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Message-Id: <4930072c05d216e86acd6246fdbc116bcc8026ac.1464876460.git.viresh.kumar@linaro.org>
Date: Thu, 2 Jun 2016 19:49:09 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Rafael Wysocki <rjw@...ysocki.net>,
Viresh Kumar <viresh.kumar@...aro.org>
Cc: linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org,
Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
Kevin Hilman <khilman@...nel.org>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>,
Kukjin Kim <kgene@...nel.org>, Sekhar Nori <nsekhar@...com>,
Shawn Guo <shawn.guo@...escale.com>,
Steven Miao <realmz6@...il.com>
Subject: [PATCH 09/11] cpufreq: maple: Use 'index' only to index into policy->freq_table
Later patches would make changes in cpufreq core, after which
policy->freq_table may be reordered by cpufreq core and it wouldn't be
safe anymore to use 'index' for any other local arrays.
To prepare for that, use policy->freq_table[index].driver_data for other
driver specific usage of 'index'. The 'driver_data' fields are already
set properly by the driver.
Cc: Dmitry Eremin-Solenikov <dbaryshkov@...il.com>
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
drivers/cpufreq/maple-cpufreq.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/cpufreq/maple-cpufreq.c b/drivers/cpufreq/maple-cpufreq.c
index d9df89392b84..8ce92ee7dd8d 100644
--- a/drivers/cpufreq/maple-cpufreq.c
+++ b/drivers/cpufreq/maple-cpufreq.c
@@ -133,6 +133,12 @@ static int maple_scom_query_freq(void)
static int maple_cpufreq_target(struct cpufreq_policy *policy,
unsigned int index)
{
+ /*
+ * policy->freq_table may be sorted differently, get the index value we
+ * are concerned about.
+ */
+ index = policy->freq_table[index].driver_data;
+
return maple_scom_switch_freq(index);
}
--
2.7.1.410.g6faf27b
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