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Date: Mon, 1 Apr 2013 18:27:46 +0530
From: Viresh Kumar <viresh.kumar@...aro.org>
To: rjw@...k.pl
Cc: cpufreq@...r.kernel.org, linux-pm@...r.kernel.org,
linux-kernel@...r.kernel.org,
Viresh Kumar <viresh.kumar@...aro.org>,
Ralf Baechle <ralf@...ux-mips.org>,
Paul Mundt <lethal@...ux-sh.org>,
"David S. Miller" <davem@...emloft.net>,
Thomas Renninger <trenn@...e.de>,
Borislav Petkov <bp@...en8.de>, linux-mips@...ux-mips.org,
linux-sh@...r.kernel.org, sparclinux@...r.kernel.org
Subject: [PATCH 6/9] cpufreq: Don't check if cpu is online/offline for cpufreq callbacks
cpufreq layer doesn't call cpufreq driver's callback for any offline cpu and so
checking that isn't useful.
Lets get rid of it.
Signed-off-by: Viresh Kumar <viresh.kumar@...aro.org>
Cc: Ralf Baechle <ralf@...ux-mips.org>
Cc: Paul Mundt <lethal@...ux-sh.org>
Cc: David S. Miller <davem@...emloft.net>
Cc: Thomas Renninger <trenn@...e.de>
Cc: Borislav Petkov <bp@...en8.de>
Cc: linux-mips@...ux-mips.org
Cc: linux-sh@...r.kernel.org
Cc: sparclinux@...r.kernel.org
Cc: linux-kernel@...r.kernel.org
---
arch/mips/kernel/cpufreq/loongson2_cpufreq.c | 6 ------
arch/sh/kernel/cpufreq.c | 6 ------
arch/sparc/kernel/us2e_cpufreq.c | 6 ------
arch/sparc/kernel/us3_cpufreq.c | 6 ------
drivers/cpufreq/p4-clockmod.c | 3 +--
drivers/cpufreq/powernow-k8.c | 3 ---
drivers/cpufreq/speedstep-centrino.c | 4 ----
7 files changed, 1 insertion(+), 33 deletions(-)
diff --git a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
index bafda70..8488957 100644
--- a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
+++ b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
@@ -61,9 +61,6 @@ static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
struct cpufreq_freqs freqs;
unsigned int freq;
- if (!cpu_online(cpu))
- return -ENODEV;
-
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -109,9 +106,6 @@ static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
unsigned long rate;
int ret;
- if (!cpu_online(policy->cpu))
- return -ENODEV;
-
cpuclk = clk_get(NULL, "cpu_clk");
if (IS_ERR(cpuclk)) {
printk(KERN_ERR "cpufreq: couldn't get CPU clk\n");
diff --git a/arch/sh/kernel/cpufreq.c b/arch/sh/kernel/cpufreq.c
index 2c7bd94..0fdf64b 100644
--- a/arch/sh/kernel/cpufreq.c
+++ b/arch/sh/kernel/cpufreq.c
@@ -51,9 +51,6 @@ static int sh_cpufreq_target(struct cpufreq_policy *policy,
struct device *dev;
long freq;
- if (!cpu_online(cpu))
- return -ENODEV;
-
cpus_allowed = current->cpus_allowed;
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -111,9 +108,6 @@ static int sh_cpufreq_cpu_init(struct cpufreq_policy *policy)
struct cpufreq_frequency_table *freq_table;
struct device *dev;
- if (!cpu_online(cpu))
- return -ENODEV;
-
dev = get_cpu_device(cpu);
cpuclk = clk_get(dev, "cpu_clk");
diff --git a/arch/sparc/kernel/us2e_cpufreq.c b/arch/sparc/kernel/us2e_cpufreq.c
index abe963d..306ae46 100644
--- a/arch/sparc/kernel/us2e_cpufreq.c
+++ b/arch/sparc/kernel/us2e_cpufreq.c
@@ -234,9 +234,6 @@ static unsigned int us2e_freq_get(unsigned int cpu)
cpumask_t cpus_allowed;
unsigned long clock_tick, estar;
- if (!cpu_online(cpu))
- return 0;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -257,9 +254,6 @@ static void us2e_set_cpu_divider_index(struct cpufreq_policy *policy,
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
- if (!cpu_online(cpu))
- return;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
diff --git a/arch/sparc/kernel/us3_cpufreq.c b/arch/sparc/kernel/us3_cpufreq.c
index 7ceb9c8..c71ee14 100644
--- a/arch/sparc/kernel/us3_cpufreq.c
+++ b/arch/sparc/kernel/us3_cpufreq.c
@@ -82,9 +82,6 @@ static unsigned int us3_freq_get(unsigned int cpu)
unsigned long reg;
unsigned int ret;
- if (!cpu_online(cpu))
- return 0;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
@@ -104,9 +101,6 @@ static void us3_set_cpu_divider_index(struct cpufreq_policy *policy,
cpumask_t cpus_allowed;
struct cpufreq_freqs freqs;
- if (!cpu_online(cpu))
- return;
-
cpumask_copy(&cpus_allowed, tsk_cpus_allowed(current));
set_cpus_allowed_ptr(current, cpumask_of(cpu));
diff --git a/drivers/cpufreq/p4-clockmod.c b/drivers/cpufreq/p4-clockmod.c
index 4b2e773..421ef37 100644
--- a/drivers/cpufreq/p4-clockmod.c
+++ b/drivers/cpufreq/p4-clockmod.c
@@ -58,8 +58,7 @@ static int cpufreq_p4_setdc(unsigned int cpu, unsigned int newstate)
{
u32 l, h;
- if (!cpu_online(cpu) ||
- (newstate > DC_DISABLE) || (newstate == DC_RESV))
+ if ((newstate > DC_DISABLE) || (newstate == DC_RESV))
return -EINVAL;
rdmsr_on_cpu(cpu, MSR_IA32_THERM_STATUS, &l, &h);
diff --git a/drivers/cpufreq/powernow-k8.c b/drivers/cpufreq/powernow-k8.c
index 52137a3..b828efe 100644
--- a/drivers/cpufreq/powernow-k8.c
+++ b/drivers/cpufreq/powernow-k8.c
@@ -1102,9 +1102,6 @@ static int __cpuinit powernowk8_cpu_init(struct cpufreq_policy *pol)
struct init_on_cpu init_on_cpu;
int rc;
- if (!cpu_online(pol->cpu))
- return -ENODEV;
-
smp_call_function_single(pol->cpu, check_supported_cpu, &rc, 1);
if (rc)
return -ENODEV;
diff --git a/drivers/cpufreq/speedstep-centrino.c b/drivers/cpufreq/speedstep-centrino.c
index 3dbbcc3..618e6f4 100644
--- a/drivers/cpufreq/speedstep-centrino.c
+++ b/drivers/cpufreq/speedstep-centrino.c
@@ -481,10 +481,6 @@ static int centrino_target (struct cpufreq_policy *policy,
for_each_cpu(j, policy->cpus) {
int good_cpu;
- /* cpufreq holds the hotplug lock, so we are safe here */
- if (!cpu_online(j))
- continue;
-
/*
* Support for SMP systems.
* Make sure we are running on CPU that wants to change freq
--
1.7.12.rc2.18.g61b472e
--
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