staging: erofs: surround fault_injection ralted option parsing using CONFIG_EROFS_FAU...

It's a little bit strange when fault_injection related
option fail with -EINVAL which was already disabled
from config, so surround all fault_injection related option
parsing code using CONFIG_EROFS_FAULT_INJECTION. Meanwhile,
slightly change warning message to keep consistency with
option POSIX_ACL and FS_XATTR.

Signed-off-by: Chengguang Xu <cgxu519@gmx.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/erofs/super.c b/drivers/staging/erofs/super.c
index 5654cc7..2109b03 100644 (file)
--- a/drivers/staging/erofs/super.c
+++ b/drivers/staging/erofs/super.c
@@ -237,16 +237,18 @@ static int parse_options(struct super_block *sb, char *options)
                        infoln("noacl options not supported");
                        break;
 #endif
+#ifdef CONFIG_EROFS_FAULT_INJECTION
                case Opt_fault_injection:
                        if (args->from && match_int(args, &arg))
                                return -EINVAL;
-#ifdef CONFIG_EROFS_FAULT_INJECTION
                        erofs_build_fault_attr(EROFS_SB(sb), arg);
                        set_opt(EROFS_SB(sb), FAULT_INJECTION);
+                       break;
 #else
-                       infoln("FAULT_INJECTION was not selected");
-#endif
+               case Opt_fault_injection:
+                       infoln("fault_injection options not supported");
                        break;
+#endif
                default:
                        errln("Unrecognized mount option \"%s\" "
                                        "or missing value", p);