[PATCH] s390: use __cpcmd in vmcp_write

vmcp_write uses GPF_DMA for the memory allocation of the response buffer, so
it can use the low level function __cpcmd directly, no need to call the
wrapper.
Signed-off-by: NMartin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: NAndrew Morton <akpm@osdl.org>
Signed-off-by: NLinus Torvalds <torvalds@osdl.org>

drivers/s390/char/vmcp.c

@@ -115,9 +115,9 @@ vmcp_write(struct file *file, const char __user * buff, size_t count,
 		return -ENOMEM;
 	}
 	debug_text_event(vmcp_debug, 1, cmd);
-	session->resp_size = cpcmd(cmd, session->response,
-				   session->bufsize,
-				   &session->resp_code);
+	session->resp_size = __cpcmd(cmd, session->response,
+				     session->bufsize,
+				     &session->resp_code);
 	up(&session->mutex);
 	kfree(cmd);
 	*ppos = 0;		/* reset the file pointer after a command */