50 +0800
From: kernel test robot <lkp@...el.com>
To: Nicolin Chen <nicolinc@...dia.com>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Jason Gunthorpe <jgg@...pe.ca>,
	Alok Tiwari <alok.a.tiwari@...cle.com>,
	Pranjal Shrivastava <praan@...gle.com>
Subject: drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:305:47: sparse:
 sparse: incorrect type in assignment (different base types)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   0cc53520e68bea7fb80fdc6bdf8d226d1b6a98d9
commit: 32b2d3a57e26804ca96d82a222667ac0fa226cb7 iommu/tegra241-cmdqv: Add IOMMU_VEVENTQ_TYPE_TEGRA241_CMDQV support
date:   5 weeks ago
config: arm64-randconfig-r112-20250814 (https://download.01.org/0day-ci/archive/20250814/202508142105.Jb5Smjsg-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 3769ce013be2879bf0b329c14a16f5cb766f26ce)
reproduce: (https://download.01.org/0day-ci/archive/20250814/202508142105.Jb5Smjsg-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202508142105.Jb5Smjsg-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:305:47: sparse: sparse: incorrect type in assignment (different base types) @@     expected restricted __le64 @@     got unsigned long long @@
   drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:305:47: sparse:     expected restricted __le64
   drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c:305:47: sparse:     got unsigned long long

vim +305 drivers/iommu/arm/arm-smmu-v3/tegra241-cmdqv.c

   297	
   298	static void tegra241_vintf_user_handle_error(struct tegra241_vintf *vintf)
   299	{
   300		struct iommufd_viommu *viommu = &vintf->vsmmu.core;
   301		struct iommu_vevent_tegra241_cmdqv vevent_data;
   302		int i;
   303	
   304		for (i = 0; i < LVCMDQ_ERR_MAP_NUM_64; i++)
 > 305			vevent_data.lvcmdq_err_map[i] =
   306				readq_relaxed(REG_VINTF(vintf, LVCMDQ_ERR_MAP_64(i)));
   307	
   308		iommufd_viommu_report_event(viommu, IOMMU_VEVENTQ_TYPE_TEGRA241_CMDQV,
   309					    &vevent_data, sizeof(vevent_data));
   310	}
   311	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki