Re: [Intel-wired-lan] [PATCH net-next] i40e: add devlink parameter for Flow Director ATR sample rate

[kernel test robot <lkp@intel.com>]

Hi,

kernel test robot noticed the following build errors:

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

url:    https://github.com/intel-lab-lkp/linux/commits/mheib-redhat-com/i40e-add-devlink-parameter-for-Flow-Director-ATR-sample-rate/20260615-001257
base:   net-next/main
patch link:    https://lore.kernel.org/r/20260614161131.192068-1-mheib%40redhat.com
patch subject: [Intel-wired-lan] [PATCH net-next] i40e: add devlink parameter for Flow Director ATR sample rate
config: sparc64-allmodconfig (https://download.01.org/0day-ci/archive/20260615/202606150807.u6hUM8VJ-lkp@intel.com/config)
compiler: clang version 20.1.8 (https://github.com/llvm/llvm-project 87f0227cb60147a26a1eeb4fb06e3b505e9c7261)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260615/202606150807.u6hUM8VJ-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/202606150807.u6hUM8VJ-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/net/ethernet/intel/i40e/i40e_devlink.c:106:9: error: incompatible function pointer types initializing 'int (*)(struct devlink *, u32, union devlink_param_value *, struct netlink_ext_ack *)' (aka 'int (*)(struct devlink *, unsigned int, union devlink_param_value *, struct netlink_ext_ack *)') with an expression of type 'int (struct devlink *, u32, union devlink_param_value, struct netlink_ext_ack *)' (aka 'int (struct devlink *, unsigned int, union devlink_param_value, struct netlink_ext_ack *)') [-Wincompatible-function-pointer-types]
     106 |                              i40e_atr_sample_rate_validate),
         |                              ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   include/net/devlink.h:650:14: note: expanded from macro 'DEVLINK_PARAM_DRIVER'
     650 |         .validate = _validate,                                          \
         |                     ^~~~~~~~~
   1 error generated.


vim +106 drivers/net/ethernet/intel/i40e/i40e_devlink.c

    93	
    94	static const struct devlink_param i40e_dl_params[] = {
    95		DEVLINK_PARAM_GENERIC(MAX_MAC_PER_VF,
    96				      BIT(DEVLINK_PARAM_CMODE_RUNTIME),
    97				      i40e_max_mac_per_vf_get,
    98				      i40e_max_mac_per_vf_set,
    99				      NULL),
   100		DEVLINK_PARAM_DRIVER(I40E_DEVLINK_PARAM_ID_ATR_SAMPLE_RATE,
   101				     "atr_sample_rate",
   102				     DEVLINK_PARAM_TYPE_U32,
   103				     BIT(DEVLINK_PARAM_CMODE_RUNTIME),
   104				     i40e_atr_sample_rate_get,
   105				     i40e_atr_sample_rate_set,
 > 106				     i40e_atr_sample_rate_validate),
   107	};
   108	

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