[ath6kl:pending 41/67] drivers/net/wireless/ath/ath10k/mac.c:3804:4: warning: 'is_mgmt' may be used uninitialized in this function

[kbuild test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git pending
head:   76c4c513df5aa9cd9e019b463d8f3d38d1cd572e
commit: 6421969f248fdf9d8cd38353a617ed7cc5ddab94 [41/67] ath10k: refactor tx pending management
config: x86_64-randconfig-s5-03070223 (attached as .config)
reproduce:
        git checkout 6421969f248fdf9d8cd38353a617ed7cc5ddab94
        # save the attached .config to linux build tree
        make ARCH=x86_64 

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.
http://gcc.gnu.org/wiki/Better_Uninitialized_Warnings

All warnings (new ones prefixed by >>):

   drivers/net/wireless/ath/ath10k/mac.c: In function 'ath10k_mac_op_tx':
>> drivers/net/wireless/ath/ath10k/mac.c:3804:4: warning: 'is_mgmt' may be used uninitialized in this function [-Wmaybe-uninitialized]
       ath10k_htt_tx_dec_pending(htt, is_mgmt);
       ^

vim +/is_mgmt +3804 drivers/net/wireless/ath/ath10k/mac.c

  3788			if (ret) {
  3789				ath10k_warn(ar, "failed to increase tx pending count: %d, dropping\n",
  3790					    ret);
  3791				spin_unlock_bh(&ar->htt.tx_lock);
  3792				ieee80211_free_txskb(ar->hw, skb);
  3793				return;
  3794			}
  3795	
  3796			spin_unlock_bh(&ar->htt.tx_lock);
  3797		}
  3798	
  3799		ret = ath10k_mac_tx(ar, vif, sta, txmode, txpath, skb);
  3800		if (ret) {
  3801			ath10k_warn(ar, "failed to transmit frame: %d\n", ret);
  3802			if (is_htt) {
  3803				spin_lock_bh(&ar->htt.tx_lock);
> 3804				ath10k_htt_tx_dec_pending(htt, is_mgmt);
  3805				spin_unlock_bh(&ar->htt.tx_lock);
  3806			}
  3807			return;
  3808		}
  3809	}
  3810	
  3811	/* Must not be called with conf_mutex held as workers can use that also. */
  3812	void ath10k_drain_tx(struct ath10k *ar)

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation
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