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cpufreq: Optimize cpufreq_show_cpus()

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Instead of specially adding a space for each CPU, except the first one,
lets add space for each of them and remove it at the end.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Viresh Kumar 2022-05-26 17:21:19 +05:30 committed by Rafael J. Wysocki
parent b13baccc38
commit 336e51283a
1 changed files with 5 additions and 3 deletions
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8
drivers/cpufreq/cpufreq.c
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@ -843,12 +843,14 @@ ssize_t cpufreq_show_cpus(const struct cpumask *mask, char *buf)
unsigned int cpu; unsigned int cpu;
for_each_cpu(cpu, mask) { for_each_cpu(cpu, mask) {
if (i) i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u ", cpu);
i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), " ");
i += scnprintf(&buf[i], (PAGE_SIZE - i - 2), "%u", cpu);
if (i >= (PAGE_SIZE - 5)) if (i >= (PAGE_SIZE - 5))
break; break;
} }
/* Remove the extra space at the end */
i--;
i += sprintf(&buf[i], "\n"); i += sprintf(&buf[i], "\n");
return i; return i;
} }