[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>
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 062716cf..ebed221 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -30,8 +30,6 @@
struct channel_subsystem *channel_subsystems[__MAX_CSSID + 1];
-int css_characteristics_avail = 0;
-
int
for_each_subchannel(int(*fn)(struct subchannel_id, void *), void *data)
{
@@ -611,7 +609,7 @@
static void __init
css_generate_pgid(struct channel_subsystem *css, u32 tod_high)
{
- if (css_characteristics_avail && css_general_characteristics.mcss) {
+ if (css_general_characteristics.mcss) {
css->global_pgid.pgid_high.ext_cssid.version = 0x80;
css->global_pgid.pgid_high.ext_cssid.cssid = css->cssid;
} else {
@@ -748,8 +746,6 @@
ret = chsc_determine_css_characteristics();
if (ret == -ENOMEM)
goto out; /* No need to continue. */
- if (ret == 0)
- css_characteristics_avail = 1;
ret = chsc_alloc_sei_area();
if (ret)
@@ -793,8 +789,7 @@
ret = device_register(&css->device);
if (ret)
goto out_free_all;
- if (css_characteristics_avail &&
- css_chsc_characteristics.secm) {
+ if (css_chsc_characteristics.secm) {
ret = device_create_file(&css->device,
&dev_attr_cm_enable);
if (ret)
@@ -832,7 +827,7 @@
i--;
css = channel_subsystems[i];
device_unregister(&css->pseudo_subchannel->dev);
- if (css_characteristics_avail && css_chsc_characteristics.secm)
+ if (css_chsc_characteristics.secm)
device_remove_file(&css->device,
&dev_attr_cm_enable);
device_unregister(&css->device);
@@ -956,4 +951,3 @@
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(css_bus_type);
-EXPORT_SYMBOL_GPL(css_characteristics_avail);