Index: sys/arch/riscv/include/int_fmtio.h
===================================================================
RCS file: /cvsroot/src/sys/arch/riscv/include/int_fmtio.h,v
retrieving revision 1.3
diff -p -u -r1.3 int_fmtio.h
--- sys/arch/riscv/include/int_fmtio.h	16 Apr 2019 07:08:52 -0000	1.3
+++ sys/arch/riscv/include/int_fmtio.h	17 Apr 2019 09:40:22 -0000
@@ -170,8 +170,8 @@
 #else
 #define	PRIxLEAST64	"llx"	/* uint_least64_t	*/
 #endif
-#define	PRIxFAST8	"x"	/* uint_fast8_t		*/
-#define	PRIxFAST16	"x"	/* uint_fast16_t	*/
+#define	PRIxFAST8	"hhx"	/* uint_fast8_t		*/
+#define	PRIxFAST16	"hx"	/* uint_fast16_t	*/
 #define	PRIxFAST32	"x"	/* uint_fast32_t	*/
 #ifdef _LP64
 #define	PRIxFAST64	"lx"	/* uint_fast64_t	*/
@@ -198,8 +198,8 @@
 #else
 #define	PRIXLEAST64	"llX"	/* uint_least64_t	*/
 #endif
-#define	PRIXFAST8	"X"	/* uint_fast8_t		*/
-#define	PRIXFAST16	"X"	/* uint_fast16_t	*/
+#define	PRIXFAST8	"hhX"	/* uint_fast8_t		*/
+#define	PRIXFAST16	"hX"	/* uint_fast16_t	*/
 #define	PRIXFAST32	"X"	/* uint_fast32_t	*/
 #ifdef _LP64
 #define	PRIXFAST64	"lX"	/* uint_fast64_t	*/
@@ -228,8 +228,8 @@
 #else
 #define	SCNdLEAST64	"lld"	/* int_least64_t	*/
 #endif
-#define	SCNdFAST8	"d"	/* int_fast8_t		*/
-#define	SCNdFAST16	"d"	/* int_fast16_t		*/
+#define	SCNdFAST8	"hhd"	/* int_fast8_t		*/
+#define	SCNdFAST16	"hd"	/* int_fast16_t		*/
 #define	SCNdFAST32	"d"	/* int_fast32_t		*/
 #ifdef _LP64
 #define	SCNdFAST64	"ld"	/* int_fast64_t		*/
@@ -256,8 +256,8 @@
 #else
 #define	SCNiLEAST64	"lli"	/* int_least64_t	*/
 #endif
-#define	SCNiFAST8	"i"	/* int_fast8_t		*/
-#define	SCNiFAST16	"i"	/* int_fast16_t		*/
+#define	SCNiFAST8	"hhi"	/* int_fast8_t		*/
+#define	SCNiFAST16	"hi"	/* int_fast16_t		*/
 #define	SCNiFAST32	"i"	/* int_fast32_t		*/
 #ifdef _LP64
 #define	SCNiFAST64	"li"	/* int_fast64_t		*/
@@ -286,8 +286,8 @@
 #else
 #define	SCNoLEAST64	"llo"	/* uint_least64_t	*/
 #endif
-#define	SCNoFAST8	"o"	/* uint_fast8_t		*/
-#define	SCNoFAST16	"o"	/* uint_fast16_t	*/
+#define	SCNoFAST8	"hho"	/* uint_fast8_t		*/
+#define	SCNoFAST16	"ho"	/* uint_fast16_t	*/
 #define	SCNoFAST32	"o"	/* uint_fast32_t	*/
 #ifdef _LP64
 #define	SCNoFAST64	"lo"	/* uint_fast64_t	*/
@@ -314,8 +314,8 @@
 #else
 #define	SCNuLEAST64	"llu"	/* uint_least64_t	*/
 #endif
-#define	SCNuFAST8	"u"	/* uint_fast8_t		*/
-#define	SCNuFAST16	"u"	/* uint_fast16_t	*/
+#define	SCNuFAST8	"hhu"	/* uint_fast8_t		*/
+#define	SCNuFAST16	"hu"	/* uint_fast16_t	*/
 #define	SCNuFAST32	"u"	/* uint_fast32_t	*/
 #ifdef _LP64
 #define	SCNuFAST64	"lu"	/* uint_fast64_t	*/
@@ -342,8 +342,8 @@
 #else
 #define	SCNxLEAST64	"llx"	/* uint_least64_t	*/
 #endif
-#define	SCNxFAST8	"x"	/* uint_fast8_t		*/
-#define	SCNxFAST16	"x"	/* uint_fast16_t	*/
+#define	SCNxFAST8	"hhx"	/* uint_fast8_t		*/
+#define	SCNxFAST16	"hx"	/* uint_fast16_t	*/
 #define	SCNxFAST32	"x"	/* uint_fast32_t	*/
 #ifdef _LP64
 #define	SCNxFAST64	"lx"	/* uint_fast64_t	*/