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/[email protected]/config)
compiler: m68k-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build):
(https://download.01.org/0day-ci/archive/20260112/[email protected]/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 <[email protected]>
| Closes:
https://lore.kernel.org/oe-kbuild-all/[email protected]/
All warnings (new ones prefixed by >>):
drivers/dpll/dpll_core.c: In function 'dpll_pin_idx_free':
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
