[S390] cio/ipl: Clean interface between cio and ipl code.

Clean interface between cio and ipl code, so Peter stops complaining.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
diff --git a/include/asm-s390/cio.h b/include/asm-s390/cio.h
index d927850..0db017b 100644
--- a/include/asm-s390/cio.h
+++ b/include/asm-s390/cio.h
@@ -292,6 +292,13 @@
 
 extern void reipl_ccw_dev(struct ccw_dev_id *id);
 
+struct cio_iplinfo {
+	u16 devno;
+	int is_qdio;
+};
+
+extern int cio_get_iplinfo(struct cio_iplinfo *iplinfo);
+
 #endif
 
 #endif