stackbuf          125 net/compat.c   			       unsigned char *stackbuf, int stackbuf_size)
stackbuf          137 net/compat.c   	kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
stackbuf          205 net/compat.c   	if (kcmsg_base != (struct cmsghdr *)stackbuf)