* [linux-next:master 3892/13299] fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]'
@ 2023-10-18 17:43 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-10-18 17:43 UTC (permalink / raw)
To: Kent Overstreet; +Cc: oe-kbuild-all, Linux Memory Management List
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 2dac75696c6da3c848daa118a729827541c89d33
commit: 68d1c81e582aac9ad93ff6c663a0b5af7c5777b2 [3892/13299] bcachefs: Split out snapshot.c
config: csky-allmodconfig (https://download.01.org/0day-ci/archive/20231019/202310190116.5JjceoZJ-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231019/202310190116.5JjceoZJ-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310190116.5JjceoZJ-lkp@intel.com/
All warnings (new ones prefixed by >>):
fs/bcachefs/bcachefs_format.h:868:14: warning: 'INODE_STR_HASH_OFFSET' defined but not used [-Wunused-const-variable=]
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:101:25: note: in definition of macro 'LE_BITMASK'
101 | static const unsigned name##_OFFSET = offset; \
| ^~~~
fs/bcachefs/bcachefs_format.h:868:1: note: in expansion of macro 'LE32_BITMASK'
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:678:14: warning: 'BTREE_PTR_RANGE_UPDATED_MAX' defined but not used [-Wunused-const-variable=]
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:103:25: note: in definition of macro 'LE_BITMASK'
103 | static const __u##_bits name##_MAX = (1ULL << (end - offset)) - 1; \
| ^~~~
fs/bcachefs/bcachefs_format.h:678:1: note: in expansion of macro 'LE16_BITMASK'
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:678:14: warning: 'BTREE_PTR_RANGE_UPDATED_BITS' defined but not used [-Wunused-const-variable=]
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:102:25: note: in definition of macro 'LE_BITMASK'
102 | static const unsigned name##_BITS = (end - offset); \
| ^~~~
fs/bcachefs/bcachefs_format.h:678:1: note: in expansion of macro 'LE16_BITMASK'
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:678:14: warning: 'BTREE_PTR_RANGE_UPDATED_OFFSET' defined but not used [-Wunused-const-variable=]
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:101:25: note: in definition of macro 'LE_BITMASK'
101 | static const unsigned name##_OFFSET = offset; \
| ^~~~
fs/bcachefs/bcachefs_format.h:678:1: note: in expansion of macro 'LE16_BITMASK'
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
In file included from fs/bcachefs/btree_trans_commit.c:9:
In function 'want_new_bset',
inlined from 'bch2_btree_node_prep_for_write' at fs/bcachefs/btree_trans_commit.c:77:6:
fs/bcachefs/btree_update_interior.h:274:50: warning: array subscript 0 is outside array bounds of 'struct bkey_packed[0]' [-Warray-bounds=]
274 | __bch_btree_u64s_remaining(c, b, &bne->keys.start[0]);
| ^~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h: In function 'bch2_btree_node_prep_for_write':
fs/bcachefs/bcachefs_format.h:2297:36: note: while referencing 'start'
2297 | struct bkey_packed start[0];
| ^~~~~
In file included from include/linux/build_bug.h:5,
from include/linux/container_of.h:5,
from include/linux/list.h:5,
from include/linux/backing-dev-defs.h:5,
from fs/bcachefs/bcachefs.h:186:
fs/bcachefs/btree_trans_commit.c: In function 'bch2_trans_commit_write_locked.isra':
fs/bcachefs/btree_trans_commit.c:703:35: warning: array subscript 0 is outside array bounds of 'struct bkey_i[0]' [-Warray-bounds=]
703 | bkey_copy(&entry->start[0], &wb->k);
include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
fs/bcachefs/util.h:28:33: note: in expansion of macro 'BUG_ON'
28 | #define EBUG_ON(cond) BUG_ON(cond)
| ^~~~~~
fs/bcachefs/bkey.h:101:9: note: in expansion of macro 'EBUG_ON'
101 | EBUG_ON((u64 *) (_dst) > (u64 *) (_src) && \
| ^~~~~~~
fs/bcachefs/btree_trans_commit.c:703:25: note: in expansion of macro 'bkey_copy'
703 | bkey_copy(&entry->start[0], &wb->k);
| ^~~~~~~~~
fs/bcachefs/bcachefs_format.h:1542:33: note: while referencing 'start'
1542 | struct bkey_i start[0];
| ^~~~~
fs/bcachefs/btree_trans_commit.c:687:33: warning: array subscript 0 is outside array bounds of 'struct bkey_i[0]' [-Warray-bounds=]
687 | bkey_reassemble(&entry->start[0],
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
688 | (struct bkey_s_c) { &i->old_k, i->old_v });
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:1542:33: note: while referencing 'start'
1542 | struct bkey_i start[0];
| ^~~~~
fs/bcachefs/btree_trans_commit.c:695:35: warning: array subscript 0 is outside array bounds of 'struct bkey_i[0]' [-Warray-bounds=]
695 | bkey_copy(&entry->start[0], i->k);
include/linux/compiler.h:77:45: note: in definition of macro 'unlikely'
77 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
fs/bcachefs/util.h:28:33: note: in expansion of macro 'BUG_ON'
28 | #define EBUG_ON(cond) BUG_ON(cond)
| ^~~~~~
fs/bcachefs/bkey.h:101:9: note: in expansion of macro 'EBUG_ON'
101 | EBUG_ON((u64 *) (_dst) > (u64 *) (_src) && \
| ^~~~~~~
fs/bcachefs/btree_trans_commit.c:695:25: note: in expansion of macro 'bkey_copy'
695 | bkey_copy(&entry->start[0], i->k);
| ^~~~~~~~~
fs/bcachefs/bcachefs_format.h:1542:33: note: while referencing 'start'
1542 | struct bkey_i start[0];
| ^~~~~
In file included from fs/bcachefs/btree_trans_commit.c:17:
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_is_internal_node' at fs/bcachefs/snapshot.h:142:6,
inlined from 'btree_insert_entry_checks' at fs/bcachefs/btree_trans_commit.c:268:2,
inlined from 'do_bch2_trans_commit.isra' at fs/bcachefs/btree_trans_commit.c:831:3:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
In file included from fs/bcachefs/bcachefs.h:419:
fs/bcachefs/subvolume_types.h: In function 'do_bch2_trans_commit.isra':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
--
fs/bcachefs/bcachefs_format.h:870:1: note: in expansion of macro 'LE32_BITMASK'
870 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:869:14: warning: 'INODE_NR_FIELDS_MAX' defined but not used [-Wunused-const-variable=]
869 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:103:25: note: in definition of macro 'LE_BITMASK'
103 | static const __u##_bits name##_MAX = (1ULL << (end - offset)) - 1; \
| ^~~~
fs/bcachefs/bcachefs_format.h:869:1: note: in expansion of macro 'LE32_BITMASK'
869 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:869:14: warning: 'INODE_NR_FIELDS_BITS' defined but not used [-Wunused-const-variable=]
869 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:102:25: note: in definition of macro 'LE_BITMASK'
102 | static const unsigned name##_BITS = (end - offset); \
| ^~~~
fs/bcachefs/bcachefs_format.h:869:1: note: in expansion of macro 'LE32_BITMASK'
869 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:869:14: warning: 'INODE_NR_FIELDS_OFFSET' defined but not used [-Wunused-const-variable=]
869 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:101:25: note: in definition of macro 'LE_BITMASK'
101 | static const unsigned name##_OFFSET = offset; \
| ^~~~
fs/bcachefs/bcachefs_format.h:869:1: note: in expansion of macro 'LE32_BITMASK'
869 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:868:14: warning: 'INODE_STR_HASH_MAX' defined but not used [-Wunused-const-variable=]
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:103:25: note: in definition of macro 'LE_BITMASK'
103 | static const __u##_bits name##_MAX = (1ULL << (end - offset)) - 1; \
| ^~~~
fs/bcachefs/bcachefs_format.h:868:1: note: in expansion of macro 'LE32_BITMASK'
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:868:14: warning: 'INODE_STR_HASH_BITS' defined but not used [-Wunused-const-variable=]
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:102:25: note: in definition of macro 'LE_BITMASK'
102 | static const unsigned name##_BITS = (end - offset); \
| ^~~~
fs/bcachefs/bcachefs_format.h:868:1: note: in expansion of macro 'LE32_BITMASK'
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:868:14: warning: 'INODE_STR_HASH_OFFSET' defined but not used [-Wunused-const-variable=]
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:101:25: note: in definition of macro 'LE_BITMASK'
101 | static const unsigned name##_OFFSET = offset; \
| ^~~~
fs/bcachefs/bcachefs_format.h:868:1: note: in expansion of macro 'LE32_BITMASK'
868 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:678:14: warning: 'BTREE_PTR_RANGE_UPDATED_MAX' defined but not used [-Wunused-const-variable=]
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:103:25: note: in definition of macro 'LE_BITMASK'
103 | static const __u##_bits name##_MAX = (1ULL << (end - offset)) - 1; \
| ^~~~
fs/bcachefs/bcachefs_format.h:678:1: note: in expansion of macro 'LE16_BITMASK'
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:678:14: warning: 'BTREE_PTR_RANGE_UPDATED_BITS' defined but not used [-Wunused-const-variable=]
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:102:25: note: in definition of macro 'LE_BITMASK'
102 | static const unsigned name##_BITS = (end - offset); \
| ^~~~
fs/bcachefs/bcachefs_format.h:678:1: note: in expansion of macro 'LE16_BITMASK'
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:678:14: warning: 'BTREE_PTR_RANGE_UPDATED_OFFSET' defined but not used [-Wunused-const-variable=]
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:101:25: note: in definition of macro 'LE_BITMASK'
101 | static const unsigned name##_OFFSET = offset; \
| ^~~~
fs/bcachefs/bcachefs_format.h:678:1: note: in expansion of macro 'LE16_BITMASK'
678 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
In file included from fs/bcachefs/btree_update.c:14:
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9:
fs/bcachefs/snapshot.h:36:16: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ^~~~~~~~~~~~~~~~~~~
In file included from fs/bcachefs/bcachefs.h:419:
fs/bcachefs/subvolume_types.h: In function 'snapshot_t':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from '__bch2_snapshot_parent' at fs/bcachefs/snapshot.h:70:15,
inlined from 'bch2_snapshot_parent' at fs/bcachefs/snapshot.h:87:7,
inlined from 'need_whiteout_for_snapshot' at fs/bcachefs/btree_update.c:140:7:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'need_whiteout_for_snapshot':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from '__bch2_snapshot_parent' at fs/bcachefs/snapshot.h:73:6,
inlined from 'bch2_snapshot_parent' at fs/bcachefs/snapshot.h:87:7,
inlined from 'need_whiteout_for_snapshot' at fs/bcachefs/btree_update.c:140:7:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'need_whiteout_for_snapshot':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from '__bch2_snapshot_parent' at fs/bcachefs/snapshot.h:73:34,
inlined from 'bch2_snapshot_parent' at fs/bcachefs/snapshot.h:87:7,
inlined from 'need_whiteout_for_snapshot' at fs/bcachefs/btree_update.c:140:7:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'need_whiteout_for_snapshot':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_is_internal_node' at fs/bcachefs/snapshot.h:142:6,
inlined from 'bch2_snapshot_is_leaf' at fs/bcachefs/snapshot.h:151:10,
inlined from 'check_pos_snapshot_overwritten' at fs/bcachefs/btree_update.c:70:6,
inlined from 'extent_back_merge' at fs/bcachefs/btree_update.c:117:10:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'extent_back_merge':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_is_internal_node' at fs/bcachefs/snapshot.h:142:6,
inlined from 'bch2_snapshot_is_leaf' at fs/bcachefs/snapshot.h:151:10,
inlined from 'check_pos_snapshot_overwritten' at fs/bcachefs/btree_update.c:70:6,
inlined from 'extent_back_merge' at fs/bcachefs/btree_update.c:118:3:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'extent_back_merge':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_is_internal_node' at fs/bcachefs/snapshot.h:142:6,
inlined from 'bch2_snapshot_is_leaf' at fs/bcachefs/snapshot.h:151:10,
inlined from 'check_pos_snapshot_overwritten' at fs/bcachefs/btree_update.c:70:6,
inlined from 'extent_front_merge' at fs/bcachefs/btree_update.c:94:10:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'extent_front_merge':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_is_internal_node' at fs/bcachefs/snapshot.h:142:6,
inlined from 'bch2_snapshot_is_leaf' at fs/bcachefs/snapshot.h:151:10,
inlined from 'check_pos_snapshot_overwritten' at fs/bcachefs/btree_update.c:70:6,
inlined from 'extent_front_merge' at fs/bcachefs/btree_update.c:95:3:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function 'extent_front_merge':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_has_children' at fs/bcachefs/snapshot.h:196:6,
inlined from '__bch2_insert_snapshot_whiteouts' at fs/bcachefs/btree_update.c:174:7:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function '__bch2_insert_snapshot_whiteouts':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
In function '__snapshot_t',
inlined from 'snapshot_t' at fs/bcachefs/snapshot.h:41:9,
inlined from 'bch2_snapshot_has_children' at fs/bcachefs/snapshot.h:196:6,
inlined from '__bch2_insert_snapshot_whiteouts' at fs/bcachefs/btree_update.c:174:7:
>> fs/bcachefs/snapshot.h:36:21: warning: array subscript <unknown> is outside array bounds of 'struct snapshot_t[0]' [-Warray-bounds=]
36 | return &t->s[U32_MAX - id];
| ~~~~^~~~~~~~~~~~~~
fs/bcachefs/subvolume_types.h: In function '__bch2_insert_snapshot_whiteouts':
fs/bcachefs/subvolume_types.h:23:33: note: while referencing 's'
23 | struct snapshot_t s[0];
| ^
..
vim +36 fs/bcachefs/snapshot.h
33
34 static inline struct snapshot_t *__snapshot_t(struct snapshot_table *t, u32 id)
35 {
> 36 return &t->s[U32_MAX - id];
37 }
38
39 static inline const struct snapshot_t *snapshot_t(struct bch_fs *c, u32 id)
40 {
> 41 return __snapshot_t(rcu_dereference(c->snapshots), id);
42 }
43
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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