tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f873db9acd3c92d4741bc3676c9eb511b2f9a6f6 commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces date: 9 weeks ago config: riscv-randconfig-s032-20200822 (attached as .config) compiler: riscv32-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.2-191-g10164920-dirty git checkout 670d0a4b10704667765f7d18f7592993d02783aa # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=riscv If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) drivers/staging/comedi/drivers/addi_apci_3120.c:164:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:165:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:165:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:165:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:165:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:167:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:167:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:167:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:167:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:168:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:168:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:168:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:168:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:177:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:177:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:177:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:177:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:185:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:185:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:185:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:185:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:195:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:195:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:195:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:195:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:199:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:199:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:199:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:199:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:310:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:310:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:319:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:319:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:319:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:319:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:322:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:322:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:322:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:322:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:326:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:326:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:326:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:326:17: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:329:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:329:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:329:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:329:17: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:340:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:340:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:340:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:340:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:343:15: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:343:15: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:343:15: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:343:15: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:347:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:347:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:347:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:347:17: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:350:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:350:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:350:25: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:350:25: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:363:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:363:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:363:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:363:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:375:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:375:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:375:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:375:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:386:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:386:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:386:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:386:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:409:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:409:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:409:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:409:17: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:413:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:413:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:413:9: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:413:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:417:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:417:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:417:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:417:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:436:37: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:436:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:436:37: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:436:37: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:479:18: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:479:18: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:479:18: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:479:18: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:480:20: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:480:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:480:20: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:480:20: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:488:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:488:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:488:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:488:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:504:31: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:504:31: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:504:31: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:504:31: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:509:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:509:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:509:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:509:17: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:522:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:522:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:522:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:522:17: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:548:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:548:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:548:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:548:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:583:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:583:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:583:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:583:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:668:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:668:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:668:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/addi_apci_3120.c:668:9: sparse: got void * drivers/staging/comedi/drivers/addi_apci_3120.c:674:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/addi_apci_3120.c:674:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/addi_apci_3120.c:674:9: sparse: expected void volatile [noderef] __iomem *addr -- drivers/staging/comedi/drivers/ke_counter.c:54:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:55:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:55:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:55:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:55:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:56:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:56:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:56:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:56:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:57:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:57:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:57:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:57:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:74:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:74:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:76:23: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:76:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:76:23: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:76:23: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:77:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:77:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:77:25: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:77:25: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:78:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:78:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:78:25: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:78:25: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:79:25: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:79:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:79:25: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:79:25: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:92:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:92:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:92:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:92:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:117:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:117:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:117:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:117:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:120:23: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:120:23: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:120:23: sparse: expected void const volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:120:23: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:154:17: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:154:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:154:17: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:154:17: sparse: got void * drivers/staging/comedi/drivers/ke_counter.c:195:9: sparse: sparse: cast removes address space '__iomem' of expression drivers/staging/comedi/drivers/ke_counter.c:195:9: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void * @@ drivers/staging/comedi/drivers/ke_counter.c:195:9: sparse: expected void volatile [noderef] __iomem *addr drivers/staging/comedi/drivers/ke_counter.c:195:9: sparse: got void * # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 670d0a4b10704667765f7d18f7592993d02783aa vim +/__iomem +164 drivers/staging/comedi/drivers/addi_apci_3120.c 4e068bec48c6c2 H Hartley Sweeten 2014-10-14 156 0b7defa70227f7 H Hartley Sweeten 2014-11-04 157 static void apci3120_addon_write(struct comedi_device *dev, 0b7defa70227f7 H Hartley Sweeten 2014-11-04 158 unsigned int val, unsigned int reg) 0b7defa70227f7 H Hartley Sweeten 2014-11-04 159 { 0b7defa70227f7 H Hartley Sweeten 2014-11-04 160 struct apci3120_private *devpriv = dev->private; 0b7defa70227f7 H Hartley Sweeten 2014-11-04 161 0b7defa70227f7 H Hartley Sweeten 2014-11-04 162 /* 16-bit interface for AMCC add-on registers */ 0b7defa70227f7 H Hartley Sweeten 2014-11-04 163 0b7defa70227f7 H Hartley Sweeten 2014-11-04 @164 outw(reg, devpriv->addon + APCI3120_ADDON_ADDR_REG); 0b7defa70227f7 H Hartley Sweeten 2014-11-04 165 outw(val & 0xffff, devpriv->addon + APCI3120_ADDON_DATA_REG); 0b7defa70227f7 H Hartley Sweeten 2014-11-04 166 0b7defa70227f7 H Hartley Sweeten 2014-11-04 167 outw(reg + 2, devpriv->addon + APCI3120_ADDON_ADDR_REG); 0b7defa70227f7 H Hartley Sweeten 2014-11-04 168 outw((val >> 16) & 0xffff, devpriv->addon + APCI3120_ADDON_DATA_REG); 0b7defa70227f7 H Hartley Sweeten 2014-11-04 169 } 0b7defa70227f7 H Hartley Sweeten 2014-11-04 170 ee844c51ef0451 H Hartley Sweeten 2014-11-04 171 static void apci3120_init_dma(struct comedi_device *dev, ee844c51ef0451 H Hartley Sweeten 2014-11-04 172 struct apci3120_dmabuf *dmabuf) ee844c51ef0451 H Hartley Sweeten 2014-11-04 173 { ee844c51ef0451 H Hartley Sweeten 2014-11-04 174 struct apci3120_private *devpriv = dev->private; ee844c51ef0451 H Hartley Sweeten 2014-11-04 175 ee844c51ef0451 H Hartley Sweeten 2014-11-04 176 /* AMCC - enable transfer count and reset A2P FIFO */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 177 outl(AGCSTS_TC_ENABLE | AGCSTS_RESET_A2P_FIFO, ee844c51ef0451 H Hartley Sweeten 2014-11-04 178 devpriv->amcc + AMCC_OP_REG_AGCSTS); ee844c51ef0451 H Hartley Sweeten 2014-11-04 179 ee844c51ef0451 H Hartley Sweeten 2014-11-04 180 /* Add-On - enable transfer count and reset A2P FIFO */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 181 apci3120_addon_write(dev, AGCSTS_TC_ENABLE | AGCSTS_RESET_A2P_FIFO, ee844c51ef0451 H Hartley Sweeten 2014-11-04 182 AMCC_OP_REG_AGCSTS); ee844c51ef0451 H Hartley Sweeten 2014-11-04 183 ee844c51ef0451 H Hartley Sweeten 2014-11-04 184 /* AMCC - enable transfers and reset A2P flags */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 185 outl(RESET_A2P_FLAGS | EN_A2P_TRANSFERS, ee844c51ef0451 H Hartley Sweeten 2014-11-04 186 devpriv->amcc + AMCC_OP_REG_MCSR); ee844c51ef0451 H Hartley Sweeten 2014-11-04 187 ee844c51ef0451 H Hartley Sweeten 2014-11-04 188 /* Add-On - DMA start address */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 189 apci3120_addon_write(dev, dmabuf->hw, AMCC_OP_REG_AMWAR); ee844c51ef0451 H Hartley Sweeten 2014-11-04 190 ee844c51ef0451 H Hartley Sweeten 2014-11-04 191 /* Add-On - Number of acquisitions */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 192 apci3120_addon_write(dev, dmabuf->use_size, AMCC_OP_REG_AMWTC); ee844c51ef0451 H Hartley Sweeten 2014-11-04 193 ee844c51ef0451 H Hartley Sweeten 2014-11-04 194 /* AMCC - enable write complete (DMA) and set FIFO advance */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 @195 outl(APCI3120_FIFO_ADVANCE_ON_BYTE_2 | AINT_WRITE_COMPL, ee844c51ef0451 H Hartley Sweeten 2014-11-04 196 devpriv->amcc + AMCC_OP_REG_INTCSR); ee844c51ef0451 H Hartley Sweeten 2014-11-04 197 ee844c51ef0451 H Hartley Sweeten 2014-11-04 198 /* Add-On - enable DMA */ ee844c51ef0451 H Hartley Sweeten 2014-11-04 199 outw(APCI3120_ADDON_CTRL_AMWEN_ENA | APCI3120_ADDON_CTRL_A2P_FIFO_ENA, ee844c51ef0451 H Hartley Sweeten 2014-11-04 200 devpriv->addon + APCI3120_ADDON_CTRL_REG); ee844c51ef0451 H Hartley Sweeten 2014-11-04 201 } ee844c51ef0451 H Hartley Sweeten 2014-11-04 202 45062492281d2c H Hartley Sweeten 2014-11-04 203 static void apci3120_setup_dma(struct comedi_device *dev, 45062492281d2c H Hartley Sweeten 2014-11-04 204 struct comedi_subdevice *s) 45062492281d2c H Hartley Sweeten 2014-11-04 205 { 45062492281d2c H Hartley Sweeten 2014-11-04 206 struct apci3120_private *devpriv = dev->private; 45062492281d2c H Hartley Sweeten 2014-11-04 207 struct comedi_cmd *cmd = &s->async->cmd; 45062492281d2c H Hartley Sweeten 2014-11-04 208 struct apci3120_dmabuf *dmabuf0 = &devpriv->dmabuf[0]; 45062492281d2c H Hartley Sweeten 2014-11-04 209 struct apci3120_dmabuf *dmabuf1 = &devpriv->dmabuf[1]; 45062492281d2c H Hartley Sweeten 2014-11-04 210 unsigned int dmalen0 = dmabuf0->size; 45062492281d2c H Hartley Sweeten 2014-11-04 211 unsigned int dmalen1 = dmabuf1->size; 45062492281d2c H Hartley Sweeten 2014-11-04 212 unsigned int scan_bytes; 45062492281d2c H Hartley Sweeten 2014-11-04 213 45062492281d2c H Hartley Sweeten 2014-11-04 214 scan_bytes = comedi_samples_to_bytes(s, cmd->scan_end_arg); 45062492281d2c H Hartley Sweeten 2014-11-04 215 45062492281d2c H Hartley Sweeten 2014-11-04 216 if (cmd->stop_src == TRIG_COUNT) { 45062492281d2c H Hartley Sweeten 2014-11-04 217 /* 45062492281d2c H Hartley Sweeten 2014-11-04 218 * Must we fill full first buffer? And must we fill 45062492281d2c H Hartley Sweeten 2014-11-04 219 * full second buffer when first is once filled? 45062492281d2c H Hartley Sweeten 2014-11-04 220 */ 45062492281d2c H Hartley Sweeten 2014-11-04 221 if (dmalen0 > (cmd->stop_arg * scan_bytes)) 45062492281d2c H Hartley Sweeten 2014-11-04 222 dmalen0 = cmd->stop_arg * scan_bytes; 45062492281d2c H Hartley Sweeten 2014-11-04 223 else if (dmalen1 > (cmd->stop_arg * scan_bytes - dmalen0)) 45062492281d2c H Hartley Sweeten 2014-11-04 224 dmalen1 = cmd->stop_arg * scan_bytes - dmalen0; 45062492281d2c H Hartley Sweeten 2014-11-04 225 } 45062492281d2c H Hartley Sweeten 2014-11-04 226 45062492281d2c H Hartley Sweeten 2014-11-04 227 if (cmd->flags & CMDF_WAKE_EOS) { 45062492281d2c H Hartley Sweeten 2014-11-04 228 /* don't we want wake up every scan? */ 45062492281d2c H Hartley Sweeten 2014-11-04 229 if (dmalen0 > scan_bytes) { 45062492281d2c H Hartley Sweeten 2014-11-04 230 dmalen0 = scan_bytes; 45062492281d2c H Hartley Sweeten 2014-11-04 231 if (cmd->scan_end_arg & 1) 45062492281d2c H Hartley Sweeten 2014-11-04 232 dmalen0 += 2; 45062492281d2c H Hartley Sweeten 2014-11-04 233 } 45062492281d2c H Hartley Sweeten 2014-11-04 234 if (dmalen1 > scan_bytes) { 45062492281d2c H Hartley Sweeten 2014-11-04 235 dmalen1 = scan_bytes; 45062492281d2c H Hartley Sweeten 2014-11-04 236 if (cmd->scan_end_arg & 1) 45062492281d2c H Hartley Sweeten 2014-11-04 237 dmalen1 -= 2; 45062492281d2c H Hartley Sweeten 2014-11-04 238 if (dmalen1 < 4) 45062492281d2c H Hartley Sweeten 2014-11-04 239 dmalen1 = 4; 45062492281d2c H Hartley Sweeten 2014-11-04 240 } 45062492281d2c H Hartley Sweeten 2014-11-04 241 } else { 45062492281d2c H Hartley Sweeten 2014-11-04 242 /* isn't output buff smaller that our DMA buff? */ 45062492281d2c H Hartley Sweeten 2014-11-04 243 if (dmalen0 > s->async->prealloc_bufsz) 45062492281d2c H Hartley Sweeten 2014-11-04 244 dmalen0 = s->async->prealloc_bufsz; 45062492281d2c H Hartley Sweeten 2014-11-04 245 if (dmalen1 > s->async->prealloc_bufsz) 45062492281d2c H Hartley Sweeten 2014-11-04 246 dmalen1 = s->async->prealloc_bufsz; 45062492281d2c H Hartley Sweeten 2014-11-04 247 } 45062492281d2c H Hartley Sweeten 2014-11-04 248 dmabuf0->use_size = dmalen0; 45062492281d2c H Hartley Sweeten 2014-11-04 249 dmabuf1->use_size = dmalen1; 45062492281d2c H Hartley Sweeten 2014-11-04 250 45062492281d2c H Hartley Sweeten 2014-11-04 251 apci3120_init_dma(dev, dmabuf0); 45062492281d2c H Hartley Sweeten 2014-11-04 252 } 45062492281d2c H Hartley Sweeten 2014-11-04 253 546bf3382e41b8 H Hartley Sweeten 2014-11-04 254 /* 546bf3382e41b8 H Hartley Sweeten 2014-11-04 255 * There are three timers on the board. They all use the same base 546bf3382e41b8 H Hartley Sweeten 2014-11-04 256 * clock with a fixed prescaler for each timer. The base clock used 546bf3382e41b8 H Hartley Sweeten 2014-11-04 257 * depends on the board version and type. 546bf3382e41b8 H Hartley Sweeten 2014-11-04 258 * 546bf3382e41b8 H Hartley Sweeten 2014-11-04 259 * APCI-3120 Rev A boards OSC = 14.29MHz base clock (~70ns) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 260 * APCI-3120 Rev B boards OSC = 20MHz base clock (50ns) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 261 * APCI-3001 boards OSC = 20MHz base clock (50ns) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 262 * 546bf3382e41b8 H Hartley Sweeten 2014-11-04 263 * The prescalers for each timer are: 546bf3382e41b8 H Hartley Sweeten 2014-11-04 264 * Timer 0 CLK = OSC/10 546bf3382e41b8 H Hartley Sweeten 2014-11-04 265 * Timer 1 CLK = OSC/1000 546bf3382e41b8 H Hartley Sweeten 2014-11-04 266 * Timer 2 CLK = OSC/1000 546bf3382e41b8 H Hartley Sweeten 2014-11-04 267 */ 546bf3382e41b8 H Hartley Sweeten 2014-11-04 268 static unsigned int apci3120_ns_to_timer(struct comedi_device *dev, 546bf3382e41b8 H Hartley Sweeten 2014-11-04 269 unsigned int timer, 546bf3382e41b8 H Hartley Sweeten 2014-11-04 270 unsigned int ns, 546bf3382e41b8 H Hartley Sweeten 2014-11-04 271 unsigned int flags) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 272 { 546bf3382e41b8 H Hartley Sweeten 2014-11-04 273 struct apci3120_private *devpriv = dev->private; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 274 unsigned int prescale = (timer == 0) ? 10 : 1000; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 275 unsigned int timer_base = devpriv->osc_base * prescale; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 276 unsigned int divisor; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 277 546bf3382e41b8 H Hartley Sweeten 2014-11-04 278 switch (flags & CMDF_ROUND_MASK) { 546bf3382e41b8 H Hartley Sweeten 2014-11-04 279 case CMDF_ROUND_UP: 546bf3382e41b8 H Hartley Sweeten 2014-11-04 280 divisor = DIV_ROUND_UP(ns, timer_base); 546bf3382e41b8 H Hartley Sweeten 2014-11-04 281 break; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 282 case CMDF_ROUND_DOWN: 546bf3382e41b8 H Hartley Sweeten 2014-11-04 283 divisor = ns / timer_base; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 284 break; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 285 case CMDF_ROUND_NEAREST: 546bf3382e41b8 H Hartley Sweeten 2014-11-04 286 default: 546bf3382e41b8 H Hartley Sweeten 2014-11-04 287 divisor = DIV_ROUND_CLOSEST(ns, timer_base); 546bf3382e41b8 H Hartley Sweeten 2014-11-04 288 break; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 289 } 546bf3382e41b8 H Hartley Sweeten 2014-11-04 290 546bf3382e41b8 H Hartley Sweeten 2014-11-04 291 if (timer == 2) { 546bf3382e41b8 H Hartley Sweeten 2014-11-04 292 /* timer 2 is 24-bits */ 546bf3382e41b8 H Hartley Sweeten 2014-11-04 293 if (divisor > 0x00ffffff) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 294 divisor = 0x00ffffff; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 295 } else { 546bf3382e41b8 H Hartley Sweeten 2014-11-04 296 /* timers 0 and 1 are 16-bits */ 546bf3382e41b8 H Hartley Sweeten 2014-11-04 297 if (divisor > 0xffff) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 298 divisor = 0xffff; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 299 } 546bf3382e41b8 H Hartley Sweeten 2014-11-04 300 /* the timers require a minimum divisor of 2 */ 546bf3382e41b8 H Hartley Sweeten 2014-11-04 301 if (divisor < 2) 546bf3382e41b8 H Hartley Sweeten 2014-11-04 302 divisor = 2; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 303 546bf3382e41b8 H Hartley Sweeten 2014-11-04 304 return divisor; 546bf3382e41b8 H Hartley Sweeten 2014-11-04 305 } 546bf3382e41b8 H Hartley Sweeten 2014-11-04 306 24e18c85e57255 H Hartley Sweeten 2014-11-04 307 static void apci3120_clr_timer2_interrupt(struct comedi_device *dev) 24e18c85e57255 H Hartley Sweeten 2014-11-04 308 { 24e18c85e57255 H Hartley Sweeten 2014-11-04 309 /* a dummy read of APCI3120_CTR0_REG clears the timer 2 interrupt */ 24e18c85e57255 H Hartley Sweeten 2014-11-04 @310 inb(dev->iobase + APCI3120_CTR0_REG); 24e18c85e57255 H Hartley Sweeten 2014-11-04 311 } 24e18c85e57255 H Hartley Sweeten 2014-11-04 312 :::::: The code at line 164 was first introduced by commit :::::: 0b7defa70227f7c7f313e0ea4f0eeb88c5de79a3 staging: comedi: addi_apci_3120: move apci3120_addon_write() to driver :::::: TO: H Hartley Sweeten <hsweeten(a)visionengravers.com&gt; :::::: CC: Greg Kroah-Hartman <gregkh(a)linuxfoundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org