From a1531acd43310a7e4571d52e8846640667f4c74b Mon Sep 17 00:00:00 2001 From: Thomas Renninger Date: Tue, 29 Jul 2008 22:32:58 -0700 Subject: cpufreq acpi: only call _PPC after cpufreq ACPI init funcs got called already Ingo Molnar provided a fix to not call _PPC at processor driver initialization time in "[PATCH] ACPI: fix cpufreq regression" (git commit e4233dec749a3519069d9390561b5636a75c7579) But it can still happen that _PPC is called at processor driver initialization time. This patch should make sure that this is not possible anymore. Signed-off-by: Thomas Renninger Cc: Andi Kleen Cc: Len Brown Cc: Dave Jones Cc: Ingo Molnar Cc: Venkatesh Pallipadi Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'arch/powerpc') diff --git a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c b/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c index 69288f653144..3233fe84d158 100644 --- a/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c +++ b/arch/powerpc/platforms/cell/cbe_cpufreq_pmi.c @@ -96,6 +96,12 @@ static int pmi_notifier(struct notifier_block *nb, struct cpufreq_frequency_table *cbe_freqs; u8 node; + /* Should this really be called for CPUFREQ_ADJUST, CPUFREQ_INCOMPATIBLE + * and CPUFREQ_NOTIFY policy events?) + */ + if (event == CPUFREQ_START) + return 0; + cbe_freqs = cpufreq_frequency_get_table(policy->cpu); node = cbe_cpu_to_node(policy->cpu); -- cgit v1.2.3