[jsarha:topic/cros-sof-v4.14-rebase 1859/9999] drivers/base/devres.c:92:13: sparse: sparse: incompatible types in comparison expression (different type sizes):

[jsarha:topic/cros-sof-v4.14-rebase 1859/9999] drivers/base/devres.c:92:13: sparse: sparse: incompatible types in comparison expression (different type sizes):

[kernel test robot]

tree:   https://github.com/jsarha/linux topic/cros-sof-v4.14-rebase
head:   18a233f3f676a98dde00947535d99ab1a54da340
commit: 9780924cd85d20dca59c929153c3004ed41208be [1859/9999] UPSTREAM: device: Use overflow helpers for devm_kmalloc()
config: m68k-randconfig-s051-20230205 (https://download.01.org/0day-ci/archive/20230207/202302070750.lcRhdtUN-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 7.5.0
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: v0.6.4-39-gce1a6720-dirty
        # https://github.com/jsarha/linux/commit/9780924cd85d20dca59c929153c3004ed41208be
        git remote add jsarha https://github.com/jsarha/linux
        git fetch --no-tags jsarha topic/cros-sof-v4.14-rebase
        git checkout 9780924cd85d20dca59c929153c3004ed41208be
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-7.5.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=m68k SHELL=/bin/bash drivers/base/ drivers/iio/adc/ drivers/usb/core/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

sparse warnings: (new ones prefixed by >>)
   drivers/base/devres.c:1055:9: sparse: sparse: cast removes address space '<asn:3>' of expression
>> drivers/base/devres.c:92:13: sparse: sparse: incompatible types in comparison expression (different type sizes):
>> drivers/base/devres.c:92:13: sparse:    unsigned long *
>> drivers/base/devres.c:92:13: sparse:    unsigned int *
>> drivers/base/devres.c:92:13: sparse: sparse: incompatible types in comparison expression (different type sizes):
>> drivers/base/devres.c:92:13: sparse:    unsigned long *
>> drivers/base/devres.c:92:13: sparse:    unsigned int *
>> drivers/base/devres.c:92:13: sparse: sparse: incompatible types in comparison expression (different type sizes):
>> drivers/base/devres.c:92:13: sparse:    unsigned long *
>> drivers/base/devres.c:92:13: sparse:    unsigned int *
>> drivers/base/devres.c:92:13: sparse: sparse: incompatible types in comparison expression (different type sizes):
>> drivers/base/devres.c:92:13: sparse:    unsigned long *
>> drivers/base/devres.c:92:13: sparse:    unsigned int *

vim +92 drivers/base/devres.c

    84	
    85	static __always_inline struct devres * alloc_dr(dr_release_t release,
    86							size_t size, gfp_t gfp, int nid)
    87	{
    88		size_t tot_size;
    89		struct devres *dr;
    90	
    91		/* We must catch any near-SIZE_MAX cases that could overflow. */
  > 92		if (unlikely(check_add_overflow(sizeof(struct devres), size,
    93						&tot_size)))
    94			return NULL;
    95	
    96		dr = kmalloc_node_track_caller(tot_size, gfp, nid);
    97		if (unlikely(!dr))
    98			return NULL;
    99	
   100		memset(dr, 0, offsetof(struct devres, data));
   101	
   102		INIT_LIST_HEAD(&dr->node.entry);
   103		dr->node.release = release;
   104		return dr;
   105	}
   106	

-- 
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https://github.com/intel/lkp-tests