diff --git a/include/opcode/ChangeLog b/include/opcode/ChangeLog
index f807cac88..d4fb38402 100644
--- a/include/opcode/ChangeLog
+++ b/include/opcode/ChangeLog
@@ -1,5 +1,8 @@
 2012-04-27  David S. Miller  <davem@davemloft.net>
 
+	* sparc.h: Document new arg code' )' for crypto RS3
+	immediates.
+
 	* sparc.h (struct sparc_opcode): New field 'hwcaps'.
 	F_MUL32, F_DIV32, F_FDMULD, F_V8PLUS, F_POPC, F_VIS, F_VIS2,
 	F_ASI_BLK_INIT, F_FMAF, F_VIS3, F_HPC, F_RANDOM, F_TRANS,
diff --git a/include/opcode/sparc.h b/include/opcode/sparc.h
index 5d4d3c9e8..b1c5e42ad 100644
--- a/include/opcode/sparc.h
+++ b/include/opcode/sparc.h
@@ -224,6 +224,7 @@ typedef struct sparc_opcode
 	_	Ancillary state register in rd (v9a)
 	/	Ancillary state register in rs1 (v9a)
 	(	entire floating point state register (%efsr)
+	)	5 bit immediate placed in RS3 field
 	=	2+8 bit PC relative immediate. (v9)  */
 
 #define OP2(x)		(((x) & 0x7) << 22)  /* Op2 field of format2 insns.  */