tree: https://github.com/afaerber/linux.git rtd1295-next head: cc9d1d90869a1d7a6e44c5dd739a2f25d6f13213 commit: 969b870a4c79d2d25da90dfd87f0a7032d652b5c [5/166] hwspinlock: Add Realtek RTD1195 SB2 reproduce: # apt-get install sparse # sparse version: git checkout 969b870a4c79d2d25da90dfd87f0a7032d652b5c make ARCH=x86_64 allmodconfig make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/hwspinlock/rtd1195_sb2_sem.c:73:28: sparse: expected void *priv drivers/hwspinlock/rtd1195_sb2_sem.c:73:28: sparse: got void [noderef] <asn:2> * sparse warnings: (new ones prefixed by >>) drivers/hwspinlock/rtd1195_sb2_sem.c:73:28: sparse: warning: incorrect type in assignment (different address spaces) vim +73 drivers/hwspinlock/rtd1195_sb2_sem.c 46 47 static int rtd1195_sb2_sem_probe(struct platform_device *pdev) 48 { 49 struct rtd1195_sb2_sem *sem; 50 struct hwspinlock *lock; 51 struct resource *res; 52 int i, num; 53 54 res = platform_get_resource(pdev, IORESOURCE_MEM, 0); 55 if (!res) 56 return -ENOMEM; 57 58 num = resource_size(res) / 4; 59 60 sem = devm_kzalloc(&pdev->dev, sizeof(*sem) + num * sizeof(*lock), 61 GFP_KERNEL); 62 if (!sem) 63 return -ENOMEM; 64 65 sem->pdev = pdev; 66 67 sem->base = of_iomap(pdev->dev.of_node, 0); 68 if (!sem->base) 69 return -ENOMEM; 70 71 for (i = 0; i < num; i++) { 72 lock = &sem->lockdev.lock[i]; 74 } 75 76 platform_set_drvdata(pdev, sem); 77 78 sem->base_id = idr_alloc(&rtd1195_sb2_sem_idr, sem, 0, 0, GFP_KERNEL); 79 80 return devm_hwspin_lock_register(&pdev->dev, &sem->lockdev, 81 &rtd1195_sb2_sem_hwspinlock_ops, sem->base_id, num); 82 } 83 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org