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cpufreq: stats: Convert to use sysfs_emit_at() API

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Follow the advice of the Documentation/filesystems/sysfs.rst and show()
should only use sysfs_emit() or sysfs_emit_at() when formatting the
value to be returned to user space.

Signed-off-by: ye xingchen <ye.xingchen@zte.com.cn>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
ye xingchen 2022-12-06 16:15:22 +08:00 committed by Rafael J. Wysocki
parent 442046328f
commit 7ed40bcf8a
1 changed files with 7 additions and 9 deletions
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16
drivers/cpufreq/cpufreq_stats.c
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@ -128,25 +128,23 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
ssize_t len = 0;
int i, j, count;
len += scnprintf(buf + len, PAGE_SIZE - len, " From : To\n");
len += scnprintf(buf + len, PAGE_SIZE - len, " : ");
len += sysfs_emit_at(buf, len, " From : To\n");
len += sysfs_emit_at(buf, len, " : ");
for (i = 0; i < stats->state_num; i++) {
if (len >= PAGE_SIZE)
break;
len += scnprintf(buf + len, PAGE_SIZE - len, "%9u ",
stats->freq_table[i]);
len += sysfs_emit_at(buf, len, "%9u ", stats->freq_table[i]);
}
if (len >= PAGE_SIZE)
return PAGE_SIZE;
len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
len += sysfs_emit_at(buf, len, "\n");
for (i = 0; i < stats->state_num; i++) {
if (len >= PAGE_SIZE)
break;
len += scnprintf(buf + len, PAGE_SIZE - len, "%9u: ",
stats->freq_table[i]);
len += sysfs_emit_at(buf, len, "%9u: ", stats->freq_table[i]);
for (j = 0; j < stats->state_num; j++) {
if (len >= PAGE_SIZE)
@ -157,11 +155,11 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
else
count = stats->trans_table[i * stats->max_state + j];
len += scnprintf(buf + len, PAGE_SIZE - len, "%9u ", count);
len += sysfs_emit_at(buf, len, "%9u ", count);
}
if (len >= PAGE_SIZE)
break;
len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
len += sysfs_emit_at(buf, len, "\n");
}
if (len >= PAGE_SIZE) {