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Subject[ammarfaizi2-block:tiwai/sound/test/ctl-xarray 8/8] sound/core/control.c:390:11: sparse: sparse: incorrect type in assignment (different base types)
tree:   https://github.com/ammarfaizi2/linux-block tiwai/sound/test/ctl-xarray
head: 4b5b1ae4a0fc499da62080dc54e6492df9a96dd7
commit: 4b5b1ae4a0fc499da62080dc54e6492df9a96dd7 [8/8] ALSA: control: Use xarray for faster lookups
config: arc-randconfig-s031-20220612 (https://download.01.org/0day-ci/archive/20220613/202206130850.ovjHDlOp-lkp@intel.com/config)
compiler: arceb-elf-gcc (GCC) 11.3.0
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: v0.6.4-30-g92122700-dirty
# https://github.com/ammarfaizi2/linux-block/commit/4b5b1ae4a0fc499da62080dc54e6492df9a96dd7
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block tiwai/sound/test/ctl-xarray
git checkout 4b5b1ae4a0fc499da62080dc54e6492df9a96dd7
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arc SHELL=/bin/bash sound/core/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> sound/core/control.c:390:11: sparse: sparse: incorrect type in assignment (different base types) @@ expected unsigned long h @@ got restricted snd_ctl_elem_iface_t const [usertype] iface @@
sound/core/control.c:390:11: sparse: expected unsigned long h
sound/core/control.c:390:11: sparse: got restricted snd_ctl_elem_iface_t const [usertype] iface
sound/core/control.c:926:17: sparse: sparse: restricted snd_ctl_elem_type_t degrades to integer
sound/core/control.c:926:26: sparse: sparse: restricted snd_ctl_elem_type_t degrades to integer
sound/core/control.c:927:17: sparse: sparse: restricted snd_ctl_elem_type_t degrades to integer
sound/core/control.c:927:26: sparse: sparse: restricted snd_ctl_elem_type_t degrades to integer
sound/core/control.c:946:48: sparse: sparse: restricted snd_ctl_elem_type_t degrades to integer
sound/core/control.c:1640:40: sparse: sparse: restricted snd_ctl_elem_type_t degrades to integer

vim +390 sound/core/control.c

378
379 #ifdef CONFIG_SND_CTL_FAST_LOOKUP
380 /* Compute a hash key for the corresponding ctl id
381 * It's for the name lookup, hence the numid is excluded.
382 * The hash key is bound in LONG_MAX to be used for Xarray key.
383 */
384 #define MULTIPLIER 37
385 static unsigned long get_ctl_id_hash(const struct snd_ctl_elem_id *id)
386 {
387 unsigned long h;
388 const unsigned char *p;
389
> 390 h = id->iface;
391 h = MULTIPLIER * h + id->device;
392 h = MULTIPLIER * h + id->subdevice;
393 for (p = id->name; *p; p++)
394 h = MULTIPLIER * h + *p;
395 h = MULTIPLIER * h + id->index;
396 h &= LONG_MAX;
397 return h;
398 }
399

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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