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@paulgortmaker @gregkh
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// SPDX-License-Identifier: GPL-2.0
#include <linux/cpufreq.h>
#include <linux/fs.h>
#include <linux/init.h>
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
__weak void arch_freq_prepare_all(void)
extern const struct seq_operations cpuinfo_op;
static int cpuinfo_open(struct inode *inode, struct file *file)
return seq_open(file, &cpuinfo_op);
static const struct file_operations proc_cpuinfo_operations = {
.open = cpuinfo_open,
.read = seq_read,
.llseek = seq_lseek,
.release = seq_release,
static int __init proc_cpuinfo_init(void)
proc_create("cpuinfo", 0, NULL, &proc_cpuinfo_operations);
return 0;
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