[ardb:arm64-ro-page-tables-pkvm 35/55] kernel/poke.c:34:46: sparse: sparse: non size-preserving pointer to integer cast

[ardb:arm64-ro-page-tables-pkvm 35/55] kernel/poke.c:34:46: sparse: sparse: non size-preserving pointer to integer cast

[kernel test robot]

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tree:   git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git arm64-ro-page-tables-pkvm
head:   ac9916b95f58353008b7d0dc1ac8552bde419ebd
commit: 665bd1705bd4aae29df323c7aadb97eb89c7c515 [35/55] [DEBUG] poke: Add sysctl to poke abitrary VAs
config: mips-randconfig-s031-20210302 (attached as .config)
compiler: mipsel-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: v0.6.3-241-geaceeafa-dirty
        # https://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git/commit/?id=665bd1705bd4aae29df323c7aadb97eb89c7c515
        git remote add ardb git://git.kernel.org/pub/scm/linux/kernel/git/ardb/linux.git
        git fetch --no-tags ardb arm64-ro-page-tables-pkvm
        git checkout 665bd1705bd4aae29df323c7aadb97eb89c7c515
        # 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=mips 

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 >>)"
   command-line: note: in included file:
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined
   builtin:0:0: sparse: this was the original definition
   builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined
   builtin:0:0: sparse: this was the original definition
>> kernel/poke.c:34:46: sparse: sparse: non size-preserving pointer to integer cast

vim +34 kernel/poke.c

    31	
    32	static ssize_t virt_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf)
    33	{
  > 34		return sprintf(buf, "0x%llx\n", (u64)virt);
    35	}
    36	

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

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