[namhyung-perf:bpf/slab-iter-v4 2/3] mm/slab_common.c:1334:23: error: incompatible integer to pointer conversion passing 'u64' (aka 'unsigned long long') to parameter of type 'const void *'

[namhyung-perf:bpf/slab-iter-v4 2/3] mm/slab_common.c:1334:23: error: incompatible integer to pointer conversion passing 'u64' (aka 'unsigned long long') to parameter of type 'const void *'

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/namhyung/linux-perf.git bpf/slab-iter-v4
head:   2941faf08c4c0c782881cfe9e8b7e1b6432a6212
commit: 96ce888c02ed7cf7278c4d4d14bab67c1db4b673 [2/3] mm/bpf: Add bpf_get_kmem_cache() kfunc
config: arm-randconfig-002-20241004 (https://download.01.org/0day-ci/archive/20241004/202410040606.o9Sk5WgC-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project fef3566a25ff0e34fb87339ba5e13eca17cec00f)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241004/202410040606.o9Sk5WgC-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/202410040606.o9Sk5WgC-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from mm/slab_common.c:9:
   In file included from include/linux/mm.h:2213:
   include/linux/vmstat.h:518:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
     518 |         return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
         |                               ~~~~~~~~~~~ ^ ~~~
   In file included from mm/slab_common.c:32:
   In file included from mm/internal.h:13:
   include/linux/mm_inline.h:47:41: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
      47 |         __mod_lruvec_state(lruvec, NR_LRU_BASE + lru, nr_pages);
         |                                    ~~~~~~~~~~~ ^ ~~~
   include/linux/mm_inline.h:49:22: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
      49 |                                 NR_ZONE_LRU_BASE + lru, nr_pages);
         |                                 ~~~~~~~~~~~~~~~~ ^ ~~~
>> mm/slab_common.c:1334:23: error: incompatible integer to pointer conversion passing 'u64' (aka 'unsigned long long') to parameter of type 'const void *' [-Wint-conversion]
    1334 |         if (!virt_addr_valid(addr))
         |                              ^~~~
   arch/arm/include/asm/memory.h:392:31: note: expanded from macro 'virt_addr_valid'
     392 |                                         && pfn_valid(virt_to_pfn(kaddr)))
         |                                                                  ^~~~~
   arch/arm/include/asm/memory.h:296:53: note: passing argument to parameter 'p' here
     296 | static inline unsigned long virt_to_pfn(const void *p)
         |                                                     ^
   3 warnings and 1 error generated.


vim +1334 mm/slab_common.c

  1329	
  1330	__bpf_kfunc struct kmem_cache *bpf_get_kmem_cache(u64 addr)
  1331	{
  1332		struct slab *slab;
  1333	
> 1334		if (!virt_addr_valid(addr))
  1335			return NULL;
  1336	
  1337		slab = virt_to_slab((void *)(long)addr);
  1338		return slab ? slab->slab_cache : NULL;
  1339	}
  1340	

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