Commit 269777aa authored Aug 15, 2018 by Abel Vesa Committed by Linus Torvalds Aug 14, 2018

cpu/hotplug: Non-SMP machines do not make use of booted_once



Commit 0cc3cd21 ("cpu/hotplug: Boot HT siblings at least once")
breaks non-SMP builds.

[ I suspect the 'bool' fields should just be made to be bitfields and be
  exposed regardless of configuration, but that's a separate cleanup
  that I'll leave to the owners of this file for later.   - Linus ]

Fixes: 0cc3cd21 ("cpu/hotplug: Boot HT siblings at least once")
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Signed-off-by: Abel Vesa <abelvesa@linux.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent e6ecec34

kernel/cpu.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -2278,6 +2278,8 @@ void __init boot_cpu_init(void)
		*/
		void __init boot_cpu_hotplug_init(void)
		{
		#ifdef CONFIG_SMP
		this_cpu_write(cpuhp_state.booted_once, true);
		#endif
		this_cpu_write(cpuhp_state.state, CPUHP_ONLINE);
		}

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