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authorCornelia Huck <cornelia.huck@de.ibm.com>2008-07-14 09:58:57 +0200
committerHeiko Carstens <heiko.carstens@de.ibm.com>2008-07-14 10:02:10 +0200
commit75784c00876c88ca6e955c39cbb5d47cf408fd3c (patch)
tree7f1122b85945d17da87f0dc353d476cd9eec1cf2 /drivers/s390/cio/css.c
parentd2fec595511b5718bdb65645b3d5d99800d97943 (diff)
[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>
Diffstat (limited to 'drivers/s390/cio/css.c')
-rw-r--r--drivers/s390/cio/css.c12
1 files changed, 3 insertions, 9 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 062716cf0f0..ebed2212778 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -30,8 +30,6 @@ static int max_ssid = 0;
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 @@ __init_channel_subsystem(struct subchannel_id schid, void *data)
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 @@ init_channel_subsystem (void)
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 @@ init_channel_subsystem (void)
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 @@ out_unregister:
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 @@ subsys_initcall(init_channel_subsystem);
MODULE_LICENSE("GPL");
EXPORT_SYMBOL(css_bus_type);
-EXPORT_SYMBOL_GPL(css_characteristics_avail);