On 1/12/26 4:13 PM, kernel test robot wrote:

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: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20260112/202601122216.BCarSN6K-lkp@intel.com/config)
compiler: m68k-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260112/202601122216.BCarSN6K-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 [off-list ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202601122216.BCarSN6K-lkp@intel.com/ (local)

All warnings (new ones prefixed by >>):

    drivers/dpll/dpll_core.c: In function 'dpll_pin_idx_free':

quoted

quoted

drivers/dpll/dpll_core.c:499:28: warning: integer overflow in expression of type 'int' results in '-2147483648' [-Woverflow]

      499 |         pin_idx -= INT_MAX + 1;
          |                            ^


vim +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;

'pin_idx -= (u32)INT_MAX + 1' should be here..

Will fix.

I.

    500		ida_free(&dpll_pin_idx_ida, pin_idx);
    501	}
    502