* [linux-next:master 3438/12130] fs/bcachefs/extents.h:603:17: warning: writing 8 bytes into a region of size 0
@ 2023-10-13 19:30 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2023-10-13 19:30 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: e3b18f7200f45d66f7141136c25554ac1e82009b
commit: 8e5a01b126198f3325cbb48efd8dd028beca0672 [3438/12130] bcachefs: Better inlining in core write path
config: powerpc64-randconfig-001-20231014 (https://download.01.org/0day-ci/archive/20231014/202310140301.H2JW530r-lkp@intel.com/config)
compiler: powerpc64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231014/202310140301.H2JW530r-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/202310140301.H2JW530r-lkp@intel.com/
All warnings (new ones prefixed by >>):
| ^~~~
fs/bcachefs/bcachefs_format.h:812:1: note: in expansion of macro 'LE32_BITMASK'
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:812:14: warning: 'INODE_NEW_VARINT_OFFSET' defined but not used [-Wunused-const-variable=]
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~~~~~
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:812:1: note: in expansion of macro 'LE32_BITMASK'
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_MAX' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_BITS' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_OFFSET' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_MAX' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_BITS' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_OFFSET' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_MAX' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_BITS' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_OFFSET' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
In file included from fs/bcachefs/buckets.h:12,
from fs/bcachefs/alloc_background.h:7,
from fs/bcachefs/io.c:10:
In function 'bch2_bkey_append_ptr',
inlined from 'bch2_alloc_sectors_append_ptrs_inlined' at fs/bcachefs/alloc_foreground.h:194:3,
inlined from 'init_append_extent' at fs/bcachefs/io.c:835:2:
>> fs/bcachefs/extents.h:603:17: warning: writing 8 bytes into a region of size 0 [-Wstringop-overflow=]
603 | memcpy((void *) &k->v + bkey_val_bytes(&k->k),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
604 | &ptr,
| ~~~~~
605 | sizeof(ptr));
| ~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h: In function 'init_append_extent':
fs/bcachefs/bcachefs_format.h:304:33: note: destination object 'v' of size 0
304 | struct bch_val v;
| ^
fs/bcachefs/io.c: In function 'bch2_write_data_inline':
fs/bcachefs/io.c:1368:40: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
1368 | id->v.data[data_len++] = '\0';
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~
fs/bcachefs/bcachefs_format.h:1029:33: note: at offset [1, 4294967295] into destination object 'data' of size 0
1029 | u8 data[0];
| ^~~~
--
| ^~~~
fs/bcachefs/bcachefs_format.h:812:1: note: in expansion of macro 'LE32_BITMASK'
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:812:14: warning: 'INODE_NEW_VARINT_OFFSET' defined but not used [-Wunused-const-variable=]
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~~~~~
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:812:1: note: in expansion of macro 'LE32_BITMASK'
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_MAX' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_BITS' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_OFFSET' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_MAX' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_BITS' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_OFFSET' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_MAX' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_BITS' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_OFFSET' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
In file included from fs/bcachefs/buckets.h:12,
from fs/bcachefs/alloc_background.h:7,
from fs/bcachefs/alloc_foreground.c:15:
In function 'bch2_bkey_append_ptr',
inlined from 'bch2_alloc_sectors_append_ptrs_inlined' at fs/bcachefs/alloc_foreground.h:194:3,
inlined from 'bch2_alloc_sectors_append_ptrs' at fs/bcachefs/alloc_foreground.c:1251:2:
>> fs/bcachefs/extents.h:603:17: warning: writing 8 bytes into a region of size 0 [-Wstringop-overflow=]
603 | memcpy((void *) &k->v + bkey_val_bytes(&k->k),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
604 | &ptr,
| ~~~~~
605 | sizeof(ptr));
| ~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h: In function 'bch2_alloc_sectors_append_ptrs':
fs/bcachefs/bcachefs_format.h:304:33: note: destination object 'v' of size 0
304 | struct bch_val v;
| ^
--
102 | static const unsigned name##_BITS = (end - offset); \
| ^~~~
fs/bcachefs/bcachefs_format.h:812:1: note: in expansion of macro 'LE32_BITMASK'
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:812:14: warning: 'INODE_NEW_VARINT_OFFSET' defined but not used [-Wunused-const-variable=]
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~~~~~
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:812:1: note: in expansion of macro 'LE32_BITMASK'
812 | LE32_BITMASK(INODE_NEW_VARINT, struct bch_inode, bi_flags, 31, 32);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_MAX' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_BITS' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:811:14: warning: 'INODE_NR_FIELDS_OFFSET' defined but not used [-Wunused-const-variable=]
811 | 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:811:1: note: in expansion of macro 'LE32_BITMASK'
811 | LE32_BITMASK(INODE_NR_FIELDS, struct bch_inode, bi_flags, 24, 31);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_MAX' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_BITS' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:810:14: warning: 'INODE_STR_HASH_OFFSET' defined but not used [-Wunused-const-variable=]
810 | 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:810:1: note: in expansion of macro 'LE32_BITMASK'
810 | LE32_BITMASK(INODE_STR_HASH, struct bch_inode, bi_flags, 20, 24);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_MAX' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_BITS' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h:662:14: warning: 'BTREE_PTR_RANGE_UPDATED_OFFSET' defined but not used [-Wunused-const-variable=]
662 | 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:662:1: note: in expansion of macro 'LE16_BITMASK'
662 | LE16_BITMASK(BTREE_PTR_RANGE_UPDATED, struct bch_btree_ptr_v2, flags, 0, 1);
| ^~~~~~~~~~~~
In file included from fs/bcachefs/buckets.h:12,
from fs/bcachefs/alloc_background.h:7,
from fs/bcachefs/journal_io.c:3:
In function 'bch2_bkey_append_ptr',
inlined from '__journal_write_alloc.part.0' at fs/bcachefs/journal_io.c:1347:3:
>> fs/bcachefs/extents.h:603:17: warning: writing 8 bytes into a region of size 0 [-Wstringop-overflow=]
603 | memcpy((void *) &k->v + bkey_val_bytes(&k->k),
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
604 | &ptr,
| ~~~~~
605 | sizeof(ptr));
| ~~~~~~~~~~~~
fs/bcachefs/bcachefs_format.h: In function '__journal_write_alloc.part.0':
fs/bcachefs/bcachefs_format.h:304:33: note: destination object 'v' of size 0
304 | struct bch_val v;
| ^
vim +603 fs/bcachefs/extents.h
590
591 static inline void bch2_bkey_append_ptr(struct bkey_i *k, struct bch_extent_ptr ptr)
592 {
593 EBUG_ON(bch2_bkey_has_device(bkey_i_to_s_c(k), ptr.dev));
594
595 switch (k->k.type) {
596 case KEY_TYPE_btree_ptr:
597 case KEY_TYPE_btree_ptr_v2:
598 case KEY_TYPE_extent:
599 EBUG_ON(bkey_val_u64s(&k->k) >= BKEY_EXTENT_VAL_U64s_MAX);
600
601 ptr.type = 1 << BCH_EXTENT_ENTRY_ptr;
602
> 603 memcpy((void *) &k->v + bkey_val_bytes(&k->k),
604 &ptr,
605 sizeof(ptr));
606 k->u64s++;
607 break;
608 default:
609 BUG();
610 }
611 }
612
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https://github.com/intel/lkp-tests/wiki
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