tree: https://github.com/hnaz/linux-mm master head: bf4803abaa3e9d2fa207c0675a2d2abf0fd44f66 commit: c11c433e3be4e5bef47f0a62a72064e18708e952 [280/410] Maple Tree: add new data structure config: arm-moxart_defconfig (https://download.01.org/0day-ci/archive/20220430/202204300731.xnlH7nv1-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 400775649969b9baf3bc2a510266e7912bb16ae9) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/hnaz/linux-mm/commit/c11c433e3be4e5bef47f0a62a72064e18708e952 git remote add hnaz-mm https://github.com/hnaz/linux-mm git fetch --no-tags hnaz-mm master git checkout c11c433e3be4e5bef47f0a62a72064e18708e952 # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): lib/maple_tree.c:324:20: warning: unused function 'mte_set_full' [-Wunused-function] static inline void mte_set_full(const struct maple_enode *node) ^ lib/maple_tree.c:329:20: warning: unused function 'mte_clear_full' [-Wunused-function] static inline void mte_clear_full(const struct maple_enode *node) ^ >> lib/maple_tree.c:4207:20: warning: stack frame size (1088) exceeds limit (1024) in 'mas_wr_modify' [-Wframe-larger-than] static inline void mas_wr_modify(struct ma_wr_state *wr_mas) ^ 3 warnings generated. vim +/mas_wr_modify +4207 lib/maple_tree.c 4206 > 4207 static inline void mas_wr_modify(struct ma_wr_state *wr_mas) 4208 { 4209 unsigned char node_slots; 4210 unsigned char node_size; 4211 struct ma_state *mas = wr_mas->mas; 4212 struct maple_big_node b_node; 4213 4214 /* Direct replacement */ 4215 if (wr_mas->r_min == mas->index && wr_mas->r_max == mas->last) { 4216 rcu_assign_pointer(wr_mas->slots[mas->offset], wr_mas->entry); 4217 if (!!wr_mas->entry ^ !!wr_mas->content) 4218 mas_update_gap(mas); 4219 return; 4220 } 4221 4222 /* Attempt to append */ 4223 node_slots = mt_slots[wr_mas->type]; 4224 node_size = wr_mas->node_end - wr_mas->offset_end + mas->offset + 2; 4225 if (mas->max == ULONG_MAX) 4226 node_size++; 4227 4228 /* slot and node store will not fit, go to the slow path */ 4229 if (unlikely(node_size >= node_slots)) 4230 goto slow_path; 4231 4232 if (wr_mas->entry && (wr_mas->node_end < node_slots - 1) && 4233 (mas->offset == wr_mas->node_end) && mas_wr_append(wr_mas)) { 4234 if (!wr_mas->content || !wr_mas->entry) 4235 mas_update_gap(mas); 4236 return; 4237 } 4238 4239 if ((wr_mas->offset_end - mas->offset <= 1) && mas_wr_slot_store(wr_mas)) 4240 return; 4241 else if (mas_wr_node_store(wr_mas)) 4242 return; 4243 4244 if (mas_is_err(mas)) 4245 return; 4246 4247 slow_path: 4248 memset(&b_node, 0, sizeof(struct maple_big_node)); 4249 mas_store_b_node(wr_mas, &b_node, wr_mas->offset_end); 4250 trace_ma_write(__func__, mas, 0, wr_mas->entry); 4251 mas_commit_b_node(wr_mas, &b_node, wr_mas->node_end); 4252 } 4253 -- 0-DAY CI Kernel Test Service https://01.org/lkp
