Re: [PATCH 2/2] wifi: mt76: mt7925: add test mode support

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

Hi,

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 v6.15-rc5 next-20250509]
[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/sean-wang-kernel-org/wifi-mt76-mt7925-add-test-mode-support/20250506-115641
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next.git main
patch link:    https://lore.kernel.org/r/20250505233618.1951021-2-sean.wang%40kernel.org
patch subject: [PATCH 2/2] wifi: mt76: mt7925: add test mode support
config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20250510/202505102153.oOZ0YXsZ-lkp@intel.com/config)
compiler: loongarch64-linux-gcc (GCC) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250510/202505102153.oOZ0YXsZ-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/202505102153.oOZ0YXsZ-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/net/wireless/mediatek/mt76/mt7925/testmode.c: In function 'mt7925_tm_query':
>> drivers/net/wireless/mediatek/mt76/mt7925/testmode.c:92:38: warning: variable 'evt' set but not used [-Wunused-but-set-variable]
      92 |         struct uni_cmd_testmode_evt *evt;
         |                                      ^~~


vim +/evt +92 drivers/net/wireless/mediatek/mt76/mt7925/testmode.c

    85	
    86	static int
    87	mt7925_tm_query(struct mt792x_dev *dev, struct mt7925_tm_cmd *req,
    88			char *evt_resp)
    89	{
    90		struct mt7925_rftest_cmd cmd;
    91		char *pcmd = (char *)&cmd;
  > 92		struct uni_cmd_testmode_evt *evt;
    93		struct sk_buff *skb = NULL;
    94		int ret = 1;
    95	
    96		memset(pcmd, 0, sizeof(*pcmd));
    97		memcpy(pcmd + 4, (char *)&req->c, sizeof(struct uni_cmd_testmode_ctrl));
    98	
    99		if (*((uint16_t *)req->padding) == MCU_UNI_CMD_TESTMODE_CTRL)
   100			ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_UNI_QUERY(TESTMODE_CTRL),
   101							&cmd, sizeof(cmd), true, &skb);
   102		else if (*((uint16_t *)req->padding) == MCU_UNI_CMD_TESTMODE_RX_STAT)
   103			ret = mt76_mcu_send_and_get_msg(&dev->mt76, MCU_UNI_QUERY(TESTMODE_RX_STAT),
   104							&cmd, sizeof(cmd), true, &skb);
   105	
   106		if (ret)
   107			goto out;
   108	
   109		evt = (struct uni_cmd_testmode_evt *)skb->data;
   110	
   111		memcpy((char *)evt_resp, (char *)skb->data + 8, MT7925_EVT_RSP_LEN);
   112	
   113	out:
   114		dev_kfree_skb(skb);
   115	
   116		return ret;
   117	}
   118	

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