[anna-nfs:linux-next 20/32] fs/nfs/flexfilelayout/flexfilelayout.c:614:2: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'uint64_t *' (aka 'unsigned long long *')

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

tree:   git://git.linux-nfs.org/projects/anna/linux-nfs.git linux-next
head:   790035f57131cbc430418b4a2d3f3f24caa7c40f
commit: 67ee714244dfb06cdeab07ee624e2eeddab35067 [20/32] NFSv4/flexfiles: Commit path updates for striped layouts
config: powerpc-randconfig-003-20250918 (https://download.01.org/0day-ci/archive/20250918/202509180839.UzAynv63-lkp@intel.com/config)
compiler: clang version 19.1.7 (https://github.com/llvm/llvm-project cd708029e0b2869e80abe31ddb175f7c35361f90)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250918/202509180839.UzAynv63-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202509180839.UzAynv63-lkp@intel.com/

All error/warnings (new ones prefixed by >>):

>> fs/nfs/flexfilelayout/flexfilelayout.c:614:2: warning: comparison of distinct pointer types ('typeof ((mirror_idx)) *' (aka 'unsigned int *') and 'uint64_t *' (aka 'unsigned long long *')) [-Wcompare-distinct-pointer-types]
     614 |         do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/div64.h:183:28: note: expanded from macro 'do_div'
     183 |         (void)(((typeof((n)) *)0) == ((uint64_t *)0));  \
         |                ~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
>> fs/nfs/flexfilelayout/flexfilelayout.c:614:2: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'uint64_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types]
     614 |         do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/div64.h:199:22: note: expanded from macro 'do_div'
     199 |                 __rem = __div64_32(&(n), __base);       \
         |                                    ^~~~
   include/asm-generic/div64.h:174:38: note: passing argument to parameter 'dividend' here
     174 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
         |                                      ^
>> fs/nfs/flexfilelayout/flexfilelayout.c:614:2: warning: shift count >= width of type [-Wshift-count-overflow]
     614 |         do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/div64.h:195:25: note: expanded from macro 'do_div'
     195 |         } else if (likely(((n) >> 32) == 0)) {          \
         |                                ^  ~~
   include/linux/compiler.h:76:40: note: expanded from macro 'likely'
      76 | # define likely(x)      __builtin_expect(!!(x), 1)
         |                                             ^
   fs/nfs/flexfilelayout/flexfilelayout.c:625:9: warning: comparison of distinct pointer types ('typeof ((mirror_idx)) *' (aka 'unsigned int *') and 'uint64_t *' (aka 'unsigned long long *')) [-Wcompare-distinct-pointer-types]
     625 |         return do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/div64.h:183:28: note: expanded from macro 'do_div'
     183 |         (void)(((typeof((n)) *)0) == ((uint64_t *)0));  \
         |                ~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
   fs/nfs/flexfilelayout/flexfilelayout.c:625:9: error: incompatible pointer types passing 'u32 *' (aka 'unsigned int *') to parameter of type 'uint64_t *' (aka 'unsigned long long *') [-Werror,-Wincompatible-pointer-types]
     625 |         return do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/div64.h:199:22: note: expanded from macro 'do_div'
     199 |                 __rem = __div64_32(&(n), __base);       \
         |                                    ^~~~
   include/asm-generic/div64.h:174:38: note: passing argument to parameter 'dividend' here
     174 | extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor);
         |                                      ^
   fs/nfs/flexfilelayout/flexfilelayout.c:625:9: warning: shift count >= width of type [-Wshift-count-overflow]
     625 |         return do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
         |                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/asm-generic/div64.h:195:25: note: expanded from macro 'do_div'
     195 |         } else if (likely(((n) >> 32) == 0)) {          \
         |                                ^  ~~
   include/linux/compiler.h:76:40: note: expanded from macro 'likely'
      76 | # define likely(x)      __builtin_expect(!!(x), 1)
         |                                             ^
   4 warnings and 2 errors generated.


vim +614 fs/nfs/flexfilelayout/flexfilelayout.c

   607	
   608	static u32 calc_mirror_idx_from_commit(struct pnfs_layout_segment *lseg,
   609					       u32 commit_index)
   610	{
   611		struct nfs4_ff_layout_segment *flseg = FF_LAYOUT_LSEG(lseg);
   612		u32 mirror_idx = commit_index;
   613	
 > 614		do_div(mirror_idx, flseg->mirror_array[0]->dss_count);
   615	
   616		return mirror_idx;
   617	}
   618	

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