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Date:   Mon, 24 Aug 2020 17:50:32 +0800
From:   kernel test robot <lkp@...el.com>
To:     Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: drivers/ide/falconide.c:67:17: 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:   d012a7190fc1fd72ed48911e77ca97ba4521bccd
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   10 weeks ago
config: m68k-randconfig-s032-20200824 (attached as .config)
compiler: m68k-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=m68k 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/ide/falconide.c:67:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected unsigned short volatile [noderef] [usertype] __iomem *port @@     got unsigned short [usertype] * @@
>> drivers/ide/falconide.c:67:17: sparse:     expected unsigned short volatile [noderef] [usertype] __iomem *port
   drivers/ide/falconide.c:67:17: sparse:     got unsigned short [usertype] *
   drivers/ide/falconide.c:71:25: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected unsigned short volatile [noderef] [usertype] __iomem *port @@     got unsigned short [usertype] * @@
   drivers/ide/falconide.c:71:25: sparse:     expected unsigned short volatile [noderef] [usertype] __iomem *port
   drivers/ide/falconide.c:71:25: sparse:     got unsigned short [usertype] *
   drivers/ide/falconide.c:80:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected unsigned short volatile [noderef] [usertype] __iomem *port @@     got unsigned short [usertype] * @@
   drivers/ide/falconide.c:80:17: sparse:     expected unsigned short volatile [noderef] [usertype] __iomem *port
   drivers/ide/falconide.c:80:17: sparse:     got unsigned short [usertype] *
   drivers/ide/falconide.c:84:26: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected unsigned short volatile [noderef] [usertype] __iomem *port @@     got unsigned short [usertype] * @@
   drivers/ide/falconide.c:84:26: sparse:     expected unsigned short volatile [noderef] [usertype] __iomem *port
   drivers/ide/falconide.c:84:26: sparse:     got unsigned short [usertype] *

# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=670d0a4b10704667765f7d18f7592993d02783aa
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 +67 drivers/ide/falconide.c

^1da177e4c3f41 drivers/ide/legacy/falconide.c Linus Torvalds            2005-04-16  60  
adb1af9803d167 drivers/ide/falconide.c        Bartlomiej Zolnierkiewicz 2009-03-27  61  static void falconide_input_data(ide_drive_t *drive, struct ide_cmd *cmd,
9567b349f7e7dd drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  62  				 void *buf, unsigned int len)
92d3ab27e8fd23 drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  63  {
9567b349f7e7dd drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  64  	unsigned long data_addr = drive->hwif->io_ports.data_addr;
92d3ab27e8fd23 drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  65  
d18812070efc65 drivers/ide/falconide.c        Geert Uytterhoeven        2009-04-08  66  	if (drive->media == ide_disk && cmd && (cmd->tf_flags & IDE_TFLAG_FS)) {
d18812070efc65 drivers/ide/falconide.c        Geert Uytterhoeven        2009-04-08 @67  		__ide_mm_insw(data_addr, buf, (len + 1) / 2);
d18812070efc65 drivers/ide/falconide.c        Geert Uytterhoeven        2009-04-08  68  		return;
d18812070efc65 drivers/ide/falconide.c        Geert Uytterhoeven        2009-04-08  69  	}
92d3ab27e8fd23 drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  70  
f94116aeec7a29 drivers/ide/falconide.c        Bartlomiej Zolnierkiewicz 2009-03-27  71  	raw_insw_swapw((u16 *)data_addr, buf, (len + 1) / 2);
92d3ab27e8fd23 drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  72  }
92d3ab27e8fd23 drivers/ide/legacy/falconide.c Bartlomiej Zolnierkiewicz 2008-04-28  73  

:::::: The code at line 67 was first introduced by commit
:::::: d18812070efc658267f7573eec5ce7810128bfeb ide: falconide/q40ide - Use __ide_mm_{in,out}sw() for data

:::::: TO: Geert Uytterhoeven <geert@...ux-m68k.org>
:::::: CC: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>

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

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