From: Ruchi Kandoi <kandoiruchi@google.com>
Date: Tue, 21 Oct 2014 20:55:04 +0000 (-0700)
Subject: cpufreq: Avoid using global variable total_cpus
X-Git-Tag: firefly_0821_release~4090^2~161
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=13224a7d4e4e4ac6ade52deec32e9f9c28533659;p=firefly-linux-kernel-4.4.55.git

cpufreq: Avoid using global variable total_cpus

The change is to compile on kernels where cpufreq stats are compiled as
a module (CONFIG_CPU_FREQ_STAT=m), because total_cpus is not exported for
module use.

Reported-By: Emilio López <elopez93@gmail.com>
Signed-off-by: Ruchi Kandoi <kandoiruchi@google.com>
Change-Id: I4f3c74f0fac5e8d9449655b26bf3b407b0fe4290
---

diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index 7a2bcac3ad7f..d811f5d4b32b 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -282,19 +282,19 @@ put_ref:
 
 static void cpufreq_allstats_free(void)
 {
-	int i;
+	int cpu;
 	struct all_cpufreq_stats *all_stat;
 
 	sysfs_remove_file(cpufreq_global_kobject,
 						&_attr_all_time_in_state.attr);
 
-	for (i = 0; i < total_cpus; i++) {
-		all_stat = per_cpu(all_cpufreq_stats, i);
+	for_each_possible_cpu(cpu) {
+		all_stat = per_cpu(all_cpufreq_stats, cpu);
 		if (!all_stat)
 			continue;
 		kfree(all_stat->time_in_state);
 		kfree(all_stat);
-		per_cpu(all_cpufreq_stats, i) = NULL;
+		per_cpu(all_cpufreq_stats, cpu) = NULL;
 	}
 	if (all_freq_table) {
 		kfree(all_freq_table->freq_table);