tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 9ff50bf2f2ff5fab01cac26d8eed21a89308e6ef commit: 8f28ca6bd8211214faf717677bbffe375c2a6072 iomap: constify ioreadX() iomem argument (as in generic implementation) date: 1 year ago config: alpha-randconfig-s031-20210813 (attached as .config) compiler: alpha-linux-gcc (GCC) 10.3.0 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: v0.6.3-348-gf0e6938b-dirty # 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 8f28ca6bd8211214faf717677bbffe375c2a6072 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=alpha 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/uio/uio_aec.c:44:49: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected void [noderef] __iomem *int_flag @@ got void * @@ drivers/uio/uio_aec.c:44:49: sparse: expected void [noderef] __iomem *int_flag drivers/uio/uio_aec.c:44:49: sparse: got void * drivers/uio/uio_aec.c:50:49: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:50:49: sparse: got void * drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:59:9: sparse: got void * drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:59:9: sparse: got void * drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:59:9: sparse: got void * drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:59:9: sparse: got void * drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:59:9: sparse: got void * drivers/uio/uio_aec.c:59:9: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:59:9: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:59:9: sparse: got void * drivers/uio/uio_aec.c:88:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *priv @@ got void [noderef] __iomem * @@ drivers/uio/uio_aec.c:88:20: sparse: expected void *priv drivers/uio/uio_aec.c:88:20: sparse: got void [noderef] __iomem * drivers/uio/uio_aec.c:104:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:104:42: sparse: expected void [noderef] __iomem *addr drivers/uio/uio_aec.c:104:42: sparse: got void * drivers/uio/uio_aec.c:105:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:105:43: sparse: expected void [noderef] __iomem *addr drivers/uio/uio_aec.c:105:43: sparse: got void * drivers/uio/uio_aec.c:106:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:106:34: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:106:34: sparse: got void * drivers/uio/uio_aec.c:115:31: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem * @@ got void *priv @@ drivers/uio/uio_aec.c:115:31: sparse: expected void [noderef] __iomem * drivers/uio/uio_aec.c:115:31: sparse: got void *priv drivers/uio/uio_aec.c:130:42: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:130:42: sparse: expected void [noderef] __iomem *addr drivers/uio/uio_aec.c:130:42: sparse: got void * drivers/uio/uio_aec.c:131:43: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:131:43: sparse: expected void [noderef] __iomem *addr drivers/uio/uio_aec.c:131:43: sparse: got void * drivers/uio/uio_aec.c:133:28: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const [noderef] __iomem *addr @@ got void * @@ drivers/uio/uio_aec.c:133:28: sparse: expected void const [noderef] __iomem *addr drivers/uio/uio_aec.c:133:28: sparse: got void * drivers/uio/uio_aec.c:138:21: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *priv @@ drivers/uio/uio_aec.c:138:21: sparse: expected void volatile [noderef] __iomem *addr drivers/uio/uio_aec.c:138:21: sparse: got void *priv vim +50 drivers/uio/uio_aec.c 1bafeb378e915f Brandon Philips 2009-01-27 41 1bafeb378e915f Brandon Philips 2009-01-27 42 static irqreturn_t aectc_irq(int irq, struct uio_info *dev_info) 1bafeb378e915f Brandon Philips 2009-01-27 43 { 1bafeb378e915f Brandon Philips 2009-01-27 44 void __iomem *int_flag = dev_info->priv + INTA_DRVR_ADDR; 1bafeb378e915f Brandon Philips 2009-01-27 45 unsigned char status = ioread8(int_flag); 1bafeb378e915f Brandon Philips 2009-01-27 46 1bafeb378e915f Brandon Philips 2009-01-27 47 1bafeb378e915f Brandon Philips 2009-01-27 48 if ((status & INTA_ENABLED_FLAG) && (status & INTA_FLAG)) { 1bafeb378e915f Brandon Philips 2009-01-27 49 /* application writes 0x00 to 0x2F to get next interrupt */ 1bafeb378e915f Brandon Philips 2009-01-27 @50 status = ioread8(dev_info->priv + MAILBOX); 1bafeb378e915f Brandon Philips 2009-01-27 51 return IRQ_HANDLED; 1bafeb378e915f Brandon Philips 2009-01-27 52 } 1bafeb378e915f Brandon Philips 2009-01-27 53 1bafeb378e915f Brandon Philips 2009-01-27 54 return IRQ_NONE; 1bafeb378e915f Brandon Philips 2009-01-27 55 } 1bafeb378e915f Brandon Philips 2009-01-27 56 :::::: The code at line 50 was first introduced by commit :::::: 1bafeb378e915f39b1bf44ee0871823d6f402ea5 uio: add the uio_aec driver :::::: TO: Brandon Philips <brandon(a)ifup.org&gt; :::::: CC: Greg Kroah-Hartman <gregkh(a)suse.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org