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a987884295
The cpumf_pmu_notfier() hotplug callback lacks handling of the CPU_DOWN_FAILED case. That means, if CPU_DOWN_PREPARE failes, the PMC of the CPU is not setup again. Add handling for CPU_DOWN_FAILED transition to setup the PMC of the CPU. Signed-off-by: Anna-Maria Gleixner <anna-maria@linutronix.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>