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Message-ID: <202008181859.KrYSLYjK%lkp@intel.com>
Date:   Tue, 18 Aug 2020 18:52:02 +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/mtd/maps/physmap-versatile.c:116:17: 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:   06a4ec1d9dc652e17ee3ac2ceb6c7cf6c2b75cdd
commit: 670d0a4b10704667765f7d18f7592993d02783aa sparse: use identifiers to define address spaces
date:   9 weeks ago
config: openrisc-randconfig-s031-20200818 (attached as .config)
compiler: or1k-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: v0.6.2-180-g49f7e13a-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=openrisc 

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/mtd/maps/physmap-versatile.c:116:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@     expected void *addr @@     got void [noderef] __iomem *[assigned] ebi_base @@
   drivers/mtd/maps/physmap-versatile.c:116:17: sparse:     expected void *addr
>> drivers/mtd/maps/physmap-versatile.c:116:17: sparse:     got void [noderef] __iomem *[assigned] ebi_base
   drivers/mtd/maps/physmap-versatile.c: note: in included file (through arch/openrisc/include/asm/io.h, include/linux/io.h):
   include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:225:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:225:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:179:15: sparse: sparse: cast to restricted __le32
   include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:225:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:225:22: sparse:     got restricted __le32 [usertype]
   include/asm-generic/io.h:225:22: sparse: sparse: incorrect type in argument 1 (different base types) @@     expected unsigned int [usertype] value @@     got restricted __le32 [usertype] @@
   include/asm-generic/io.h:225:22: sparse:     expected unsigned int [usertype] value
   include/asm-generic/io.h:225:22: sparse:     got restricted __le32 [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 +116 drivers/mtd/maps/physmap-versatile.c

b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   82  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   83  static int ap_flash_init(struct platform_device *pdev)
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   84  {
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   85  	struct device_node *ebi;
ab8d531910e287 drivers/mtd/maps/physmap_of_versatile.c Julia Lawall  2017-07-15   86  	void __iomem *ebi_base;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   87  	u32 val;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   88  	int ret;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   89  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   90  	/* Look up the EBI */
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   91  	ebi = of_find_matching_node(NULL, ebi_match);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   92  	if (!ebi) {
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   93  		return -ENODEV;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   94  	}
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   95  	ebi_base = of_iomap(ebi, 0);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   96  	if (!ebi_base)
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   97  		return -ENODEV;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   98  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26   99  	/* Clear VPP and write protection bits */
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  100  	ret = regmap_write(syscon_regmap,
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  101  		INTEGRATOR_SC_CTRLC_OFFSET,
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  102  		INTEGRATOR_SC_CTRL_FLVPPEN | INTEGRATOR_SC_CTRL_FLWP);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  103  	if (ret)
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  104  		dev_err(&pdev->dev, "error clearing Integrator VPP/WP\n");
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  105  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  106  	/* Unlock the EBI */
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  107  	writel(INTEGRATOR_EBI_LOCK_VAL, ebi_base + INTEGRATOR_EBI_LOCK_OFFSET);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  108  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  109  	/* Enable write cycles on the EBI, CSR1 (flash) */
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  110  	val = readl(ebi_base + INTEGRATOR_EBI_CSR1_OFFSET);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  111  	val |= INTEGRATOR_EBI_WRITE_ENABLE;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  112  	writel(val, ebi_base + INTEGRATOR_EBI_CSR1_OFFSET);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  113  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  114  	/* Lock the EBI again */
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  115  	writel(0, ebi_base + INTEGRATOR_EBI_LOCK_OFFSET);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26 @116  	iounmap(ebi_base);
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  117  
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  118  	return 0;
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  119  }
b0afd44bc192ff drivers/mtd/maps/physmap_of_versatile.c Linus Walleij 2016-01-26  120  

:::::: The code at line 116 was first introduced by commit
:::::: b0afd44bc192ff4c0e90a5fc1724350bcfc32b33 mtd: physmap_of: add a hook for Versatile write protection

:::::: TO: Linus Walleij <linus.walleij@...aro.org>
:::::: CC: Linus Walleij <linus.walleij@...aro.org>

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

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