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-rw-r--r--fs/udf/udfdecl.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/udf/udfdecl.h b/fs/udf/udfdecl.h
index f5e0fe78979e..68e8a64d22e0 100644
--- a/fs/udf/udfdecl.h
+++ b/fs/udf/udfdecl.h
@@ -48,6 +48,8 @@ extern __printf(3, 4) void _udf_warn(struct super_block *sb,
#define UDF_EXTENT_LENGTH_MASK 0x3FFFFFFF
#define UDF_EXTENT_FLAG_MASK 0xC0000000
+#define UDF_INVALID_ID ((uint32_t)-1)
+
#define UDF_NAME_PAD 4
#define UDF_NAME_LEN 254
#define UDF_NAME_LEN_CS0 255
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