[S390] cio: Get rid of css_characteristics_avail.

Checking for the validity of the css_*_characteristics is
superfluous since they stay 0 for non-successful scsc.

Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>

1 files changed, 0 insertions, 1 deletions

diff --git a/drivers/s390/cio/chsc.h b/drivers/s390/cio/chsc.h
index d4498d4005d3..2a38b5090228 100644
--- a/drivers/s390/cio/chsc.h
+++ b/drivers/s390/cio/chsc.h
@@ -78,7 +78,6 @@ struct chsc_ssd_info {
 extern int chsc_get_ssd_info(struct subchannel_id schid,
                              struct chsc_ssd_info *ssd);
 extern int chsc_determine_css_characteristics(void);
-extern int css_characteristics_avail;
 extern int chsc_alloc_sei_area(void);
 extern void chsc_free_sei_area(void);