From: Borislav Petkov <bp@alien8.de>
To: X86 ML <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Peter Zijlstra <peterz@infradead.org>
Subject: [PATCH 3/6] x86/tsc: Do not check X86_FEATURE_CONSTANT_TSC in notifier call
Date: Tue, 5 Apr 2016 08:29:52 +0200 [thread overview]
Message-ID: <1459837795-2588-4-git-send-email-bp@alien8.de> (raw)
In-Reply-To: <1459837795-2588-1-git-send-email-bp@alien8.de>
From: Borislav Petkov <bp@suse.de>
... because the notifier-registering routine already does that. Also,
rename cpufreq_tsc() init call to something more telling.
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
---
arch/x86/kernel/tsc.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index a0346bc51833..5bb702c77e8f 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -922,9 +922,6 @@ static int time_cpufreq_notifier(struct notifier_block *nb, unsigned long val,
struct cpufreq_freqs *freq = data;
unsigned long *lpj;
- if (cpu_has(&cpu_data(freq->cpu), X86_FEATURE_CONSTANT_TSC))
- return 0;
-
lpj = &boot_cpu_data.loops_per_jiffy;
#ifdef CONFIG_SMP
if (!(freq->flags & CPUFREQ_CONST_LOOPS))
@@ -954,7 +951,7 @@ static struct notifier_block time_cpufreq_notifier_block = {
.notifier_call = time_cpufreq_notifier
};
-static int __init cpufreq_tsc(void)
+static int __init cpufreq_register_tsc_scaling(void)
{
if (!boot_cpu_has(X86_FEATURE_TSC))
return 0;
@@ -965,7 +962,7 @@ static int __init cpufreq_tsc(void)
return 0;
}
-core_initcall(cpufreq_tsc);
+core_initcall(cpufreq_register_tsc_scaling);
#endif /* CONFIG_CPU_FREQ */
--
2.7.3
next prev parent reply other threads:[~2016-04-05 6:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-05 6:29 [PATCH 0/6] x86: Misc cleanups Borislav Petkov
2016-04-05 6:29 ` [PATCH 1/6] x86/fpu/regset: Use boot_cpu_has() Borislav Petkov
2016-04-05 13:51 ` Brian Gerst
2016-04-05 15:11 ` Borislav Petkov
2016-04-13 11:41 ` [tip:x86/asm] x86/fpu/regset: Replace static_cpu_has() usage with boot_cpu_has() tip-bot for Borislav Petkov
2016-04-05 6:29 ` [PATCH 2/6] x86/cpu: Simplify extended APIC ID detection on AMD Borislav Petkov
2016-04-13 11:41 ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05 6:29 ` Borislav Petkov [this message]
2016-04-05 8:00 ` [PATCH 3/6] x86/tsc: Do not check X86_FEATURE_CONSTANT_TSC in notifier call Peter Zijlstra
2016-04-13 11:41 ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05 6:29 ` [PATCH 4/6] x86/tsc: Save an indentation level in recalibrate_cpu_khz() Borislav Petkov
2016-04-05 8:05 ` Peter Zijlstra
2016-04-13 11:42 ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05 6:29 ` [PATCH 5/6] x86/fpu: Remove check_fpu() indirection Borislav Petkov
2016-04-13 11:42 ` [tip:x86/asm] " tip-bot for Borislav Petkov
2016-04-05 6:29 ` [PATCH 6/6] x86/fpu: Get rid of x87 math exception helpers Borislav Petkov
2016-04-13 11:42 ` [tip:x86/asm] " tip-bot for Borislav Petkov
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