1
2
3
4
5#include <linux/init.h>
6#include <linux/kernel.h>
7#include <linux/moduleparam.h>
8#include <acpi/acpi_drivers.h>
9
10#define _COMPONENT ACPI_SYSTEM_COMPONENT
11ACPI_MODULE_NAME("sysfs");
12
13#define PREFIX "ACPI: "
14
15#ifdef CONFIG_ACPI_DEBUG
16
17
18
19
20
21
22
23
24
25
26struct acpi_dlayer {
27 const char *name;
28 unsigned long value;
29};
30struct acpi_dlevel {
31 const char *name;
32 unsigned long value;
33};
34#define ACPI_DEBUG_INIT(v) { .name = #v, .value = v }
35
36static const struct acpi_dlayer acpi_debug_layers[] = {
37 ACPI_DEBUG_INIT(ACPI_UTILITIES),
38 ACPI_DEBUG_INIT(ACPI_HARDWARE),
39 ACPI_DEBUG_INIT(ACPI_EVENTS),
40 ACPI_DEBUG_INIT(ACPI_TABLES),
41 ACPI_DEBUG_INIT(ACPI_NAMESPACE),
42 ACPI_DEBUG_INIT(ACPI_PARSER),
43 ACPI_DEBUG_INIT(ACPI_DISPATCHER),
44 ACPI_DEBUG_INIT(ACPI_EXECUTER),
45 ACPI_DEBUG_INIT(ACPI_RESOURCES),
46 ACPI_DEBUG_INIT(ACPI_CA_DEBUGGER),
47 ACPI_DEBUG_INIT(ACPI_OS_SERVICES),
48 ACPI_DEBUG_INIT(ACPI_CA_DISASSEMBLER),
49 ACPI_DEBUG_INIT(ACPI_COMPILER),
50 ACPI_DEBUG_INIT(ACPI_TOOLS),
51
52 ACPI_DEBUG_INIT(ACPI_BUS_COMPONENT),
53 ACPI_DEBUG_INIT(ACPI_AC_COMPONENT),
54 ACPI_DEBUG_INIT(ACPI_BATTERY_COMPONENT),
55 ACPI_DEBUG_INIT(ACPI_BUTTON_COMPONENT),
56 ACPI_DEBUG_INIT(ACPI_SBS_COMPONENT),
57 ACPI_DEBUG_INIT(ACPI_FAN_COMPONENT),
58 ACPI_DEBUG_INIT(ACPI_PCI_COMPONENT),
59 ACPI_DEBUG_INIT(ACPI_POWER_COMPONENT),
60 ACPI_DEBUG_INIT(ACPI_CONTAINER_COMPONENT),
61 ACPI_DEBUG_INIT(ACPI_SYSTEM_COMPONENT),
62 ACPI_DEBUG_INIT(ACPI_THERMAL_COMPONENT),
63 ACPI_DEBUG_INIT(ACPI_MEMORY_DEVICE_COMPONENT),
64 ACPI_DEBUG_INIT(ACPI_VIDEO_COMPONENT),
65 ACPI_DEBUG_INIT(ACPI_PROCESSOR_COMPONENT),
66};
67
68static const struct acpi_dlevel acpi_debug_levels[] = {
69 ACPI_DEBUG_INIT(ACPI_LV_INIT),
70 ACPI_DEBUG_INIT(ACPI_LV_DEBUG_OBJECT),
71 ACPI_DEBUG_INIT(ACPI_LV_INFO),
72
73 ACPI_DEBUG_INIT(ACPI_LV_INIT_NAMES),
74 ACPI_DEBUG_INIT(ACPI_LV_PARSE),
75 ACPI_DEBUG_INIT(ACPI_LV_LOAD),
76 ACPI_DEBUG_INIT(ACPI_LV_DISPATCH),
77 ACPI_DEBUG_INIT(ACPI_LV_EXEC),
78 ACPI_DEBUG_INIT(ACPI_LV_NAMES),
79 ACPI_DEBUG_INIT(ACPI_LV_OPREGION),
80 ACPI_DEBUG_INIT(ACPI_LV_BFIELD),
81 ACPI_DEBUG_INIT(ACPI_LV_TABLES),
82 ACPI_DEBUG_INIT(ACPI_LV_VALUES),
83 ACPI_DEBUG_INIT(ACPI_LV_OBJECTS),
84 ACPI_DEBUG_INIT(ACPI_LV_RESOURCES),
85 ACPI_DEBUG_INIT(ACPI_LV_USER_REQUESTS),
86 ACPI_DEBUG_INIT(ACPI_LV_PACKAGE),
87
88 ACPI_DEBUG_INIT(ACPI_LV_ALLOCATIONS),
89 ACPI_DEBUG_INIT(ACPI_LV_FUNCTIONS),
90 ACPI_DEBUG_INIT(ACPI_LV_OPTIMIZATIONS),
91
92 ACPI_DEBUG_INIT(ACPI_LV_MUTEX),
93 ACPI_DEBUG_INIT(ACPI_LV_THREADS),
94 ACPI_DEBUG_INIT(ACPI_LV_IO),
95 ACPI_DEBUG_INIT(ACPI_LV_INTERRUPTS),
96
97 ACPI_DEBUG_INIT(ACPI_LV_AML_DISASSEMBLE),
98 ACPI_DEBUG_INIT(ACPI_LV_VERBOSE_INFO),
99 ACPI_DEBUG_INIT(ACPI_LV_FULL_TABLES),
100 ACPI_DEBUG_INIT(ACPI_LV_EVENTS),
101};
102
103static int param_get_debug_layer(char *buffer, const struct kernel_param *kp)
104{
105 int result = 0;
106 int i;
107
108 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
109
110 for (i = 0; i < ARRAY_SIZE(acpi_debug_layers); i++) {
111 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
112 acpi_debug_layers[i].name,
113 acpi_debug_layers[i].value,
114 (acpi_dbg_layer & acpi_debug_layers[i].value)
115 ? '*' : ' ');
116 }
117 result +=
118 sprintf(buffer + result, "%-25s\t0x%08X [%c]\n", "ACPI_ALL_DRIVERS",
119 ACPI_ALL_DRIVERS,
120 (acpi_dbg_layer & ACPI_ALL_DRIVERS) ==
121 ACPI_ALL_DRIVERS ? '*' : (acpi_dbg_layer & ACPI_ALL_DRIVERS)
122 == 0 ? ' ' : '-');
123 result +=
124 sprintf(buffer + result,
125 "--\ndebug_layer = 0x%08X ( * = enabled)\n",
126 acpi_dbg_layer);
127
128 return result;
129}
130
131static int param_get_debug_level(char *buffer, const struct kernel_param *kp)
132{
133 int result = 0;
134 int i;
135
136 result = sprintf(buffer, "%-25s\tHex SET\n", "Description");
137
138 for (i = 0; i < ARRAY_SIZE(acpi_debug_levels); i++) {
139 result += sprintf(buffer + result, "%-25s\t0x%08lX [%c]\n",
140 acpi_debug_levels[i].name,
141 acpi_debug_levels[i].value,
142 (acpi_dbg_level & acpi_debug_levels[i].value)
143 ? '*' : ' ');
144 }
145 result +=
146 sprintf(buffer + result, "--\ndebug_level = 0x%08X (* = enabled)\n",
147 acpi_dbg_level);
148
149 return result;
150}
151
152static struct kernel_param_ops param_ops_debug_layer = {
153 .set = param_set_uint,
154 .get = param_get_debug_layer,
155};
156
157static struct kernel_param_ops param_ops_debug_level = {
158 .set = param_set_uint,
159 .get = param_get_debug_level,
160};
161
162module_param_cb(debug_layer, ¶m_ops_debug_layer, &acpi_dbg_layer, 0644);
163module_param_cb(debug_level, ¶m_ops_debug_level, &acpi_dbg_level, 0644);
164
165static char trace_method_name[6];
166module_param_string(trace_method_name, trace_method_name, 6, 0644);
167static unsigned int trace_debug_layer;
168module_param(trace_debug_layer, uint, 0644);
169static unsigned int trace_debug_level;
170module_param(trace_debug_level, uint, 0644);
171
172static int param_set_trace_state(const char *val, struct kernel_param *kp)
173{
174 int result = 0;
175
176 if (!strncmp(val, "enable", strlen("enable") - 1)) {
177 result = acpi_debug_trace(trace_method_name, trace_debug_level,
178 trace_debug_layer, 0);
179 if (result)
180 result = -EBUSY;
181 goto exit;
182 }
183
184 if (!strncmp(val, "disable", strlen("disable") - 1)) {
185 int name = 0;
186 result = acpi_debug_trace((char *)&name, trace_debug_level,
187 trace_debug_layer, 0);
188 if (result)
189 result = -EBUSY;
190 goto exit;
191 }
192
193 if (!strncmp(val, "1", 1)) {
194 result = acpi_debug_trace(trace_method_name, trace_debug_level,
195 trace_debug_layer, 1);
196 if (result)
197 result = -EBUSY;
198 goto exit;
199 }
200
201 result = -EINVAL;
202exit:
203 return result;
204}
205
206static int param_get_trace_state(char *buffer, struct kernel_param *kp)
207{
208 if (!acpi_gbl_trace_method_name)
209 return sprintf(buffer, "disable");
210 else {
211 if (acpi_gbl_trace_flags & 1)
212 return sprintf(buffer, "1");
213 else
214 return sprintf(buffer, "enable");
215 }
216 return 0;
217}
218
219module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
220 NULL, 0644);
221#endif
222
223
224static int param_get_acpica_version(char *buffer, struct kernel_param *kp)
225{
226 int result;
227
228 result = sprintf(buffer, "%x", ACPI_CA_VERSION);
229
230 return result;
231}
232
233module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
234
235
236
237
238
239
240
241static LIST_HEAD(acpi_table_attr_list);
242static struct kobject *tables_kobj;
243static struct kobject *dynamic_tables_kobj;
244
245struct acpi_table_attr {
246 struct bin_attribute attr;
247 char name[8];
248 int instance;
249 struct list_head node;
250};
251
252static ssize_t acpi_table_show(struct file *filp, struct kobject *kobj,
253 struct bin_attribute *bin_attr, char *buf,
254 loff_t offset, size_t count)
255{
256 struct acpi_table_attr *table_attr =
257 container_of(bin_attr, struct acpi_table_attr, attr);
258 struct acpi_table_header *table_header = NULL;
259 acpi_status status;
260 char name[ACPI_NAME_SIZE];
261
262 if (strncmp(table_attr->name, "NULL", 4))
263 memcpy(name, table_attr->name, ACPI_NAME_SIZE);
264 else
265 memcpy(name, "\0\0\0\0", 4);
266
267 status = acpi_get_table(name, table_attr->instance, &table_header);
268 if (ACPI_FAILURE(status))
269 return -ENODEV;
270
271 return memory_read_from_buffer(buf, count, &offset,
272 table_header, table_header->length);
273}
274
275static void acpi_table_attr_init(struct acpi_table_attr *table_attr,
276 struct acpi_table_header *table_header)
277{
278 struct acpi_table_header *header = NULL;
279 struct acpi_table_attr *attr = NULL;
280
281 sysfs_attr_init(&table_attr->attr.attr);
282 if (table_header->signature[0] != '\0')
283 memcpy(table_attr->name, table_header->signature,
284 ACPI_NAME_SIZE);
285 else
286 memcpy(table_attr->name, "NULL", 4);
287
288 list_for_each_entry(attr, &acpi_table_attr_list, node) {
289 if (!memcmp(table_attr->name, attr->name, ACPI_NAME_SIZE))
290 if (table_attr->instance < attr->instance)
291 table_attr->instance = attr->instance;
292 }
293 table_attr->instance++;
294
295 if (table_attr->instance > 1 || (table_attr->instance == 1 &&
296 !acpi_get_table
297 (table_header->signature, 2, &header)))
298 sprintf(table_attr->name + ACPI_NAME_SIZE, "%d",
299 table_attr->instance);
300
301 table_attr->attr.size = 0;
302 table_attr->attr.read = acpi_table_show;
303 table_attr->attr.attr.name = table_attr->name;
304 table_attr->attr.attr.mode = 0400;
305
306 return;
307}
308
309static acpi_status
310acpi_sysfs_table_handler(u32 event, void *table, void *context)
311{
312 struct acpi_table_attr *table_attr;
313
314 switch (event) {
315 case ACPI_TABLE_EVENT_LOAD:
316 table_attr =
317 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
318 if (!table_attr)
319 return AE_NO_MEMORY;
320
321 acpi_table_attr_init(table_attr, table);
322 if (sysfs_create_bin_file(dynamic_tables_kobj,
323 &table_attr->attr)) {
324 kfree(table_attr);
325 return AE_ERROR;
326 } else
327 list_add_tail(&table_attr->node, &acpi_table_attr_list);
328 break;
329 case ACPI_TABLE_EVENT_UNLOAD:
330
331
332
333
334
335 break;
336 default:
337 return AE_BAD_PARAMETER;
338 }
339 return AE_OK;
340}
341
342static int acpi_tables_sysfs_init(void)
343{
344 struct acpi_table_attr *table_attr;
345 struct acpi_table_header *table_header = NULL;
346 int table_index = 0;
347 int result;
348
349 tables_kobj = kobject_create_and_add("tables", acpi_kobj);
350 if (!tables_kobj)
351 goto err;
352
353 dynamic_tables_kobj = kobject_create_and_add("dynamic", tables_kobj);
354 if (!dynamic_tables_kobj)
355 goto err_dynamic_tables;
356
357 do {
358 result = acpi_get_table_by_index(table_index, &table_header);
359 if (!result) {
360 table_index++;
361 table_attr = NULL;
362 table_attr =
363 kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL);
364 if (!table_attr)
365 return -ENOMEM;
366
367 acpi_table_attr_init(table_attr, table_header);
368 result =
369 sysfs_create_bin_file(tables_kobj,
370 &table_attr->attr);
371 if (result) {
372 kfree(table_attr);
373 return result;
374 } else
375 list_add_tail(&table_attr->node,
376 &acpi_table_attr_list);
377 }
378 } while (!result);
379 kobject_uevent(tables_kobj, KOBJ_ADD);
380 kobject_uevent(dynamic_tables_kobj, KOBJ_ADD);
381 result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL);
382
383 return result == AE_OK ? 0 : -EINVAL;
384err_dynamic_tables:
385 kobject_put(tables_kobj);
386err:
387 return -ENOMEM;
388}
389
390
391
392
393
394
395u32 acpi_irq_handled;
396u32 acpi_irq_not_handled;
397
398#define COUNT_GPE 0
399#define COUNT_SCI 1
400#define COUNT_SCI_NOT 2
401#define COUNT_ERROR 3
402#define NUM_COUNTERS_EXTRA 4
403
404struct event_counter {
405 u32 count;
406 u32 flags;
407};
408
409static struct event_counter *all_counters;
410static u32 num_gpes;
411static u32 num_counters;
412static struct attribute **all_attrs;
413static u32 acpi_gpe_count;
414
415static struct attribute_group interrupt_stats_attr_group = {
416 .name = "interrupts",
417};
418
419static struct kobj_attribute *counter_attrs;
420
421static void delete_gpe_attr_array(void)
422{
423 struct event_counter *tmp = all_counters;
424
425 all_counters = NULL;
426 kfree(tmp);
427
428 if (counter_attrs) {
429 int i;
430
431 for (i = 0; i < num_gpes; i++)
432 kfree(counter_attrs[i].attr.name);
433
434 kfree(counter_attrs);
435 }
436 kfree(all_attrs);
437
438 return;
439}
440
441static void gpe_count(u32 gpe_number)
442{
443 acpi_gpe_count++;
444
445 if (!all_counters)
446 return;
447
448 if (gpe_number < num_gpes)
449 all_counters[gpe_number].count++;
450 else
451 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
452 COUNT_ERROR].count++;
453
454 return;
455}
456
457static void fixed_event_count(u32 event_number)
458{
459 if (!all_counters)
460 return;
461
462 if (event_number < ACPI_NUM_FIXED_EVENTS)
463 all_counters[num_gpes + event_number].count++;
464 else
465 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS +
466 COUNT_ERROR].count++;
467
468 return;
469}
470
471static void acpi_gbl_event_handler(u32 event_type, acpi_handle device,
472 u32 event_number, void *context)
473{
474 if (event_type == ACPI_EVENT_TYPE_GPE)
475 gpe_count(event_number);
476
477 if (event_type == ACPI_EVENT_TYPE_FIXED)
478 fixed_event_count(event_number);
479}
480
481static int get_status(u32 index, acpi_event_status *status,
482 acpi_handle *handle)
483{
484 int result = 0;
485
486 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
487 goto end;
488
489 if (index < num_gpes) {
490 result = acpi_get_gpe_device(index, handle);
491 if (result) {
492 ACPI_EXCEPTION((AE_INFO, AE_NOT_FOUND,
493 "Invalid GPE 0x%x\n", index));
494 goto end;
495 }
496 result = acpi_get_gpe_status(*handle, index, status);
497 } else if (index < (num_gpes + ACPI_NUM_FIXED_EVENTS))
498 result = acpi_get_event_status(index - num_gpes, status);
499
500end:
501 return result;
502}
503
504static ssize_t counter_show(struct kobject *kobj,
505 struct kobj_attribute *attr, char *buf)
506{
507 int index = attr - counter_attrs;
508 int size;
509 acpi_handle handle;
510 acpi_event_status status;
511 int result = 0;
512
513 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI].count =
514 acpi_irq_handled;
515 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT].count =
516 acpi_irq_not_handled;
517 all_counters[num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE].count =
518 acpi_gpe_count;
519 size = sprintf(buf, "%8d", all_counters[index].count);
520
521
522 if (index >= num_gpes + ACPI_NUM_FIXED_EVENTS)
523 goto end;
524
525 result = get_status(index, &status, &handle);
526 if (result)
527 goto end;
528
529 if (!(status & ACPI_EVENT_FLAG_HANDLE))
530 size += sprintf(buf + size, " invalid");
531 else if (status & ACPI_EVENT_FLAG_ENABLED)
532 size += sprintf(buf + size, " enabled");
533 else if (status & ACPI_EVENT_FLAG_WAKE_ENABLED)
534 size += sprintf(buf + size, " wake_enabled");
535 else
536 size += sprintf(buf + size, " disabled");
537
538end:
539 size += sprintf(buf + size, "\n");
540 return result ? result : size;
541}
542
543
544
545
546
547
548static ssize_t counter_set(struct kobject *kobj,
549 struct kobj_attribute *attr, const char *buf,
550 size_t size)
551{
552 int index = attr - counter_attrs;
553 acpi_event_status status;
554 acpi_handle handle;
555 int result = 0;
556
557 if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) {
558 int i;
559 for (i = 0; i < num_counters; ++i)
560 all_counters[i].count = 0;
561 acpi_gpe_count = 0;
562 acpi_irq_handled = 0;
563 acpi_irq_not_handled = 0;
564 goto end;
565 }
566
567
568 result = get_status(index, &status, &handle);
569 if (result)
570 goto end;
571
572 if (!(status & ACPI_EVENT_FLAG_HANDLE)) {
573 printk(KERN_WARNING PREFIX
574 "Can not change Invalid GPE/Fixed Event status\n");
575 return -EINVAL;
576 }
577
578 if (index < num_gpes) {
579 if (!strcmp(buf, "disable\n") &&
580 (status & ACPI_EVENT_FLAG_ENABLED))
581 result = acpi_disable_gpe(handle, index);
582 else if (!strcmp(buf, "enable\n") &&
583 !(status & ACPI_EVENT_FLAG_ENABLED))
584 result = acpi_enable_gpe(handle, index);
585 else if (!strcmp(buf, "clear\n") &&
586 (status & ACPI_EVENT_FLAG_SET))
587 result = acpi_clear_gpe(handle, index);
588 else
589 all_counters[index].count = strtoul(buf, NULL, 0);
590 } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) {
591 int event = index - num_gpes;
592 if (!strcmp(buf, "disable\n") &&
593 (status & ACPI_EVENT_FLAG_ENABLED))
594 result = acpi_disable_event(event, ACPI_NOT_ISR);
595 else if (!strcmp(buf, "enable\n") &&
596 !(status & ACPI_EVENT_FLAG_ENABLED))
597 result = acpi_enable_event(event, ACPI_NOT_ISR);
598 else if (!strcmp(buf, "clear\n") &&
599 (status & ACPI_EVENT_FLAG_SET))
600 result = acpi_clear_event(event);
601 else
602 all_counters[index].count = strtoul(buf, NULL, 0);
603 } else
604 all_counters[index].count = strtoul(buf, NULL, 0);
605
606 if (ACPI_FAILURE(result))
607 result = -EINVAL;
608end:
609 return result ? result : size;
610}
611
612void acpi_irq_stats_init(void)
613{
614 acpi_status status;
615 int i;
616
617 if (all_counters)
618 return;
619
620 num_gpes = acpi_current_gpe_count;
621 num_counters = num_gpes + ACPI_NUM_FIXED_EVENTS + NUM_COUNTERS_EXTRA;
622
623 all_attrs = kzalloc(sizeof(struct attribute *) * (num_counters + 1),
624 GFP_KERNEL);
625 if (all_attrs == NULL)
626 return;
627
628 all_counters = kzalloc(sizeof(struct event_counter) * (num_counters),
629 GFP_KERNEL);
630 if (all_counters == NULL)
631 goto fail;
632
633 status = acpi_install_global_event_handler(acpi_gbl_event_handler, NULL);
634 if (ACPI_FAILURE(status))
635 goto fail;
636
637 counter_attrs = kzalloc(sizeof(struct kobj_attribute) * (num_counters),
638 GFP_KERNEL);
639 if (counter_attrs == NULL)
640 goto fail;
641
642 for (i = 0; i < num_counters; ++i) {
643 char buffer[12];
644 char *name;
645
646 if (i < num_gpes)
647 sprintf(buffer, "gpe%02X", i);
648 else if (i == num_gpes + ACPI_EVENT_PMTIMER)
649 sprintf(buffer, "ff_pmtimer");
650 else if (i == num_gpes + ACPI_EVENT_GLOBAL)
651 sprintf(buffer, "ff_gbl_lock");
652 else if (i == num_gpes + ACPI_EVENT_POWER_BUTTON)
653 sprintf(buffer, "ff_pwr_btn");
654 else if (i == num_gpes + ACPI_EVENT_SLEEP_BUTTON)
655 sprintf(buffer, "ff_slp_btn");
656 else if (i == num_gpes + ACPI_EVENT_RTC)
657 sprintf(buffer, "ff_rt_clk");
658 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_GPE)
659 sprintf(buffer, "gpe_all");
660 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI)
661 sprintf(buffer, "sci");
662 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI_NOT)
663 sprintf(buffer, "sci_not");
664 else if (i == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_ERROR)
665 sprintf(buffer, "error");
666 else
667 sprintf(buffer, "bug%02X", i);
668
669 name = kzalloc(strlen(buffer) + 1, GFP_KERNEL);
670 if (name == NULL)
671 goto fail;
672 strncpy(name, buffer, strlen(buffer) + 1);
673
674 sysfs_attr_init(&counter_attrs[i].attr);
675 counter_attrs[i].attr.name = name;
676 counter_attrs[i].attr.mode = 0644;
677 counter_attrs[i].show = counter_show;
678 counter_attrs[i].store = counter_set;
679
680 all_attrs[i] = &counter_attrs[i].attr;
681 }
682
683 interrupt_stats_attr_group.attrs = all_attrs;
684 if (!sysfs_create_group(acpi_kobj, &interrupt_stats_attr_group))
685 return;
686
687fail:
688 delete_gpe_attr_array();
689 return;
690}
691
692static void __exit interrupt_stats_exit(void)
693{
694 sysfs_remove_group(acpi_kobj, &interrupt_stats_attr_group);
695
696 delete_gpe_attr_array();
697
698 return;
699}
700
701int __init acpi_sysfs_init(void)
702{
703 int result;
704
705 result = acpi_tables_sysfs_init();
706
707 return result;
708}
709
