[PATCH] wifi: mt76: mt7921: add rfkill_poll for hardware rfkill

[kernel test robot]

Hi Allan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on wireless-next/main]
[also build test WARNING on wireless/main linus/master v6.13-rc1 next-20241206]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Allan-Wang/wifi-mt76-mt7921-add-rfkill_poll-for-hardware-rfkill/20241206-094523
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link:    https://lore.kernel.org/r/20241206014355.32426-1-allan.wang%40mediatek.com
patch subject: [PATCH] wifi: mt76: mt7921: add rfkill_poll for hardware rfkill
config: powerpc-randconfig-r113-20241207 (https://download.01.org/0day-ci/archive/20241207/202412071431.tF1EfPaT-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 592c0fe55f6d9a811028b5f3507be91458ab2713)
reproduce: (https://download.01.org/0day-ci/archive/20241207/202412071431.tF1EfPaT-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202412071431.tF1EfPaT-lkp@intel.com/

sparse warnings: (new ones prefixed by >>)
>> drivers/net/wireless/mediatek/mt76/mt7921/mcu.c:69:28: sparse: sparse: cast to restricted __le32

vim +69 drivers/net/wireless/mediatek/mt76/mt7921/mcu.c

    17	
    18	int mt7921_mcu_parse_response(struct mt76_dev *mdev, int cmd,
    19				      struct sk_buff *skb, int seq)
    20	{
    21		int mcu_cmd = FIELD_GET(__MCU_CMD_FIELD_ID, cmd);
    22		struct mt76_connac2_mcu_rxd *rxd;
    23		int ret = 0;
    24	
    25		if (!skb) {
    26			dev_err(mdev->dev, "Message %08x (seq %d) timeout\n",
    27				cmd, seq);
    28			mt792x_reset(mdev);
    29	
    30			return -ETIMEDOUT;
    31		}
    32	
    33		rxd = (struct mt76_connac2_mcu_rxd *)skb->data;
    34		if (seq != rxd->seq)
    35			return -EAGAIN;
    36	
    37		if (cmd == MCU_CMD(PATCH_SEM_CONTROL) ||
    38		    cmd == MCU_CMD(PATCH_FINISH_REQ)) {
    39			skb_pull(skb, sizeof(*rxd) - 4);
    40			ret = *skb->data;
    41		} else if (cmd == MCU_EXT_CMD(THERMAL_CTRL)) {
    42			skb_pull(skb, sizeof(*rxd) + 4);
    43			ret = le32_to_cpu(*(__le32 *)skb->data);
    44		} else if (cmd == MCU_UNI_CMD(DEV_INFO_UPDATE) ||
    45			   cmd == MCU_UNI_CMD(BSS_INFO_UPDATE) ||
    46			   cmd == MCU_UNI_CMD(STA_REC_UPDATE) ||
    47			   cmd == MCU_UNI_CMD(HIF_CTRL) ||
    48			   cmd == MCU_UNI_CMD(OFFLOAD) ||
    49			   cmd == MCU_UNI_CMD(SUSPEND)) {
    50			struct mt76_connac_mcu_uni_event *event;
    51	
    52			skb_pull(skb, sizeof(*rxd));
    53			event = (struct mt76_connac_mcu_uni_event *)skb->data;
    54			ret = le32_to_cpu(event->status);
    55			/* skip invalid event */
    56			if (mcu_cmd != event->cid)
    57				ret = -EAGAIN;
    58		} else if (cmd == MCU_CE_QUERY(REG_READ)) {
    59			struct mt76_connac_mcu_reg_event *event;
    60	
    61			skb_pull(skb, sizeof(*rxd));
    62			event = (struct mt76_connac_mcu_reg_event *)skb->data;
    63			ret = (int)le32_to_cpu(event->val);
    64		} else if (cmd == MCU_EXT_CMD(WF_RF_PIN_CTRL)) {
    65			struct mt7921_wf_rf_pin_ctrl_event *event;
    66	
    67			skb_pull(skb, sizeof(*rxd));
    68			event = (struct mt7921_wf_rf_pin_ctrl_event *)skb->data;
  > 69			ret = (int)le32_to_cpu(event->result);
    70		} else {
    71			skb_pull(skb, sizeof(struct mt76_connac2_mcu_rxd));
    72		}
    73	
    74		return ret;
    75	}
    76	EXPORT_SYMBOL_GPL(mt7921_mcu_parse_response);
    77	

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