tree: git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git sched/headers head: 1a880941a087613ed42f77001229edfcf75ea8a5 commit: d5182ee55730b8b315527a8f308c7cb6e4f4d569 [1117/2382] headers/deps: Add header dependencies to .c files: <linux/list_lru_api.h> config: i386-randconfig-a014-20220109 (https://download.01.org/0day-ci/archive/20220113/202201130624.YrrhRIcl-lk...) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 244dd2913a43a200f5a6544d424cdc37b771028b) 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/mingo/tip.git/commit/?id=... git remote add mingo-tip git://git.kernel.org/pub/scm/linux/kernel/git/mingo/tip.git git fetch --no-tags mingo-tip sched/headers git checkout d5182ee55730b8b315527a8f308c7cb6e4f4d569 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; Note: the mingo-tip/sched/headers HEAD 1a880941a087613ed42f77001229edfcf75ea8a5 builds fine. It only hurts bisectability. All errors (new ones prefixed by >>): In file included from mm/list_lru.c:8: In file included from include/linux/list_lru_api.h:1: spinlock_t lock; ^ include/linux/list_lru.h:63:14: warning: declaration of 'struct lock_class_key' will not be visible outside of this function [-Wvisibility] struct lock_class_key *key, struct shrinker *shrinker); ^ include/linux/list_lru.h:142:30: error: unknown type name 'spinlock_t' struct list_lru_one *list, spinlock_t *lock, void *cb_arg); ^ mm/list_lru.c:571:5: error: conflicting types for '__list_lru_init' int __list_lru_init(struct list_lru *lru, bool memcg_aware, ^ include/linux/list_lru.h:62:5: note: previous declaration is here int __list_lru_init(struct list_lru *lru, bool memcg_aware, ^ 1 warning and 3 errors generated. -- In file included from mm/workingset.c:8: In file included from include/linux/list_lru_api.h:1: spinlock_t lock; ^ include/linux/list_lru.h:63:14: warning: declaration of 'struct lock_class_key' will not be visible outside of this function [-Wvisibility] struct lock_class_key *key, struct shrinker *shrinker); ^ include/linux/list_lru.h:142:30: error: unknown type name 'spinlock_t' struct list_lru_one *list, spinlock_t *lock, void *cb_arg); ^ return list_lru_shrink_walk_irq(&shadow_nodes, sc, shadow_lru_isolate, ^~~~~~~~~~~~~~~~~~ include/linux/list_lru.h:201:22: note: passing argument to parameter 'isolate' here list_lru_walk_cb isolate, void *cb_arg) ^ ret = __list_lru_init(&shadow_nodes, true, &shadow_nodes_key, ^~~~~~~~~~~~~~~~~ include/linux/list_lru.h:63:30: note: passing argument to parameter 'key' here struct lock_class_key *key, struct shrinker *shrinker); ^ 1 warning and 4 errors generated. -- In file included from mm/vmscan.c:15: In file included from include/linux/list_lru_api.h:1: spinlock_t lock; ^ include/linux/list_lru.h:63:14: warning: declaration of 'struct lock_class_key' will not be visible outside of this function [-Wvisibility] struct lock_class_key *key, struct shrinker *shrinker); ^ include/linux/list_lru.h:142:30: error: unknown type name 'spinlock_t' struct list_lru_one *list, spinlock_t *lock, void *cb_arg); ^ 1 warning and 2 errors generated. -- In file included from fs/dcache.c:18: In file included from include/linux/list_lru_api.h:1: spinlock_t lock; ^ include/linux/list_lru.h:63:14: warning: declaration of 'struct lock_class_key' will not be visible outside of this function [-Wvisibility] struct lock_class_key *key, struct shrinker *shrinker); ^ include/linux/list_lru.h:142:30: error: unknown type name 'spinlock_t' struct list_lru_one *list, spinlock_t *lock, void *cb_arg); ^ fs/dcache.c:1299:10: error: incompatible function pointer types passing 'enum lru_status (struct list_head *, struct list_lru_one *, spinlock_t *, void *)' (aka 'enum lru_status (struct list_head *, struct list_lru_one *, struct spinlock *, void *)') to parameter of type 'list_lru_walk_cb' (aka 'enum lru_status (*)(struct list_head *, struct list_lru_one *, int *, void *)') [-Werror,-Wincompatible-function-pointer-types] dentry_lru_isolate, &dispose); ^~~~~~~~~~~~~~~~~~ include/linux/list_lru.h:193:25: note: passing argument to parameter 'isolate' here list_lru_walk_cb isolate, void *cb_arg) ^ fs/dcache.c:1338:4: error: incompatible function pointer types passing 'enum lru_status (struct list_head *, struct list_lru_one *, spinlock_t *, void *)' (aka 'enum lru_status (struct list_head *, struct list_lru_one *, struct spinlock *, void *)') to parameter of type 'list_lru_walk_cb' (aka 'enum lru_status (*)(struct list_head *, struct list_lru_one *, int *, void *)') [-Werror,-Wincompatible-function-pointer-types] dentry_lru_isolate_shrink, &dispose, 1024); ^~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/list_lru.h:208:54: note: passing argument to parameter 'isolate' here list_lru_walk(struct list_lru *lru, list_lru_walk_cb isolate, ^ 1 warning and 4 errors generated. -- In file included from fs/inode.c:6: In file included from include/linux/list_lru_api.h:1: spinlock_t lock; ^ include/linux/list_lru.h:63:14: warning: declaration of 'struct lock_class_key' will not be visible outside of this function [-Wvisibility] struct lock_class_key *key, struct shrinker *shrinker); ^ include/linux/list_lru.h:142:30: error: unknown type name 'spinlock_t' struct list_lru_one *list, spinlock_t *lock, void *cb_arg); ^ fs/inode.c:831:10: error: incompatible function pointer types passing 'enum lru_status (struct list_head *, struct list_lru_one *, spinlock_t *, void *)' (aka 'enum lru_status (struct list_head *, struct list_lru_one *, struct spinlock *, void *)') to parameter of type 'list_lru_walk_cb' (aka 'enum lru_status (*)(struct list_head *, struct list_lru_one *, int *, void *)') [-Werror,-Wincompatible-function-pointer-types] inode_lru_isolate, &freeable); ^~~~~~~~~~~~~~~~~ include/linux/list_lru.h:193:25: note: passing argument to parameter 'isolate' here list_lru_walk_cb isolate, void *cb_arg) ^ 1 warning and 3 errors generated. -- In file included from fs/gfs2/quota.c:38: In file included from include/linux/list_lru_api.h:1: spinlock_t lock; ^ include/linux/list_lru.h:63:14: warning: declaration of 'struct lock_class_key' will not be visible outside of this function [-Wvisibility] struct lock_class_key *key, struct shrinker *shrinker); ^ include/linux/list_lru.h:142:30: error: unknown type name 'spinlock_t' struct list_lru_one *list, spinlock_t *lock, void *cb_arg); ^ gfs2_qd_isolate, &dispose); ^~~~~~~~~~~~~~~ include/linux/list_lru.h:193:25: note: passing argument to parameter 'isolate' here list_lru_walk_cb isolate, void *cb_arg) ^ 1 warning and 3 errors generated. vim +590 mm/workingset.c 449dd6984d0e47 Johannes Weiner 2014-04-03 585 449dd6984d0e47 Johannes Weiner 2014-04-03 586 static unsigned long scan_shadow_nodes(struct shrinker *shrinker, 449dd6984d0e47 Johannes Weiner 2014-04-03 587 struct shrink_control *sc) 449dd6984d0e47 Johannes Weiner 2014-04-03 588 { b93b016313b3ba Matthew Wilcox 2018-04-10 589 /* list_lru lock nests inside the IRQ-safe i_pages lock */ 6b51e88199ca4f Sebastian Andrzej Siewior 2018-08-17 @590 return list_lru_shrink_walk_irq(&shadow_nodes, sc, shadow_lru_isolate, 6b51e88199ca4f Sebastian Andrzej Siewior 2018-08-17 591 NULL); 449dd6984d0e47 Johannes Weiner 2014-04-03 592 } 449dd6984d0e47 Johannes Weiner 2014-04-03 593 449dd6984d0e47 Johannes Weiner 2014-04-03 594 static struct shrinker workingset_shadow_shrinker = { 449dd6984d0e47 Johannes Weiner 2014-04-03 595 .count_objects = count_shadow_nodes, 449dd6984d0e47 Johannes Weiner 2014-04-03 596 .scan_objects = scan_shadow_nodes, 4b85afbdacd290 Johannes Weiner 2018-10-26 597 .seeks = 0, /* ->count reports only fully expendable nodes */ 0a6b76dd23fa08 Vladimir Davydov 2016-03-17 598 .flags = SHRINKER_NUMA_AWARE | SHRINKER_MEMCG_AWARE, 449dd6984d0e47 Johannes Weiner 2014-04-03 599 }; 449dd6984d0e47 Johannes Weiner 2014-04-03 600 449dd6984d0e47 Johannes Weiner 2014-04-03 601 /* 449dd6984d0e47 Johannes Weiner 2014-04-03 602 * Our list_lru->lock is IRQ-safe as it nests inside the IRQ-safe b93b016313b3ba Matthew Wilcox 2018-04-10 603 * i_pages lock. 449dd6984d0e47 Johannes Weiner 2014-04-03 604 */ 449dd6984d0e47 Johannes Weiner 2014-04-03 605 static struct lock_class_key shadow_nodes_key; 449dd6984d0e47 Johannes Weiner 2014-04-03 606 449dd6984d0e47 Johannes Weiner 2014-04-03 607 static int __init workingset_init(void) 449dd6984d0e47 Johannes Weiner 2014-04-03 608 { 612e44939c3c77 Johannes Weiner 2016-03-15 609 unsigned int timestamp_bits; 612e44939c3c77 Johannes Weiner 2016-03-15 610 unsigned int max_order; 449dd6984d0e47 Johannes Weiner 2014-04-03 611 int ret; 449dd6984d0e47 Johannes Weiner 2014-04-03 612 612e44939c3c77 Johannes Weiner 2016-03-15 613 BUILD_BUG_ON(BITS_PER_LONG < EVICTION_SHIFT); 612e44939c3c77 Johannes Weiner 2016-03-15 614 /* 612e44939c3c77 Johannes Weiner 2016-03-15 615 * Calculate the eviction bucket size to cover the longest 612e44939c3c77 Johannes Weiner 2016-03-15 616 * actionable refault distance, which is currently half of 612e44939c3c77 Johannes Weiner 2016-03-15 617 * memory (totalram_pages/2). However, memory hotplug may add 612e44939c3c77 Johannes Weiner 2016-03-15 618 * some more pages at runtime, so keep working with up to 612e44939c3c77 Johannes Weiner 2016-03-15 619 * double the initial memory by using totalram_pages as-is. 612e44939c3c77 Johannes Weiner 2016-03-15 620 */ 612e44939c3c77 Johannes Weiner 2016-03-15 621 timestamp_bits = BITS_PER_LONG - EVICTION_SHIFT; ca79b0c211af63 Arun KS 2018-12-28 622 max_order = fls_long(totalram_pages() - 1); 612e44939c3c77 Johannes Weiner 2016-03-15 623 if (max_order > timestamp_bits) 612e44939c3c77 Johannes Weiner 2016-03-15 624 bucket_order = max_order - timestamp_bits; d3d36c4b5c5fbd Anton Blanchard 2016-07-14 625 pr_info("workingset: timestamp_bits=%d max_order=%d bucket_order=%u\n", 612e44939c3c77 Johannes Weiner 2016-03-15 626 timestamp_bits, max_order, bucket_order); 612e44939c3c77 Johannes Weiner 2016-03-15 627 39887653aab4cf Kirill Tkhai 2018-08-17 628 ret = prealloc_shrinker(&workingset_shadow_shrinker); 449dd6984d0e47 Johannes Weiner 2014-04-03 629 if (ret) 449dd6984d0e47 Johannes Weiner 2014-04-03 630 goto err; c92e8e10cafeaa Kirill Tkhai 2018-08-17 @631 ret = __list_lru_init(&shadow_nodes, true, &shadow_nodes_key, :::::: The code at line 590 was first introduced by commit :::::: 6b51e88199ca4f75ff647eff28efd30bfcb08dc4 mm/list_lru: introduce list_lru_shrink_walk_irq() :::::: TO: Sebastian Andrzej Siewior <bigeasy(a)linutronix.de&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org