drivers/memstick/host/r592.c:83:9: sparse: sparse: incorrect type in assignment (different base types)

[kernel test robot <lkp@intel.com>]

Hi Greg,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   33f2b5785a2b6b0ed1948aafee60d3abb12f1e3a
commit: d4aa8affa1e9e51c237a1ec47a97e96dce76c98c m68knommu: fix use of cpu_to_le() on IO access
date:   2 years, 10 months ago
config: m68k-randconfig-s041-20230608 (https://download.01.org/0day-ci/archive/20230609/202306091608.zuOYo5EP-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 12.3.0
reproduce:
        mkdir -p ~/bin
        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: v0.6.4-39-gce1a6720-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=d4aa8affa1e9e51c237a1ec47a97e96dce76c98c
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout d4aa8affa1e9e51c237a1ec47a97e96dce76c98c
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.3.0 ~/bin/make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202306091608.zuOYo5EP-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/memstick/host/r592.c:83:9: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int volatile [usertype] @@     got restricted __be32 [usertype] @@
   drivers/memstick/host/r592.c:83:9: sparse:     expected unsigned int volatile [usertype]
   drivers/memstick/host/r592.c:83:9: sparse:     got restricted __be32 [usertype]
>> drivers/memstick/host/r592.c:83:9: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int volatile [usertype] @@     got restricted __be32 [usertype] @@
   drivers/memstick/host/r592.c:83:9: sparse:     expected unsigned int volatile [usertype]
   drivers/memstick/host/r592.c:83:9: sparse:     got restricted __be32 [usertype]
>> drivers/memstick/host/r592.c:83:9: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int volatile [usertype] @@     got restricted __be32 [usertype] @@
   drivers/memstick/host/r592.c:83:9: sparse:     expected unsigned int volatile [usertype]
   drivers/memstick/host/r592.c:83:9: sparse:     got restricted __be32 [usertype]
   drivers/memstick/host/r592.c:75:16: sparse: sparse: cast to restricted __be32
   drivers/memstick/host/r592.c:75:16: sparse: sparse: cast to restricted __be32

vim +83 drivers/memstick/host/r592.c

9263412501022f Maxim Levitsky 2011-03-25  42  
9263412501022f Maxim Levitsky 2011-03-25  43  /**
9263412501022f Maxim Levitsky 2011-03-25  44   * memstick_debug_get_tpc_name - debug helper that returns string for
9263412501022f Maxim Levitsky 2011-03-25  45   * a TPC number
9263412501022f Maxim Levitsky 2011-03-25  46   */
9263412501022f Maxim Levitsky 2011-03-25 @47  const char *memstick_debug_get_tpc_name(int tpc)
9263412501022f Maxim Levitsky 2011-03-25  48  {
9263412501022f Maxim Levitsky 2011-03-25  49  	return tpc_names[tpc-1];
9263412501022f Maxim Levitsky 2011-03-25  50  }
9263412501022f Maxim Levitsky 2011-03-25  51  EXPORT_SYMBOL(memstick_debug_get_tpc_name);
9263412501022f Maxim Levitsky 2011-03-25  52  
9263412501022f Maxim Levitsky 2011-03-25  53  
9263412501022f Maxim Levitsky 2011-03-25  54  /* Read a register*/
9263412501022f Maxim Levitsky 2011-03-25  55  static inline u32 r592_read_reg(struct r592_device *dev, int address)
9263412501022f Maxim Levitsky 2011-03-25  56  {
9263412501022f Maxim Levitsky 2011-03-25  57  	u32 value = readl(dev->mmio + address);
9263412501022f Maxim Levitsky 2011-03-25  58  	dbg_reg("reg #%02d == 0x%08x", address, value);
9263412501022f Maxim Levitsky 2011-03-25  59  	return value;
9263412501022f Maxim Levitsky 2011-03-25  60  }
9263412501022f Maxim Levitsky 2011-03-25  61  
9263412501022f Maxim Levitsky 2011-03-25  62  /* Write a register */
9263412501022f Maxim Levitsky 2011-03-25  63  static inline void r592_write_reg(struct r592_device *dev,
9263412501022f Maxim Levitsky 2011-03-25  64  							int address, u32 value)
9263412501022f Maxim Levitsky 2011-03-25  65  {
9263412501022f Maxim Levitsky 2011-03-25  66  	dbg_reg("reg #%02d <- 0x%08x", address, value);
9263412501022f Maxim Levitsky 2011-03-25  67  	writel(value, dev->mmio + address);
9263412501022f Maxim Levitsky 2011-03-25  68  }
9263412501022f Maxim Levitsky 2011-03-25  69  
9263412501022f Maxim Levitsky 2011-03-25  70  /* Reads a big endian DWORD register */
9263412501022f Maxim Levitsky 2011-03-25  71  static inline u32 r592_read_reg_raw_be(struct r592_device *dev, int address)
9263412501022f Maxim Levitsky 2011-03-25  72  {
9263412501022f Maxim Levitsky 2011-03-25  73  	u32 value = __raw_readl(dev->mmio + address);
9263412501022f Maxim Levitsky 2011-03-25  74  	dbg_reg("reg #%02d == 0x%08x", address, value);
9263412501022f Maxim Levitsky 2011-03-25  75  	return be32_to_cpu(value);
9263412501022f Maxim Levitsky 2011-03-25  76  }
9263412501022f Maxim Levitsky 2011-03-25  77  
9263412501022f Maxim Levitsky 2011-03-25  78  /* Writes a big endian DWORD register */
9263412501022f Maxim Levitsky 2011-03-25  79  static inline void r592_write_reg_raw_be(struct r592_device *dev,
9263412501022f Maxim Levitsky 2011-03-25  80  							int address, u32 value)
9263412501022f Maxim Levitsky 2011-03-25  81  {
9263412501022f Maxim Levitsky 2011-03-25  82  	dbg_reg("reg #%02d <- 0x%08x", address, value);
9263412501022f Maxim Levitsky 2011-03-25 @83  	__raw_writel(cpu_to_be32(value), dev->mmio + address);
9263412501022f Maxim Levitsky 2011-03-25  84  }
9263412501022f Maxim Levitsky 2011-03-25  85  

:::::: The code at line 83 was first introduced by commit
:::::: 9263412501022fecef844907129ee2513b5a89de memstick: add driver for Ricoh R5C592 card reader

:::::: TO: Maxim Levitsky <maximlevitsky@gmail.com>
:::::: CC: Linus Torvalds <torvalds@linux-foundation.org>

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