[thomas-weissschuh:vdso/unaligned 1/3] include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers)

[thomas-weissschuh:vdso/unaligned 1/3] include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers)

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git vdso/unaligned
head:   d826530fc107faa320a7a88b939b72fa5f6734b5
commit: 3e7bf09e7bd5dce36df14f6770211fd1bc98a538 [1/3] vdso: Switch get/put unaligned from packed struct to memcpy
config: i386-randconfig-062-20250729 (https://download.01.org/0day-ci/archive/20250729/202507291356.KX5dMLQw-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250729/202507291356.KX5dMLQw-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/202507291356.KX5dMLQw-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
   drivers/infiniband/core/cm.c:1296:20: sparse: sparse: cast from restricted __be32
   drivers/infiniband/core/cm.c: note: in included file (through include/rdma/ibta_vol1_c12.h, drivers/infiniband/core/cm_msgs.h):
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *
>> include/rdma/iba.h:48:16: sparse: sparse: incorrect type in argument 1 (different modifiers) @@     expected void * @@     got restricted __be64 const * @@
   include/rdma/iba.h:48:16: sparse:     expected void *
   include/rdma/iba.h:48:16: sparse:     got restricted __be64 const *

vim +48 include/rdma/iba.h

d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  41  
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  42  static inline u64 _iba_get64(const __be64 *ptr)
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  43  {
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  44  	/*
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  45  	 * The mads are constructed so that 32 bit and smaller are naturally
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  46  	 * aligned, everything larger has a max alignment of 4 bytes.
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  47  	 */
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16 @48  	return be64_to_cpu(get_unaligned(ptr));
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  49  }
d05d4ac4c9316a2 Leon Romanovsky 2020-01-16  50  

:::::: The code at line 48 was first introduced by commit
:::::: d05d4ac4c9316a2e2ea5be434a7f7a021ec44a3c RDMA/cm: Add SET/GET implementations to hide IBA wire format

:::::: TO: Leon Romanovsky <leonro@mellanox.com>
:::::: CC: Jason Gunthorpe <jgg@mellanox.com>

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