Using latest HEAD from linux git (commit
5a6a09e97199d6600d31383055f9d43fbbcbe86f (HEAD -> master,
origin/master, origin/HEAD), and the following config, I get this
failure when compiling on x86_64 Debian Bullseye (11):
CC fs/bcachefs/btree_io.o
In file included from fs/bcachefs/btree_io.c:11:
fs/bcachefs/btree_io.c: In function ‘bch2_btree_post_write_cleanup’:
fs/bcachefs/btree_update_interior.h:274:36: error: array subscript 0 is outside the bounds of an interior zero-length array ‘struct bkey_packed[0]’ [-Werror=zero-length-bounds]
274 | __bch_btree_u64s_remaining(c, b, &bne->keys.start[0]);
| ^~~~~~~~~~~~~~~~~~~
In file included from fs/bcachefs/bcachefs.h:206,
from fs/bcachefs/btree_io.c:3:
fs/bcachefs/bcachefs_format.h:2344:21: note: while referencing ‘start’
2344 | struct bkey_packed start[0];
| ^~~~~
In file included from fs/bcachefs/btree_io.c:11:
fs/bcachefs/btree_io.c: In function ‘bch2_btree_init_next’:
fs/bcachefs/btree_update_interior.h:274:36: error: array subscript 0 is outside the bounds of an interior zero-length array ‘struct bkey_packed[0]’ [-Werror=zero-length-bounds]
274 | __bch_btree_u64s_remaining(c, b, &bne->keys.start[0]);
| ^~~~~~~~~~~~~~~~~~~
In file included from fs/bcachefs/bcachefs.h:206,
from fs/bcachefs/btree_io.c:3:
fs/bcachefs/bcachefs_format.h:2344:21: note: while referencing ‘start’
2344 | struct bkey_packed start[0];
| ^~~~~
cc1: all warnings being treated as errors
make[4]: *** [scripts/Makefile.build:243: fs/bcachefs/btree_io.o] Error 1
make[3]: *** [scripts/Makefile.build:480: fs/bcachefs] Error 2
make[2]: *** [scripts/Makefile.build:480: fs] Error 2
make[1]: *** [/local/src/kernel/git/linux/Makefile:1913: .] Error 2
make: *** [Makefile:234: __sub-make] Error 2
My .config looks like this for BCACHEFS:
$ grep BCACHEFS .config
CONFIG_BCACHEFS_FS=y
CONFIG_BCACHEFS_QUOTA=y
CONFIG_BCACHEFS_POSIX_ACL=y
CONFIG_BCACHEFS_DEBUG_TRANSACTIONS=y
CONFIG_BCACHEFS_DEBUG=y
CONFIG_BCACHEFS_TESTS=y
# CONFIG_BCACHEFS_LOCK_TIME_STATS is not set
# CONFIG_BCACHEFS_NO_LATENCY_ACCT is not set
