Hi Wen, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on mac80211-next/master] [also build test WARNING on mac80211/master v5.10 next-20201223] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Wen-Gong/mac80211-do-intersection-with-he-mcs-and-nss-set-of-peer-and-own/20201222-103106 base: https://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next.git master config: nds32-randconfig-p002-20201222 (attached as .config) compiler: nds32le-linux-gcc (GCC) 9.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/68bea73c7cc3c3640743b1ea62940dd03fcee14f git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Wen-Gong/mac80211-do-intersection-with-he-mcs-and-nss-set-of-peer-and-own/20201222-103106 git checkout 68bea73c7cc3c3640743b1ea62940dd03fcee14f # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=nds32 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> net/mac80211/he.c:56:1: warning: no previous prototype for 'ieee80211_he_mcs_disable' [-Wmissing-prototypes] 56 | ieee80211_he_mcs_disable(u16 *he_mcs) | ^~~~~~~~~~~~~~~~~~~~~~~~ >> net/mac80211/he.c:65:1: warning: no previous prototype for 'ieee80211_he_mcs_intersection' [-Wmissing-prototypes] 65 | ieee80211_he_mcs_intersection(u16 *he_own_rx, u16 *he_peer_rx, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/ieee80211_he_mcs_disable +56 net/mac80211/he.c 54 55 void > 56 ieee80211_he_mcs_disable(u16 *he_mcs) 57 { 58 u32 i; 59 60 for (i = 0; i < 8; i++) 61 *he_mcs |= cpu_to_le16(IEEE80211_HE_MCS_NOT_SUPPORTED << i * 2); 62 } 63 64 void > 65 ieee80211_he_mcs_intersection(u16 *he_own_rx, u16 *he_peer_rx, 66 u16 *he_own_tx, u16 *he_peer_tx) 67 { 68 u32 i; 69 u16 own_rx, own_tx, peer_rx, peer_tx; 70 71 for (i = 0; i < 8; i++) { 72 own_rx = le16_to_cpu(*he_own_rx); 73 own_rx = (own_rx >> i * 2) & IEEE80211_HE_MCS_NOT_SUPPORTED; 74 75 own_tx = le16_to_cpu(*he_own_tx); 76 own_tx = (own_tx >> i * 2) & IEEE80211_HE_MCS_NOT_SUPPORTED; 77 78 peer_rx = le16_to_cpu(*he_peer_rx); 79 peer_rx = (peer_rx >> i * 2) & IEEE80211_HE_MCS_NOT_SUPPORTED; 80 81 peer_tx = le16_to_cpu(*he_peer_tx); 82 peer_tx = (peer_tx >> i * 2) & IEEE80211_HE_MCS_NOT_SUPPORTED; 83 84 if (peer_tx != IEEE80211_HE_MCS_NOT_SUPPORTED) { 85 if (own_rx == IEEE80211_HE_MCS_NOT_SUPPORTED) 86 peer_tx = IEEE80211_HE_MCS_NOT_SUPPORTED; 87 else if (own_rx < peer_tx) 88 peer_tx = own_rx; 89 } 90 91 if (peer_rx != IEEE80211_HE_MCS_NOT_SUPPORTED) { 92 if (own_tx == IEEE80211_HE_MCS_NOT_SUPPORTED) 93 peer_rx = IEEE80211_HE_MCS_NOT_SUPPORTED; 94 else if (own_tx < peer_rx) 95 peer_rx = own_tx; 96 } 97 98 *he_peer_rx &= 99 ~cpu_to_le16(IEEE80211_HE_MCS_NOT_SUPPORTED << i * 2); 100 *he_peer_rx |= cpu_to_le16(peer_rx << i * 2); 101 102 *he_peer_tx &= 103 ~cpu_to_le16(IEEE80211_HE_MCS_NOT_SUPPORTED << i * 2); 104 *he_peer_tx |= cpu_to_le16(peer_tx << i * 2); 105 } 106 } 107 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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