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-rw-r--r--drivers/s390/cio/chp.c14
-rw-r--r--drivers/s390/cio/css.c69
-rw-r--r--drivers/s390/cio/css.h2
-rw-r--r--drivers/s390/cio/device_fsm.c3
4 files changed, 49 insertions, 39 deletions
diff --git a/drivers/s390/cio/chp.c b/drivers/s390/cio/chp.c
index 920dd71e643..8ce4ff95cc9 100644
--- a/drivers/s390/cio/chp.c
+++ b/drivers/s390/cio/chp.c
@@ -55,7 +55,7 @@ static wait_queue_head_t cfg_wait_queue;
/* Return channel_path struct for given chpid. */
static inline struct channel_path *chpid_to_chp(struct chp_id chpid)
{
- return css[chpid.cssid]->chps[chpid.id];
+ return channel_subsystems[chpid.cssid]->chps[chpid.id];
}
/* Set vary state for given chpid. */
@@ -395,7 +395,7 @@ int chp_new(struct chp_id chpid)
/* fill in status, etc. */
chp->chpid = chpid;
chp->state = 1;
- chp->dev.parent = &css[chpid.cssid]->device;
+ chp->dev.parent = &channel_subsystems[chpid.cssid]->device;
chp->dev.release = chp_release;
snprintf(chp->dev.bus_id, BUS_ID_SIZE, "chp%x.%02x", chpid.cssid,
chpid.id);
@@ -430,18 +430,18 @@ int chp_new(struct chp_id chpid)
device_unregister(&chp->dev);
goto out_free;
}
- mutex_lock(&css[chpid.cssid]->mutex);
- if (css[chpid.cssid]->cm_enabled) {
+ mutex_lock(&channel_subsystems[chpid.cssid]->mutex);
+ if (channel_subsystems[chpid.cssid]->cm_enabled) {
ret = chp_add_cmg_attr(chp);
if (ret) {
sysfs_remove_group(&chp->dev.kobj, &chp_attr_group);
device_unregister(&chp->dev);
- mutex_unlock(&css[chpid.cssid]->mutex);
+ mutex_unlock(&channel_subsystems[chpid.cssid]->mutex);
goto out_free;
}
}
- css[chpid.cssid]->chps[chpid.id] = chp;
- mutex_unlock(&css[chpid.cssid]->mutex);
+ channel_subsystems[chpid.cssid]->chps[chpid.id] = chp;
+ mutex_unlock(&channel_subsystems[chpid.cssid]->mutex);
return ret;
out_free:
kfree(chp);
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c
index 5635e656c1a..08f6e7b6c99 100644
--- a/drivers/s390/cio/css.c
+++ b/drivers/s390/cio/css.c
@@ -27,7 +27,7 @@ int css_init_done = 0;
static int need_reprobe = 0;
static int max_ssid = 0;
-struct channel_subsystem *css[__MAX_CSSID + 1];
+struct channel_subsystem *channel_subsystems[__MAX_CSSID + 1];
int css_characteristics_avail = 0;
@@ -177,7 +177,7 @@ static int css_register_subchannel(struct subchannel *sch)
int ret;
/* Initialize the subchannel structure */
- sch->dev.parent = &css[0]->device;
+ sch->dev.parent = &channel_subsystems[0]->device;
sch->dev.bus = &css_bus_type;
sch->dev.release = &css_subchannel_release;
sch->dev.groups = subch_attr_groups;
@@ -606,27 +606,29 @@ static int __init setup_css(int nr)
{
u32 tod_high;
int ret;
+ struct channel_subsystem *css;
- memset(css[nr], 0, sizeof(struct channel_subsystem));
- css[nr]->pseudo_subchannel =
- kzalloc(sizeof(*css[nr]->pseudo_subchannel), GFP_KERNEL);
- if (!css[nr]->pseudo_subchannel)
+ css = channel_subsystems[nr];
+ memset(css, 0, sizeof(struct channel_subsystem));
+ css->pseudo_subchannel =
+ kzalloc(sizeof(*css->pseudo_subchannel), GFP_KERNEL);
+ if (!css->pseudo_subchannel)
return -ENOMEM;
- css[nr]->pseudo_subchannel->dev.parent = &css[nr]->device;
- css[nr]->pseudo_subchannel->dev.release = css_subchannel_release;
- sprintf(css[nr]->pseudo_subchannel->dev.bus_id, "defunct");
- ret = cio_create_sch_lock(css[nr]->pseudo_subchannel);
+ css->pseudo_subchannel->dev.parent = &css->device;
+ css->pseudo_subchannel->dev.release = css_subchannel_release;
+ sprintf(css->pseudo_subchannel->dev.bus_id, "defunct");
+ ret = cio_create_sch_lock(css->pseudo_subchannel);
if (ret) {
- kfree(css[nr]->pseudo_subchannel);
+ kfree(css->pseudo_subchannel);
return ret;
}
- mutex_init(&css[nr]->mutex);
- css[nr]->valid = 1;
- css[nr]->cssid = nr;
- sprintf(css[nr]->device.bus_id, "css%x", nr);
- css[nr]->device.release = channel_subsystem_release;
+ mutex_init(&css->mutex);
+ css->valid = 1;
+ css->cssid = nr;
+ sprintf(css->device.bus_id, "css%x", nr);
+ css->device.release = channel_subsystem_release;
tod_high = (u32) (get_clock() >> 32);
- css_generate_pgid(css[nr], tod_high);
+ css_generate_pgid(css, tod_high);
return 0;
}
@@ -670,25 +672,28 @@ init_channel_subsystem (void)
}
/* Setup css structure. */
for (i = 0; i <= __MAX_CSSID; i++) {
- css[i] = kmalloc(sizeof(struct channel_subsystem), GFP_KERNEL);
- if (!css[i]) {
+ struct channel_subsystem *css;
+
+ css = kmalloc(sizeof(struct channel_subsystem), GFP_KERNEL);
+ if (!css) {
ret = -ENOMEM;
goto out_unregister;
}
+ channel_subsystems[i] = css;
ret = setup_css(i);
if (ret)
goto out_free;
- ret = device_register(&css[i]->device);
+ ret = device_register(&css->device);
if (ret)
goto out_free_all;
if (css_characteristics_avail &&
css_chsc_characteristics.secm) {
- ret = device_create_file(&css[i]->device,
+ ret = device_create_file(&css->device,
&dev_attr_cm_enable);
if (ret)
goto out_device;
}
- ret = device_register(&css[i]->pseudo_subchannel->dev);
+ ret = device_register(&css->pseudo_subchannel->dev);
if (ret)
goto out_file;
}
@@ -699,22 +704,26 @@ init_channel_subsystem (void)
for_each_subchannel(__init_channel_subsystem, NULL);
return 0;
out_file:
- device_remove_file(&css[i]->device, &dev_attr_cm_enable);
+ device_remove_file(&channel_subsystems[i]->device,
+ &dev_attr_cm_enable);
out_device:
- device_unregister(&css[i]->device);
+ device_unregister(&channel_subsystems[i]->device);
out_free_all:
- kfree(css[i]->pseudo_subchannel->lock);
- kfree(css[i]->pseudo_subchannel);
+ kfree(channel_subsystems[i]->pseudo_subchannel->lock);
+ kfree(channel_subsystems[i]->pseudo_subchannel);
out_free:
- kfree(css[i]);
+ kfree(channel_subsystems[i]);
out_unregister:
while (i > 0) {
+ struct channel_subsystem *css;
+
i--;
- device_unregister(&css[i]->pseudo_subchannel->dev);
+ css = channel_subsystems[i];
+ device_unregister(&css->pseudo_subchannel->dev);
if (css_characteristics_avail && css_chsc_characteristics.secm)
- device_remove_file(&css[i]->device,
+ device_remove_file(&css->device,
&dev_attr_cm_enable);
- device_unregister(&css[i]->device);
+ device_unregister(&css->device);
}
out_bus:
bus_unregister(&css_bus_type);
diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 5d65e83ca66..f290c5c0f27 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -167,7 +167,7 @@ struct channel_subsystem {
#define to_css(dev) container_of(dev, struct channel_subsystem, device)
extern struct bus_type css_bus_type;
-extern struct channel_subsystem *css[];
+extern struct channel_subsystem *channel_subsystems[];
/* Some helper functions for disconnected state. */
int device_is_disconnected(struct subchannel *);
diff --git a/drivers/s390/cio/device_fsm.c b/drivers/s390/cio/device_fsm.c
index 8633dc53769..f772ef0a4f2 100644
--- a/drivers/s390/cio/device_fsm.c
+++ b/drivers/s390/cio/device_fsm.c
@@ -446,7 +446,8 @@ static void __ccw_device_get_common_pgid(struct ccw_device *cdev)
if (cdev->private->pgid[last].inf.ps.state1 ==
SNID_STATE1_RESET)
/* No previous pgid found */
- memcpy(&cdev->private->pgid[0], &css[0]->global_pgid,
+ memcpy(&cdev->private->pgid[0],
+ &channel_subsystems[0]->global_pgid,
sizeof(struct pgid));
else
/* Use existing pgid */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-27 14:10:44 +0000