Hi,

[auto build test ERROR on ath6kl/ath-next]
[also build test ERROR on v4.7-rc3 next-20160614]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Ashok-Raj-Nagarajan/ath10k-add-support-for-controlling-tx-power-to-a-station/20160615-014225
base:   https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git ath-next
config: x86_64-allmodconfig (attached as .config)
compiler: gcc-6 (Debian 6.1.1-1) 6.1.1 20160430
reproduce:
        # save the attached .config to linux build tree
        make ARCH=x86_64 

All errors (new ones prefixed by >>):

   drivers/net/wireless/ath/ath10k/mac.c: In function 'ath10k_sta_set_txpwr':
>> drivers/net/wireless/ath/ath10k/mac.c:5836:13: error: 'struct ieee80211_sta' has no member named 'txpwr'
     txpwr = sta->txpwr;
                ^~
   drivers/net/wireless/ath/ath10k/mac.c: At top level:
>> drivers/net/wireless/ath/ath10k/mac.c:7399:2: error: unknown field 'sta_set_txpwr' specified in initializer
     .sta_set_txpwr   = ath10k_sta_set_txpwr,
     ^
>> drivers/net/wireless/ath/ath10k/mac.c:7399:21: error: initialization from incompatible pointer type [-Werror=incompatible-pointer-types]
     .sta_set_txpwr   = ath10k_sta_set_txpwr,
                        ^~~~~~~~~~~~~~~~~~~~
   drivers/net/wireless/ath/ath10k/mac.c:7399:21: note: (near initialization for 'ath10k_ops.sta_pre_rcu_remove')
   cc1: some warnings being treated as errors

vim +5836 drivers/net/wireless/ath/ath10k/mac.c

  5830	{
  5831		struct ath10k *ar = hw->priv;
  5832		struct ath10k_vif *arvif = ath10k_vif_to_arvif(vif);
  5833		int ret = 0;
  5834		u8 txpwr;
  5835	
> 5836		txpwr = sta->txpwr;
  5837		if (txpwr > ATH10K_TX_POWER_MAX_VAL || txpwr < ATH10K_TX_POWER_MIN_VAL)
  5838			return -EINVAL;
  5839	

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