tree: https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next.git pending head: b15caa03d4e21e9e8dbc81f6ac09171a2871af1d commit: 741d1c0dbb94288b29ba79d187a2898f02d085af [41/42] mac80211: calculate max rx nss for EHT mode config: nds32-buildonly-randconfig-r002-20220201 (https://download.01.org/0day-ci/archive/20220202/202202020632.f5qedDLM-lkp@intel.com/config) compiler: nds32le-linux-gcc (GCC) 11.2.0 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://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next.git/commit/?id=741d1c0dbb94288b29ba79d187a2898f02d085af git remote add iwlwifi-next https://git.kernel.org/pub/scm/linux/kernel/git/iwlwifi/iwlwifi-next.git git fetch --no-tags iwlwifi-next pending git checkout 741d1c0dbb94288b29ba79d187a2898f02d085af # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=nds32 SHELL=/bin/bash net/mac80211/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): net/mac80211/vht.c: In function 'ieee80211_sta_set_rx_nss': >> net/mac80211/vht.c:493:22: error: 'struct ieee80211_sta' has no member named 'eht_cap'; did you mean 'ht_cap'? 493 | if (sta->sta.eht_cap.has_eht) { | ^~~~~~~ | ht_cap net/mac80211/vht.c:495:58: error: 'struct ieee80211_sta' has no member named 'eht_cap'; did you mean 'ht_cap'? 495 | const u8 *rx_nss_mcs = (void *)&sta->sta.eht_cap.eht_mcs_nss_supp; | ^~~~~~~ | ht_cap >> net/mac80211/vht.c:498:40: error: invalid application of 'sizeof' to incomplete type 'struct ieee80211_eht_mcs_nss_supp' 498 | for (i = 0; i < sizeof(struct ieee80211_eht_mcs_nss_supp); i++) | ^~~~~~ In file included from include/linux/kernel.h:26, from include/linux/skbuff.h:13, from include/linux/if_ether.h:19, from include/linux/ieee80211.h:19, from net/mac80211/vht.c:10: >> net/mac80211/vht.c:501:56: error: 'IEEE80211_EHT_MCS_NSS_RX' undeclared (first use in this function); did you mean 'IEEE80211_HT_MCS_MASK_LEN'? 501 | IEEE80211_EHT_MCS_NSS_RX)); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:46: note: in definition of macro '__typecheck' 20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) | ^ include/linux/minmax.h:36:31: note: in expansion of macro '__safe_cmp' 36 | __builtin_choose_expr(__safe_cmp(x, y), \ | ^~~~~~~~~~ include/linux/minmax.h:112:33: note: in expansion of macro '__careful_cmp' 112 | #define max_t(type, x, y) __careful_cmp((type)(x), (type)(y), >) | ^~~~~~~~~~~~~ net/mac80211/vht.c:499:38: note: in expansion of macro 'max_t' 499 | eht_rx_nss = max_t(u8, eht_rx_nss, | ^~~~~ net/mac80211/vht.c:501:56: note: each undeclared identifier is reported only once for each function it appears in 501 | IEEE80211_EHT_MCS_NSS_RX)); | ^~~~~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:20:46: note: in definition of macro '__typecheck' 20 | (!!(sizeof((typeof(x) *)1 == (typeof(y) *)1))) | ^ include/linux/minmax.h:36:31: note: in expansion of macro '__safe_cmp' 36 | __builtin_choose_expr(__safe_cmp(x, y), \ | ^~~~~~~~~~ include/linux/minmax.h:112:33: note: in expansion of macro '__careful_cmp' 112 | #define max_t(type, x, y) __careful_cmp((type)(x), (type)(y), >) | ^~~~~~~~~~~~~ net/mac80211/vht.c:499:38: note: in expansion of macro 'max_t' 499 | eht_rx_nss = max_t(u8, eht_rx_nss, | ^~~~~ >> include/linux/minmax.h:36:9: error: first argument to '__builtin_choose_expr' not a constant 36 | __builtin_choose_expr(__safe_cmp(x, y), \ | ^~~~~~~~~~~~~~~~~~~~~ include/linux/minmax.h:112:33: note: in expansion of macro '__careful_cmp' 112 | #define max_t(type, x, y) __careful_cmp((type)(x), (type)(y), >) | ^~~~~~~~~~~~~ net/mac80211/vht.c:499:38: note: in expansion of macro 'max_t' 499 | eht_rx_nss = max_t(u8, eht_rx_nss, | ^~~~~ vim +493 net/mac80211/vht.c 483 484 void ieee80211_sta_set_rx_nss(struct sta_info *sta) 485 { 486 u8 ht_rx_nss = 0, vht_rx_nss = 0, he_rx_nss = 0, eht_rx_nss = 0, rx_nss; 487 bool support_160; 488 489 /* if we received a notification already don't overwrite it */ 490 if (sta->sta.rx_nss) 491 return; 492 > 493 if (sta->sta.eht_cap.has_eht) { 494 int i; 495 const u8 *rx_nss_mcs = (void *)&sta->sta.eht_cap.eht_mcs_nss_supp; 496 497 /* get the max nss for EHT over all possible bandwidths and mcs */ > 498 for (i = 0; i < sizeof(struct ieee80211_eht_mcs_nss_supp); i++) 499 eht_rx_nss = max_t(u8, eht_rx_nss, 500 u8_get_bits(rx_nss_mcs[i], > 501 IEEE80211_EHT_MCS_NSS_RX)); 502 } 503 504 if (sta->sta.he_cap.has_he) { 505 int i; 506 u8 rx_mcs_80 = 0, rx_mcs_160 = 0; 507 const struct ieee80211_sta_he_cap *he_cap = &sta->sta.he_cap; 508 u16 mcs_160_map = 509 le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_160); 510 u16 mcs_80_map = le16_to_cpu(he_cap->he_mcs_nss_supp.rx_mcs_80); 511 512 for (i = 7; i >= 0; i--) { 513 u8 mcs_160 = (mcs_160_map >> (2 * i)) & 3; 514 515 if (mcs_160 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { 516 rx_mcs_160 = i + 1; 517 break; 518 } 519 } 520 for (i = 7; i >= 0; i--) { 521 u8 mcs_80 = (mcs_80_map >> (2 * i)) & 3; 522 523 if (mcs_80 != IEEE80211_VHT_MCS_NOT_SUPPORTED) { 524 rx_mcs_80 = i + 1; 525 break; 526 } 527 } 528 529 support_160 = he_cap->he_cap_elem.phy_cap_info[0] & 530 IEEE80211_HE_PHY_CAP0_CHANNEL_WIDTH_SET_160MHZ_IN_5G; 531 532 if (support_160) 533 he_rx_nss = min(rx_mcs_80, rx_mcs_160); 534 else 535 he_rx_nss = rx_mcs_80; 536 } 537 538 if (sta->sta.ht_cap.ht_supported) { 539 if (sta->sta.ht_cap.mcs.rx_mask[0]) 540 ht_rx_nss++; 541 if (sta->sta.ht_cap.mcs.rx_mask[1]) 542 ht_rx_nss++; 543 if (sta->sta.ht_cap.mcs.rx_mask[2]) 544 ht_rx_nss++; 545 if (sta->sta.ht_cap.mcs.rx_mask[3]) 546 ht_rx_nss++; 547 /* FIXME: consider rx_highest? */ 548 } 549 550 if (sta->sta.vht_cap.vht_supported) { 551 int i; 552 u16 rx_mcs_map; 553 554 rx_mcs_map = le16_to_cpu(sta->sta.vht_cap.vht_mcs.rx_mcs_map); 555 556 for (i = 7; i >= 0; i--) { 557 u8 mcs = (rx_mcs_map >> (2 * i)) & 3; 558 559 if (mcs != IEEE80211_VHT_MCS_NOT_SUPPORTED) { 560 vht_rx_nss = i + 1; 561 break; 562 } 563 } 564 /* FIXME: consider rx_highest? */ 565 } 566 567 rx_nss = max(vht_rx_nss, ht_rx_nss); 568 rx_nss = max(he_rx_nss, rx_nss); 569 rx_nss = max(eht_rx_nss, rx_nss); 570 sta->sta.rx_nss = max_t(u8, 1, rx_nss); 571 } 572 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org