Use the magic of common symbols to allow struct dev to effectively grow at
[people/xl0/gpxe.git] / src / include / eisa.h
index 4fe14fc..ed0ccef 100644 (file)
@@ -27,6 +27,7 @@
  */
 struct dev;
 struct eisa_device {
+       char *magic; /* must be first */
        struct dev *dev;
        unsigned int slot;
        uint16_t ioaddr;