swh:1:snp:49cd9498d6cccc5e78252c27dcb645bcf7bf0c91
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Tip revision: c6935931c1894ff857616ff8549b61236a19148f authored by Linus Torvalds on 04 September 2016, 21:31:46 UTC
Linux 4.8-rc5
Tip revision: c693593
cpu.c
#include <stdio.h>

#include "cpu.h"
#include "fs/fs.h"

int cpu__get_max_freq(unsigned long long *freq)
{
	char entry[PATH_MAX];
	int cpu;

	if (sysfs__read_int("devices/system/cpu/online", &cpu) < 0)
		return -1;

	snprintf(entry, sizeof(entry),
		 "devices/system/cpu/cpu%d/cpufreq/cpuinfo_max_freq", cpu);

	return sysfs__read_ull(entry, freq);
}
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