tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: fb57b1fabcb28f358901b2df90abd2b48abc1ca8 commit: 89029a85482cbcf68026a89fc974e8f6898d6b37 [7920/10701] mt76: mt7915: add Tx beamformer support config: ia64-allmodconfig (attached as .config) compiler: ia64-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 git checkout 89029a85482cbcf68026a89fc974e8f6898d6b37 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/net/wireless/mediatek/mt76/mt7915/mcu.c: In function 'mt7915_mcu_sta_txbf_type': 1775 | struct mt7915_sta *msta; | ^~~~ vim +/msta +1775 drivers/net/wireless/mediatek/mt76/mt7915/mcu.c 1770 1771 static u8 1772 mt7915_mcu_sta_txbf_type(struct mt7915_phy *phy, struct ieee80211_vif *vif, 1773 struct ieee80211_sta *sta) 1774 { 1776 u8 type = 0; 1777 1778 if (vif->type != NL80211_IFTYPE_STATION && 1779 vif->type != NL80211_IFTYPE_AP) 1780 return 0; 1781 1782 msta = (struct mt7915_sta *)sta->drv_priv; 1783 1784 if (sta->he_cap.has_he) { 1785 struct ieee80211_he_cap_elem *pe; 1786 const struct ieee80211_he_cap_elem *ve; 1787 const struct ieee80211_sta_he_cap *vc; 1788 1789 pe = &sta->he_cap.he_cap_elem; 1790 vc = mt7915_get_he_phy_cap(phy, vif); 1791 ve = &vc->he_cap_elem; 1792 1793 if ((HE_PHY(CAP3_SU_BEAMFORMER, ve->phy_cap_info[3]) || 1794 HE_PHY(CAP4_MU_BEAMFORMER, ve->phy_cap_info[4])) && 1795 HE_PHY(CAP4_SU_BEAMFORMEE, pe->phy_cap_info[4])) 1796 type |= MT_STA_BFER; 1797 } else if (sta->vht_cap.vht_supported) { 1798 struct ieee80211_sta_vht_cap *pc; 1799 struct ieee80211_sta_vht_cap *vc; 1800 u32 cr, ce; 1801 1802 pc = &sta->vht_cap; 1803 vc = &phy->mt76->sband_5g.sband.vht_cap; 1804 cr = IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE | 1805 IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE; 1806 ce = IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE | 1807 IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE; 1808 1809 if ((vc->cap & cr) && (pc->cap & ce)) 1810 type |= MT_STA_BFER; 1811 } else if (sta->ht_cap.ht_supported) { 1812 /* TODO: iBF */ 1813 } 1814 1815 return type; 1816 } 1817 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org