Release 4.12 drivers/edac/edac_device.c
  
  
  
/*
 * edac_device.c
 * (C) 2007 www.douglaskthompson.com
 *
 * This file may be distributed under the terms of the
 * GNU General Public License.
 *
 * Written by Doug Thompson <norsk5@xmission.com>
 *
 * edac_device API implementation
 * 19 Jan 2007
 */
#include <asm/page.h>
#include <linux/uaccess.h>
#include <linux/ctype.h>
#include <linux/highmem.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/smp.h>
#include <linux/spinlock.h>
#include <linux/sysctl.h>
#include <linux/timer.h>
#include "edac_device.h"
#include "edac_module.h"
/* lock for the list: 'edac_device_list', manipulation of this list
 * is protected by the 'device_ctls_mutex' lock
 */
static DEFINE_MUTEX(device_ctls_mutex);
static LIST_HEAD(edac_device_list);
#ifdef CONFIG_EDAC_DEBUG
static void edac_device_dump_device(struct edac_device_ctl_info *edac_dev)
{
	edac_dbg(3, "\tedac_dev = %p dev_idx=%d\n",
		 edac_dev, edac_dev->dev_idx);
	edac_dbg(4, "\tedac_dev->edac_check = %p\n", edac_dev->edac_check);
	edac_dbg(3, "\tdev = %p\n", edac_dev->dev);
	edac_dbg(3, "\tmod_name:ctl_name = %s:%s\n",
		 edac_dev->mod_name, edac_dev->ctl_name);
	edac_dbg(3, "\tpvt_info = %p\n\n", edac_dev->pvt_info);
}
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| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 56 | 77.78% | 1 | 50.00% | 
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| Total | 72 | 100.00% | 2 | 100.00% | 
#endif				/* CONFIG_EDAC_DEBUG */
struct edac_device_ctl_info *edac_device_alloc_ctl_info(
	unsigned sz_private,
	char *edac_device_name, unsigned nr_instances,
	char *edac_block_name, unsigned nr_blocks,
	unsigned offset_value,		/* zero, 1, or other based offset */
	struct edac_dev_sysfs_block_attribute *attrib_spec, unsigned nr_attrib,
	int device_index)
{
	struct edac_device_ctl_info *dev_ctl;
	struct edac_device_instance *dev_inst, *inst;
	struct edac_device_block *dev_blk, *blk_p, *blk;
	struct edac_dev_sysfs_block_attribute *dev_attrib, *attrib_p, *attrib;
	unsigned total_size;
	unsigned count;
	unsigned instance, block, attr;
	void *pvt, *p;
	int err;
	edac_dbg(4, "instances=%d blocks=%d\n", nr_instances, nr_blocks);
	/* Calculate the size of memory we need to allocate AND
         * determine the offsets of the various item arrays
         * (instance,block,attrib) from the start of an  allocated structure.
         * We want the alignment of each item  (instance,block,attrib)
         * to be at least as stringent as what the compiler would
         * provide if we could simply hardcode everything into a single struct.
         */
	p = NULL;
	dev_ctl = edac_align_ptr(&p, sizeof(*dev_ctl), 1);
	/* Calc the 'end' offset past end of ONE ctl_info structure
         * which will become the start of the 'instance' array
         */
	dev_inst = edac_align_ptr(&p, sizeof(*dev_inst), nr_instances);
	/* Calc the 'end' offset past the instance array within the ctl_info
         * which will become the start of the block array
         */
	count = nr_instances * nr_blocks;
	dev_blk = edac_align_ptr(&p, sizeof(*dev_blk), count);
	/* Calc the 'end' offset past the dev_blk array
         * which will become the start of the attrib array, if any.
         */
	/* calc how many nr_attrib we need */
	if (nr_attrib > 0)
		count *= nr_attrib;
	dev_attrib = edac_align_ptr(&p, sizeof(*dev_attrib), count);
	/* Calc the 'end' offset past the attributes array */
	pvt = edac_align_ptr(&p, sz_private, 1);
	/* 'pvt' now points to where the private data area is.
         * At this point 'pvt' (like dev_inst,dev_blk and dev_attrib)
         * is baselined at ZERO
         */
	total_size = ((unsigned long)pvt) + sz_private;
	/* Allocate the amount of memory for the set of control structures */
	dev_ctl = kzalloc(total_size, GFP_KERNEL);
	if (dev_ctl == NULL)
		return NULL;
	/* Adjust pointers so they point within the actual memory we
         * just allocated rather than an imaginary chunk of memory
         * located at address 0.
         * 'dev_ctl' points to REAL memory, while the others are
         * ZERO based and thus need to be adjusted to point within
         * the allocated memory.
         */
	dev_inst = (struct edac_device_instance *)
		(((char *)dev_ctl) + ((unsigned long)dev_inst));
	dev_blk = (struct edac_device_block *)
		(((char *)dev_ctl) + ((unsigned long)dev_blk));
	dev_attrib = (struct edac_dev_sysfs_block_attribute *)
		(((char *)dev_ctl) + ((unsigned long)dev_attrib));
	pvt = sz_private ? (((char *)dev_ctl) + ((unsigned long)pvt)) : NULL;
	/* Begin storing the information into the control info structure */
	dev_ctl->dev_idx = device_index;
	dev_ctl->nr_instances = nr_instances;
	dev_ctl->instances = dev_inst;
	dev_ctl->pvt_info = pvt;
	/* Default logging of CEs and UEs */
	dev_ctl->log_ce = 1;
	dev_ctl->log_ue = 1;
	/* Name of this edac device */
	snprintf(dev_ctl->name,sizeof(dev_ctl->name),"%s",edac_device_name);
	edac_dbg(4, "edac_dev=%p next after end=%p\n",
		 dev_ctl, pvt + sz_private);
	/* Initialize every Instance */
	for (instance = 0; instance < nr_instances; instance++) {
		inst = &dev_inst[instance];
		inst->ctl = dev_ctl;
		inst->nr_blocks = nr_blocks;
		blk_p = &dev_blk[instance * nr_blocks];
		inst->blocks = blk_p;
		/* name of this instance */
		snprintf(inst->name, sizeof(inst->name),
			 "%s%u", edac_device_name, instance);
		/* Initialize every block in each instance */
		for (block = 0; block < nr_blocks; block++) {
			blk = &blk_p[block];
			blk->instance = inst;
			snprintf(blk->name, sizeof(blk->name),
				 "%s%d", edac_block_name, block+offset_value);
			edac_dbg(4, "instance=%d inst_p=%p block=#%d block_p=%p name='%s'\n",
				 instance, inst, block, blk, blk->name);
			/* if there are NO attributes OR no attribute pointer
                         * then continue on to next block iteration
                         */
			if ((nr_attrib == 0) || (attrib_spec == NULL))
				continue;
			/* setup the attribute array for this block */
			blk->nr_attribs = nr_attrib;
			attrib_p = &dev_attrib[block*nr_instances*nr_attrib];
			blk->block_attributes = attrib_p;
			edac_dbg(4, "THIS BLOCK_ATTRIB=%p\n",
				 blk->block_attributes);
			/* Initialize every user specified attribute in this
                         * block with the data the caller passed in
                         * Each block gets its own copy of pointers,
                         * and its unique 'value'
                         */
			for (attr = 0; attr < nr_attrib; attr++) {
				attrib = &attrib_p[attr];
				/* populate the unique per attrib
                                 * with the code pointers and info
                                 */
				attrib->attr = attrib_spec[attr].attr;
				attrib->show = attrib_spec[attr].show;
				attrib->store = attrib_spec[attr].store;
				attrib->block = blk;	/* up link */
				edac_dbg(4, "alloc-attrib=%p attrib_name='%s' attrib-spec=%p spec-name=%s\n",
					 attrib, attrib->attr.name,
					 &attrib_spec[attr],
					 attrib_spec[attr].attr.name
					);
			}
		}
	}
	/* 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;
}
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| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 685 | 93.07% | 8 | 72.73% | 
| Mauro Carvalho Chehab | 39 | 5.30% | 2 | 18.18% | 
| Joe Perches | 12 | 1.63% | 1 | 9.09% | 
| Total | 736 | 100.00% | 11 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_alloc_ctl_info);
void edac_device_free_ctl_info(struct edac_device_ctl_info *ctl_info)
{
	edac_device_unregister_sysfs_main_kobj(ctl_info);
}
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| Doug Thompson | 15 | 100.00% | 2 | 100.00% | 
| Total | 15 | 100.00% | 2 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_free_ctl_info);
/*
 * find_edac_device_by_dev
 *      scans the edac_device list for a specific 'struct device *'
 *
 *      lock to be held prior to call:  device_ctls_mutex
 *
 *      Return:
 *              pointer to control structure managing 'dev'
 *              NULL if not found on list
 */
static struct edac_device_ctl_info *find_edac_device_by_dev(struct device *dev)
{
	struct edac_device_ctl_info *edac_dev;
	struct list_head *item;
	edac_dbg(0, "\n");
	list_for_each(item, &edac_device_list) {
		edac_dev = list_entry(item, struct edac_device_ctl_info, link);
		if (edac_dev->dev == dev)
			return edac_dev;
	}
	return NULL;
}
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| Doug Thompson | 61 | 95.31% | 1 | 33.33% | 
| Joe Perches | 2 | 3.12% | 1 | 33.33% | 
| Mauro Carvalho Chehab | 1 | 1.56% | 1 | 33.33% | 
| Total | 64 | 100.00% | 3 | 100.00% | 
/*
 * add_edac_dev_to_global_list
 *      Before calling this function, caller must
 *      assign a unique value to edac_dev->dev_idx.
 *
 *      lock to be held prior to call:  device_ctls_mutex
 *
 *      Return:
 *              0 on success
 *              1 on failure.
 */
static int add_edac_dev_to_global_list(struct edac_device_ctl_info *edac_dev)
{
	struct list_head *item, *insert_before;
	struct edac_device_ctl_info *rover;
	insert_before = &edac_device_list;
	/* Determine if already on the list */
	rover = find_edac_device_by_dev(edac_dev->dev);
	if (unlikely(rover != NULL))
		goto fail0;
	/* Insert in ascending order by 'dev_idx', so find position */
	list_for_each(item, &edac_device_list) {
		rover = list_entry(item, struct edac_device_ctl_info, link);
		if (rover->dev_idx >= edac_dev->dev_idx) {
			if (unlikely(rover->dev_idx == edac_dev->dev_idx))
				goto fail1;
			insert_before = item;
			break;
		}
	}
	list_add_tail_rcu(&edac_dev->link, insert_before);
	return 0;
fail0:
	edac_printk(KERN_WARNING, EDAC_MC,
			"%s (%s) %s %s already assigned %d\n",
			dev_name(rover->dev), edac_dev_name(rover),
			rover->mod_name, rover->ctl_name, rover->dev_idx);
	return 1;
fail1:
	edac_printk(KERN_WARNING, EDAC_MC,
			"bug in low-level driver: attempt to assign\n"
			"    duplicate dev_idx %d in %s()\n", rover->dev_idx,
			__func__);
	return 1;
}
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| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 173 | 97.74% | 2 | 50.00% | 
| Kay Sievers | 3 | 1.69% | 1 | 25.00% | 
| Stephen Rothwell | 1 | 0.56% | 1 | 25.00% | 
| Total | 177 | 100.00% | 4 | 100.00% | 
/*
 * del_edac_device_from_global_list
 */
static void del_edac_device_from_global_list(struct edac_device_ctl_info
						*edac_device)
{
	list_del_rcu(&edac_device->link);
	/* these are for safe removal of devices from global list while
         * NMI handlers may be traversing list
         */
	synchronize_rcu();
	INIT_LIST_HEAD(&edac_device->link);
}
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| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 25 | 80.65% | 1 | 50.00% | 
| Lai Jiangshan | 6 | 19.35% | 1 | 50.00% | 
| Total | 31 | 100.00% | 2 | 100.00% | 
/*
 * edac_device_workq_function
 *      performs the operation scheduled by a workq request
 *
 *      this workq is embedded within an edac_device_ctl_info
 *      structure, that needs to be polled for possible error events.
 *
 *      This operation is to acquire the list mutex lock
 *      (thus preventing insertation or deletion)
 *      and then call the device's poll function IFF this device is
 *      running polled and there is a poll function defined.
 */
static void edac_device_workq_function(struct work_struct *work_req)
{
	struct delayed_work *d_work = to_delayed_work(work_req);
	struct edac_device_ctl_info *edac_dev = to_edac_device_ctl_work(d_work);
	mutex_lock(&device_ctls_mutex);
	/* If we are being removed, bail out immediately */
	if (edac_dev->op_state == OP_OFFLINE) {
		mutex_unlock(&device_ctls_mutex);
		return;
	}
	/* Only poll controllers that are running polled and have a check */
	if ((edac_dev->op_state == OP_RUNNING_POLL) &&
		(edac_dev->edac_check != NULL)) {
			edac_dev->edac_check(edac_dev);
	}
	mutex_unlock(&device_ctls_mutex);
	/* Reschedule the workq for the next time period to start again
         * if the number of msec is for 1 sec, then adjust to the next
         * whole one second to save timers firing all over the period
         * between integral seconds
         */
	if (edac_dev->poll_msec == 1000)
		edac_queue_work(&edac_dev->work, round_jiffies_relative(edac_dev->delay));
	else
		edac_queue_work(&edac_dev->work, edac_dev->delay);
}
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| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 100 | 79.37% | 4 | 40.00% | 
| Harry Ciao | 18 | 14.29% | 1 | 10.00% | 
| Jean Delvare | 3 | 2.38% | 1 | 10.00% | 
| Borislav Petkov | 2 | 1.59% | 1 | 10.00% | 
| Dave Jiang | 1 | 0.79% | 1 | 10.00% | 
| Anton Blanchard | 1 | 0.79% | 1 | 10.00% | 
| David Mackey | 1 | 0.79% | 1 | 10.00% | 
| Total | 126 | 100.00% | 10 | 100.00% | 
/*
 * edac_device_workq_setup
 *      initialize a workq item for this edac_device instance
 *      passing in the new delay period in msec
 */
static void edac_device_workq_setup(struct edac_device_ctl_info *edac_dev,
				    unsigned msec)
{
	edac_dbg(0, "\n");
	/* take the arg 'msec' and set it into the control structure
         * to used in the time period calculation
         * then calc the number of jiffies that represents
         */
	edac_dev->poll_msec = msec;
	edac_dev->delay = msecs_to_jiffies(msec);
	INIT_DELAYED_WORK(&edac_dev->work, edac_device_workq_function);
	/* optimize here for the 1 second case, which will be normal value, to
         * fire ON the 1 second time event. This helps reduce all sorts of
         * timers firing on sub-second basis, while they are happy
         * to fire together on the 1 second exactly
         */
	if (edac_dev->poll_msec == 1000)
		edac_queue_work(&edac_dev->work, round_jiffies_relative(edac_dev->delay));
	else
		edac_queue_work(&edac_dev->work, edac_dev->delay);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 75 | 89.29% | 3 | 33.33% | 
| Borislav Petkov | 3 | 3.57% | 2 | 22.22% | 
| Joe Perches | 2 | 2.38% | 1 | 11.11% | 
| Dave Jiang | 2 | 2.38% | 1 | 11.11% | 
| Anton Blanchard | 1 | 1.19% | 1 | 11.11% | 
| Mauro Carvalho Chehab | 1 | 1.19% | 1 | 11.11% | 
| Total | 84 | 100.00% | 9 | 100.00% | 
/*
 * edac_device_workq_teardown
 *      stop the workq processing on this edac_dev
 */
static void edac_device_workq_teardown(struct edac_device_ctl_info *edac_dev)
{
	if (!edac_dev->edac_check)
		return;
	edac_dev->op_state = OP_OFFLINE;
	edac_stop_work(&edac_dev->work);
}
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| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 17 | 51.52% | 1 | 16.67% | 
| Stephen Boyd | 8 | 24.24% | 1 | 16.67% | 
| Borislav Petkov | 7 | 21.21% | 3 | 50.00% | 
| Dave Jiang | 1 | 3.03% | 1 | 16.67% | 
| Total | 33 | 100.00% | 6 | 100.00% | 
/*
 * edac_device_reset_delay_period
 *
 *      need to stop any outstanding workq queued up at this time
 *      because we will be resetting the sleep time.
 *      Then restart the workq on the new delay
 */
void edac_device_reset_delay_period(struct edac_device_ctl_info *edac_dev,
					unsigned long value)
{
	unsigned long jiffs = msecs_to_jiffies(value);
	if (value == 1000)
		jiffs = round_jiffies_relative(value);
	edac_dev->poll_msec = value;
	edac_dev->delay	    = jiffs;
	edac_mod_work(&edac_dev->work, jiffs);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Borislav Petkov | 32 | 55.17% | 1 | 33.33% | 
| Doug Thompson | 26 | 44.83% | 2 | 66.67% | 
| Total | 58 | 100.00% | 3 | 100.00% | 
int edac_device_alloc_index(void)
{
	static atomic_t device_indexes = ATOMIC_INIT(0);
	return atomic_inc_return(&device_indexes) - 1;
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Harry Ciao | 25 | 100.00% | 1 | 100.00% | 
| Total | 25 | 100.00% | 1 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_alloc_index);
int edac_device_add_device(struct edac_device_ctl_info *edac_dev)
{
	edac_dbg(0, "\n");
#ifdef CONFIG_EDAC_DEBUG
	if (edac_debug_level >= 3)
		edac_device_dump_device(edac_dev);
#endif
	mutex_lock(&device_ctls_mutex);
	if (add_edac_dev_to_global_list(edac_dev))
		goto fail0;
	/* set load time so that error rate can be tracked */
	edac_dev->start_time = jiffies;
	/* create this instance's sysfs entries */
	if (edac_device_create_sysfs(edac_dev)) {
		edac_device_printk(edac_dev, KERN_WARNING,
					"failed to create sysfs device\n");
		goto fail1;
	}
	/* If there IS a check routine, then we are running POLLED */
	if (edac_dev->edac_check != NULL) {
		/* This instance is NOW RUNNING */
		edac_dev->op_state = OP_RUNNING_POLL;
		/*
                 * enable workq processing on this instance,
                 * default = 1000 msec
                 */
		edac_device_workq_setup(edac_dev, 1000);
	} else {
		edac_dev->op_state = OP_RUNNING_INTERRUPT;
	}
	/* Report action taken */
	edac_device_printk(edac_dev, KERN_INFO,
		"Giving out device to module %s controller %s: DEV %s (%s)\n",
		edac_dev->mod_name, edac_dev->ctl_name, edac_dev->dev_name,
		edac_op_state_to_string(edac_dev->op_state));
	mutex_unlock(&device_ctls_mutex);
	return 0;
fail1:
	/* Some error, so remove the entry from the lsit */
	del_edac_device_from_global_list(edac_dev);
fail0:
	mutex_unlock(&device_ctls_mutex);
	return 1;
}
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| Doug Thompson | 160 | 94.12% | 4 | 44.44% | 
| Dave Jiang | 4 | 2.35% | 2 | 22.22% | 
| Robert Richter | 3 | 1.76% | 1 | 11.11% | 
| Joe Perches | 2 | 1.18% | 1 | 11.11% | 
| Mauro Carvalho Chehab | 1 | 0.59% | 1 | 11.11% | 
| Total | 170 | 100.00% | 9 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_add_device);
struct edac_device_ctl_info *edac_device_del_device(struct device *dev)
{
	struct edac_device_ctl_info *edac_dev;
	edac_dbg(0, "\n");
	mutex_lock(&device_ctls_mutex);
	/* Find the structure on the list, if not there, then leave */
	edac_dev = find_edac_device_by_dev(dev);
	if (edac_dev == NULL) {
		mutex_unlock(&device_ctls_mutex);
		return NULL;
	}
	/* mark this instance as OFFLINE */
	edac_dev->op_state = OP_OFFLINE;
	/* deregister from global list */
	del_edac_device_from_global_list(edac_dev);
	mutex_unlock(&device_ctls_mutex);
	/* 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);
	edac_printk(KERN_INFO, EDAC_MC,
		"Removed device %d for %s %s: DEV %s\n",
		edac_dev->dev_idx,
		edac_dev->mod_name, edac_dev->ctl_name, edac_dev_name(edac_dev));
	return edac_dev;
}
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| Doug Thompson | 105 | 91.30% | 4 | 50.00% | 
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| Joe Perches | 2 | 1.74% | 1 | 12.50% | 
| Mauro Carvalho Chehab | 1 | 0.87% | 1 | 12.50% | 
| Stephen Rothwell | 1 | 0.87% | 1 | 12.50% | 
| Total | 115 | 100.00% | 8 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_del_device);
static inline int edac_device_get_log_ce(struct edac_device_ctl_info *edac_dev)
{
	return edac_dev->log_ce;
}
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| Doug Thompson | 17 | 100.00% | 1 | 100.00% | 
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static inline int edac_device_get_log_ue(struct edac_device_ctl_info *edac_dev)
{
	return edac_dev->log_ue;
}
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static inline int edac_device_get_panic_on_ue(struct edac_device_ctl_info
					*edac_dev)
{
	return edac_dev->panic_on_ue;
}
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| Total | 17 | 100.00% | 1 | 100.00% | 
void edac_device_handle_ce(struct edac_device_ctl_info *edac_dev,
			int inst_nr, int block_nr, const char *msg)
{
	struct edac_device_instance *instance;
	struct edac_device_block *block = NULL;
	if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) {
		edac_device_printk(edac_dev, KERN_ERR,
				"INTERNAL ERROR: 'instance' out of range "
				"(%d >= %d)\n", inst_nr,
				edac_dev->nr_instances);
		return;
	}
	instance = edac_dev->instances + inst_nr;
	if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) {
		edac_device_printk(edac_dev, KERN_ERR,
				"INTERNAL ERROR: instance %d 'block' "
				"out of range (%d >= %d)\n",
				inst_nr, block_nr,
				instance->nr_blocks);
		return;
	}
	if (instance->nr_blocks > 0) {
		block = instance->blocks + block_nr;
		block->counters.ce_count++;
	}
	/* Propagate the count up the 'totals' tree */
	instance->counters.ce_count++;
	edac_dev->counters.ce_count++;
	if (edac_device_get_log_ce(edac_dev))
		edac_device_printk(edac_dev, KERN_WARNING,
				"CE: %s instance: %s block: %s '%s'\n",
				edac_dev->ctl_name, instance->name,
				block ? block->name : "N/A", msg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 186 | 99.47% | 3 | 75.00% | 
| Lucas De Marchi | 1 | 0.53% | 1 | 25.00% | 
| Total | 187 | 100.00% | 4 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_handle_ce);
void edac_device_handle_ue(struct edac_device_ctl_info *edac_dev,
			int inst_nr, int block_nr, const char *msg)
{
	struct edac_device_instance *instance;
	struct edac_device_block *block = NULL;
	if ((inst_nr >= edac_dev->nr_instances) || (inst_nr < 0)) {
		edac_device_printk(edac_dev, KERN_ERR,
				"INTERNAL ERROR: 'instance' out of range "
				"(%d >= %d)\n", inst_nr,
				edac_dev->nr_instances);
		return;
	}
	instance = edac_dev->instances + inst_nr;
	if ((block_nr >= instance->nr_blocks) || (block_nr < 0)) {
		edac_device_printk(edac_dev, KERN_ERR,
				"INTERNAL ERROR: instance %d 'block' "
				"out of range (%d >= %d)\n",
				inst_nr, block_nr,
				instance->nr_blocks);
		return;
	}
	if (instance->nr_blocks > 0) {
		block = instance->blocks + block_nr;
		block->counters.ue_count++;
	}
	/* Propagate the count up the 'totals' tree */
	instance->counters.ue_count++;
	edac_dev->counters.ue_count++;
	if (edac_device_get_log_ue(edac_dev))
		edac_device_printk(edac_dev, KERN_EMERG,
				"UE: %s instance: %s block: %s '%s'\n",
				edac_dev->ctl_name, instance->name,
				block ? block->name : "N/A", msg);
	if (edac_device_get_panic_on_ue(edac_dev))
		panic("EDAC %s: UE instance: %s block %s '%s'\n",
			edac_dev->ctl_name, instance->name,
			block ? block->name : "N/A", msg);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 216 | 99.54% | 3 | 75.00% | 
| Lucas De Marchi | 1 | 0.46% | 1 | 25.00% | 
| Total | 217 | 100.00% | 4 | 100.00% | 
EXPORT_SYMBOL_GPL(edac_device_handle_ue);
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp | 
| Doug Thompson | 2033 | 89.76% | 12 | 34.29% | 
| Harry Ciao | 54 | 2.38% | 2 | 5.71% | 
| Mauro Carvalho Chehab | 53 | 2.34% | 3 | 8.57% | 
| Borislav Petkov | 44 | 1.94% | 3 | 8.57% | 
| Joe Perches | 36 | 1.59% | 1 | 2.86% | 
| Dave Jiang | 10 | 0.44% | 2 | 5.71% | 
| Stephen Boyd | 8 | 0.35% | 1 | 2.86% | 
| Lai Jiangshan | 7 | 0.31% | 1 | 2.86% | 
| Kay Sievers | 3 | 0.13% | 1 | 2.86% | 
| Robert Richter | 3 | 0.13% | 1 | 2.86% | 
| Jean Delvare | 3 | 0.13% | 1 | 2.86% | 
| Robert P. J. Day | 2 | 0.09% | 1 | 2.86% | 
| Anton Blanchard | 2 | 0.09% | 1 | 2.86% | 
| Lucas De Marchi | 2 | 0.09% | 1 | 2.86% | 
| Stephen Rothwell | 2 | 0.09% | 1 | 2.86% | 
| David Mackey | 1 | 0.04% | 1 | 2.86% | 
| Jiri Kosina | 1 | 0.04% | 1 | 2.86% | 
| Linus Torvalds | 1 | 0.04% | 1 | 2.86% | 
| Total | 2265 | 100.00% | 35 | 100.00% | 
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