44 lines
1.5 KiB
Diff
44 lines
1.5 KiB
Diff
From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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Date: Tue, 4 Apr 2017 17:43:55 +0200
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Subject: [PATCH] CPUFREQ: Loongson2: drop set_cpus_allowed_ptr()
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Origin: https://www.kernel.org/pub/linux/kernel/projects/rt/4.11/older/patches-4.11.9-rt7.tar.xz
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It is pure mystery to me why we need to be on a specific CPU while
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looking up a value in an array.
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My best shot at this is that before commit d4019f0a92ab ("cpufreq: move
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freq change notifications to cpufreq core") it was required to invoke
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cpufreq_notify_transition() on a special CPU.
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Since it looks like a waste, remove it.
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Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
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Cc: Viresh Kumar <viresh.kumar@linaro.org>
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Cc: linux-pm@vger.kernel.org
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Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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---
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drivers/cpufreq/loongson2_cpufreq.c | 7 -------
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1 file changed, 7 deletions(-)
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--- a/drivers/cpufreq/loongson2_cpufreq.c
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+++ b/drivers/cpufreq/loongson2_cpufreq.c
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@@ -51,19 +51,12 @@ static int loongson2_cpu_freq_notifier(s
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static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
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unsigned int index)
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{
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- unsigned int cpu = policy->cpu;
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- cpumask_t cpus_allowed;
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unsigned int freq;
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- cpus_allowed = current->cpus_allowed;
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- set_cpus_allowed_ptr(current, cpumask_of(cpu));
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-
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freq =
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((cpu_clock_freq / 1000) *
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loongson2_clockmod_table[index].driver_data) / 8;
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- set_cpus_allowed_ptr(current, &cpus_allowed);
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-
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/* setting the cpu frequency */
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clk_set_rate(policy->clk, freq * 1000);
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