drivers/uio/uio_aec.c:50:49: sparse: sparse: incorrect type in argument 1 (different address spaces)

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/?id=8f28ca6bd8211214faf717677bbffe375c2a6072
        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 <redacted>


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 *

quoted

drivers/uio/uio_aec.c:50:49: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void const [noderef] __iomem *addr @@     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 [off-list ref]
:::::: CC: Greg Kroah-Hartman [off-list ref]

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org