diff options
| -rw-r--r-- | drivers/edac/edac_core.h | 10 | ||||
| -rw-r--r-- | drivers/edac/edac_device.c | 37 | ||||
| -rw-r--r-- | drivers/edac/edac_device_sysfs.c | 341 | ||||
| -rw-r--r-- | drivers/edac/edac_module.h | 4 |
4 files changed, 277 insertions, 115 deletions
diff --git a/drivers/edac/edac_core.h b/drivers/edac/edac_core.h index bd7f00cf2443..4e31ac438760 100644 --- a/drivers/edac/edac_core.h +++ b/drivers/edac/edac_core.h @@ -337,6 +337,9 @@ struct mcidev_sysfs_attribute { */ struct mem_ctl_info { struct list_head link; /* for global list of mem_ctl_info structs */ + + struct module *owner; /* Module owner of this control struct */ + unsigned long mtype_cap; /* memory types supported by mc */ unsigned long edac_ctl_cap; /* Mem controller EDAC capabilities */ unsigned long edac_cap; /* configuration capabilities - this is @@ -510,7 +513,6 @@ struct edac_device_block { /* edac sysfs device control */ struct kobject kobj; - struct completion kobj_complete; }; /* device instance control structure */ @@ -525,7 +527,6 @@ struct edac_device_instance { /* edac sysfs device control */ struct kobject kobj; - struct completion kobj_complete; }; @@ -537,6 +538,8 @@ struct edac_device_ctl_info { /* for global list of edac_device_ctl_info structs */ struct list_head link; + struct module *owner; /* Module owner of this control struct */ + int dev_idx; /* Per instance controls for this edac_device */ @@ -587,7 +590,7 @@ struct edac_device_ctl_info { * NMI handlers may be traversing list */ struct rcu_head rcu; - struct completion complete; + struct completion removal_complete; /* sysfs top name under 'edac' directory * and instance name: @@ -611,7 +614,6 @@ struct edac_device_ctl_info { * device this structure controls */ struct kobject kobj; - struct completion kobj_complete; }; /* To get from the instance's wq to the beginning of the ctl structure */ diff --git a/drivers/edac/edac_device.c b/drivers/edac/edac_device.c index 6020da68cbef..173f4ba0f7c8 100644 --- a/drivers/edac/edac_device.c +++ b/drivers/edac/edac_device.c @@ -48,6 +48,7 @@ static void edac_device_dump_device(struct edac_device_ctl_info *edac_dev) } #endif /* CONFIG_EDAC_DEBUG */ + /* * edac_device_alloc_ctl_info() * Allocate a new edac device control info structure @@ -78,6 +79,7 @@ struct edac_device_ctl_info *edac_device_alloc_ctl_info( unsigned count; unsigned instance, block, attr; void *pvt; + int err; debugf1("%s() instances=%d blocks=%d\n", __func__, nr_instances, nr_blocks); @@ -208,6 +210,22 @@ struct edac_device_ctl_info *edac_device_alloc_ctl_info( /* Mark this instance as merely ALLOCATED */ dev_ctl->op_state = OP_ALLOC; + /* + * Initialize the 'root' kobj for the edac_device controller + */ + err = edac_device_register_sysfs_main_kobj(dev_ctl); + if (err) { + kfree(dev_ctl); + return NULL; + } + + /* at this point, the root kobj is valid, and in order to + * 'free' the object, then the function: + * edac_device_unregister_sysfs_main_kobj() must be called + * which will perform kobj unregistration and the actual free + * will occur during the kobject callback operation + */ + return dev_ctl; } EXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info); @@ -219,7 +237,7 @@ EXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info); */ void edac_device_free_ctl_info(struct edac_device_ctl_info *ctl_info) { - kfree(ctl_info); + edac_device_unregister_sysfs_main_kobj(ctl_info); } EXPORT_SYMBOL_GPL(edac_device_free_ctl_info); @@ -315,22 +333,23 @@ static void complete_edac_device_list_del(struct rcu_head *head) edac_dev = container_of(head, struct edac_device_ctl_info, rcu); INIT_LIST_HEAD(&edac_dev->link); - complete(&edac_dev->complete); + complete(&edac_dev->removal_complete); } /* * del_edac_device_from_global_list * - * remove the RCU, setup for a callback call, then wait for the - * callback to occur + * remove the RCU, setup for a callback call, + * then wait for the callback to occur */ static void del_edac_device_from_global_list(struct edac_device_ctl_info *edac_device) { list_del_rcu(&edac_device->link); - init_completion(&edac_device->complete); + + init_completion(&edac_device->removal_complete); call_rcu(&edac_device->rcu, complete_edac_device_list_del); - wait_for_completion(&edac_device->complete); + wait_for_completion(&edac_device->removal_complete); } /** @@ -542,14 +561,14 @@ struct edac_device_ctl_info *edac_device_del_device(struct device *dev) /* clear workq processing on this instance */ edac_device_workq_teardown(edac_dev); - /* Tear down the sysfs entries for this instance */ - edac_device_remove_sysfs(edac_dev); - /* deregister from global list */ del_edac_device_from_global_list(edac_dev); mutex_unlock(&device_ctls_mutex); + /* Tear down the sysfs entries for this instance */ + edac_device_remove_sysfs(edac_dev); + edac_printk(KERN_INFO, EDAC_MC, "Removed device %d for %s %s: DEV %s\n", edac_dev->dev_idx, diff --git a/drivers/edac/edac_device_sysfs.c b/drivers/edac/edac_device_sysfs.c index 235b4c79355d..52769ae69bd2 100644 --- a/drivers/edac/edac_device_sysfs.c +++ b/drivers/edac/edac_device_sysfs.c @@ -1,7 +1,8 @@ /* * file for managing the edac_device class of devices for EDAC * - * (C) 2007 SoftwareBitMaker(http://www.softwarebitmaker.com) + * (C) 2007 SoftwareBitMaker (http://www.softwarebitmaker.com) + * * This file may be distributed under the terms of the * GNU General Public License. * @@ -10,6 +11,7 @@ */ #include <linux/ctype.h> +#include <linux/module.h> #include "edac_core.h" #include "edac_module.h" @@ -19,7 +21,6 @@ #define to_edacdev(k) container_of(k, struct edac_device_ctl_info, kobj) #define to_edacdev_attr(a) container_of(a, struct edacdev_attribute, attr) -/************************** edac_device sysfs code and data **************/ /* * Set of edac_device_ctl_info attribute store/show functions @@ -103,8 +104,8 @@ static ssize_t edac_device_ctl_poll_msec_store(struct edac_device_ctl_info /* edac_device_ctl_info specific attribute structure */ struct ctl_info_attribute { struct attribute attr; - ssize_t(*show) (struct edac_device_ctl_info *, char *); - ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t); + ssize_t(*show) (struct edac_device_ctl_info *, char *); + ssize_t(*store) (struct edac_device_ctl_info *, const char *, size_t); }; #define to_ctl_info(k) container_of(k, struct edac_device_ctl_info, kobj) @@ -168,45 +169,76 @@ static struct ctl_info_attribute *device_ctrl_attr[] = { NULL, }; -/* Main DEVICE kobject release() function */ +/* + * edac_device_ctrl_master_release + * + * called when the reference count for the 'main' kobj + * for a edac_device control struct reaches zero + * + * Reference count model: + * One 'main' kobject for each control structure allocated. + * That main kobj is initially set to one AND + * the reference count for the EDAC 'core' module is + * bumped by one, thus added 'keep in memory' dependency. + * + * Each new internal kobj (in instances and blocks) then + * bumps the 'main' kobject. + * + * When they are released their release functions decrement + * the 'main' kobj. + * + * When the main kobj reaches zero (0) then THIS function + * is called which then decrements the EDAC 'core' module. + * When the module reference count reaches zero then the + * module no longer has dependency on keeping the release + * function code in memory and module can be unloaded. + * + * This will support several control objects as well, each + * with its own 'main' kobj. + */ static void edac_device_ctrl_master_release(struct kobject *kobj) { - struct edac_device_ctl_info *edac_dev; + struct edac_device_ctl_info *edac_dev = to_edacdev(kobj); - edac_dev = to_edacdev(kobj); + debugf1("%s() control index=%d\n", __func__, edac_dev->dev_idx); - debugf1("%s()\n", __func__); - complete(&edac_dev->kobj_complete); + /* decrement the EDAC CORE module ref count */ + module_put(edac_dev->owner); + + /* free the control struct containing the 'main' kobj + * passed in to this routine + */ + kfree(edac_dev); } +/* ktype for the main (master) kobject */ static struct kobj_type ktype_device_ctrl = { .release = edac_device_ctrl_master_release, .sysfs_ops = &device_ctl_info_ops, .default_attrs = (struct attribute **)device_ctrl_attr, }; -/**************** edac_device main kobj ctor/dtor code *********************/ - /* - * edac_device_register_main_kobj + * edac_device_register_sysfs_main_kobj * * perform the high level setup for the new edac_device instance * * Return: 0 SUCCESS * !0 FAILURE */ -static int edac_device_register_main_kobj(struct edac_device_ctl_info *edac_dev) +int edac_device_register_sysfs_main_kobj(struct edac_device_ctl_info *edac_dev) { - int err = 0; struct sysdev_class *edac_class; + int err; debugf1("%s()\n", __func__); /* get the /sys/devices/system/edac reference */ edac_class = edac_get_edac_class(); if (edac_class == NULL) { - debugf1("%s() no edac_class error=%d\n", __func__, err); - return err; + debugf1("%s() no edac_class error\n", __func__); + err = -ENODEV; + goto err_out; } /* Point to the 'edac_class' this instance 'reports' to */ @@ -223,42 +255,65 @@ static int edac_device_register_main_kobj(struct edac_device_ctl_info *edac_dev) debugf1("%s() set name of kobject to: %s\n", __func__, edac_dev->name); err = kobject_set_name(&edac_dev->kobj, "%s", edac_dev->name); if (err) - return err; + goto err_out; + + /* Record which module 'owns' this control structure + * and bump the ref count of the module + */ + edac_dev->owner = THIS_MODULE; + + if (!try_module_get(edac_dev->owner)) { + err = -ENODEV; + goto err_out; + } + + /* register */ err = kobject_register(&edac_dev->kobj); if (err) { debugf1("%s()Failed to register '.../edac/%s'\n", __func__, edac_dev->name); - return err; + goto err_kobj_reg; } + /* At this point, to 'free' the control struct, + * edac_device_unregister_sysfs_main_kobj() must be used + */ + debugf1("%s() Registered '.../edac/%s' kobject\n", __func__, edac_dev->name); return 0; + + /* Error exit stack */ +err_kobj_reg: + module_put(edac_dev->owner); + +err_out: + return err; } /* - * edac_device_unregister_main_kobj: + * edac_device_unregister_sysfs_main_kobj: * the '..../edac/<name>' kobject */ -static void edac_device_unregister_main_kobj(struct edac_device_ctl_info - *edac_dev) +void edac_device_unregister_sysfs_main_kobj( + struct edac_device_ctl_info *edac_dev) { debugf0("%s()\n", __func__); debugf1("%s() name of kobject is: %s\n", __func__, kobject_name(&edac_dev->kobj)); - init_completion(&edac_dev->kobj_complete); - /* * Unregister the edac device's kobject and - * wait for reference count to reach 0. + * allow for reference count to reach 0 at which point + * the callback will be called to: + * a) module_put() this module + * b) 'kfree' the memory */ kobject_unregister(&edac_dev->kobj); - wait_for_completion(&edac_dev->kobj_complete); } -/*************** edac_dev -> instance information ***********/ +/* edac_dev -> instance information */ /* * Set of low-level instance attribute show functions @@ -285,8 +340,11 @@ static void edac_device_ctrl_instance_release(struct kobject *kobj) debugf1("%s()\n", __func__); + /* map from this kobj to the main control struct + * and then dec the main kobj count + */ instance = to_instance(kobj); - complete(&instance->kobj_complete); + kobject_put(&instance->ctl->kobj); } /* instance specific attribute structure */ @@ -356,7 +414,7 @@ static struct kobj_type ktype_instance_ctrl = { .default_attrs = (struct attribute **)device_instance_attr, }; -/*************** edac_dev -> instance -> block information *********/ +/* edac_dev -> instance -> block information */ /* * Set of low-level block attribute show functions @@ -381,8 +439,13 @@ static void edac_device_ctrl_block_release(struct kobject *kobj) debugf1("%s()\n", __func__); + /* get the container of the kobj */ block = to_block(kobj); - complete(&block->kobj_complete); + + /* map from 'block kobj' to 'block->instance->controller->main_kobj' + * now 'release' the block kobject + */ + kobject_put(&block->instance->ctl->kobj); } /* block specific attribute structure */ @@ -447,49 +510,60 @@ static struct kobj_type ktype_block_ctrl = { .default_attrs = (struct attribute **)device_block_attr, }; -/************** block ctor/dtor code ************/ +/* block ctor/dtor code */ /* * edac_device_create_block */ static int edac_device_create_block(struct edac_device_ctl_info *edac_dev, struct edac_device_instance *instance, - int idx) + struct edac_device_block *block) { int i; int err; - struct edac_device_block *block; struct edac_dev_sysfs_block_attribute *sysfs_attrib; + struct kobject *main_kobj; - block = &instance->blocks[idx]; - - debugf1("%s() Instance '%s' block[%d] '%s'\n", - __func__, instance->name, idx, block->name); + debugf1("%s() Instance '%s' block '%s'\n", + __func__, instance->name, block->name); /* init this block's kobject */ memset(&block->kobj, 0, sizeof(struct kobject)); block->kobj.parent = &instance->kobj; block->kobj.ktype = &ktype_block_ctrl; + block->instance = instance; err = kobject_set_name(&block->kobj, "%s", block->name); if (err) return err; + /* bump the main kobject's reference count for this controller + * and this instance is dependant on the main + */ + main_kobj = kobject_get(&edac_dev->kobj); + if (!main_kobj) { + err = -ENODEV; + goto err_out; + } + + /* Add this block's kobject */ err = kobject_register(&block->kobj); if (err) { - debugf1("%s()Failed to register instance '%s'\n", + debugf1("%s() Failed to register instance '%s'\n", __func__, block->name); - return err; + kobject_put(main_kobj); + err = -ENODEV; + goto err_out; } /* If there are driver level block attributes, then added them * to the block kobject */ sysfs_attrib = block->block_attributes; - if (sysfs_attrib != NULL) { + if (sysfs_attrib) { for (i = 0; i < block->nr_attribs; i++) { err = sysfs_create_file(&block->kobj, - (struct attribute *) &sysfs_attrib[i]); + (struct attribute *) sysfs_attrib); if (err) goto err_on_attrib; @@ -499,30 +573,41 @@ static int edac_device_create_block(struct edac_device_ctl_info *edac_dev, return 0; + /* Error unwind stack */ err_on_attrib: kobject_unregister(&block->kobj); +err_out: return err; } /* - * edac_device_delete_block(edac_dev,j); + * edac_device_delete_block(edac_dev,block); */ static void edac_device_delete_block(struct edac_device_ctl_info *edac_dev, - struct edac_device_instance *instance, - int idx) + struct edac_device_block *block) { - struct edac_device_block *block; + struct edac_dev_sysfs_block_attribute *sysfs_attrib; + int i; - block = &instance->blocks[idx]; + /* if this block has 'attributes' then we need to iterate over the list + * and 'remove' the attributes on this block + */ + sysfs_attrib = block->block_attributes; + if (sysfs_attrib && block->nr_attribs) { + for (i = 0; i < block->nr_attribs; i++) { + sysfs_remove_file(&block->kobj, + (struct attribute *) sysfs_attrib); + } + } - /* unregister this block's kobject */ - init_completion(&block->kobj_complete); + /* unregister this block's kobject, SEE: + * edac_device_ctrl_block_release() callback operation + */ kobject_unregister(&block->kobj); - wait_for_completion(&block->kobj_complete); } -/************** instance ctor/dtor code ************/ +/* instance ctor/dtor code */ /* * edac_device_create_instance @@ -534,6 +619,7 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev, int i, j; int err; struct edac_device_instance *instance; + struct kobject *main_kobj; instance = &edac_dev->instances[idx]; @@ -543,16 +629,28 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev, /* set this new device under the edac_device main kobject */ instance->kobj.parent = &edac_dev->kobj; instance->kobj.ktype = &ktype_instance_ctrl; + instance->ctl = edac_dev; err = kobject_set_name(&instance->kobj, "%s", instance->name); if (err) - return err; + goto err_out; + + /* bump the main kobject's reference count for this controller + * and this instance is dependant on the main + */ + main_kobj = kobject_get(&edac_dev->kobj); + if (!main_kobj) { + err = -ENODEV; + goto err_out; + } + /* Formally register this instance's kobject */ err = kobject_register(&instance->kobj); if (err != 0) { debugf2("%s() Failed to register instance '%s'\n", __func__, instance->name); - return err; + kobject_put(main_kobj); + goto err_out; } debugf1("%s() now register '%d' blocks for instance %d\n", @@ -560,11 +658,14 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev, /* register all blocks of this instance */ for (i = 0; i < instance->nr_blocks; i++) { - err = edac_device_create_block(edac_dev, instance, i); + err = edac_device_create_block(edac_dev, instance, + &instance->blocks[i]); if (err) { + /* If any fail, remove all previous ones */ for (j = 0; j < i; j++) - edac_device_delete_block(edac_dev, instance, j); - return err; + edac_device_delete_block(edac_dev, + &instance->blocks[j]); + goto err_release_instance_kobj; } } @@ -572,6 +673,13 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev, __func__, idx, instance->name); return 0; + + /* error unwind stack */ +err_release_instance_kobj: + kobject_unregister(&instance->kobj); + +err_out: + return err; } /* @@ -581,19 +689,19 @@ static int edac_device_create_instance(struct edac_device_ctl_info *edac_dev, static void edac_device_delete_instance(struct edac_device_ctl_info *edac_dev, int idx) { - int i; struct edac_device_instance *instance; + int i; instance = &edac_dev->instances[idx]; /* unregister all blocks in this instance */ for (i = 0; i < instance->nr_blocks; i++) - edac_device_delete_block(edac_dev, instance, i); + edac_device_delete_block(edac_dev, &instance->blocks[i]); - /* unregister this instance's kobject */ - init_completion(&instance->kobj_complete); + /* unregister this instance's kobject, SEE: + * edac_device_ctrl_instance_release() for callback operation + */ kobject_unregister(&instance->kobj); - wait_for_completion(&instance->kobj_complete); } /* @@ -635,39 +743,69 @@ static void edac_device_delete_instances(struct edac_device_ctl_info *edac_dev) edac_device_delete_instance(edac_dev, i); } -/******************* edac_dev sysfs ctor/dtor code *************/ +/* edac_dev sysfs ctor/dtor code */ /* - * edac_device_add_sysfs_attributes + * edac_device_add_main_sysfs_attributes * add some attributes to this instance's main kobject */ -static int edac_device_add_sysfs_attributes( +static int edac_device_add_main_sysfs_attributes( struct edac_device_ctl_info *edac_dev) { - int err; struct edac_dev_sysfs_attribute *sysfs_attrib; + int err = 0; - /* point to the start of the array and iterate over it - * adding each attribute listed to this mci instance's kobject - */ sysfs_attrib = edac_dev->sysfs_attributes; - - while (sysfs_attrib->attr.name != NULL) { - err = sysfs_create_file(&edac_dev->kobj, + if (sysfs_attrib) { + /* iterate over the array and create an attribute for each + * entry in the list + */ + while (sysfs_attrib->attr.name != NULL) { + err = sysfs_create_file(&edac_dev->kobj, (struct attribute*) sysfs_attrib); - if (err) - return err; + if (err) + goto err_out; - sysfs_attrib++; + sysfs_attrib++; + } } - return 0; +err_out: + return err; +} + +/* + * edac_device_remove_main_sysfs_attributes + * remove any attributes to this instance's main kobject + */ +static void edac_device_remove_main_sysfs_attributes( + struct edac_device_ctl_info *edac_dev) +{ + struct edac_dev_sysfs_attribute *sysfs_attrib; + + /* if there are main attributes, defined, remove them. First, + * point to the start of the array and iterate over it + * removing each attribute listed from this device's instance's kobject + */ + sysfs_attrib = edac_dev->sysfs_attributes; + if (sysfs_attrib) { + while (sysfs_attrib->attr.name != NULL) { + sysfs_remove_file(&edac_dev->kobj, + (struct attribute *) sysfs_attrib); + sysfs_attrib++; + } + } } /* * edac_device_create_sysfs() Constructor * - * Create a new edac_device kobject instance, + * accept a created edac_device control structure + * and 'export' it to sysfs. The 'main' kobj should already have been + * created. 'instance' and 'block' kobjects should be registered + * along with any 'block' attributes from the low driver. In addition, + * the main attributes (if any) are connected to the main kobject of + * the control structure. * * Return: * 0 Success @@ -678,23 +816,13 @@ int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev) int err; struct kobject *edac_kobj = &edac_dev->kobj; - /* register this instance's main kobj with the edac class kobj */ - err = edac_device_register_main_kobj(edac_dev); - if (err) - return err; - debugf0("%s() idx=%d\n", __func__, edac_dev->dev_idx); - /* If the low level driver requests some sysfs entries - * then go create them here - */ - if (edac_dev->sysfs_attributes != NULL) { - err = edac_device_add_sysfs_attributes(edac_dev); - if (err) { - debugf0("%s() failed to add sysfs attribs\n", - __func__); - goto err_unreg_object; - } + /* go create any main attributes callers wants */ + err = edac_device_add_main_sysfs_attributes(edac_dev); + if (err) { + debugf0("%s() failed to add sysfs attribs\n", __func__); + goto err_out; } /* create a symlink from the edac device @@ -705,16 +833,23 @@ int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev) if (err) { debugf0("%s() sysfs_create_link() returned err= %d\n", __func__, err); - goto err_unreg_object; + goto err_remove_main_attribs; } - debugf0("%s() calling create-instances, idx=%d\n", - __func__, edac_dev->dev_idx); - - /* Create the first level instance directories */ + /* Create the first level instance directories + * In turn, the nested blocks beneath the instances will + * be registered as well + */ err = edac_device_create_instances(edac_dev); - if (err) + if (err) { + debugf0("%s() edac_device_create_instances() " + "returned err= %d\n", __func__, err); goto err_remove_link; + } + + + debugf0("%s() calling create-instances, idx=%d\n", + __func__, edac_dev->dev_idx); return 0; @@ -723,26 +858,28 @@ err_remove_link: /* remove the sym link */ sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK); -err_unreg_object: - edac_device_unregister_main_kobj(edac_dev); +err_remove_main_attribs: + edac_device_remove_main_sysfs_attributes(edac_dev); +err_out: return err; } /* * edac_device_remove_sysfs() destructor * - * remove a edac_device instance + * given an edac_device struct, tear down the kobject resources */ void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev) { debugf0("%s()\n", __func__); - edac_device_delete_instances(edac_dev); + /* remove any main attributes for this device */ + edac_device_remove_main_sysfs_attributes(edac_dev); - /* remove the sym link */ + /* remove the device sym link */ sysfs_remove_link(&edac_dev->kobj, EDAC_DEVICE_SYMLINK); - /* unregister the instance's main kobj */ - edac_device_unregister_main_kobj(edac_dev); + /* walk the instance/block kobject tree, deconstructing it */ + edac_device_delete_instances(edac_dev); } diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h index 6368cc658fc6..a2134dfc3cc6 100644 --- a/drivers/edac/edac_module.h +++ b/drivers/edac/edac_module.h @@ -37,6 +37,10 @@ extern int edac_mc_get_panic_on_ue(void); extern int edac_get_poll_msec(void); extern int edac_mc_get_poll_msec(void); +extern int edac_device_register_sysfs_main_kobj( + struct edac_device_ctl_info *edac_dev); +extern void edac_device_unregister_sysfs_main_kobj( + struct edac_device_ctl_info *edac_dev); extern int edac_device_create_sysfs(struct edac_device_ctl_info *edac_dev); extern void edac_device_remove_sysfs(struct edac_device_ctl_info *edac_dev); extern struct sysdev_class *edac_get_edac_class(void); |