diff options
Diffstat (limited to 'arch/powerpc/platforms/pseries/dlpar.c')
-rw-r--r-- | arch/powerpc/platforms/pseries/dlpar.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index e45b5f10645a..a0b20c03f078 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -75,24 +75,17 @@ static struct property *dlpar_parse_cc_property(struct cc_workarea *ccwa) return prop; } -static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa, - const char *path) +static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa) { struct device_node *dn; - char *name; - - /* If parent node path is "/" advance path to NULL terminator to - * prevent double leading slashs in full_name. - */ - if (!path[1]) - path++; + const char *name; dn = kzalloc(sizeof(*dn), GFP_KERNEL); if (!dn) return NULL; - name = (char *)ccwa + be32_to_cpu(ccwa->name_offset); - dn->full_name = kasprintf(GFP_KERNEL, "%s/%s", path, name); + name = (const char *)ccwa + be32_to_cpu(ccwa->name_offset); + dn->full_name = kstrdup(name, GFP_KERNEL); if (!dn->full_name) { kfree(dn); return NULL; @@ -148,7 +141,6 @@ struct device_node *dlpar_configure_connector(__be32 drc_index, struct property *last_property = NULL; struct cc_workarea *ccwa; char *data_buf; - const char *parent_path = parent->full_name; int cc_token; int rc = -1; @@ -182,7 +174,7 @@ struct device_node *dlpar_configure_connector(__be32 drc_index, break; case NEXT_SIBLING: - dn = dlpar_parse_cc_node(ccwa, parent_path); + dn = dlpar_parse_cc_node(ccwa); if (!dn) goto cc_error; @@ -192,10 +184,7 @@ struct device_node *dlpar_configure_connector(__be32 drc_index, break; case NEXT_CHILD: - if (first_dn) - parent_path = last_dn->full_name; - - dn = dlpar_parse_cc_node(ccwa, parent_path); + dn = dlpar_parse_cc_node(ccwa); if (!dn) goto cc_error; @@ -226,7 +215,6 @@ struct device_node *dlpar_configure_connector(__be32 drc_index, case PREV_PARENT: last_dn = last_dn->parent; - parent_path = last_dn->parent->full_name; break; case CALL_AGAIN: @@ -586,11 +574,26 @@ static ssize_t dlpar_show(struct class *class, struct class_attribute *attr, static CLASS_ATTR_RW(dlpar); -static int __init pseries_dlpar_init(void) +int __init dlpar_workqueue_init(void) { + if (pseries_hp_wq) + return 0; + pseries_hp_wq = alloc_workqueue("pseries hotplug workqueue", - WQ_UNBOUND, 1); + WQ_UNBOUND, 1); + + return pseries_hp_wq ? 0 : -ENOMEM; +} + +static int __init dlpar_sysfs_init(void) +{ + int rc; + + rc = dlpar_workqueue_init(); + if (rc) + return rc; + return sysfs_create_file(kernel_kobj, &class_attr_dlpar.attr); } -machine_device_initcall(pseries, pseries_dlpar_init); +machine_device_initcall(pseries, dlpar_sysfs_init); |