From 55395ae72b6e5ae614d28df74158c47454652583 Mon Sep 17 00:00:00 2001 From: Satyam Sharma <satyam@infradead.org> Date: Tue, 2 Oct 2007 13:28:15 -0700 Subject: [CPUFREQ] cpufreq_stats: misc cpuinit section annotations * Stop referencing the callback directly from the __init and __exit functions of this driver, and instead explicitly call cpufreq_update_policy() et al. This enables the callback function to be marked as __cpuinit (and the notifier_block __cpuinitdata), thereby saving space when HOTPLUG_CPU=n. This also enables us to use other tricks to replace __cpuinit{data} in future. * cpufreq_stats_free_table() is only called from __cpuinit or __exit marked functions, making it an ideal candidate for __cpuexit. * Fix missing space in the module description Signed-off-by: Satyam Sharma <satyam@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Jones <davej@redhat.com> --- drivers/cpufreq/cpufreq_stats.c | 18 ++++++++---------- 1 file changed, 8 insertions(+), 10 deletions(-) (limited to 'drivers/cpufreq') diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c index 917b9bab9ccb..8a45d0f93e26 100644 --- a/drivers/cpufreq/cpufreq_stats.c +++ b/drivers/cpufreq/cpufreq_stats.c @@ -164,8 +164,7 @@ freq_table_get_index(struct cpufreq_stats *stat, unsigned int freq) return -1; } -static void -cpufreq_stats_free_table (unsigned int cpu) +static void __cpuexit cpufreq_stats_free_table(unsigned int cpu) { struct cpufreq_stats *stat = cpufreq_stats_table[cpu]; struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); @@ -305,8 +304,9 @@ cpufreq_stat_notifier_trans (struct notifier_block *nb, unsigned long val, return 0; } -static int cpufreq_stat_cpu_callback(struct notifier_block *nfb, - unsigned long action, void *hcpu) +static int __cpuinit cpufreq_stat_cpu_callback(struct notifier_block *nfb, + unsigned long action, + void *hcpu) { unsigned int cpu = (unsigned long)hcpu; @@ -323,7 +323,7 @@ static int cpufreq_stat_cpu_callback(struct notifier_block *nfb, return NOTIFY_OK; } -static struct notifier_block cpufreq_stat_cpu_notifier = +static struct notifier_block cpufreq_stat_cpu_notifier __cpuinitdata = { .notifier_call = cpufreq_stat_cpu_callback, }; @@ -356,8 +356,7 @@ __init cpufreq_stats_init(void) register_hotcpu_notifier(&cpufreq_stat_cpu_notifier); for_each_online_cpu(cpu) { - cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, - CPU_ONLINE, (void *)(long)cpu); + cpufreq_update_policy(cpu); } return 0; } @@ -372,13 +371,12 @@ __exit cpufreq_stats_exit(void) CPUFREQ_TRANSITION_NOTIFIER); unregister_hotcpu_notifier(&cpufreq_stat_cpu_notifier); for_each_online_cpu(cpu) { - cpufreq_stat_cpu_callback(&cpufreq_stat_cpu_notifier, - CPU_DEAD, (void *)(long)cpu); + cpufreq_stats_free_table(cpu); } } MODULE_AUTHOR ("Zou Nan hai <nanhai.zou@intel.com>"); -MODULE_DESCRIPTION ("'cpufreq_stats' - A driver to export cpufreq stats" +MODULE_DESCRIPTION ("'cpufreq_stats' - A driver to export cpufreq stats " "through sysfs filesystem"); MODULE_LICENSE ("GPL"); -- cgit v1.2.3-58-ga151