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| author | Sebastian Ott <sebott@linux.vnet.ibm.com> | 2009-09-22 22:58:37 +0200 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2009-09-22 22:58:42 +0200 |
| commit | b0a285d31bd475fdd4312e457288be558b705e55 (patch) | |
| tree | a8e99fc301bedaff3e141b68f7f16183a810192e /drivers/s390 | |
| parent | b827d1c8b65b27a293433e7c4723c7dfd6c4b848 (diff) | |
| download | linux-b0a285d31bd475fdd4312e457288be558b705e55.tar.gz | |
[S390] cio: idset use actual number of ssids
The functions idset_sch_new and for_each_subchannel_staged use different values for the number of subchannel sets. Make it consistent by changing idset_sch_new to also use the actual number of subchannel sets. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
| -rw-r--r-- | drivers/s390/cio/css.c | 26 | ||||
| -rw-r--r-- | drivers/s390/cio/css.h | 1 | ||||
| -rw-r--r-- | drivers/s390/cio/idset.c | 2 |
3 files changed, 15 insertions, 14 deletions
diff --git a/drivers/s390/cio/css.c b/drivers/s390/cio/css.c index b43f769d445e..5e217bbf8797 100644 --- a/drivers/s390/cio/css.c +++ b/drivers/s390/cio/css.c @@ -32,7 +32,7 @@ int css_init_done = 0; static int need_reprobe = 0; -static int max_ssid = 0; +int max_ssid; struct channel_subsystem *channel_subsystems[__MAX_CSSID + 1]; @@ -879,6 +879,18 @@ static int __init css_bus_init(void) if (ret) goto out; + /* Try to enable MSS. */ + ret = chsc_enable_facility(CHSC_SDA_OC_MSS); + switch (ret) { + case 0: /* Success. */ + max_ssid = __MAX_SSID; + break; + case -ENOMEM: + goto out; + default: + max_ssid = 0; + } + ret = slow_subchannel_init(); if (ret) goto out; @@ -890,17 +902,6 @@ static int __init css_bus_init(void) if ((ret = bus_register(&css_bus_type))) goto out; - /* Try to enable MSS. */ - ret = chsc_enable_facility(CHSC_SDA_OC_MSS); - switch (ret) { - case 0: /* Success. */ - max_ssid = __MAX_SSID; - break; - case -ENOMEM: - goto out_bus; - default: - max_ssid = 0; - } /* Setup css structure. */ for (i = 0; i <= __MAX_CSSID; i++) { struct channel_subsystem *css; @@ -966,7 +967,6 @@ out_unregister: &dev_attr_cm_enable); device_unregister(&css->device); } -out_bus: bus_unregister(&css_bus_type); out: crw_unregister_handler(CRW_RSC_CSS); diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h index 54acdaade86e..68d6b0bf151c 100644 --- a/drivers/s390/cio/css.h +++ b/drivers/s390/cio/css.h @@ -111,6 +111,7 @@ extern void css_sch_device_unregister(struct subchannel *); extern int css_probe_device(struct subchannel_id); extern struct subchannel *get_subchannel_by_schid(struct subchannel_id); extern int css_init_done; +extern int max_ssid; int for_each_subchannel_staged(int (*fn_known)(struct subchannel *, void *), int (*fn_unknown)(struct subchannel_id, void *), void *data); diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c index 77e42cb127bb..5c88faf5b897 100644 --- a/drivers/s390/cio/idset.c +++ b/drivers/s390/cio/idset.c @@ -78,7 +78,7 @@ static inline int idset_get_first(struct idset *set, int *ssid, int *id) struct idset *idset_sch_new(void) { - return idset_new(__MAX_SSID + 1, __MAX_SUBCHANNEL + 1); + return idset_new(max_ssid + 1, __MAX_SUBCHANNEL + 1); } void idset_sch_add(struct idset *set, struct subchannel_id schid) |