Re: [Intel-wired-lan] [PATCH net-next 06/12] dpll: Support dynamic pin index allocation

[kernel test robot]

Hi Ivan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Ivan-Vecera/dt-bindings-dpll-add-common-dpll-pin-consumer-schema/20260109-022618
base:   net-next/main
patch link:    https://lore.kernel.org/r/20260108182318.20935-7-ivecera%40redhat.com
patch subject: [Intel-wired-lan] [PATCH net-next 06/12] dpll: Support dynamic pin index allocation
config: hexagon-allmodconfig (https://download.01.org/0day-ci/archive/20260113/202601130301.7QjXjwFp-lkp@xxxxxxxxx/config)
compiler: 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/20260113/202601130301.7QjXjwFp-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202601130301.7QjXjwFp-lkp@xxxxxxxxx/

All warnings (new ones prefixed by >>):

>> drivers/dpll/dpll_core.c:499:21: warning: overflow in expression; result is -2147483648 with type 'int' [-Winteger-overflow]
     499 |         pin_idx -= INT_MAX + 1;
         |                            ^
   1 warning generated.


vim +/int +499 drivers/dpll/dpll_core.c

   490	
   491	static void dpll_pin_idx_free(u32 pin_idx)
   492	{
   493		if (pin_idx <= INT_MAX)
   494			return; /* Not a dynamic pin index */
   495	
   496		/* Map the index value from dynamic pin index range to IDA range and
   497		 * free it.
   498		 */
 > 499		pin_idx -= INT_MAX + 1;
   500		ida_free(&dpll_pin_idx_ida, pin_idx);
   501	}
   502	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki