[chrome-os:chromeos-5.4 9642/9999] drivers/net/wireless/ath/ath10k/htc.c:635:25: sparse: sparse: cast to restricted __le16

[chrome-os:chromeos-5.4 9642/9999] drivers/net/wireless/ath/ath10k/htc.c:635:25: sparse: sparse: cast to restricted __le16

[kernel test robot]

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tree:   https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.4
head:   cf079f9c976566e670c2d6d173481f75edfda8b7
commit: 60fdebd0f6870ae5ba17d15b7ea3610de330a4e0 [9642/9999] FROMLIST: ath10k: Set tx credit to one for wcn3990 snoc based devices
config: alpha-randconfig-s032-20220130 (https://download.01.org/0day-ci/archive/20220201/202202010441.k1jjydBz-lkp(a)intel.com/config)
compiler: alpha-linux-gcc (GCC) 11.2.0
reproduce:
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # apt-get install sparse
        # sparse version: v0.6.4-dirty
        git remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel
        git fetch --no-tags chrome-os chromeos-5.4
        git checkout 60fdebd0f6870ae5ba17d15b7ea3610de330a4e0
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=alpha SHELL=/bin/bash drivers/net/wireless/ath/ath10k/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)
>> drivers/net/wireless/ath/ath10k/htc.c:635:25: sparse: sparse: cast to restricted __le16

vim +635 drivers/net/wireless/ath/ath10k/htc.c

   583	
   584	int ath10k_htc_wait_target(struct ath10k_htc *htc)
   585	{
   586		struct ath10k *ar = htc->ar;
   587		int i, status = 0;
   588		unsigned long time_left;
   589		struct ath10k_htc_msg *msg;
   590		u16 message_id;
   591	
   592		time_left = wait_for_completion_timeout(&htc->ctl_resp,
   593							ATH10K_HTC_WAIT_TIMEOUT_HZ);
   594		if (!time_left) {
   595			/* Workaround: In some cases the PCI HIF doesn't
   596			 * receive interrupt for the control response message
   597			 * even if the buffer was completed. It is suspected
   598			 * iomap writes unmasking PCI CE irqs aren't propagated
   599			 * properly in KVM PCI-passthrough sometimes.
   600			 */
   601			ath10k_warn(ar, "failed to receive control response completion, polling..\n");
   602	
   603			for (i = 0; i < CE_COUNT; i++)
   604				ath10k_hif_send_complete_check(htc->ar, i, 1);
   605	
   606			time_left =
   607			wait_for_completion_timeout(&htc->ctl_resp,
   608						    ATH10K_HTC_WAIT_TIMEOUT_HZ);
   609	
   610			if (!time_left)
   611				status = -ETIMEDOUT;
   612		}
   613	
   614		if (status < 0) {
   615			ath10k_err(ar, "ctl_resp never came in (%d)\n", status);
   616			return status;
   617		}
   618	
   619		if (htc->control_resp_len < sizeof(msg->hdr) + sizeof(msg->ready)) {
   620			ath10k_err(ar, "Invalid HTC ready msg len:%d\n",
   621				   htc->control_resp_len);
   622			return -ECOMM;
   623		}
   624	
   625		msg = (struct ath10k_htc_msg *)htc->control_resp_buffer;
   626		message_id   = __le16_to_cpu(msg->hdr.message_id);
   627	
   628		if (message_id != ATH10K_HTC_MSG_READY_ID) {
   629			ath10k_err(ar, "Invalid HTC ready msg: 0x%x\n", message_id);
   630			return -ECOMM;
   631		}
   632	
   633		if (ar->hw_params.tx_credit_limit)
   634			htc->total_transmit_credits =
 > 635				__le16_to_cpu(HTC_HOST_MAX_CREDIT_COUNT);
   636		else
   637			htc->total_transmit_credits =
   638				__le16_to_cpu(msg->ready.credit_count);
   639	
   640		htc->target_credit_size = __le16_to_cpu(msg->ready.credit_size);
   641	
   642		ath10k_dbg(ar, ATH10K_DBG_HTC,
   643			   "Target ready! transmit resources: %d size:%d actual credits:%d\n",
   644			   htc->total_transmit_credits,
   645			   htc->target_credit_size,
   646			   msg->ready.credit_count);
   647	
   648		if ((htc->total_transmit_credits == 0) ||
   649		    (htc->target_credit_size == 0)) {
   650			ath10k_err(ar, "Invalid credit size received\n");
   651			return -ECOMM;
   652		}
   653	
   654		/* The only way to determine if the ready message is an extended
   655		 * message is from the size.
   656		 */
   657		if (htc->control_resp_len >=
   658		    sizeof(msg->hdr) + sizeof(msg->ready_ext)) {
   659			htc->max_msgs_per_htc_bundle =
   660				min_t(u8, msg->ready_ext.max_msgs_per_htc_bundle,
   661				      HTC_HOST_MAX_MSG_PER_RX_BUNDLE);
   662			ath10k_dbg(ar, ATH10K_DBG_HTC,
   663				   "Extended ready message. RX bundle size: %d\n",
   664				   htc->max_msgs_per_htc_bundle);
   665		}
   666	
   667		return 0;
   668	}
   669	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org