From foo@baz Tue Apr 9 12:12:43 2002 Date: Thu, 1 Nov 2007 10:39:50 -0700 (PDT) To: Greg KH From: Greg Kroah-Hartman Subject: kset: convert /sys/power to use kset_create Dynamically create the kset instead of declaring it statically. We also rename power_subsys to power_kset to catch all users of the variable and we properly export it so that people don't have to guess that it really is present in the system. The pseries code is wierd, why is it createing /sys/power if CONFIG_PM is disabled? Oh well, stupid big boxes ignoring config options... Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- arch/arm/mach-omap1/pm.c | 3 +-- arch/powerpc/platforms/pseries/power.c | 14 ++++++-------- include/linux/kobject.h | 2 ++ kernel/power/disk.c | 2 +- kernel/power/main.c | 11 +++++------ kernel/power/power.h | 2 -- 6 files changed, 15 insertions(+), 19 deletions(-) --- a/arch/arm/mach-omap1/pm.c +++ b/arch/arm/mach-omap1/pm.c @@ -97,7 +97,6 @@ static struct subsys_attribute sleep_whi .store = omap_pm_sleep_while_idle_store, }; -extern struct kset power_subsys; static void (*omap_sram_idle)(void) = NULL; static void (*omap_sram_suspend)(unsigned long r0, unsigned long r1) = NULL; @@ -726,7 +725,7 @@ static int __init omap_pm_init(void) omap_pm_init_proc(); #endif - error = subsys_create_file(&power_subsys, &sleep_while_idle_attr); + error = subsys_create_file(power_kset, &sleep_while_idle_attr); if (error) printk(KERN_ERR "subsys_create_file failed: %d\n", error); --- a/arch/powerpc/platforms/pseries/power.c +++ b/arch/powerpc/platforms/pseries/power.c @@ -57,7 +57,7 @@ static struct subsys_attribute auto_powe }; #ifndef CONFIG_PM -decl_subsys(power, NULL); +struct kset *power_kset; static struct attribute *g[] = { &auto_poweron_attr.attr, @@ -70,18 +70,16 @@ static struct attribute_group attr_group static int __init pm_init(void) { - int error = subsystem_register(&power_subsys); - if (!error) - error = sysfs_create_group(&power_subsys.kobj, &attr_group); - return error; + power_kset = kset_create_and_add("power", NULL, NULL); + if (!power_kset) + return -ENOMEM; + return sysfs_create_group(&power_kset->kobj, &attr_group); } core_initcall(pm_init); #else -extern struct kset power_subsys; - static int __init apo_pm_init(void) { - return (subsys_create_file(&power_subsys, &auto_poweron_attr)); + return (subsys_create_file(power_kset, &auto_poweron_attr)); } __initcall(apo_pm_init); #endif --- a/include/linux/kobject.h +++ b/include/linux/kobject.h @@ -198,6 +198,8 @@ struct kset _name##_subsys = { \ extern struct kset *kernel_kset; /* The global /sys/hypervisor/ kobject for people to chain off of */ extern struct kobject *hypervisor_kobj; +/* The global /sys/power/ kset for people to chain off of */ +extern struct kset *power_kset; extern int __must_check subsystem_register(struct kset *); extern void subsystem_unregister(struct kset *); --- a/kernel/power/disk.c +++ b/kernel/power/disk.c @@ -708,7 +708,7 @@ static struct attribute_group attr_group static int __init pm_disk_init(void) { - return sysfs_create_group(&power_subsys.kobj, &attr_group); + return sysfs_create_group(&power_kset->kobj, &attr_group); } core_initcall(pm_disk_init); --- a/kernel/power/main.c +++ b/kernel/power/main.c @@ -276,8 +276,7 @@ EXPORT_SYMBOL(pm_suspend); #endif /* CONFIG_SUSPEND */ -decl_subsys(power, NULL); - +struct kset *power_kset; /** * state - control system power state. @@ -386,10 +385,10 @@ static struct attribute_group attr_group static int __init pm_init(void) { - int error = subsystem_register(&power_subsys); - if (!error) - error = sysfs_create_group(&power_subsys.kobj,&attr_group); - return error; + power_kset = kset_create_and_add("power", NULL, NULL); + if (!power_kset) + return -ENOMEM; + return sysfs_create_group(&power_kset->kobj, &attr_group); } core_initcall(pm_init); --- a/kernel/power/power.h +++ b/kernel/power/power.h @@ -63,8 +63,6 @@ static struct subsys_attribute _name##_a .store = _name##_store, \ } -extern struct kset power_subsys; - /* Preferred image size in bytes (default 500 MB) */ extern unsigned long image_size; extern int in_suspend;