| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <a993d20f82cc02f76fd5b0a7660182373087fa97.1464876460.git.viresh.kumar@linaro.org>
Date: Thu, 2 Jun 2016 19:49:03 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: Rafael Wysocki <rjw@...ysocki.net>,
Viresh Kumar <viresh.kumar@...aro.org>,
Sudeep Holla <sudeep.holla@....com>,
Kukjin Kim <kgene@...nel.org>,
Krzysztof Kozlowski <k.kozlowski@...sung.com>
Cc: linaro-kernel@...ts.linaro.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-samsung-soc@...r.kernel.org,
Dmitry Eremin-Solenikov <dbaryshkov@...il.com>,
Kevin Hilman <khilman@...nel.org>,
Sekhar Nori <nsekhar@...com>,
Shawn Guo <shawn.guo@...escale.com>,
Steven Miao <realmz6@...il.com>
Subject: [PATCH 03/11] cpufreq: Use policy->freq_table in ->target_index()
The 'policy' already contains a pointer to the freq table, use that
instead of using driver specific tables name.
This is done in order to make sure that the 'index' passed to the
->target_index() callback is used *only* to index into the
policy->freq_table and nothing else.
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 array.
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
---
drivers/cpufreq/arm_big_little.c | 2 +-
drivers/cpufreq/at32ap-cpufreq.c | 2 +-
drivers/cpufreq/blackfin-cpufreq.c | 2 +-
drivers/cpufreq/cris-artpec3-cpufreq.c | 2 +-
drivers/cpufreq/cris-etraxfs-cpufreq.c | 2 +-
drivers/cpufreq/dbx500-cpufreq.c | 3 ++-
drivers/cpufreq/e_powersaver.c | 2 +-
drivers/cpufreq/exynos5440-cpufreq.c | 3 +--
drivers/cpufreq/imx6q-cpufreq.c | 2 +-
drivers/cpufreq/kirkwood-cpufreq.c | 2 +-
drivers/cpufreq/loongson2_cpufreq.c | 5 ++---
11 files changed, 13 insertions(+), 14 deletions(-)
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
index 418042201e6d..fc9e863e39d6 100644
--- a/drivers/cpufreq/arm_big_little.c
+++ b/drivers/cpufreq/arm_big_little.c
@@ -217,7 +217,7 @@ static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
cur_cluster = cpu_to_cluster(cpu);
new_cluster = actual_cluster = per_cpu(physical_cluster, cpu);
- freqs_new = freq_table[cur_cluster][index].frequency;
+ freqs_new = policy->freq_table[index].frequency;
if (is_bL_switching_enabled()) {
if ((actual_cluster == A15_CLUSTER) &&
diff --git a/drivers/cpufreq/at32ap-cpufreq.c b/drivers/cpufreq/at32ap-cpufreq.c
index 7b612c8bb09e..9231b1efb70d 100644
--- a/drivers/cpufreq/at32ap-cpufreq.c
+++ b/drivers/cpufreq/at32ap-cpufreq.c
@@ -31,7 +31,7 @@ static int at32_set_target(struct cpufreq_policy *policy, unsigned int index)
unsigned int old_freq, new_freq;
old_freq = policy->cur;
- new_freq = freq_table[index].frequency;
+ new_freq = policy->freq_table[index].frequency;
if (!ref_freq) {
ref_freq = old_freq;
diff --git a/drivers/cpufreq/blackfin-cpufreq.c b/drivers/cpufreq/blackfin-cpufreq.c
index 12e97d8a9db0..1650c213f465 100644
--- a/drivers/cpufreq/blackfin-cpufreq.c
+++ b/drivers/cpufreq/blackfin-cpufreq.c
@@ -142,7 +142,7 @@ static int bfin_target(struct cpufreq_policy *policy, unsigned int index)
#endif
old_freq = bfin_getfreq_khz(0);
- new_freq = bfin_freq_table[index].frequency;
+ new_freq = policy->freq_table[index].frequency;
#ifndef CONFIG_BF60x
plldiv = (bfin_read_PLL_DIV() & SSEL) | dpm_state_table[index].csel;
diff --git a/drivers/cpufreq/cris-artpec3-cpufreq.c b/drivers/cpufreq/cris-artpec3-cpufreq.c
index 601b88c490cf..4e7dc8f1e619 100644
--- a/drivers/cpufreq/cris-artpec3-cpufreq.c
+++ b/drivers/cpufreq/cris-artpec3-cpufreq.c
@@ -36,7 +36,7 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
/* Even though we may be SMP they will share the same clock
* so all settings are made on CPU0. */
- if (cris_freq_table[state].frequency == 200000)
+ if (policy->freq_table[state].frequency == 200000)
clk_ctrl.pll = 1;
else
clk_ctrl.pll = 0;
diff --git a/drivers/cpufreq/cris-etraxfs-cpufreq.c b/drivers/cpufreq/cris-etraxfs-cpufreq.c
index 22b2cdde74d9..6ee434a54cae 100644
--- a/drivers/cpufreq/cris-etraxfs-cpufreq.c
+++ b/drivers/cpufreq/cris-etraxfs-cpufreq.c
@@ -36,7 +36,7 @@ static int cris_freq_target(struct cpufreq_policy *policy, unsigned int state)
/* Even though we may be SMP they will share the same clock
* so all settings are made on CPU0. */
- if (cris_freq_table[state].frequency == 200000)
+ if (policy->freq_table[state].frequency == 200000)
clk_ctrl.pll = 1;
else
clk_ctrl.pll = 0;
diff --git a/drivers/cpufreq/dbx500-cpufreq.c b/drivers/cpufreq/dbx500-cpufreq.c
index 5c3ec1dd4921..84968889ab29 100644
--- a/drivers/cpufreq/dbx500-cpufreq.c
+++ b/drivers/cpufreq/dbx500-cpufreq.c
@@ -23,7 +23,8 @@ static int dbx500_cpufreq_target(struct cpufreq_policy *policy,
unsigned int index)
{
/* update armss clk frequency */
- return clk_set_rate(armss_clk, freq_table[index].frequency * 1000);
+ return clk_set_rate(armss_clk,
+ policy->freq_table[index].frequency * 1000);
}
static int dbx500_cpufreq_init(struct cpufreq_policy *policy)
diff --git a/drivers/cpufreq/e_powersaver.c b/drivers/cpufreq/e_powersaver.c
index cdf097b29862..a284bddfb067 100644
--- a/drivers/cpufreq/e_powersaver.c
+++ b/drivers/cpufreq/e_powersaver.c
@@ -163,7 +163,7 @@ static int eps_target(struct cpufreq_policy *policy, unsigned int index)
centaur = eps_cpu[cpu];
/* Make frequency transition */
- dest_state = centaur->freq_table[index].driver_data & 0xffff;
+ dest_state = policy->freq_table[index].driver_data & 0xffff;
ret = eps_set_state(centaur, policy, dest_state);
if (ret)
pr_err("Timeout!\n");
diff --git a/drivers/cpufreq/exynos5440-cpufreq.c b/drivers/cpufreq/exynos5440-cpufreq.c
index c0f3373706f4..085f07d31ef0 100644
--- a/drivers/cpufreq/exynos5440-cpufreq.c
+++ b/drivers/cpufreq/exynos5440-cpufreq.c
@@ -212,12 +212,11 @@ static int exynos_target(struct cpufreq_policy *policy, unsigned int index)
{
unsigned int tmp;
int i;
- struct cpufreq_frequency_table *freq_table = dvfs_info->freq_table;
mutex_lock(&cpufreq_lock);
freqs.old = policy->cur;
- freqs.new = freq_table[index].frequency;
+ freqs.new = policy->freq_table[index].frequency;
cpufreq_freq_transition_begin(policy, &freqs);
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index ef1fa8145419..3858dc7e617b 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -49,7 +49,7 @@ static int imx6q_set_target(struct cpufreq_policy *policy, unsigned int index)
unsigned int old_freq, new_freq;
int ret;
- new_freq = freq_table[index].frequency;
+ new_freq = policy->freq_table[index].frequency;
freq_hz = new_freq * 1000;
old_freq = clk_get_rate(arm_clk) / 1000;
diff --git a/drivers/cpufreq/kirkwood-cpufreq.c b/drivers/cpufreq/kirkwood-cpufreq.c
index be42f103db60..f63bf4fcb6fe 100644
--- a/drivers/cpufreq/kirkwood-cpufreq.c
+++ b/drivers/cpufreq/kirkwood-cpufreq.c
@@ -54,7 +54,7 @@ static unsigned int kirkwood_cpufreq_get_cpu_frequency(unsigned int cpu)
static int kirkwood_cpufreq_target(struct cpufreq_policy *policy,
unsigned int index)
{
- unsigned int state = kirkwood_freq_table[index].driver_data;
+ unsigned int state = policy->freq_table[index].driver_data;
unsigned long reg;
local_irq_disable();
diff --git a/drivers/cpufreq/loongson2_cpufreq.c b/drivers/cpufreq/loongson2_cpufreq.c
index 6bbdac1065ff..e96c98f9245a 100644
--- a/drivers/cpufreq/loongson2_cpufreq.c
+++ b/drivers/cpufreq/loongson2_cpufreq.c
@@ -58,9 +58,8 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
- freq =
- ((cpu_clock_freq / 1000) *
- loongson2_clockmod_table[index].driver_data) / 8;
+ freq = (cpu_clock_freq / 1000) * policy->freq_table[index].driver_data;
+ freq /= 8;
set_cpus_allowed_ptr(current, &cpus_allowed);
--
2.7.1.410.g6faf27b
Powered by blists - more mailing lists