tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: d61c8b66c84080ecf8f9f4d9272ab4ec78029a59 commit: 3de4cb1756565a22321039eb9ae0193519bed967 [10405/12612] mt76: mt7915: add support for tx status reporting config: powerpc-allyesconfig (attached as .config) compiler: powerpc64-linux-gcc (GCC) 9.3.0 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: v0.6.3-341-g8af24329-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commi... git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 3de4cb1756565a22321039eb9ae0193519bed967 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' W=1 ARCH=powerpc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; sparse warnings: (new ones prefixed by >>) vim +1222 drivers/net/wireless/mediatek/mt76/mt7915/mac.c 1206 1207 static bool 1208 mt7915_mac_add_txs_skb(struct mt7915_dev *dev, struct mt76_wcid *wcid, int pid, 1209 __le32 *txs_data) 1210 { 1211 struct mt76_dev *mdev = &dev->mt76; 1212 struct ieee80211_tx_info *info; 1213 struct sk_buff_head list; 1214 struct sk_buff *skb; 1215 1216 mt76_tx_status_lock(mdev, &list); 1217 skb = mt76_tx_status_skb_get(mdev, wcid, pid, &list); 1218 if (!skb) 1219 goto out; 1220 1221 info = IEEE80211_SKB_CB(skb); 1223 info->flags |= IEEE80211_TX_STAT_ACK; 1224 1225 info->status.ampdu_len = 1; 1226 info->status.ampdu_ack_len = !!(info->flags & 1227 IEEE80211_TX_STAT_ACK); 1228 1229 info->status.rates[0].idx = -1; 1230 mt76_tx_status_skb_done(mdev, skb, &list); 1231 1232 out: 1233 mt76_tx_status_unlock(mdev, &list); 1234 1235 return !!skb; 1236 } 1237 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org