Fix compilation warning.

src/mesa/drivers/dri/r300/r300_emit.h

@@ -135,9 +135,10 @@ static __inline__ uint32_t cmdpacify(void)
 	do {								\
 		int _n;							\
 		_n=(num_extra);						\
-		cmd = r300AllocCmdBuf(rmesa,				\
-				      (_n+2),				\
-				      __FUNCTION__);			\
+		cmd = (drm_radeon_cmd_header_t*)			\
+			r300AllocCmdBuf(rmesa,				\
+					(_n+2),				\
+					__func__);			\
 		cmd_reserved=_n+2;					\
 		cmd_written=1;						\
 		cmd[0].i=cmdpacket0((reg), _n+1);			\
@@ -169,9 +170,10 @@ static __inline__ uint32_t cmdpacify(void)
 	do {								\
 		int _n;							\
 		_n = (length);						\
-		cmd = r300AllocCmdBuf(rmesa,				\
-				      (_n+1),				\
-				      __FUNCTION__);			\
+		cmd = (drm_radeon_cmd_header_t*)			\
+			r300AllocCmdBuf(rmesa,				\
+					(_n+1),				\
+					__func__);			\
 		cmd_reserved = _n+2;					\
 		cmd_written =1;						\
 		cmd[0].i = cmdvpu((dest), _n/4);			\
@@ -183,9 +185,10 @@ static __inline__ uint32_t cmdpacify(void)
 		GLuint _p;						\
 		_n = (count);						\
 		_p = (packet);						\
-		cmd = r300AllocCmdBuf(rmesa,				\
-				      (_n+3),				\
-				      __FUNCTION__);			\
+		cmd = (drm_radeon_cmd_header_t*)			\
+			r300AllocCmdBuf(rmesa,				\
+					(_n+3),				\
+					__func__);			\
 		cmd_reserved = _n+3;					\
 		cmd_written = 2;					\
 		if(_n > 0x3fff) {					\