tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 471e638c4c5df4c0035a76a561ada4d28228e5fd commit: 85e8dd4059a9511643e88121e379f6ef81cec712 [14111/14117] iomap: constify ioreadX() iomem argument (as in generic implementation) config: i386-randconfig-s001-20200809 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.2-118-ge1578773-dirty git checkout 85e8dd4059a9511643e88121e379f6ef81cec712 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 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/clocksource/timer-nps.c:84:52: sparse: got void * drivers/clocksource/timer-nps.c:103:37: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void [noderef] __iomem * @@ got void ** @@ drivers/clocksource/timer-nps.c:103:37: sparse: expected void [noderef] __iomem * drivers/clocksource/timer-nps.c:103:37: sparse: got void ** -- 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: 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: 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 +84 drivers/clocksource/timer-nps.c a53224577e317d Noam Camus 2015-10-17 79 a5a1d1c2914b53 Thomas Gleixner 2016-12-21 80 static u64 nps_clksrc_read(struct clocksource *clksrc) a53224577e317d Noam Camus 2015-10-17 81 { a53224577e317d Noam Camus 2015-10-17 82 int cluster = raw_smp_processor_id() >> NPS_CLUSTER_OFFSET; a53224577e317d Noam Camus 2015-10-17 83 a5a1d1c2914b53 Thomas Gleixner 2016-12-21 @84 return (u64)ioread32be(nps_msu_reg_low_addr[cluster]); a53224577e317d Noam Camus 2015-10-17 85 } a53224577e317d Noam Camus 2015-10-17 86 :::::: The code at line 84 was first introduced by commit :::::: a5a1d1c2914b5316924c7893eb683a5420ebd3be clocksource: Use a plain u64 instead of cycle_t :::::: TO: Thomas Gleixner <tglx(a)linutronix.de&gt; :::::: CC: Thomas Gleixner <tglx(a)linutronix.de&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org