tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 7c5e07b73ff3011c9b82d4a3286a3362b951ad2b commit: 81151ce462e533551f3284bfdb8e0f461c9220e6 [9724/13542] wifi: mac80211: support MLO authentication/association with one link config: x86_64-randconfig-c007 (https://download.01.org/0day-ci/archive/20220803/202208030858.knIauqwf-lkp@xxxxxxxxx/config) compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 52cd00cabf479aa7eb6dbb063b7ba41ea57bce9e) 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/next/linux-next.git/commit/?id=81151ce462e533551f3284bfdb8e0f461c9220e6 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 81151ce462e533551f3284bfdb8e0f461c9220e6 # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 clang-analyzer If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <yujie.liu@xxxxxxxxx> clang-analyzer warnings: (new ones prefixed by >>) >> net/mac80211/mlme.c:1161:4: warning: Value stored to 'at_extension' is never read [clang-analyzer-deadcode.DeadStores] at_extension = true; ^ ~~~~ vim +/at_extension +1161 net/mac80211/mlme.c 978420c2105ca9 Johannes Berg 2022-07-12 1137 81151ce462e533 Johannes Berg 2022-06-01 1138 static void ieee80211_add_non_inheritance_elem(struct sk_buff *skb, 81151ce462e533 Johannes Berg 2022-06-01 1139 const u16 *outer, 81151ce462e533 Johannes Berg 2022-06-01 1140 const u16 *inner) 81151ce462e533 Johannes Berg 2022-06-01 1141 { 81151ce462e533 Johannes Berg 2022-06-01 1142 unsigned int skb_len = skb->len; 81151ce462e533 Johannes Berg 2022-06-01 1143 bool added = false; 81151ce462e533 Johannes Berg 2022-06-01 1144 int i, j; 81151ce462e533 Johannes Berg 2022-06-01 1145 u8 *len, *list_len = NULL; 81151ce462e533 Johannes Berg 2022-06-01 1146 81151ce462e533 Johannes Berg 2022-06-01 1147 skb_put_u8(skb, WLAN_EID_EXTENSION); 81151ce462e533 Johannes Berg 2022-06-01 1148 len = skb_put(skb, 1); 81151ce462e533 Johannes Berg 2022-06-01 1149 skb_put_u8(skb, WLAN_EID_EXT_NON_INHERITANCE); 81151ce462e533 Johannes Berg 2022-06-01 1150 81151ce462e533 Johannes Berg 2022-06-01 1151 for (i = 0; i < PRESENT_ELEMS_MAX && outer[i]; i++) { 81151ce462e533 Johannes Berg 2022-06-01 1152 u16 elem = outer[i]; 81151ce462e533 Johannes Berg 2022-06-01 1153 bool have_inner = false; 81151ce462e533 Johannes Berg 2022-06-01 @1154 bool at_extension = false; 81151ce462e533 Johannes Berg 2022-06-01 1155 81151ce462e533 Johannes Berg 2022-06-01 1156 /* should at least be sorted in the sense of normal -> ext */ 81151ce462e533 Johannes Berg 2022-06-01 1157 WARN_ON(at_extension && elem < PRESENT_ELEM_EXT_OFFS); 81151ce462e533 Johannes Berg 2022-06-01 1158 81151ce462e533 Johannes Berg 2022-06-01 1159 /* switch to extension list */ 81151ce462e533 Johannes Berg 2022-06-01 1160 if (!at_extension && elem >= PRESENT_ELEM_EXT_OFFS) { 81151ce462e533 Johannes Berg 2022-06-01 @1161 at_extension = true; 81151ce462e533 Johannes Berg 2022-06-01 1162 if (!list_len) 81151ce462e533 Johannes Berg 2022-06-01 1163 skb_put_u8(skb, 0); 81151ce462e533 Johannes Berg 2022-06-01 1164 list_len = NULL; 81151ce462e533 Johannes Berg 2022-06-01 1165 } 81151ce462e533 Johannes Berg 2022-06-01 1166 81151ce462e533 Johannes Berg 2022-06-01 1167 for (j = 0; j < PRESENT_ELEMS_MAX && inner[j]; j++) { 81151ce462e533 Johannes Berg 2022-06-01 1168 if (elem == inner[j]) { 81151ce462e533 Johannes Berg 2022-06-01 1169 have_inner = true; 81151ce462e533 Johannes Berg 2022-06-01 1170 break; 81151ce462e533 Johannes Berg 2022-06-01 1171 } 81151ce462e533 Johannes Berg 2022-06-01 1172 } 81151ce462e533 Johannes Berg 2022-06-01 1173 81151ce462e533 Johannes Berg 2022-06-01 1174 if (have_inner) 81151ce462e533 Johannes Berg 2022-06-01 1175 continue; 81151ce462e533 Johannes Berg 2022-06-01 1176 81151ce462e533 Johannes Berg 2022-06-01 1177 if (!list_len) { 81151ce462e533 Johannes Berg 2022-06-01 1178 list_len = skb_put(skb, 1); 81151ce462e533 Johannes Berg 2022-06-01 1179 *list_len = 0; 81151ce462e533 Johannes Berg 2022-06-01 1180 } 81151ce462e533 Johannes Berg 2022-06-01 1181 *list_len += 1; 81151ce462e533 Johannes Berg 2022-06-01 1182 skb_put_u8(skb, (u8)elem); 81151ce462e533 Johannes Berg 2022-06-01 1183 } 81151ce462e533 Johannes Berg 2022-06-01 1184 81151ce462e533 Johannes Berg 2022-06-01 1185 if (!added) 81151ce462e533 Johannes Berg 2022-06-01 1186 skb_trim(skb, skb_len); 81151ce462e533 Johannes Berg 2022-06-01 1187 else 81151ce462e533 Johannes Berg 2022-06-01 1188 *len = skb->len - skb_len - 2; 81151ce462e533 Johannes Berg 2022-06-01 1189 } 81151ce462e533 Johannes Berg 2022-06-01 1190 -- 0-DAY CI Kernel Test Service https://01.org/lkp
