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author | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-02-14 19:11:44 -0600 |
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committer | Gustavo A. R. Silva <gustavoars@kernel.org> | 2022-02-17 07:00:39 -0600 |
commit | 5224f79096170bf7b92cc8fe42a12f44b91e5f62 (patch) | |
tree | 4a1aa6767d05015793171bb77b07b042a830fc4c /fs/ext4/fast_commit.h | |
parent | 26291c54e111ff6ba87a164d85d4a4e134b7315c (diff) | |
download | linux-stable-5224f79096170bf7b92cc8fe42a12f44b91e5f62.tar.gz linux-stable-5224f79096170bf7b92cc8fe42a12f44b91e5f62.tar.bz2 linux-stable-5224f79096170bf7b92cc8fe42a12f44b91e5f62.zip |
treewide: Replace zero-length arrays with flexible-array members
There is a regular need in the kernel to provide a way to declare
having a dynamically sized set of trailing elements in a structure.
Kernel code should always use “flexible array members”[1] for these
cases. The older style of one-element or zero-length arrays should
no longer be used[2].
This code was transformed with the help of Coccinelle:
(next-20220214$ spatch --jobs $(getconf _NPROCESSORS_ONLN) --sp-file script.cocci --include-headers --dir . > output.patch)
@@
identifier S, member, array;
type T1, T2;
@@
struct S {
...
T1 member;
T2 array[
- 0
];
};
UAPI and wireless changes were intentionally excluded from this patch
and will be sent out separately.
[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://www.kernel.org/doc/html/v5.16/process/deprecated.html#zero-length-and-one-element-arrays
Link: https://github.com/KSPP/linux/issues/78
Reviewed-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Diffstat (limited to 'fs/ext4/fast_commit.h')
-rw-r--r-- | fs/ext4/fast_commit.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ext4/fast_commit.h b/fs/ext4/fast_commit.h index 083ad1cb705a..07e8b734c4fd 100644 --- a/fs/ext4/fast_commit.h +++ b/fs/ext4/fast_commit.h @@ -55,13 +55,13 @@ struct ext4_fc_del_range { struct ext4_fc_dentry_info { __le32 fc_parent_ino; __le32 fc_ino; - __u8 fc_dname[0]; + __u8 fc_dname[]; }; /* Value structure for EXT4_FC_TAG_INODE and EXT4_FC_TAG_INODE_PARTIAL. */ struct ext4_fc_inode { __le32 fc_ino; - __u8 fc_raw_inode[0]; + __u8 fc_raw_inode[]; }; /* Value structure for tag EXT4_FC_TAG_TAIL. */ |