tree: https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git willy-maple head: 7e346d2845b4bd77663394f39fa70456e0084c86 commit: 824aa5e4af0be646da193e90e3383651b93f1c8d [125/202] Maple Tree: Add new data structure config: alpha-defconfig (attached as .config) compiler: alpha-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://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git/commit/?id=824aa5e4af0be646da193e90e3383651b93f1c8d git remote add rcu https://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu.git git fetch --no-tags rcu willy-maple git checkout 824aa5e4af0be646da193e90e3383651b93f1c8d # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> All warnings (new ones prefixed by >>): >> lib/maple_tree.c:3273:6: warning: no previous prototype for 'mas_is_span_wr' >> [-Wmissing-prototypes] 3273 | bool mas_is_span_wr(struct ma_state *mas, unsigned long piv, | ^~~~~~~~~~~~~~ >> lib/maple_tree.c:3373:6: warning: no previous prototype for 'mas_wr_walk' >> [-Wmissing-prototypes] 3373 | bool mas_wr_walk(struct ma_state *mas, unsigned long *range_min, | ^~~~~~~~~~~ >> lib/maple_tree.c:5633:5: warning: no previous prototype for 'mtree_store' >> [-Wmissing-prototypes] 5633 | int mtree_store(struct maple_tree *mt, unsigned long index, void *entry, | ^~~~~~~~~~~ >> lib/maple_tree.c:5692:5: warning: no previous prototype for >> 'mtree_alloc_range' [-Wmissing-prototypes] 5692 | int mtree_alloc_range(struct maple_tree *mt, unsigned long *startp, | ^~~~~~~~~~~~~~~~~ >> lib/maple_tree.c:5727:5: warning: no previous prototype for >> 'mtree_alloc_rrange' [-Wmissing-prototypes] 5727 | int mtree_alloc_rrange(struct maple_tree *mt, unsigned long *startp, | ^~~~~~~~~~~~~~~~~~ lib/maple_tree.c:31:28: warning: 'mt_max' defined but not used [-Wunused-const-variable=] 31 | static const unsigned long mt_max[] = { | ^~~~~~ vim +/mas_is_span_wr +3273 lib/maple_tree.c 3259 3260 /* 3261 * mas_is_span_wr() - Check if the write needs to be treated as a write that 3262 * spans the node. 3263 * @mas: The maple state 3264 * @piv: The pivot value being written 3265 * @type: The maple node type 3266 * @entry: The data to write 3267 * 3268 * Spanning writes are writes that start in one node and end in another OR if 3269 * the write of a %NULL will cause the node to end with a %NULL. 3270 * 3271 * Return: True if this is a spanning write, false otherwise. 3272 */ > 3273 bool mas_is_span_wr(struct ma_state *mas, unsigned long piv, 3274 enum maple_type type, void *entry) 3275 { 3276 unsigned long max; 3277 unsigned long last = mas->last; 3278 3279 if (piv > last) // Contained in this pivot 3280 return false; 3281 3282 max = mas->max; 3283 if (unlikely(ma_is_leaf(type))) { 3284 if (last < max) // Fits in the node, but may span slots. 3285 return false; 3286 3287 if ((last == max) && entry) // Writes to the end of the node but not null. 3288 return false; 3289 } else if ((piv == last) && entry) { 3290 return false; 3291 } 3292 3293 /* Writing ULONG_MAX is not a spanning write regardless of the value 3294 * being written as long as the range fits in the node. 3295 */ 3296 if ((last == ULONG_MAX) && (last == max)) 3297 return false; 3298 3299 trace_mas_is_span_wr(mas, piv, entry); 3300 3301 return true; 3302 } 3303 3304 /* 3305 * mas_node_walk() - Walk a maple node to offset of the index. 3306 * @mas: The maple state 3307 * @type: The maple node type 3308 * @*range_min: Pointer to store the minimum range of the offset 3309 * @*range_max: Pointer to store the maximum range of the offset 3310 * 3311 * The offset will be stored in the maple state. 3312 * 3313 */ 3314 static inline void mas_node_walk(struct ma_state *mas, enum maple_type type, 3315 unsigned long *range_min, unsigned long *range_max) 3316 { 3317 unsigned long *pivots = ma_pivots(mas_mn(mas), type); 3318 unsigned char offset, count; 3319 unsigned long min, max, index; 3320 3321 if (unlikely(ma_is_dense(type))) { 3322 (*range_max) = (*range_min) = mas->index; 3323 mas->offset = mas->index = mas->min; 3324 return; 3325 } 3326 3327 offset = mas->offset; 3328 min = mas_safe_min(mas, pivots, offset); 3329 count = mt_pivots[type]; 3330 if (unlikely(offset == count)) 3331 goto max; 3332 3333 index = mas->index; 3334 max = pivots[offset]; 3335 if (unlikely(index <= max)) 3336 goto done; 3337 3338 if (unlikely(!max && offset)) 3339 goto max; 3340 3341 offset++; 3342 min = max + 1; 3343 while (offset < count) { 3344 max = pivots[offset]; 3345 if (index <= max) 3346 goto done; 3347 3348 if (unlikely(!max)) 3349 break; 3350 3351 min = max + 1; 3352 offset++; 3353 } 3354 3355 max: 3356 max = mas->max; 3357 done: 3358 *range_max = max; 3359 *range_min = min; 3360 mas->offset = offset; 3361 } 3362 3363 /* 3364 * mas_wr_walk(): Walk the tree for a write. 3365 * @range_min - pointer that will be set to the minimum of the slot range 3366 * @range_max - pointer that will be set to the maximum of the slot range 3367 * @entry - the value that will be written. 3368 * 3369 * Uses mas_slot_locked() and does not need to worry about dead nodes. 3370 * 3371 * Return: True if it's contained in a node, false on spanning write. 3372 */ > 3373 bool mas_wr_walk(struct ma_state *mas, unsigned long *range_min, 3374 unsigned long *range_max, void *entry) 3375 { 3376 enum maple_type type; 3377 3378 while (true) { 3379 type = mte_node_type(mas->node); 3380 mas->depth++; 3381 3382 mas_node_walk(mas, type, range_min, range_max); 3383 if (mas_is_span_wr(mas, *range_max, type, entry)) 3384 return false; 3385 3386 if (ma_is_leaf(type)) 3387 return true; 3388 3389 // Traverse. 3390 mas->max = *range_max; 3391 mas->min = *range_min; 3392 mas->node = mas_slot_locked(mas, ma_slots(mas_mn(mas), type), 3393 mas->offset); 3394 mas->offset = 0; 3395 } 3396 return true; 3397 } 3398 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
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