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

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Date:   Thu, 26 Nov 2020 09:02:58 +0800
From:   kernel test robot <lkp@...el.com>
To:     Greg Ungerer <gerg@...ux-m68k.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>
Subject: drivers/memstick/host/r592.c:83:9: sparse: sparse: incorrect type in
 assignment (different base types)

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   fa02fcd94b0c8dff6cc65714510cf25ad194b90d
commit: d4aa8affa1e9e51c237a1ec47a97e96dce76c98c m68knommu: fix use of cpu_to_le() on IO access
date:   4 months ago
config: m68k-randconfig-s032-20201126 (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: v0.6.3-151-g540c2c4b-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 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/memstick/host/r592.c:47:12: sparse: sparse: symbol 'memstick_debug_get_tpc_name' was not declared. Should it be static?
>> 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

9263412501022fe Maxim Levitsky 2011-03-25  77  
9263412501022fe Maxim Levitsky 2011-03-25  78  /* Writes a big endian DWORD register */
9263412501022fe Maxim Levitsky 2011-03-25  79  static inline void r592_write_reg_raw_be(struct r592_device *dev,
9263412501022fe Maxim Levitsky 2011-03-25  80  							int address, u32 value)
9263412501022fe Maxim Levitsky 2011-03-25  81  {
9263412501022fe Maxim Levitsky 2011-03-25  82  	dbg_reg("reg #%02d <- 0x%08x", address, value);
9263412501022fe Maxim Levitsky 2011-03-25 @83  	__raw_writel(cpu_to_be32(value), dev->mmio + address);
9263412501022fe Maxim Levitsky 2011-03-25  84  }
9263412501022fe 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@...il.com>
:::::: CC: Linus Torvalds <torvalds@...ux-foundation.org>

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

Download attachment ".config.gz" of type "application/gzip" (20517 bytes)