floppy: cleanups: use memcpy() to copy reply_buffer

Use memcpy() in raw_cmd_done() to copy reply_buffer instead
of a for loop.

Signed-off-by: Denis Efremov <efremov@linux.com>
Link: https://lore.kernel.org/r/20210416083449.72700-5-efremov@linux.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

drivers/block/floppy.c

@@ -2988,17 +2988,14 @@ static const char *drive_name(int type, int drive)
 /* raw commands */
 static void raw_cmd_done(int flag)
 {
-	int i;
-
 	if (!flag) {
 		raw_cmd->flags |= FD_RAW_FAILURE;
 		raw_cmd->flags |= FD_RAW_HARDFAILURE;
 	} else {
 		raw_cmd->reply_count = inr;
 		if (raw_cmd->reply_count > FD_RAW_REPLY_SIZE)
 			raw_cmd->reply_count = 0;
-		for (i = 0; i < raw_cmd->reply_count; i++)
-			raw_cmd->reply[i] = reply_buffer[i];
+		memcpy(raw_cmd->reply, reply_buffer, raw_cmd->reply_count);
 
 		if (raw_cmd->flags & (FD_RAW_READ | FD_RAW_WRITE)) {
 			unsigned long flags;