diff --git a/include/linux/mpi.h b/include/linux/mpi.h
index 8b8269fa89077e63ae8cd4867a3edd57d96a6ac2..3a5abe95affd381564b1b08b1996dd4e0ee52490 100644
--- a/include/linux/mpi.h
+++ b/include/linux/mpi.h
@@ -33,12 +33,6 @@
 #include <linux/types.h>
 #include <linux/scatterlist.h>
 
-/* DSI defines */
-
-#define SHA1_DIGEST_LENGTH   20
-
-/*end of DSI defines */
-
 #define BYTES_PER_MPI_LIMB	(BITS_PER_LONG / 8)
 #define BITS_PER_MPI_LIMB	BITS_PER_LONG