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Subject[ammarfaizi2-block:dhowells/linux-fs/netfs-maple 19/44] lib/maple_tree.c:6539:6: warning: no previous prototype for 'mt_dump_range'
tree:   https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-maple
head: 931e50676c6598d0eda1954ead465519ff91874d
commit: 6c45be03ed6456efda93c06956d586eecae0e51a [19/44] Maple Tree: add new data structure
config: openrisc-allmodconfig (https://download.01.org/0day-ci/archive/20220423/202204231319.B8E2NSj2-lkp@intel.com/config)
compiler: or1k-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://github.com/ammarfaizi2/linux-block/commit/6c45be03ed6456efda93c06956d586eecae0e51a
git remote add ammarfaizi2-block https://github.com/ammarfaizi2/linux-block
git fetch --no-tags ammarfaizi2-block dhowells/linux-fs/netfs-maple
git checkout 6c45be03ed6456efda93c06956d586eecae0e51a
# save the config file
mkdir build_dir && cp config build_dir/.config
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross W=1 O=build_dir ARCH=openrisc SHELL=/bin/bash

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> lib/maple_tree.c:6539:6: warning: no previous prototype for 'mt_dump_range' [-Wmissing-prototypes]
6539 | void mt_dump_range(unsigned long min, unsigned long max, unsigned int depth)
| ^~~~~~~~~~~~~
>> lib/maple_tree.c:6549:6: warning: no previous prototype for 'mt_dump_entry' [-Wmissing-prototypes]
6549 | void mt_dump_entry(void *entry, unsigned long min, unsigned long max,
| ^~~~~~~~~~~~~
>> lib/maple_tree.c:6565:6: warning: no previous prototype for 'mt_dump_range64' [-Wmissing-prototypes]
6565 | void mt_dump_range64(const struct maple_tree *mt, void *entry,
| ^~~~~~~~~~~~~~~
>> lib/maple_tree.c:6604:6: warning: no previous prototype for 'mt_dump_arange64' [-Wmissing-prototypes]
6604 | void mt_dump_arange64(const struct maple_tree *mt, void *entry,
| ^~~~~~~~~~~~~~~~
>> lib/maple_tree.c:6696:6: warning: no previous prototype for 'mas_validate_gaps' [-Wmissing-prototypes]
6696 | void mas_validate_gaps(struct ma_state *mas)
| ^~~~~~~~~~~~~~~~~
>> lib/maple_tree.c:6781:6: warning: no previous prototype for 'mas_validate_parent_slot' [-Wmissing-prototypes]
6781 | void mas_validate_parent_slot(struct ma_state *mas)
| ^~~~~~~~~~~~~~~~~~~~~~~~
>> lib/maple_tree.c:6814:6: warning: no previous prototype for 'mas_validate_child_slot' [-Wmissing-prototypes]
6814 | void mas_validate_child_slot(struct ma_state *mas)
| ^~~~~~~~~~~~~~~~~~~~~~~
>> lib/maple_tree.c:6852:6: warning: no previous prototype for 'mas_validate_limits' [-Wmissing-prototypes]
6852 | void mas_validate_limits(struct ma_state *mas)
| ^~~~~~~~~~~~~~~~~~~
>> lib/maple_tree.c:6902:6: warning: no previous prototype for 'mt_validate_nulls' [-Wmissing-prototypes]
6902 | void mt_validate_nulls(struct maple_tree *mt)
| ^~~~~~~~~~~~~~~~~
>> lib/maple_tree.c:6943:6: warning: no previous prototype for 'mt_validate' [-Wmissing-prototypes]
6943 | void mt_validate(struct maple_tree *mt)
| ^~~~~~~~~~~


vim +/mt_dump_range +6539 lib/maple_tree.c

6535
6536 /* Tree validations */
6537 void mt_dump_node(const struct maple_tree *mt, void *entry, unsigned long min,
6538 unsigned long max, unsigned int depth);
> 6539 void mt_dump_range(unsigned long min, unsigned long max, unsigned int depth)
6540 {
6541 static const char spaces[] = " ";
6542
6543 if (min == max)
6544 pr_info("%.*s%lu: ", depth * 2, spaces, min);
6545 else
6546 pr_info("%.*s%lu-%lu: ", depth * 2, spaces, min, max);
6547 }
6548
> 6549 void mt_dump_entry(void *entry, unsigned long min, unsigned long max,
6550 unsigned int depth)
6551 {
6552 mt_dump_range(min, max, depth);
6553
6554 if (xa_is_value(entry))
6555 pr_cont("value %ld (0x%lx) ["MA_PTR"]\n", xa_to_value(entry),
6556 xa_to_value(entry), entry);
6557 else if (xa_is_zero(entry))
6558 pr_cont("zero (%ld)\n", xa_to_internal(entry));
6559 else if (mt_is_reserved(entry))
6560 pr_cont("UNKNOWN ENTRY ("MA_PTR")\n", entry);
6561 else
6562 pr_cont(""MA_PTR"\n", entry);
6563 }
6564
> 6565 void mt_dump_range64(const struct maple_tree *mt, void *entry,
6566 unsigned long min, unsigned long max, unsigned int depth)
6567 {
6568 struct maple_range_64 *node = &mte_to_node(entry)->mr64;
6569 bool leaf = mte_is_leaf(entry);
6570 unsigned long first = min;
6571 int i;
6572
6573 pr_cont(" contents: ");
6574 for (i = 0; i < MAPLE_RANGE64_SLOTS - 1; i++)
6575 pr_cont(""MA_PTR" %lu ", node->slot[i], node->pivot[i]);
6576 pr_cont(""MA_PTR"\n", node->slot[i]);
6577 for (i = 0; i < MAPLE_RANGE64_SLOTS; i++) {
6578 unsigned long last = max;
6579
6580 if (i < (MAPLE_RANGE64_SLOTS - 1))
6581 last = node->pivot[i];
6582 else if (!node->slot[i] && max != mt_max[mte_node_type(entry)])
6583 break;
6584 if (last == 0 && i > 0)
6585 break;
6586 if (leaf)
6587 mt_dump_entry(mt_slot(mt, node->slot, i),
6588 first, last, depth + 1);
6589 else if (node->slot[i])
6590 mt_dump_node(mt, mt_slot(mt, node->slot, i),
6591 first, last, depth + 1);
6592
6593 if (last == max)
6594 break;
6595 if (last > max) {
6596 pr_err("node "MA_PTR" last (%lu) > max (%lu) at pivot %d!\n",
6597 node, last, max, i);
6598 break;
6599 }
6600 first = last + 1;
6601 }
6602 }
6603
> 6604 void mt_dump_arange64(const struct maple_tree *mt, void *entry,
6605 unsigned long min, unsigned long max, unsigned int depth)
6606 {
6607 struct maple_arange_64 *node = &mte_to_node(entry)->ma64;
6608 bool leaf = mte_is_leaf(entry);
6609 unsigned long first = min;
6610 int i;
6611
6612 pr_cont(" contents: ");
6613 for (i = 0; i < MAPLE_ARANGE64_SLOTS; i++)
6614 pr_cont("%lu ", node->gap[i]);
6615 pr_cont("| %02X %02X| ", node->meta.end, node->meta.gap);
6616 for (i = 0; i < MAPLE_ARANGE64_SLOTS - 1; i++)
6617 pr_cont(MA_PTR" %lu ", node->slot[i], node->pivot[i]);
6618 pr_cont(MA_PTR"\n", node->slot[i]);
6619 for (i = 0; i < MAPLE_ARANGE64_SLOTS; i++) {
6620 unsigned long last = max;
6621
6622 if (i < (MAPLE_ARANGE64_SLOTS - 1))
6623 last = node->pivot[i];
6624 else if (!node->slot[i])
6625 break;
6626 if (last == 0 && i > 0)
6627 break;
6628 if (leaf)
6629 mt_dump_entry(mt_slot(mt, node->slot, i),
6630 first, last, depth + 1);
6631 else if (node->slot[i])
6632 mt_dump_node(mt, mt_slot(mt, node->slot, i),
6633 first, last, depth + 1);
6634
6635 if (last == max)
6636 break;
6637 if (last > max) {
6638 pr_err("node "MA_PTR" last (%lu) > max (%lu) at pivot %d!\n",
6639 node, last, max, i);
6640 break;
6641 }
6642 first = last + 1;
6643 }
6644 }
6645
6646 void mt_dump_node(const struct maple_tree *mt, void *entry, unsigned long min,
6647 unsigned long max, unsigned int depth)
6648 {
6649 struct maple_node *node = mte_to_node(entry);
6650 unsigned int type = mte_node_type(entry);
6651 unsigned int i;
6652
6653 mt_dump_range(min, max, depth);
6654
6655 pr_cont("node "MA_PTR" depth %d type %d parent "MA_PTR, node, depth, type,
6656 node ? node->parent : NULL);
6657 switch (type) {
6658 case maple_dense:
6659 pr_cont("\n");
6660 for (i = 0; i < MAPLE_NODE_SLOTS; i++) {
6661 if (min + i > max)
6662 pr_cont("OUT OF RANGE: ");
6663 mt_dump_entry(mt_slot(mt, node->slot, i),
6664 min + i, min + i, depth);
6665 }
6666 break;
6667 case maple_leaf_64:
6668 case maple_range_64:
6669 mt_dump_range64(mt, entry, min, max, depth);
6670 break;
6671 case maple_arange_64:
6672 mt_dump_arange64(mt, entry, min, max, depth);
6673 break;
6674
6675 default:
6676 pr_cont(" UNKNOWN TYPE\n");
6677 }
6678 }
6679
6680 void mt_dump(const struct maple_tree *mt)
6681 {
6682 void *entry = rcu_dereference_check(mt->ma_root, mt_locked(mt));
6683
6684 pr_info("maple_tree("MA_PTR") flags %X, height %u root "MA_PTR"\n",
6685 mt, mt->ma_flags, mt_height(mt), entry);
6686 if (!xa_is_node(entry))
6687 mt_dump_entry(entry, 0, 0, 0);
6688 else if (entry)
6689 mt_dump_node(mt, entry, 0, mt_max[mte_node_type(entry)], 0);
6690 }
6691
6692 /*
6693 * Calculate the maximum gap in a node and check if that's what is reported in
6694 * the parent (unless root).
6695 */
> 6696 void mas_validate_gaps(struct ma_state *mas)
6697 {
6698 struct maple_enode *mte = mas->node;
6699 struct maple_node *p_mn;
6700 unsigned long gap = 0, max_gap = 0;
6701 unsigned long p_end, p_start = mas->min;
6702 unsigned char p_slot;
6703 unsigned long *gaps = NULL;
6704 unsigned long *pivots = ma_pivots(mte_to_node(mte), mte_node_type(mte));
6705 int i;
6706
6707 if (ma_is_dense(mte_node_type(mte))) {
6708 for (i = 0; i < mt_slot_count(mte); i++) {
6709 if (mas_get_slot(mas, i)) {
6710 if (gap > max_gap)
6711 max_gap = gap;
6712 gap = 0;
6713 continue;
6714 }
6715 gap++;
6716 }
6717 goto counted;
6718 }
6719
6720 gaps = ma_gaps(mte_to_node(mte), mte_node_type(mte));
6721 for (i = 0; i < mt_slot_count(mte); i++) {
6722 p_end = mas_logical_pivot(mas, pivots, i, mte_node_type(mte));
6723
6724 if (!gaps) {
6725 if (mas_get_slot(mas, i)) {
6726 gap = 0;
6727 goto not_empty;
6728 }
6729
6730 gap += p_end - p_start + 1;
6731 } else {
6732 void *entry = mas_get_slot(mas, i);
6733
6734 gap = gaps[i];
6735 if (!entry) {
6736 if (gap != p_end - p_start + 1) {
6737 pr_err(MA_PTR"[%u] -> "MA_PTR" %lu != %lu - %lu + 1\n",
6738 mas_mn(mas), i,
6739 mas_get_slot(mas, i), gap,
6740 p_end, p_start);
6741 mt_dump(mas->tree);
6742
6743 MT_BUG_ON(mas->tree,
6744 gap != p_end - p_start + 1);
6745 }
6746 } else {
6747 if (gap > p_end - p_start + 1) {
6748 pr_err(MA_PTR"[%u] %lu >= %lu - %lu + 1 (%lu)\n",
6749 mas_mn(mas), i, gap, p_end, p_start,
6750 p_end - p_start + 1);
6751 MT_BUG_ON(mas->tree,
6752 gap > p_end - p_start + 1);
6753 }
6754 }
6755 }
6756
6757 if (gap > max_gap)
6758 max_gap = gap;
6759 not_empty:
6760 p_start = p_end + 1;
6761 if (p_end >= mas->max)
6762 break;
6763 }
6764
6765 counted:
6766 if (mte_is_root(mte))
6767 return;
6768
6769 p_slot = mte_parent_slot(mas->node);
6770 p_mn = mte_parent(mte);
6771 MT_BUG_ON(mas->tree, max_gap > mas->max);
6772 if (ma_gaps(p_mn, mas_parent_enum(mas, mte))[p_slot] != max_gap) {
6773 pr_err("gap "MA_PTR"[%u] != %lu\n", p_mn, p_slot, max_gap);
6774 mt_dump(mas->tree);
6775 }
6776
6777 MT_BUG_ON(mas->tree,
6778 ma_gaps(p_mn, mas_parent_enum(mas, mte))[p_slot] != max_gap);
6779 }
6780

--
0-DAY CI Kernel Test Service
https://01.org/lkp

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