tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 
master
head:   449dc8c97089a6e09fb2dac4d92b1b7ac0eb7c1e
commit: 742a265accd3e3afcc8e7b17f409c93c1de8be85 powerpc/fadump: register 
kernel metadata address with opal
date:   11 months ago
config: powerpc64-randconfig-s032-20200808 (attached as .config)
compiler: powerpc64-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: v0.6.2-118-ge1578773-dirty
        git checkout 742a265accd3e3afcc8e7b17f409c93c1de8be85
        # 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=powerpc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>


sparse warnings: (new ones prefixed by >>)

>> arch/powerpc/platforms/powernv/opal-fadump.c:42:33: sparse: sparse: 
>> incorrect type in assignment (different base types) @@     expected 
>> restricted __be64 [usertype] dest @@     got unsigned long long [usertype] 
>> addr @@
>> arch/powerpc/platforms/powernv/opal-fadump.c:42:33: sparse:     expected 
>> restricted __be64 [usertype] dest
>> arch/powerpc/platforms/powernv/opal-fadump.c:42:33: sparse:     got unsigned 
>> long long [usertype] addr
   arch/powerpc/platforms/powernv/opal-fadump.c:43:33: sparse: sparse: 
incorrect type in assignment (different base types) @@     expected restricted 
__be64 [usertype] size @@     got unsigned long boot_memory_size @@
>> arch/powerpc/platforms/powernv/opal-fadump.c:43:33: sparse:     expected 
>> restricted __be64 [usertype] size
   arch/powerpc/platforms/powernv/opal-fadump.c:43:33: sparse:     got unsigned 
long boot_memory_size
>> arch/powerpc/platforms/powernv/opal-fadump.c:50:53: sparse: sparse: 
>> restricted __be64 degrades to integer

vim +42 arch/powerpc/platforms/powernv/opal-fadump.c

    32  
    33  static u64 opal_fadump_init_mem_struct(struct fw_dump *fadump_conf)
    34  {
    35          u64 addr = fadump_conf->reserve_dump_area_start;
    36  
    37          opal_fdm = __va(fadump_conf->kernel_metadata);
    38          opal_fadump_init_metadata(opal_fdm);
    39  
    40          opal_fdm->region_cnt = 1;
    41          opal_fdm->rgn[0].src    = 0;
  > 42          opal_fdm->rgn[0].dest   = addr;
  > 43          opal_fdm->rgn[0].size   = fadump_conf->boot_memory_size;
    44          addr += fadump_conf->boot_memory_size;
    45  
    46          /*
    47           * Kernel metadata is passed to f/w and retrieved in capture 
kerenl.
    48           * So, use it to save fadump header address instead of 
calculating it.
    49           */
  > 50          opal_fdm->fadumphdr_addr = (opal_fdm->rgn[0].dest +
    51                                      fadump_conf->boot_memory_size);
    52  
    53          return addr;
    54  }
    55  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

Attachment: .config.gz
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