tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 0c947b893d69231a9add855939da7c66237ab44f commit: 8f28ca6bd8211214faf717677bbffe375c2a6072 iomap: constify ioreadX() iomem argument (as in generic implementation) date: 1 year, 5 months ago config: alpha-randconfig-s031-20220117 (https://download.01.org/0day-ci/archive/20220118/202201180418.XVpvcyjG-lk...) compiler: alpha-linux-gcc (GCC) 11.2.0 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: v0.6.4-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 config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha SHELL=/bin/bash drivers/pci/controller/ drivers/spi/ 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/spi/spi-lp8841-rtc.c:112:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:112:41: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:112:41: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:121:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:121:41: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:121:41: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:143:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:143:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:143:33: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:147:41: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:147:41: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:147:41: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:209:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *iomem @@ got void [noderef] __iomem * @@ drivers/spi/spi-lp8841-rtc.c:209:21: sparse: expected void *iomem drivers/spi/spi-lp8841-rtc.c:209:21: sparse: got void [noderef] __iomem * drivers/spi/spi-lp8841-rtc.c:57:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:57:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:57:33: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:63:28: sparse: expected void const [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:63:28: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:47:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:47:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:47:33: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:47:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:47:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:47:33: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:57:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:57:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:57:33: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:63:28: sparse: expected void const [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:63:28: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:47:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:47:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:47:33: sparse: got void *iomem drivers/spi/spi-lp8841-rtc.c:47:33: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *iomem @@ drivers/spi/spi-lp8841-rtc.c:47:33: sparse: expected void volatile [noderef] __iomem *addr drivers/spi/spi-lp8841-rtc.c:47:33: sparse: got void *iomem vim +63 drivers/spi/spi-lp8841-rtc.c 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 59 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 60 static inline int 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 61 getmiso(struct spi_lp8841_rtc *data) 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 62 { 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 @63 return ioread8(data->iomem) & SPI_LP8841_RTC_MISO; 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 64 } 7ecbfff6711fb3 Sergei Ianovich 2016-02-23 65 :::::: The code at line 63 was first introduced by commit :::::: 7ecbfff6711fb331591003ac32c002ce55a0758f spi: master driver to enable RTC on ICPDAS LP-8841 :::::: TO: Sergei Ianovich <ynvich(a)gmail.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org