Messages in this thread | | | Date | Tue, 9 Jan 2024 07:46:58 +0800 | From | kernel test robot <> | Subject | sound/core/control.c:390:11: sparse: sparse: incorrect type in assignment (different base types) |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 5db8752c3b81bd33a549f6f812bab81e3bb61b20 commit: c27e1efb61c545f36c450ef60862df9251d239a4 ALSA: control: Use xarray for faster lookups date: 1 year, 7 months ago config: i386-randconfig-063-20240107 (https://download.01.org/0day-ci/archive/20240109/202401090705.hJXfE4sT-lkp@intel.com/config) compiler: ClangBuiltLinux clang version 17.0.6 (https://github.com/llvm/llvm-project 6009708b4367171ccdbf4b5905cb6a803753fe18) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240109/202401090705.hJXfE4sT-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/202401090705.hJXfE4sT-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
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