Squashfs: Replace zero-length array with flexible-array

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].

[1] https://en.wikipedia.org/wiki/Flexible_array_member
[2] https://github.com/KSPP/linux/issues/21

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>

diff --git a/fs/squashfs/squashfs_fs.h b/fs/squashfs/squashfs_fs.h
index 7187bd1..8d64edb 100644 (file)
--- a/fs/squashfs/squashfs_fs.h
+++ b/fs/squashfs/squashfs_fs.h
@@ -262,7 +262,7 @@ struct squashfs_dir_index {
        __le32                  index;
        __le32                  start_block;
        __le32                  size;
-       unsigned char           name[0];
+       unsigned char           name[];
 };
 
 struct squashfs_base_inode {
@@ -327,7 +327,7 @@ struct squashfs_symlink_inode {
        __le32                  inode_number;
        __le32                  nlink;
        __le32                  symlink_size;
-       char                    symlink[0];
+       char                    symlink[];
 };
 
 struct squashfs_reg_inode {
@@ -341,7 +341,7 @@ struct squashfs_reg_inode {
        __le32                  fragment;
        __le32                  offset;
        __le32                  file_size;
-       __le16                  block_list[0];
+       __le16                  block_list[];
 };
 
 struct squashfs_lreg_inode {
@@ -358,7 +358,7 @@ struct squashfs_lreg_inode {
        __le32                  fragment;
        __le32                  offset;
        __le32                  xattr;
-       __le16                  block_list[0];
+       __le16                  block_list[];
 };
 
 struct squashfs_dir_inode {
@@ -389,7 +389,7 @@ struct squashfs_ldir_inode {
        __le16                  i_count;
        __le16                  offset;
        __le32                  xattr;
-       struct squashfs_dir_index       index[0];
+       struct squashfs_dir_index       index[];
 };
 
 union squashfs_inode {
@@ -410,7 +410,7 @@ struct squashfs_dir_entry {
        __le16                  inode_number;
        __le16                  type;
        __le16                  size;
-       char                    name[0];
+       char                    name[];
 };
 
 struct squashfs_dir_header {
@@ -428,12 +428,12 @@ struct squashfs_fragment_entry {
 struct squashfs_xattr_entry {
        __le16                  type;
        __le16                  size;
-       char                    data[0];
+       char                    data[];
 };
 
 struct squashfs_xattr_val {
        __le32                  vsize;
-       char                    value[0];
+       char                    value[];
 };
 
 struct squashfs_xattr_id {