Commit c6a91405 authored by Sebastian Andrzej Siewior's avatar Sebastian Andrzej Siewior Committed by Thomas Gleixner
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platform/x86: intel_int0002_vgpio: Use generic_handle_irq_safe() 



On PREEMPT_RT enabled kernels the demultiplex interrupt handler is force
threaded and runs with interrupts enabled. The invocation of
generic_handle_irq() with interrupts enabled triggers a lockdep warning due
to a non-irq safe lock acquisition.

Instead of disabling interrupts on the driver level, use
generic_handle_domain_irq_safe().

[ tglx: Split out from combo patch ]

Signed-off-by: default avatarSebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/YnkfWFzvusFFktSt@linutronix.de
parent f285de79

drivers/platform/x86/intel/int0002_vgpio.c

+1 −2
Original line number Diff line number Diff line
@@ -125,8 +125,7 @@ static irqreturn_t int0002_irq(int irq, void *data) 
	if (!(gpe_sts_reg & GPE0A_PME_B0_STS_BIT))

		return IRQ_NONE;



	generic_handle_irq(irq_find_mapping(chip->irq.domain,

					    GPE0A_PME_B0_VIRT_GPIO_PIN));

	generic_handle_domain_irq_safe(chip->irq.domain, GPE0A_PME_B0_VIRT_GPIO_PIN);



	pm_wakeup_hard_event(chip->parent);