[PATCH] cpufreq: stats: Convert to use sysfs_emit_at() API
From: ye.xingchen
Date: Tue Dec 06 2022 - 03:15:46 EST
From: ye xingchen <ye.xingchen@xxxxxxxxxx>
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@xxxxxxxxxx>
---
drivers/cpufreq/cpufreq_stats.c | 16 +++++++---------
1 file changed, 7 insertions(+), 9 deletions(-)
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 1570d6f3e75d..55c7ffd37d1c 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -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) {
--
2.25.1