Re: [PATCH 23/29] smb: move cifs_xattr_handlers to .rodata

[Steve French]

Reviewed-by: Steve French <stfrench@xxxxxxxxxxxxx>

On Sat, Sep 30, 2023 at 6:27 AM Wedson Almeida Filho <wedsonaf@xxxxxxxxx> wrote:
>
> From: Wedson Almeida Filho <walmeida@xxxxxxxxxxxxx>
>
> This makes it harder for accidental or malicious changes to
> cifs_xattr_handlers at runtime.
>
> Cc: Steve French <sfrench@xxxxxxxxx>
> Cc: Paulo Alcantara <pc@xxxxxxxxxxxxx>
> Cc: Ronnie Sahlberg <lsahlber@xxxxxxxxxx>
> Cc: Shyam Prasad N <sprasad@xxxxxxxxxxxxx>
> Cc: Tom Talpey <tom@xxxxxxxxxx>
> Cc: linux-cifs@xxxxxxxxxxxxxxx
> Signed-off-by: Wedson Almeida Filho <walmeida@xxxxxxxxxxxxx>
> ---
>  fs/smb/client/cifsfs.h | 2 +-
>  fs/smb/client/xattr.c  | 2 +-
>  2 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/fs/smb/client/cifsfs.h b/fs/smb/client/cifsfs.h
> index 15c8cc4b6680..a0472b539567 100644
> --- a/fs/smb/client/cifsfs.h
> +++ b/fs/smb/client/cifsfs.h
> @@ -134,7 +134,7 @@ extern int cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
>                         struct dentry *direntry, const char *symname);
>
>  #ifdef CONFIG_CIFS_XATTR
> -extern const struct xattr_handler *cifs_xattr_handlers[];
> +extern const struct xattr_handler * const cifs_xattr_handlers[];
>  extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
>  #else
>  # define cifs_xattr_handlers NULL
> diff --git a/fs/smb/client/xattr.c b/fs/smb/client/xattr.c
> index 4ad5531686d8..ac199160bce6 100644
> --- a/fs/smb/client/xattr.c
> +++ b/fs/smb/client/xattr.c
> @@ -478,7 +478,7 @@ static const struct xattr_handler smb3_ntsd_full_xattr_handler = {
>         .set = cifs_xattr_set,
>  };
>
> -const struct xattr_handler *cifs_xattr_handlers[] = {
> +const struct xattr_handler * const cifs_xattr_handlers[] = {
>         &cifs_user_xattr_handler,
>         &cifs_os2_xattr_handler,
>         &cifs_cifs_acl_xattr_handler,
> --
> 2.34.1
>


-- 
Thanks,

Steve