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Subject"PM / wakeup: Show wakeup sources stats in sysfs" causes boot warnings
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The linux-next commit "PM / wakeup: Show wakeup sources stats in sysfs" [1]
introduced some baddies during boot on several x86 servers. Reverted the commit
fixed the issue.

[1] https://lore.kernel.org/lkml/20190807014846.143949-4-trong@android.com/

[   39.195053][    T1] serio: i8042 KBD port at 0x60,0x64 irq 1
[   39.197347][    T1] kobject_add_internal failed for wakeup (error: -2 parent:
serio0)
[   39.199845][    T1] INFO: trying to register non-static key.
[   39.201582][    T1] the code is fine but needs lockdep annotation.
[   39.203477][    T1] turning off the locking correctness validator.
[   39.205399][    T1] CPU: 12 PID: 1 Comm: swapper/0 Not tainted 5.3.0-rc4-
next-20190813 #3
[   39.207938][    T1] Hardware name: HP ProLiant XL420 Gen9/ProLiant XL420
Gen9, BIOS U19 12/27/2015
[   39.210606][    T1] Call Trace:
[   39.210606][    T1]  dump_stack+0x62/0x9a
[   39.210606][    T1]  register_lock_class+0x95a/0x960
[   39.210606][    T1]  ? __platform_driver_probe+0xcd/0x230
[   39.210606][    T1]  ? __platform_create_bundle+0xc0/0xe0
[   39.210606][    T1]  ? i8042_init+0x4ec/0x578
[   39.210606][    T1]  ? do_one_initcall+0xfe/0x45a
[   39.219571][    T1]  ? kernel_init_freeable+0x614/0x6a7
[   39.219571][    T1]  ? kernel_init+0x11/0x138
[   39.219571][    T1]  ? ret_from_fork+0x35/0x40
[   39.219571][    T1]  ? is_dynamic_key+0xf0/0xf0
[   39.219571][    T1]  ? rwlock_bug.part.0+0x60/0x60
[   39.219571][    T1]  ? __debug_check_no_obj_freed+0x8e/0x250
[   39.219571][    T1]  __lock_acquire.isra.13+0x5f/0x830
[   39.229491][    T1]  ? __debug_check_no_obj_freed+0x152/0x250
[   39.229491][    T1]  lock_acquire+0x107/0x220
[   39.229491][    T1]  ? __pm_relax.part.2+0x21/0xa0
[   39.229491][    T1]  _raw_spin_lock_irqsave+0x35/0x50
[   39.229491][    T1]  ? __pm_relax.part.2+0x21/0xa0
[   39.229491][    T1]  __pm_relax.part.2+0x21/0xa0
[   39.239588][    T1]  wakeup_source_destroy.part.3+0x18/0x190
[   39.239588][    T1]  wakeup_source_register+0x43/0x50
[   39.239588][    T1]  device_wakeup_enable+0x76/0x170
[   39.239588][    T1]  device_set_wakeup_enable+0x13/0x20
[   39.239588][    T1]  i80probe+0x921/0xa45
[   39.339546][    T1]  ? i8042_toggle_aux+0xeb/0xeb
[   39.349486][    T1]  ? kernfs_create_link+0xce/0x100
[   39.349486][    T1]  ? sysfs_do_create_link_sd+0x7b/0xe0
[   39.349486][    T1]  ? acpi_dev_pm_attach+0x31/0xf0
[   39.349486][    T1]  platform_drv_probe+0x51/0xe0
[   39.349486][    T1]  really_probe+0x1a2/0x630
[   39.349486][    T1]  ? device_driver_attach+0xa0/0xa0
[   39.349486][    T1]  driver_probe_device+0xcd/0x1f0
[   39.359562][    T1]  ? device_driver_attach+0xa0/0xa0
[   39.359562][    T1]  device_driver_attach+0x8f/0xa0
[   39.359562][    T1]  __driver_attach+0xc7/0x1a0
[   39.359562][    T1]  bus_for_each_dev+0xfe/0x160
[   39.359562][    T1]  ? subsys_dev_iter_init+0x80/0x80
[   39.359562][    T1]  ? __kasan_check_read+0x11/0x20
[   39.359562][    T1]  ? _raw_spin_unlock+0x27/0x40
[   39.369488][    T1]  driver_attach+0x2b/0x30
[   39.369488][    T1]  bus_add_driver+0x298/0x350
[   39.369488][    T1]  driver_register+0xdc/0x1d0
[   39.369488][    T1]  ? i8042_toggle_aux+0xeb/0xeb
[   39.369488][    T1]  __platform_driver_probe+0xcd/0x230
[   39.3  __platform_create_bundle+0xc0/0xe0
[   39.769489][    T1]  ? i8042_toggle_aux+0xeb/0xeb
[   39.779556][    T1]  ? i8042_probe+0xa45/0xa45
[   39.779556][    T1]  i8042_init+0x4ec/0x578
[   39.779556][    T1]  ? i8042_probe+0xa45/0xa45
[   39.779556][    T1]  ? netdev_run_todo+0x2f/0x4a0
[   39.779556][    T1]  ? qdisc_create_dflt+0xf0/0xf0
[   39.779556][    T1]  ? net_olddevs_init+0x67/0x67
[   39.779556][    T1]  ? i8042_probe+0xa45/0xa45
[   39.789486][    T1]  do_one_initcall+0xfe/0x45a
[   39.789486][    T1]  ? initcall_blacklisted+0x150/0x150
[   39.789486][    T1]  ? __kasan_check_write+0x14/0x20
[   39.789486][    T1]  ? up_write+0xee/0x2a0
[   39.789486][    T1]  kernel_init_freeable+0x614/0x6a7
[   39.789486][    T1]  ? rest_init+0x188/0x188
[   39.789486][    T1]  kernel_init+0x11/0x138
[   39.799563][    T1]  ? rest_init+0x188/0x188
[   39.799563][    T1]  ret_from_fork+0x35/0x40
[   39.803412][    T1] serio: i8042 AUX port at 0x60,0x64 irq 12

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