* [PATCH 2/2] cpufreq: demand load governor modules
@ 2006-07-06 19:32 Jeremy Fitzhardinge
0 siblings, 0 replies; only message in thread
From: Jeremy Fitzhardinge @ 2006-07-06 19:32 UTC (permalink / raw)
To: cpufreq, Linux Kernel Mailing List
Demand-load cpufreq governor modules if needed.
Signed-off-by: Jeremy Fitzhardinge <jeremy@goop.org>
---
drivers/cpufreq/cpufreq.c | 17 +++++++++++++++++
1 file changed, 17 insertions(+)
diff -r 4650553b3f11 drivers/cpufreq/cpufreq.c
--- a/drivers/cpufreq/cpufreq.c Wed Jul 05 15:21:25 2006 -0700
+++ b/drivers/cpufreq/cpufreq.c Wed Jul 05 15:25:52 2006 -0700
@@ -320,6 +320,23 @@ static int cpufreq_parse_governor (char
mutex_lock(&cpufreq_governor_mutex);
t = __find_governor(str_governor);
+
+ if (t == NULL) {
+ char *name = kasprintf(GFP_KERNEL, "cpufreq_%s", str_governor);
+
+ if (name) {
+ int ret;
+
+ mutex_unlock(&cpufreq_governor_mutex);
+ ret = request_module(name);
+ mutex_lock(&cpufreq_governor_mutex);
+
+ if (ret == 0)
+ t = __find_governor(str_governor);
+ }
+
+ kfree(name);
+ }
if (t != NULL) {
*governor = t;
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