[linux-next:master 990/1252] drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32

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

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   74e5dee6a5b9683e4e78aad784c6c807833cb89b
commit: feca4cc4765a67907a97bddfa94aa6901cbbce7d [990/1252] mtd: rawnand: brcmnand: Add BCMA shim
config: alpha-randconfig-s032-20220124 (https://download.01.org/0day-ci/archive/20220124/202201242253.FYuBom60-lkp(a)intel.com/config)
compiler: alpha-linux-gcc (GCC) 11.2.0
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-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=feca4cc4765a67907a97bddfa94aa6901cbbce7d
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout feca4cc4765a67907a97bddfa94aa6901cbbce7d
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha SHELL=/bin/bash drivers/mtd/nand/raw/brcmnand/

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


sparse warnings: (new ones prefixed by >>)
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:61:23: sparse: sparse: cast to restricted __be32
>> drivers/mtd/nand/raw/brcmnand/bcma_nand.c:78:21: sparse: sparse: incorrect type in assignment (different base types) @@     expected unsigned int [usertype] val @@     got restricted __be32 [usertype] @@
   drivers/mtd/nand/raw/brcmnand/bcma_nand.c:78:21: sparse:     expected unsigned int [usertype] val
   drivers/mtd/nand/raw/brcmnand/bcma_nand.c:78:21: sparse:     got restricted __be32 [usertype]

vim +61 drivers/mtd/nand/raw/brcmnand/bcma_nand.c

    45	
    46	static u32 brcmnand_bcma_read_reg(struct brcmnand_soc *soc, u32 offset)
    47	{
    48		struct brcmnand_bcma_soc *sc = to_bcma_soc(soc);
    49		u32 val;
    50	
    51		/* Offset into the NAND block and deal with the flash cache separately */
    52		if (offset == BRCMNAND_NON_MMIO_FC_ADDR)
    53			offset = BCMA_CC_NAND_CACHE_DATA;
    54		else
    55			offset += BCMA_CC_NAND_REVISION;
    56	
    57		val = bcma_cc_read32(sc->cc, offset);
    58	
    59		/* Swap if necessary */
    60		if (brcmnand_bcma_needs_swapping(offset))
  > 61			val = be32_to_cpu(val);
    62		return val;
    63	}
    64	
    65	static void brcmnand_bcma_write_reg(struct brcmnand_soc *soc, u32 val,
    66					    u32 offset)
    67	{
    68		struct brcmnand_bcma_soc *sc = to_bcma_soc(soc);
    69	
    70		/* Offset into the NAND block */
    71		if (offset == BRCMNAND_NON_MMIO_FC_ADDR)
    72			offset = BCMA_CC_NAND_CACHE_DATA;
    73		else
    74			offset += BCMA_CC_NAND_REVISION;
    75	
    76		/* Swap if necessary */
    77		if (brcmnand_bcma_needs_swapping(offset))
  > 78			val = cpu_to_be32(val);
    79	
    80		bcma_cc_write32(sc->cc, offset, val);
    81	}
    82	

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