1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/fs.h>
 3#include <linux/init.h>
 4#include <linux/interrupt.h>
 5#include <linux/irqnr.h>
 6#include <linux/proc_fs.h>
 7#include <linux/seq_file.h>
 8
 9/*
10 * /proc/interrupts
11 */
12static void *int_seq_start(struct seq_file *f, loff_t *pos)
13{
14	return (*pos <= nr_irqs) ? pos : NULL;
15}
16
17static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
18{
19	(*pos)++;
20	if (*pos > nr_irqs)
21		return NULL;
22	return pos;
23}
24
25static void int_seq_stop(struct seq_file *f, void *v)
26{
27	/* Nothing to do */
28}
29
30static const struct seq_operations int_seq_ops = {
31	.start = int_seq_start,
32	.next  = int_seq_next,
33	.stop  = int_seq_stop,
34	.show  = show_interrupts
35};
36
 
 
 
 
 
 
 
 
 
 
 
 
37static int __init proc_interrupts_init(void)
38{
39	proc_create_seq("interrupts", 0, NULL, &int_seq_ops);
40	return 0;
41}
42fs_initcall(proc_interrupts_init);

 1// SPDX-License-Identifier: GPL-2.0
 2#include <linux/fs.h>
 3#include <linux/init.h>
 4#include <linux/interrupt.h>
 5#include <linux/irqnr.h>
 6#include <linux/proc_fs.h>
 7#include <linux/seq_file.h>
 8
 9/*
10 * /proc/interrupts
11 */
12static void *int_seq_start(struct seq_file *f, loff_t *pos)
13{
14	return (*pos <= nr_irqs) ? pos : NULL;
15}
16
17static void *int_seq_next(struct seq_file *f, void *v, loff_t *pos)
18{
19	(*pos)++;
20	if (*pos > nr_irqs)
21		return NULL;
22	return pos;
23}
24
25static void int_seq_stop(struct seq_file *f, void *v)
26{
27	/* Nothing to do */
28}
29
30static const struct seq_operations int_seq_ops = {
31	.start = int_seq_start,
32	.next  = int_seq_next,
33	.stop  = int_seq_stop,
34	.show  = show_interrupts
35};
36
37static int interrupts_open(struct inode *inode, struct file *filp)
38{
39	return seq_open(filp, &int_seq_ops);
40}
41
42static const struct file_operations proc_interrupts_operations = {
43	.open		= interrupts_open,
44	.read		= seq_read,
45	.llseek		= seq_lseek,
46	.release	= seq_release,
47};
48
49static int __init proc_interrupts_init(void)
50{
51	proc_create("interrupts", 0, NULL, &proc_interrupts_operations);
52	return 0;
53}
54fs_initcall(proc_interrupts_init);